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• Is Berkeley DB a NoSQL solution?

  - by Gregory Burd

  Berkeley DB is a library. To use it to store data you must link the library into your application. You can use most programming languages to access the API, the calls across these APIs generally mimic the Berkeley DB C-API which makes perfect sense because Berkeley DB is written in C. The inspiration for Berkeley DB was the DBM library, a part of the earliest versions of UNIX written by AT&T's Ken Thompson in 1979. DBM was a simple key/value hashtable-based storage library. In the early 1990s as BSD UNIX was transitioning from version 4.3 to 4.4 and retrofitting commercial code owned by AT&T with unencumbered code, it was the future founders of Sleepycat Software who wrote libdb (aka Berkeley DB) as the replacement for DBM. The problem it addressed was fast, reliable local key/value storage. At that time databases almost always lived on a single node, even the most sophisticated databases only had simple fail-over two node solutions. If you had a lot of data to store you would choose between the few commercial RDBMS solutions or to write your own custom solution. Berkeley DB took the headache out of the custom approach. These basic market forces inspired other DBM implementations. There was the "New DBM" (ndbm) and the "GNU DBM" (GDBM) and a few others, but the theme was the same. Even today TokyoCabinet calls itself "a modern implementation of DBM" mimicking, and improving on, something first created over thirty years ago. In the mid-1990s, DBM was the name for what you needed if you were looking for fast, reliable local storage. Fast forward to today. What's changed? Systems are connected over fast, very reliable networks. Disks are cheep, fast, and capable of storing huge amounts of data. CPUs continued to follow Moore's Law, processing power that filled a room in 1990 now fits in your pocket. PCs, servers, and other computers proliferated both in business and the personal markets. In addition to the new hardware entire markets, social systems, and new modes of interpersonal communication moved onto the web and started evolving rapidly. These changes cause a massive explosion of data and a need to analyze and understand that data. Taken together this resulted in an entirely different landscape for database storage, new solutions were needed. A number of novel solutions stepped up and eventually a category called NoSQL emerged. The new market forces inspired the CAP theorem and the heated debate of BASE vs. ACID. But in essence this was simply the market looking at what to trade off to meet these new demands. These new database systems shared many qualities in common. There were designed to address massive amounts of data, millions of requests per second, and scale out across multiple systems. The first large-scale and successful solution was Dynamo, Amazon's distributed key/value database. Dynamo essentially took the next logical step and added a twist. Dynamo was to be the database of record, it would be distributed, data would be partitioned across many nodes, and it would tolerate failure by avoiding single points of failure. Amazon did this because they recognized that the majority of the dynamic content they provided to customers visiting their web store front didn't require the services of an RDBMS. The queries were simple, key/value look-ups or simple range queries with only a few queries that required more complex joins. They set about to use relational technology only in places where it was the best solution for the task, places like accounting and order fulfillment, but not in the myriad of other situations. The success of Dynamo, and it's design, inspired the next generation of Non-SQL, distributed database solutions including Cassandra, Riak and Voldemort. The problem their designers set out to solve was, "reliability at massive scale" so the first focal point was distributed database algorithms. Underneath Dynamo there is a local transactional database; either Berkeley DB, Berkeley DB Java Edition, MySQL or an in-memory key/value data structure. Dynamo was an evolution of local key/value storage onto networks. Cassandra, Riak, and Voldemort all faced similar design decisions and one, Voldemort, choose Berkeley DB Java Edition for it's node-local storage. Riak at first was entirely in-memory, but has recently added write-once, append-only log-based on-disk storage similar type of storage as Berkeley DB except that it is based on a hash table which must reside entirely in-memory rather than a btree which can live in-memory or on disk. Berkeley DB evolved too, we added high availability (HA) and a replication manager that makes it easy to setup replica groups. Berkeley DB's replication doesn't partitioned the data, every node keeps an entire copy of the database. For consistency, there is a single node where writes are committed first - a master - then those changes are delivered to the replica nodes as log records. Applications can choose to wait until all nodes are consistent, or fire and forget allowing Berkeley DB to eventually become consistent. Berkeley DB's HA scales-out quite well for read-intensive applications and also effectively eliminates the central point of failure by allowing replica nodes to be elected (using a PAXOS algorithm) to mastership if the master should fail. This implementation covers a wide variety of use cases. MemcacheDB is a server that implements the Memcache network protocol but uses Berkeley DB for storage and HA to replicate the cache state across all the nodes in the cache group. Google Accounts, the user authentication layer for all Google properties, was until recently running Berkeley DB HA. That scaled to a globally distributed system. That said, most NoSQL solutions try to partition (shard) data across nodes in the replication group and some allow writes as well as reads at any node, Berkeley DB HA does not. So, is Berkeley DB a "NoSQL" solution? Not really, but it certainly is a component of many of the existing NoSQL solutions out there. Forgetting all the noise about how NoSQL solutions are complex distributed databases when you boil them down to a single node you still have to store the data to some form of stable local storage. DBMs solved that problem a long time ago. NoSQL has more to do with the layers on top of the DBM; the distributed, sometimes-consistent, partitioned, scale-out storage that manage key/value or document sets and generally have some form of simple HTTP/REST-style network API. Does Berkeley DB do that? Not really. Is Berkeley DB a "NoSQL" solution today? Nope, but it's the most robust solution on which to build such a system. Re-inventing the node-local data storage isn't easy. A lot of people are starting to come to appreciate the sophisticated features found in Berkeley DB, even mimic them in some cases. Could Berkeley DB grow into a NoSQL solution? Absolutely. Our key/value API could be extended over the net using any of a number of existing network protocols such as memcache or HTTP/REST. We could adapt our node-local data partitioning out over replicated nodes. We even have a nice query language and cost-based query optimizer in our BDB XML product that we could reuse were we to build out a document-based NoSQL-style product. XML and JSON are not so different that we couldn't adapt one to work with the other interchangeably. Without too much effort we could add what's missing, we could jump into this No SQL market withing a single product development cycle. Why isn't Berkeley DB already a NoSQL solution? Why aren't we working on it? Why indeed...

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• Benchmarking MySQL Replication with Multi-Threaded Slaves

  - by Mat Keep

  0 0 1 1145 6530 Homework 54 15 7660 14.0 Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:Cambria; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin; mso-ansi-language:EN-US;} The objective of this benchmark is to measure the performance improvement achieved when enabling the Multi-Threaded Slave enhancement delivered as a part MySQL 5.6. As the results demonstrate, Multi-Threaded Slaves delivers 5x higher replication performance based on a configuration with 10 databases/schemas. For real-world deployments, higher replication performance directly translates to: · Improved consistency of reads from slaves (i.e. reduced risk of reading "stale" data) · Reduced risk of data loss should the master fail before replicating all events in its binary log (binlog) The multi-threaded slave splits processing between worker threads based on schema, allowing updates to be applied in parallel, rather than sequentially. This delivers benefits to those workloads that isolate application data using databases - e.g. multi-tenant systems deployed in cloud environments. Multi-Threaded Slaves are just one of many enhancements to replication previewed as part of the MySQL 5.6 Development Release, which include: · Global Transaction Identifiers coupled with MySQL utilities for automatic failover / switchover and slave promotion · Crash Safe Slaves and Binlog · Optimized Row Based Replication · Replication Event Checksums · Time Delayed Replication These and many more are discussed in the “MySQL 5.6 Replication: Enabling the Next Generation of Web & Cloud Services” Developer Zone article  Back to the benchmark - details are as follows. Environment The test environment consisted of two Linux servers: · one running the replication master · one running the replication slave. Only the slave was involved in the actual measurements, and was based on the following configuration: - Hardware: Oracle Sun Fire X4170 M2 Server - CPU: 2 sockets, 6 cores with hyper-threading, 2930 MHz. - OS: 64-bit Oracle Enterprise Linux 6.1 - Memory: 48 GB Test Procedure Initial Setup: Two MySQL servers were started on two different hosts, configured as replication master and slave. 10 sysbench schemas were created, each with a single table: CREATE TABLE `sbtest` (    `id` int(10) unsigned NOT NULL AUTO_INCREMENT,    `k` int(10) unsigned NOT NULL DEFAULT '0',    `c` char(120) NOT NULL DEFAULT '',    `pad` char(60) NOT NULL DEFAULT '',    PRIMARY KEY (`id`),    KEY `k` (`k`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 10,000 rows were inserted in each of the 10 tables, for a total of 100,000 rows. When the inserts had replicated to the slave, the slave threads were stopped. The slave data directory was copied to a backup location and the slave threads position in the master binlog noted. 10 sysbench clients, each configured with 10 threads, were spawned at the same time to generate a random schema load against each of the 10 schemas on the master. Each sysbench client executed 10,000 "update key" statements: UPDATE sbtest set k=k+1 WHERE id = <random row> In total, this generated 100,000 update statements to later replicate during the test itself. Test Methodology: The number of slave workers to test with was configured using: SET GLOBAL slave_parallel_workers=<workers> Then the slave IO thread was started and the test waited for all the update queries to be copied over to the relay log on the slave. The benchmark clock was started and then the slave SQL thread was started. The test waited for the slave SQL thread to finish executing the 100k update queries, doing "select master_pos_wait()". When master_pos_wait() returned, the benchmark clock was stopped and the duration calculated. The calculated duration from the benchmark clock should be close to the time it took for the SQL thread to execute the 100,000 update queries. The 100k queries divided by this duration gave the benchmark metric, reported as Queries Per Second (QPS). Test Reset: The test-reset cycle was implemented as follows: · the slave was stopped · the slave data directory replaced with the previous backup · the slave restarted with the slave threads replication pointer repositioned to the point before the update queries in the binlog. The test could then be repeated with identical set of queries but a different number of slave worker threads, enabling a fair comparison. The Test-Reset cycle was repeated 3 times for 0-24 number of workers and the QPS metric calculated and averaged for each worker count. MySQL Configuration The relevant configuration settings used for MySQL are as follows: binlog-format=STATEMENT relay-log-info-repository=TABLE master-info-repository=TABLE As described in the test procedure, the slave_parallel_workers setting was modified as part of the test logic. The consequence of changing this setting is: 0 worker threads:    - current (i.e. single threaded) sequential mode    - 1 x IO thread and 1 x SQL thread    - SQL thread both reads and executes the events 1 worker thread:    - sequential mode    - 1 x IO thread, 1 x Coordinator SQL thread and 1 x Worker thread    - coordinator reads the event and hands it to the worker who executes 2+ worker threads:    - parallel execution    - 1 x IO thread, 1 x Coordinator SQL thread and 2+ Worker threads    - coordinator reads events and hands them to the workers who execute them Results Figure 1 below shows that Multi-Threaded Slaves deliver ~5x higher replication performance when configured with 10 worker threads, with the load evenly distributed across our 10 x schemas. This result is compared to the current replication implementation which is based on a single SQL thread only (i.e. zero worker threads). Figure 1: 5x Higher Performance with Multi-Threaded Slaves The following figure shows more detailed results, with QPS sampled and reported as the worker threads are incremented. The raw numbers behind this graph are reported in the Appendix section of this post. Figure 2: Detailed Results As the results above show, the configuration does not scale noticably from 5 to 9 worker threads. When configured with 10 worker threads however, scalability increases significantly. The conclusion therefore is that it is desirable to configure the same number of worker threads as schemas. Other conclusions from the results: · Running with 1 worker compared to zero workers just introduces overhead without the benefit of parallel execution. · As expected, having more workers than schemas adds no visible benefit. Aside from what is shown in the results above, testing also demonstrated that the following settings had a very positive effect on slave performance: relay-log-info-repository=TABLE master-info-repository=TABLE For 5+ workers, it was up to 2.3 times as fast to run with TABLE compared to FILE. Conclusion As the results demonstrate, Multi-Threaded Slaves deliver significant performance increases to MySQL replication when handling multiple schemas. This, and the other replication enhancements introduced in MySQL 5.6 are fully available for you to download and evaluate now from the MySQL Developer site (select Development Release tab). You can learn more about MySQL 5.6 from the documentation  Please don’t hesitate to comment on this or other replication blogs with feedback and questions. Appendix – Detailed Results

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• Microsoft Offloaded Data Transfer (ODX)

  - by Charles Cline

  For all you admins and other technical people out there who have watched the Windows OS spool the data from network storage to your workstation and then back to network storage, watch for Offloaded Data Transfer (ODX).  I saw ODX at TechEd a few weeks ago and the data movement is primarily kept at the backend storage network.  EMC and other storage vendors are already posting about when they will have this functionality.Here's some information about it:http://msdn.microsoft.com/en-us/library/windows/desktop/hh848056(v=vs.85).aspxhttp://msdn.microsoft.com/en-us/library/windows/desktop/hh848056(v=vs.85).aspx

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• ??????????????????

  - by kazun

  2012 ? 8 ? 9 ???????????? ?? 13F ??????????????????????? DB ???????????????????????????????????????????????????????·????????????·??????????Exadata ?????????? Hybrid Columnar Compression(HCC)?????????????????????????????? (1)?????????????????IT????????????? ?????????????·??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????IT???????????????????ZFS Storage Appliances ????????100Petabytes ??(8 ? 9 ???)? ZFS Storage ?????????????????????????????????????????????????????????????????????? (2)????????????????????????????? ??????????? VTR ???????????????????? EOL(End of Life)????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????7 ??????????? StorageTek SL150 ??????????????????????????450TB(????)?30~300 ????????????????????????? 10.1TB?????????????????????????????????????????????????????????????????????????????? ??:StorageTek SL150(????????????) ?????????????????????????????????????????????????????????? (3)Oracle????????????????????????? ??????(????????)????????????????????????????????????????????????Sun ZFS Storage Appliance?????????????????????????????Sun ZFS Storage Appliance ?Pillar Axiom ???????????????????????????? ?????????Oracle Database?????????????????????????????????????????? Database ????????? Hybrid Columnar Compression / Snapshot?Clone????????????????DB???????? I/O Quality of Services?????????DB??? ????? ???Optimized Solutions????Oracle??????(??????????????????)????????????????????????????????Exadata ?? InfiniBand ?????????????????1?????? ??????????????????????????????????????????????Oracle Database ? Exadata ?????????????????????????? Oracle ?????????????????????? Sun ZFS Storage 7120 Appliance ??????????????????????? ??:Sun ZFS Storage 7120 Appliance (4)?????????Oracle Database ??????????????? “Hybrid Columnar Compression (HCC) ” ????????????? HCC??????????????????????????????????????????????????? I/O ????????????????????????????????????????????Oracle Database ???? HCC ??????????????? ?????:?Oracle ????·???? 2009?12? Exadata Hybrid Columnar Compression? ?????????Sun ZFS Storage Appliance ?Pillar Axiom ?????????4??????HCC??????????????????? HCC ???????? HCC ???????? Exadata ? DataGuard ?????HCC ?????????????????????? Exadata ??????????????·??????????????? DB ??????? HCC ?????? ?????????????????????????HCC ?????????????????????????????????? ?????????? HCC ?????????????????????ZFS Storage Appliance ? Pillar Axiom ?????????????????????? 6 ?????????????????????????????????????? ¦???????? ???????????

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• Exchange 2007 Standard Edition

  - by Phrontiste

  We Have : Exchange 2007 Standard Edition IBM System X3650 2 x Intel Xeon 5430 2.66 GHz Version 8.1 Build 240.6 Mailbox, Hub Transport, Client Access Role Installed on One Box Total Number of Mailboxes : 110 - 130 6 Physical Disks Disk 0,1 (68 GB) = Raid-1, OS Partition ( C: Partition) Disk 2,3 (279GB) = Raid-1, Exchange Database (First and Second Storage Groups) ( D: Partition ) Disk 4,5 (68 GB) = Raid-1, Exchange Transaction Logs ( E: Partition ) Setup: Storage Groups : D:\First Storage group\Mailbox database.edb Storage Groups : D:\Second Storage Group\Public Folder Database.edb Transaction Logs : E Partition Problem 1: On our D Partition (Mailbox Database Partition), total size is 279 GB, free space remaining is 64.7 GB, when I select the first storage group and second storage group folders and right click properties they report a size of 165 GB. Mailbox database reports a size of 157GB when right clicked Properties. where as the size displayed in the folder is 164,893,456 KB So, we are missing around 50-54 GB, there is nothing else on these drives, no page file, nothing at all. The partition housing the Transaction logs is reporting the sizes accurately. Any suggestions / fixes on the above ? Problem 2: As you may have already read in Problem 1, the size of the mailbox database is 157GB or 164GB reported; which is not recommended, a) What would you suggest we should do to divide mailboxes in storage groups on this same server ? b) How would we move mailboxes into different storage groups ? c) This is the information store size ? (Am I right in thinking that this is not recommended) d) Having multiple storage groups with one Mailbox DB in each, would that reduce the size of the Information Store? e) Any suggestions / how-to reduce the size of information store ? We didn't install this, we have inherited this - what other recommendations you can make in order to keep ourselves better prepared for any server disaster? We are backing up with Yosemite Backup on RD1000 (320GB) at the moment, which is backing up successfully, flushing the logs daily. We haven't done a test restore YET. I have tried to provide as much info as possible, please let me know if you need further info. Also, we haven't yet faced any problems in mailflow, access speeds, everything is working fine, we have two to five people accessing OWA or Outlook via vpn only. Thanks for your time to read the above - will look forward to your expert suggestions.

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• Safe, standard way to load images in ListView on a different thread?

  - by Po

  Before making this question, I have searched and read these ones: http://stackoverflow.com/questions/541966/android-how-do-i-do-a-lazy-load-of-images-in-listview http://stackoverflow.com/questions/1409623/android-issue-with-lazy-loading-images-into-a-listview My problem is I have a ListView, where: Each row contains an ImageView, whose content is to be loaded from the internet Each row's view is recycled as in ApiDemo's List14 What I want ultimately: Load images lazily, only when the user scrolls to them Load images on different thread(s) to maintain responsiveness My current approach: In the adapter's getView() method, apart from setting up other child views, I launch a new thread that loads the Bitmap from the internet. When that loading thread finishes, it returns the Bitmap to be set on the ImageView (I do this using AsyncTask or Handler). Because I recycle ImageViews, it may be the case that I first want to set a view with Bitmap#1, then later want to set it to Bitmap#2 when the user scrolls down. Bitmap#1 may happen to take longer than Bitmap#2 to load, so it may end up overwriting Bitmap#2 on the view. I solve this by maintaining a WeakHashMap that remembers the last Bitmap I want to set for that view. Below is somewhat a pseudocode for my current approach. I've ommitted other details like caching, just to keep the thing clear. public class ImageLoader { // keeps track of the last Bitmap we want to set for this ImageView private static final WeakHashMap<ImageView, AsyncTask> assignments = new WeakHashMap<ImageView, AsyncTask>(); /** Asynchronously sets an ImageView to some Bitmap loaded from the internet */ public static void setImageAsync(final ImageView imageView, final String imageUrl) { // cancel whatever previous task AsyncTask oldTask = assignments.get(imageView); if (oldTask != null) { oldTask.cancel(true); } // prepare to launch a new task to load this new image AsyncTask<String, Integer, Bitmap> newTask = new AsyncTask<String, Integer, Bitmap>() { protected void onPreExecute() { // set ImageView to some "loading..." image } protected Bitmap doInBackground(String... urls) { return loadFromInternet(imageUrl); } protected void onPostExecute(Bitmap bitmap) { // set Bitmap if successfully loaded, or an "error" image if (bitmap != null) { imageView.setImageBitmap(bitmap); } else { imageView.setImageResource(R.drawable.error); } } }; newTask.execute(); // mark this as the latest Bitmap we want to set for this ImageView assignments.put(imageView, newTask); } /** returns (Bitmap on success | null on error) */ private Bitmap loadFromInternet(String imageUrl) {} } Problem I still have: what if the Activity gets destroyed while some images are still loading? Is there any risk when the loading thread calls back to the ImageView later, when the Activity is already destroyed? Moreover, AsyncTask has some global thread-pool underneath, so if lengthy tasks are not canceled when they're not needed anymore, I may end up wasting time loading things users don't see. My current design of keeping this thing globally is too ugly, and may eventually cause some leaks that are beyond my understanding. Instead of making ImageLoader a singleton like this, I'm thinking of actually creating separate ImageLoader objects for different Activities, then when an Activity gets destroyed, all its AsyncTask will be canceled. Is this too awkward? Anyway, I wonder if there is a safe and standard way of doing this in Android. In addition, I don't know iPhone but is there a similar problem there and do they have a standard way to do this kind of task? Many thanks.

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• How to figure out who owns a worker thread that is still running when my app exits?

  - by Dave

  Not long after upgrading to VS2010, my application won't shut down cleanly. If I close the app and then hit pause in the IDE, I see this: The problem is, there's no context. The call stack just says [External code], which isn't too helpful. Here's what I've done so far to try to narrow down the problem: deleted all extraneous plugins to minimize the number of worker threads launched set breakpoints in my code anywhere I create worker threads (and delegates + BeginInvoke, since I think they are labeled "Worker Thread" in the debugger anyway). None were hit. set IsBackground = true for all threads While I could do the next brute force step, which is to roll my code back to a point where this didn't happen and then look over all of the change logs, this isn't terribly efficient. Can anyone recommend a better way to figure this out, given the notable lack of information presented by the debugger? The only other things I can think of include: read up on WinDbg and try to use it to stop anytime a thread is started. At least, I thought that was possible... :) comment out huge blocks of code until the app closes properly, then start uncommenting until it doesn't. UPDATE Perhaps this information will be of use. I decided to use WinDbg and attach to my application. I then closed it, and switched to thread 0 and dumped the stack contents. Here's what I have: ThreadCount: 6 UnstartedThread: 0 BackgroundThread: 1 PendingThread: 0 DeadThread: 4 Hosted Runtime: no PreEmptive GC Alloc Lock ID OSID ThreadOBJ State GC Context Domain Count APT Exception 0 1 1c70 005a65c8 6020 Enabled 02dac6e0:02dad7f8 005a03c0 0 STA 2 2 1b20 005b1980 b220 Enabled 00000000:00000000 005a03c0 0 MTA (Finalizer) XXXX 3 08504048 19820 Enabled 00000000:00000000 005a03c0 0 Ukn XXXX 4 08504540 19820 Enabled 00000000:00000000 005a03c0 0 Ukn XXXX 5 08516a90 19820 Enabled 00000000:00000000 005a03c0 0 Ukn XXXX 6 08517260 19820 Enabled 00000000:00000000 005a03c0 0 Ukn 0:008> ~0s eax=c0674960 ebx=00000000 ecx=00000000 edx=00000000 esi=0040f320 edi=005a65c8 eip=76c37e47 esp=0040f23c ebp=0040f258 iopl=0 nv up ei pl nz na po nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000202 USER32!NtUserGetMessage+0x15: 76c37e47 83c404 add esp,4 0:000> !clrstack OS Thread Id: 0x1c70 (0) Child SP IP Call Site 0040f274 76c37e47 [InlinedCallFrame: 0040f274] 0040f270 6baa8976 DomainBoundILStubClass.IL_STUB_PInvoke(System.Windows.Interop.MSG ByRef, System.Runtime.InteropServices.HandleRef, Int32, Int32)*** WARNING: Unable to verify checksum for C:\Windows\assembly\NativeImages_v4.0.30319_32\WindowsBase\d17606e813f01376bd0def23726ecc62\WindowsBase.ni.dll 0040f274 6ba924c5 [InlinedCallFrame: 0040f274] MS.Win32.UnsafeNativeMethods.IntGetMessageW(System.Windows.Interop.MSG ByRef, System.Runtime.InteropServices.HandleRef, Int32, Int32) 0040f2c4 6ba924c5 MS.Win32.UnsafeNativeMethods.GetMessageW(System.Windows.Interop.MSG ByRef, System.Runtime.InteropServices.HandleRef, Int32, Int32) 0040f2dc 6ba8e5f8 System.Windows.Threading.Dispatcher.GetMessage(System.Windows.Interop.MSG ByRef, IntPtr, Int32, Int32) 0040f318 6ba8d579 System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame) 0040f368 6ba8d2a1 System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame) 0040f374 6ba7fba0 System.Windows.Threading.Dispatcher.Run() 0040f380 62e6ccbb System.Windows.Application.RunDispatcher(System.Object)*** WARNING: Unable to verify checksum for C:\Windows\assembly\NativeImages_v4.0.30319_32\PresentationFramewo#\7f91eecda3ff7ce478146b6458580c98\PresentationFramework.ni.dll 0040f38c 62e6c8ff System.Windows.Application.RunInternal(System.Windows.Window) 0040f3b0 62e6c682 System.Windows.Application.Run(System.Windows.Window) 0040f3c0 62e6c30b System.Windows.Application.Run() 0040f3cc 001f00bc MyApplication.App.Main() [C:\code\trunk\MyApplication\obj\Debug\GeneratedInternalTypeHelper.g.cs @ 24] 0040f608 66c421db [GCFrame: 0040f608] EDIT -- not sure if this helps, but the main thread's call stack looks like this: [Managed to Native Transition] > WindowsBase.dll!MS.Win32.UnsafeNativeMethods.GetMessageW(ref System.Windows.Interop.MSG msg, System.Runtime.InteropServices.HandleRef hWnd, int uMsgFilterMin, int uMsgFilterMax) + 0x15 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.GetMessage(ref System.Windows.Interop.MSG msg, System.IntPtr hwnd, int minMessage, int maxMessage) + 0x48 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame frame = {System.Windows.Threading.DispatcherFrame}) + 0x85 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame frame) + 0x49 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.Run() + 0x4c bytes PresentationFramework.dll!System.Windows.Application.RunDispatcher(object ignore) + 0x17 bytes PresentationFramework.dll!System.Windows.Application.RunInternal(System.Windows.Window window) + 0x6f bytes PresentationFramework.dll!System.Windows.Application.Run(System.Windows.Window window) + 0x26 bytes PresentationFramework.dll!System.Windows.Application.Run() + 0x1b bytes I did a search on it and found some posts related to WPF GUIs hanging, and maybe that'll give me some more clues.

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• Tip#102: Did you know… How to specify tag specific formatting

  - by The Official Microsoft IIS Site

  Let’s see this with an example.  I have the following html code on my page. Now if I format the document by selecting Edit –> Format document (or Ctrl K, Ctrl D) The document becomes I want the content inside td should remain on the same line after formatting the document. Following steps would show how you can specify tag specific formatting for the Visual Studio editor Right click on the editor in an aspx file and select Formatting and Validation... (or alternatively you can go from Menu...(read more)

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• How can I disable usb-autosuspend for a specific device?

  - by black_puppydog

  This is related to the issue discussed in this question. Summary: the mouse freezes when operating on battery since it is autosuspended after a certain time and needs more time to wake up. Disabling usb-autosuspend for the mouse's receiver in powertop is a temporary solution but does not survive a reboot. How can I permanently disable the usb autosuspend for only one specific device? A solution that does not involve installing additional packages is preferred (after all, I want to disable something) but not required. Removing powertop (which seems to be a solution for some) is not what I want - I like poertop... And installing laptop-mode-tools to disable usb_autosuspend alltogether is not what I want, either, thus the new question. Also: will this affect the battery of my notebook? The logitech unifying receiver for the mouse stays connected all the time, so if that prevents the autosuspend from happening for all devices that would probably be bad.

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• Can you shade a specific section of a sprite? If so, how?

  - by l5p4ngl312

  I have been working on an isometric minecraft-esque game engine for a strategy game I plan on making. As you can see, it really needs some sort of shading. It is difficult to distinguish between separate elevations when the camera is facing away from the slope because everything is the same shade. So my question is: can I shade just a specific section of a sprite? All of those blocks are just sprites, so if I shaded the entire image, it would shade the whole block. I am using LWJGL. Heres a link to a screenshot from the engine: http://i44.tinypic.com/qxqlix.jpg

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• Which specific practices could be called "software craftsmanship" rather than "software engineering"?

  - by FinnNk

  Although not a new idea there seems to have been a big increase in the interest in software craftsmanship over the last couple of years (notably the often recommended book Clean Code's full title is Clean Code: A Handbook of Agile Software Craftsmanship). Personally I see software craftsmanship as good software engineering with an added interest in ensuring that the end result is a joy to work with (both as an end user and as someone maintaining that software) - and also that its focus is more at the coding level of things than the higher level process things. To draw an analogy - there were lots of buildings constructed in the 50s and 60s in a very modern style which took very little account of the people who would be living in them or how those buildings would age over time. Many of those buildings rapidly developed into slums or have been demolished long before their expected lifespans. I'm sure most developers with a few years under their belts will have experienced similar codebases. What are the specific things that a software craftsman might do that a software engineer (possibly a bad one) might not?

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• How to disable OSD notifications for specific email addresses?

  - by Zuul

  I receive several logs per day via email, either from testing operations, server status or backup resumes. Can I some how disable the notification balloon either by a specific email address, the email subject or any other possible filter, as to not be constantly notified about the success operations? I've looked within the Notify OSD Configuration, but couldn't find any option to this end. Since the email comes with different information when errors occur, I already have filters within Thunderbird as to move error logs to a folder that I keep tabs on... If relevant, I'm using Ubuntu 12.04 fully updated, and Thunderbird 15.0.1.

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• What issues lead people to use Japanese-specific encodings rather than Unicode?

  - by Nicolas Raoul

  At work I come across a lot of Japanese text files in Shift-JIS and other encodings. It causes many mojibake (unreadable character) problems for all computer users. Unicode was intended to solve this sort of problem by defining a single character set for all languages, and the UTF-8 serialization is recommended for use on the Internet. So why doesn't everybody switch from Japanese-specific encodings to UTF-8? What issues with or disadvantages of UTF-8 are holding people back? EDIT: The W3C lists some known problems with Unicode, could this be a reason too?

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• Are there any specific workflows or design patterns that are commonly used to create large functional programming applications?

  - by Andrew

  I have been exploring Clojure for a while now, although I haven't used it on any nontrivial projects. Basically, I have just been getting comfortable with the syntax and some of the idioms. Coming from an OOP background, with Clojure being the first functional language that I have looked very much into, I'm naturally not as comfortable with the functional way of doing things. That said, are there any specific workflows or design patterns that are common with creating large functional applications? I'd really like to start using functional programming "for real", but I'm afraid that with my current lack of expertise, it would result in an epic fail. The "Gang of Four" is such a standard for OO programmers, but is there anything similar that is more directed at the functional paradigm? Most of the resources that I have found have great programming nuggets, but they don't step back to give a broader, more architectural look.

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• What services exist for finding someone specific to then run your own peer to peer software with?

  - by psr

  If you give people peer to peer software (such as a web sockets application if the peer to peer part gets implemented, but could be anything) the first step for some kinds of applications is to find a specific person and try to connect with them. If neither of you has a URI (and knows what it is) you need a third party to handle finding each other and verifying your identities. After that the third party isn't needed because you go peer to peer. I could of course write that third party software and put it up on a website, but then I would have to write that third party software and put it up on a website (or a server that isn't a website if that's how I want to do it). Does anyone offer this service? Ideally as a website and of course ideally free.

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• Can you shade a specific section of a sprite? If so, how? [Java]

  - by l5p4ngl312

  I have been working on an isometric minecraft-esque game engine for a strategy game I plan on making. As you can see, it really needs some sort of shading. It is difficult to distinguish between separate elevations when the camera is facing away from the slope because everything is the same shade. So my question is: can I shade just a specific section of a sprite? All of those blocks are just sprites, so if I shaded the entire image, it would shade the whole block. I am using LWJGL. Heres a link to a screenshot from the engine: http://i44.tinypic.com/qxqlix.jpg

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• How to change icons of specific file types on Ubuntu 11.10?

  - by Curious Apprentice

  I want to change file icons of some specific file types like- .html, .css etc. I have tried using "File Type Editor (assogiate)" which is not working. I have also tried using "Gnome Tweak Tool" using icon themes. But that also does not worked properly (Though I can change folder icons , dash menu icons but not file icons). Please suggest me a way so that I can change file icons properly. I have read some of the articles saying about some mime type changes. I could not get proper guide from any of those articles. If there is such a way then please write in detail. Many Many Thanks in Advance :)

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• Is there a version control system that can show changes to a specific method or function?

  - by chesles

  Sometimes it would be nice to be able to say something like: (git|svn|hg|etc) diff Foo.c:main (git|svn|hg|etc) log log Foo.c:main to see the changes made to a specific function within a source file since the last commit, or the complete history of changes. My question is two-fold: Does something exist that does this? Would such a tool be practical? It would have to do some simple parsing of the code at each revision in order to compare different versions of the function; would the overhead be too much for it to be efficient?

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• Does using a country domain (TLD) negatively effect a site's search ranking if the site content isn't country specific?

  - by Alexizamerican

  I have a website in which the content is not country specific. The TLD is currently .it but the company is hosted and based in the United States. I'm wondering if a .it domain will negatively effect the site's search rankings. Is it better to use a .com TLD? For example (I don't actually own these domains), would the domain love.it have a worse ranking than loveit.com? (Assuming the content of the sites is the same) I've been searching everywhere for an answer with not much luck. Any advice would be very helpful.

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• Asynchronous pages in the ASP.NET framework - where are the other threads and how is it reattached?

  - by rkrauter

  Sorry for this dumb question on Asynchronous operations. This is how I understand it. IIS has a limited set of worker threads waiting for requests. If one request is a long running operation, it will block that thread. This leads to fewer threads to serve requests. Way to fix this - use asynchronous pages. When a request comes in, the main worker thread is freed and this other thread is created in some other place. The main thread is thus able to serve other requests. When the request completes on this other thread, another thread is picked from the main thread pool and the response is sent back to the client. 1) Where are these other threads located? 2) IF ASP.NET likes creating new threads, why not increase the number of threads in the main worker pool - they are all running on the same machine anyway? 3) If the main thread hands off a request to this other thread, why does the request not get disconnected? It magically hands off the request to another worker thread somewhere else and when the long running process completes, it picks a thread from the main worker pool and sends response to the client. I am amazed...but how does that work?

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• Problems with Threading in Python 2.5, KeyError: 51, Help debugging?

  - by vignesh-k

  I have a python script which runs a particular script large number of times (for monte carlo purpose) and the way I have scripted it is that, I queue up the script the desired number of times it should be run then I spawn threads and each thread runs the script once and again when its done. Once the script in a particular thread is finished, the output is written to a file by accessing a lock (so my guess was that only one thread accesses the lock at a given time). Once the lock is released by one thread, the next thread accesses it and adds its output to the previously written file and rewrites it. I am not facing a problem when the number of iterations is small like 10 or 20 but when its large like 50 or 150, python returns a KeyError: 51 telling me element doesn't exist and the error it points out to is within the lock which puzzles me since only one thread should access the lock at once and I do not expect an error. This is the class I use: class errorclass(threading.Thread): def __init__(self, queue): self.__queue=queue threading.Thread.__init__(self) def run(self): while 1: item = self.__queue.get() if item is None: break result = myfunction() lock = threading.RLock() lock.acquire() ADD entries from current thread to entries in file and REWRITE FILE lock.release() queue = Queue.Queue() for i in range(threads): errorclass(queue).start() for i in range(desired iterations): queue.put(i) for i in range(threads): queue.put(None) Python returns with KeyError: 51 for large number of desired iterations during the adding/write file operation after lock access, I am wondering if this is the correct way to use the lock since every thread has a lock operation rather than every thread accessing a shared lock? What would be the way to rectify this?

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• What's the deal with the hidden Throw when catching a ThreadAbortException?

  - by priehl

  I'm going through a book of general c# development, and I've come to the thread abort section. The book says something along the lines that when you call Thread.Abort() on another thread, that thread will throw a ThreadAbortException, and even if you tried to supress it it would automatically rethrow it, unless you did some bs that's generally frowned upon. Here's the simple example offered. using System; using System.Threading; public class EntryPoint { private static void ThreadFunc() { ulong counter = 0; while (true) { try { Console.WriteLine("{0}", counter++); } catch (ThreadAbortException) { // Attempt to swallow the exception and continue. Console.WriteLine("Abort!"); } } } static void Main() { try { Thread newThread = new Thread(new ThreadStart(EntryPoint.ThreadFunc)); newThread.Start(); Thread.Sleep(2000); // Abort the thread. newThread.Abort(); // Wait for thread to finish. newThread.Join(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } } The book says: When your thread finishes processing the abort exception, the runtime implicitly rethrows it at the end of your exception handler. It’s the same as if you had rethrown the exception yourself. Therefore, any outer exception handlers or finally blocks will still execute normally. In the example, the call to Join won’t be waiting forever as initially expected. So i wrapped a try catch around the Thread.Abort() call and set a break point, expecting it to hit this, considering the text says "any outer exception handlers or finally blocks will still execute normally". BUT IT DOES NOT. I'm racking my brain to figure out why. Anyone have any thoughts on why this isn't the case? Is the book wrong? Thanks in advance.

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• HTML5 Local Storage of audio element source - is it possible?

  - by andrewdotcom

  Hi stackoverflow experts I've been experimenting with the audio and local storage features of html5 of late and have run into something that has me stumped. I'd like to be able to cache or store the source of the audio element locally to enable speedier and offline playback. The problem is I can't see how this is possible with the current implementation. I have tried the following using webkit: Creating a manifest file to set up local caching but the audio file appears not to be a cacheable item maybe due to the way it is stream or something I have also attempted to use javascript to put an audio object into local storage but the size of the mp3 makes this impossible due to memory issues (i think). I have tried to use the data uri and base64 to use the html as a audio transport that can be cached but again the filesize makes this prohibitive. Also the audio element does not seem to like this in webkit (works fine in mozilla) I have tried several methods of putting the data into the local database store. Again suffering the same issues as the other cases. I'd love to hear any other ideas anyone may have as to how I could achieve my goal of offline playback using caching/local storage in webkit.

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• iTunes crashes with "Attempt to allocate 1073741824 bytes for NS/CFData failed" error

  - by kubi

  This is a pretty common occurrence. Every two days or so iTunes will crash on me with this error. FYI, 1073741824 is 2^30, which is gigabyte. The crash log is below if you're interested. Process: iTunes [40778] Path: /Applications/iTunes.app/Contents/MacOS/iTunes Identifier: com.apple.iTunes Version: 9.0.1 (9.0.1) Build Info: iTunes-9010901~2 Code Type: X86 (Native) Parent Process: launchd [638] Date/Time: 2009-10-21 11:35:55.159 -0400 OS Version: Mac OS X 10.6.1 (10B504) Report Version: 6 Interval Since Last Report: 38292 sec Per-App Interval Since Last Report: 63956 sec Per-App Crashes Since Last Report: 1 Anonymous UUID: A7149D8A-1161-4740-976B-DB99AE1B01DD Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Crashed Thread: 13 Application Specific Information: *** Terminating app due to uncaught exception 'NSMallocException', reason: 'Attempt to allocate 1073741824 bytes for NS/CFData failed' *** Call stack at first throw: ( 0 CoreFoundation 0x9924958a __raiseError + 410 1 libobjc.A.dylib 0x9440df49 objc_exception_throw + 56 2 Foundation 0x945e2fda _NSSearchForNameInPath + 0 3 CoreFoundation 0x99262ca5 __CFDataHandleOutOfMemory + 101 4 CoreFoundation 0x9919f27d __CFDataGrow + 717 5 CoreFoundation 0x9919ce0a CFDataReplaceBytes + 362 6 CoreFoundation 0x9919e63a CFDataAppendBytes + 154 7 iTunes 0x00522808 0x0 + 5384200 8 iTunes 0x00523471 0x0 + 5387377 9 iTunes 0x00441bc8 0x0 + 4463560 10 CoreFoundation 0x9923eba3 _signalEventSync + 99 11 CoreFoundation 0x9923f58e _cfstream_solo_signalEventSync + 126 12 CoreFoundation 0x9923f4d7 CFReadStreamSignalEvent + 39 13 CFNetwork 0x97374c23 _ZN14HTTPReadStream11streamEventEm + 169 14 CoreFoundation 0x9923eba3 _signalEventSync + 99 15 CoreFoundation 0x9923eb1a _cfstream_shared_signalEventSync + 458 16 CoreFoundation 0x991b58cb __CFRunLoopDoSources0 + 1563 17 CoreFoundation 0x991b385f __CFRunLoopRun + 1071 18 CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 19 CoreFoundation 0x991b87a4 CFRunLoopRun + 84 20 iTunes 0x0000ade8 0x0 + 44520 21 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 22 libSystem.B.dylib 0x96de9dbe thread_start + 34 ) Thread 0: Dispatch queue: com.apple.main-thread 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b2b61 CFRunLoopRunInMode + 97 5 com.apple.HIToolbox 0x97c3bfec RunCurrentEventLoopInMode + 392 6 com.apple.HIToolbox 0x97c3bda3 ReceiveNextEventCommon + 354 7 com.apple.HIToolbox 0x97dc3d91 ReceiveNextEvent + 83 8 com.apple.iTunes 0x00135fae 0x1000 + 1265582 9 com.apple.HIToolbox 0x97c0f129 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*) + 1567 10 com.apple.HIToolbox 0x97c0e3f0 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*) + 411 11 com.apple.HIToolbox 0x97c0e24f SendEventToEventTargetWithOptions + 58 12 com.apple.HIToolbox 0x97c42c0c ToolboxEventDispatcherHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*) + 3006 13 com.apple.HIToolbox 0x97c0f57a DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*) + 2672 14 com.apple.HIToolbox 0x97c0e3f0 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*) + 411 15 com.apple.HIToolbox 0x97c30a81 SendEventToEventTarget + 52 16 com.apple.HIToolbox 0x97db98f7 ToolboxEventDispatcher + 86 17 com.apple.HIToolbox 0x97db9a2f RunApplicationEventLoop + 243 18 com.apple.iTunes 0x00135d84 0x1000 + 1265028 19 com.apple.iTunes 0x00135c70 0x1000 + 1264752 20 com.apple.iTunes 0x0000d2af 0x1000 + 49839 21 com.apple.iTunes 0x000049a8 0x1000 + 14760 22 com.apple.iTunes 0x00002bfb 0x1000 + 7163 23 com.apple.iTunes 0x00002b29 0x1000 + 6953 Thread 1: Dispatch queue: com.apple.libdispatch-manager 0 libSystem.B.dylib 0x96de303a kevent + 10 1 libSystem.B.dylib 0x96de3768 _dispatch_mgr_invoke + 215 2 libSystem.B.dylib 0x96de2bf9 _dispatch_queue_invoke + 183 3 libSystem.B.dylib 0x96de298a _dispatch_worker_thread2 + 234 4 libSystem.B.dylib 0x96de2401 _pthread_wqthread + 390 5 libSystem.B.dylib 0x96de2246 start_wqthread + 30 Thread 2: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x0000ade8 0x1000 + 40424 6 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 7 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 3: 0 libSystem.B.dylib 0x96ddb756 select$DARWIN_EXTSN + 10 1 com.apple.CoreFoundation 0x991f304d __CFSocketManager + 1085 2 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 3 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 4: 0 libSystem.B.dylib 0x96e84766 accept$NOCANCEL$UNIX2003 + 10 1 libSystem.B.dylib 0x96e8363e accept + 32 2 com.apple.iTunes 0x0044c792 0x1000 + 4503442 3 com.apple.iTunes 0x004a86cd 0x1000 + 4880077 4 com.apple.iTunes 0x004a879b 0x1000 + 4880283 5 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 6 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 5: 0 libSystem.B.dylib 0x96e84766 accept$NOCANCEL$UNIX2003 + 10 1 libSystem.B.dylib 0x96e8363e accept + 32 2 com.apple.iTunes 0x0044c792 0x1000 + 4503442 3 com.apple.iTunes 0x004a86cd 0x1000 + 4880077 4 com.apple.iTunes 0x004a879b 0x1000 + 4880283 5 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 6 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 6: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x00135e09 0x1000 + 1265161 6 com.apple.iTunes 0x00135cc5 0x1000 + 1264837 7 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 8 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 7: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x0000ade8 0x1000 + 40424 6 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 7 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 8: 0 libSystem.B.dylib 0x96dbc83a semaphore_timedwait_signal_trap + 10 1 libSystem.B.dylib 0x96dea3c1 _pthread_cond_wait + 1066 2 libSystem.B.dylib 0x96e19208 pthread_cond_timedwait_relative_np + 47 3 com.apple.iTunes 0x0004ca83 0x1000 + 309891 4 com.apple.iTunes 0x0004c7cb 0x1000 + 309195 5 com.apple.iTunes 0x0004c76a 0x1000 + 309098 6 com.apple.iTunes 0x0004c5bb 0x1000 + 308667 7 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 8 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 9: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x0000ade8 0x1000 + 40424 6 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 7 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 10: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x0000ade8 0x1000 + 40424 6 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 7 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 11: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x0000ade8 0x1000 + 40424 6 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 7 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 12: 0 libSystem.B.dylib 0x96dbc822 semaphore_wait_signal_trap + 10 1 libSystem.B.dylib 0x96dea3d8 _pthread_cond_wait + 1089 2 libSystem.B.dylib 0x96e3370f pthread_cond_wait + 48 3 com.apple.iTunes 0x0000ae70 0x1000 + 40560 4 com.apple.iTunes 0x0000ad06 0x1000 + 40198 5 com.apple.iTunes 0x004418a1 0x1000 + 4458657 6 com.apple.iTunes 0x0043f960 0x1000 + 4450656 7 com.apple.iTunes 0x00525475 0x1000 + 5391477 8 com.apple.iTunes 0x00525c0d 0x1000 + 5393421 9 com.apple.iTunes 0x0004c62c 0x1000 + 308780 10 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 11 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 13 Crashed: 0 com.apple.CoreFoundation 0x99293b07 ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ + 7 1 libobjc.A.dylib 0x9440df49 objc_exception_throw + 56 2 com.apple.CoreFoundation 0x991b2fbc CFRunLoopRunSpecific + 1100 3 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 4 com.apple.iTunes 0x0000ade8 0x1000 + 40424 5 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 6 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 14: 0 libSystem.B.dylib 0x96dbc7da mach_msg_trap + 10 1 libSystem.B.dylib 0x96dbcf47 mach_msg + 68 2 com.apple.CoreFoundation 0x991b3dbf __CFRunLoopRun + 2447 3 com.apple.CoreFoundation 0x991b2d34 CFRunLoopRunSpecific + 452 4 com.apple.CoreFoundation 0x991b87a4 CFRunLoopRun + 84 5 com.apple.iTunes 0x0000ade8 0x1000 + 40424 6 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 7 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 15: 0 libSystem.B.dylib 0x96dbc822 semaphore_wait_signal_trap + 10 1 libSystem.B.dylib 0x96dea3d8 _pthread_cond_wait + 1089 2 libSystem.B.dylib 0x96e3370f pthread_cond_wait + 48 3 ...ickTimeComponents.component 0x915275b7 jpegdecompress_MPLoop + 79 4 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 5 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 16: 0 libSystem.B.dylib 0x96dbc822 semaphore_wait_signal_trap + 10 1 libSystem.B.dylib 0x96dea3d8 _pthread_cond_wait + 1089 2 libSystem.B.dylib 0x96e3370f pthread_cond_wait + 48 3 com.apple.iTunes 0x00025d27 0x1000 + 150823 4 com.apple.iTunes 0x00025237 0x1000 + 148023 5 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 6 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 17: 0 libSystem.B.dylib 0x96de2092 __workq_kernreturn + 10 1 libSystem.B.dylib 0x96de2628 _pthread_wqthread + 941 2 libSystem.B.dylib 0x96de2246 start_wqthread + 30 Thread 18: 0 libSystem.B.dylib 0x96dbc83a semaphore_timedwait_signal_trap + 10 1 libSystem.B.dylib 0x96dea3c1 _pthread_cond_wait + 1066 2 libSystem.B.dylib 0x96e19208 pthread_cond_timedwait_relative_np + 47 3 com.apple.iTunes 0x0004ca83 0x1000 + 309891 4 com.apple.iTunes 0x0004c7cb 0x1000 + 309195 5 com.apple.iTunes 0x0004c76a 0x1000 + 309098 6 com.apple.iTunes 0x0004c5bb 0x1000 + 308667 7 libSystem.B.dylib 0x96de9f39 _pthread_start + 345 8 libSystem.B.dylib 0x96de9dbe thread_start + 34 Thread 13 crashed with X86 Thread State (32-bit): eax: 0x00000000 ebx: 0x9440df25 ecx: 0xb08b2000 edx: 0x0000003b edi: 0xa0737ab0 esi: 0x19685e20 ebp: 0xb08b1de8 esp: 0xb08b1dd0 ss: 0x0000001f efl: 0x00000282 eip: 0x99293b07 cs: 0x00000017 ds: 0x0000001f es: 0x0000001f fs: 0x0000001f gs: 0x00000037 cr2: 0x00ff9000 Binary Images: 0x1000 - 0xbd9ff8 com.apple.iTunes 9.0.1 (9.0.1) <18B3F1D1-1E3E-6DD1-CB52-F346ACB01921> /Applications/iTunes.app/Contents/MacOS/iTunes 0xdf9000 - 0xe01ff7 com.apple.ipodsynchronization 3.0 (116) <B41B2240-34E9-4A5E-A210-F02D99E3C00E> /System/Library/PrivateFrameworks/iPodSync.framework/Versions/A/iPodSync 0xe09000 - 0xe0eff7 com.apple.iPod 1.6 (17) <4CCD2720-D270-C0D2-1E14-1374779C2401> /System/Library/PrivateFrameworks/iPod.framework/Versions/A/iPod 0xe14000 - 0xe9bfe3 com.apple.iTunes.iPodUpdater 9.0 (9.0) <474ED35C-EDCE-1FEB-AC8C-075B806977A8> /Applications/iTunes.app/Contents/Frameworks/iPodUpdater.framework/Versions/A/iPodUpdater 0xee7000 - 0xf27ff7 com.apple.vmutils 4.2 (106) <834EA6B0-C91B-4CF1-ED3C-229C26459578> /System/Library/PrivateFrameworks/vmutils.framework/Versions/A/vmutils 0x14be000 - 0x14beff7 libmx.A.dylib ??? (???) <01401BF8-3FC7-19CF-ACCE-0F292BFD2F25> /usr/lib/libmx.A.dylib 0x14d0000 - 0x14d0ff7 +net.sourceforge.SafariAdBlockLoader 0.4.0 RC3 (0.4.0 RC3) <8E9A6641-9CE7-5416-DC84-883DB8BAFDDA> /Library/InputManagers/Safari AdBlock/Safari AdBlock Loader.bundle/Contents/MacOS/Safari AdBlock Loader 0x15f8000 - 0x15f9ff7 com.apple.textencoding.unicode 2.3 (2.3) <78A61FD5-70EE-19EA-48D4-3481C640B70D> /System/Library/TextEncodings/Unicode Encodings.bundle/Contents/MacOS/Unicode Encodings 0x1778000 - 0x179efff libssl.0.9.7.dylib ??? (???) <8BF98B2F-0F55-40CA-C082-43C76707BD24> /usr/lib/libssl.0.9.7.dylib 0x17e6000 - 0x17eaff3 com.apple.audio.AudioIPCPlugIn 1.1.0 (1.1.0) <39CD9296-183C-5603-94A4-0A0EC327BA69> /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn 0x17ef000 - 0x17f4ffb com.apple.audio.AppleHDAHALPlugIn 1.7.4 (1.7.4a1) <B4217DD8-4BDE-CC1C-70FF-06EA901F376D> /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn 0x12800000 - 0x138eaff7 com.apple.CoreFP 1.5.18 (1.5) <740FE25C-0539-AEFF-2108-C2C0D338CDCE> /System/Library/PrivateFrameworks/CoreFP.framework/CoreFP 0x1390f000 - 0x139c4fe7 libcrypto.0.9.7.dylib ??? (???) <4917E4F2-817F-5AC4-3FBE-54BC96360448> /usr/lib/libcrypto.0.9.7.dylib 0x13a0a000 - 0x13a50ff3 com.apple.mobiledevice 251.6 (251.6) <E998830A-CFBF-3060-4770-1089AED68444> /System/Library/PrivateFrameworks/MobileDevice.framework/MobileDevice 0x167f5000 - 0x167f7ff7 com.apple.PDFImporter 2.1 (???) <C78368B0-3712-067C-9467-55932890C979> /System/Library/Components/PDFImporter.component/Contents/MacOS/PDFImporter 0x16900000 - 0x16905ff7 com.apple.QuartzComposer.iTunesPlugIn 1.2 (16) <8511A037-AFDE-5D1A-67DA-1B4837432D85> /Library/iTunes/iTunes Plug-ins/Quartz Composer Visualizer.bundle/Contents/MacOS/Quartz Composer Visualizer 0x17fa8000 - 0x181cbfe7 com.apple.audio.codecs.Components 2.0 (2.0) <064E9181-38CC-C2D3-070D-4D162D2903E8> /System/Library/Components/AudioCodecs.component/Contents/MacOS/AudioCodecs 0x18764000 - 0x1877efc3 com.apple.AppleIntermediateCodec 1.2 (145) /Library/QuickTime/AppleIntermediateCodec.component/Contents/MacOS/AppleIntermediateCodec 0x18783000 - 0x18788ff7 com.apple.AppleMPEG2Codec 1.0.1 (220) <6FDFF3C8-7ECE-CB74-1374-9C0230C54F78> /Library/QuickTime/AppleMPEG2Codec.component/Contents/MacOS/AppleMPEG2Codec 0x19137000 - 0x1918cfef com.apple.AppleProResDecoder 2.0 (223) <793BA98A-2E7D-1C39-998D-805B60034DF4> /System/Library/QuickTime/AppleProResDecoder.component/Contents/MacOS/AppleProResDecoder 0x191c4000 - 0x191ddfe7 com.apple.applepixletvideo 1.2.19 (1.2d19) <4A68731C-8071-6CF5-012C-40F00CD1333A> /System/Library/QuickTime/ApplePixletVideo.component/Contents/MacOS/ApplePixletVideo 0x19400000 - 0x19479fef com.apple.AppleVAH264HW.component 2.0 (1.0) <FFC0DED4-1AA1-267E-CE43-0261727DA31D> /System/Library/QuickTime/AppleVAH264HW.component/Contents/MacOS/AppleVAH264HW 0x1953b000 - 0x19577fe3 com.apple.QuickTimeFireWireDV.component 7.6.3 (1584) <8E3D38A3-1005-305C-7B70-D400AB4AC0F3> /System/Library/QuickTime/QuickTimeFireWireDV.component/Contents/MacOS/QuickTimeFireWireDV 0x1a000000 - 0x1a312fe0 +org.perian.Perian 1.1.4 (1.1.4) <577A3B05-0FF7-FC3D-3223-88718A00D84C> /Library/QuickTime/Perian.component/Contents/MacOS/Perian 0x70000000 - 0x700cbfe7 com.apple.audio.units.Components 1.6 (1.6) <A568FC6D-1D2D-A04B-FD1A-AFF6E326E020> /System/Library/Components/CoreAudio.component/Contents/MacOS/CoreAudio 0x8fe00000 - 0x8fe4162b dyld 132.1 (???) <211AF0DD-42D9-79C8-BB6A-1F4BEEF4B4AB> /usr/lib/dyld 0x900cb000 - 0x900ccff7 com.apple.audio.units.AudioUnit 1.6 (1.6) <68180B96-381C-A09D-5576-606A134FD953> /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit 0x900cd000 - 0x908b2fe7 com.apple.WebCore 6531 (6531.9) <F9A9848B-9EB0-B912-49F5-7E8010AF2CF1> /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.framework/Versions/A/WebCore 0x908b3000 - 0x908effff com.apple.CoreMediaIOServices 101.0 (715) <FD86FB28-9BA1-0993-1172-F10F61EA6344> /System/Library/PrivateFrameworks/CoreMediaIOServices.framework/Versions/A/CoreMediaIOServices 0x9095f000 - 0x90970ff7 com.apple.LangAnalysis 1.6.5 (1.6.5) <E77440D0-76EE-EB4C-3D00-9EDE417F13CF> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis 0x909ba000 - 0x90bb7feb com.apple.AddressBook.framework 5.0 (862) <BD05B213-46CF-8EFD-B801-CF741408600D> /System/Library/Frameworks/AddressBook.framework/Versions/A/AddressBook 0x90bd9000 - 0x90c03ff7 com.apple.shortcut 1.1 (1.1) <B0514FA9-7CAE-AD94-93CA-7B2A2C5F7B8A> /System/Library/PrivateFrameworks/Shortcut.framework/Versions/A/Shortcut 0x90c04000 - 0x90c23fe7 com.apple.opencl 11 (11) <372A42E7-FB10-B74D-E1A0-980E94D07021> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL 0x90c24000 - 0x90c24ff7 com.apple.Accelerate 1.5 (Accelerate 1.5) <F642E7A0-3720-FA19-0190-E6DBD9EF2D9B> /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate 0x90c25000 - 0x90c25ff7 com.apple.ApplicationServices 38 (38) <8012B504-3D83-BFBB-DA65-065E061CFE03> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices 0x90d7c000 - 0x90db6fe7 libFontRegistry.dylib ??? (???) <EE633CF6-8827-EF05-10A4-5F2937120227> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontRegistry.dylib 0x90db7000 - 0x91d45ff7 com.apple.QuickTimeComponents.component 7.6.3 (1584) /System/Library/QuickTime/QuickTimeComponents.component/Contents/MacOS/QuickTimeComponents 0x91d46000 - 0x91d7cfff libtidy.A.dylib ??? (???) <DDFAB560-3883-A6A2-7BDD-D91730982B48> /usr/lib/libtidy.A.dylib 0x91d8d000 - 0x91d92ff7 com.apple.OpenDirectory 10.6 (10.6) <92582807-E8F3-3DD9-EB42-4195CFB754A1> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory 0x91d93000 - 0x91d9aff7 com.apple.agl 3.0.12 (AGL-3.0.12) <6BF89127-C18C-27A9-F94A-981836A822FE> /System/Library/Frameworks/AGL.framework/Versions/A/AGL 0x91d9b000 - 0x91ddbff3 com.apple.securityinterface 4.0 (36981) <F024C5CA-0762-1599-5BAB-17F785E51075> /System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInterface 0x91e0d000 - 0x91e5dfe7 libGLU.dylib ??? (???) <55A69DCE-1237-341E-F239-CDFE1F5B19BB> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib 0x91e5e000 - 0x91ee0ffb SecurityFoundation ??? (???) <29C27E0E-B2B3-BF6B-B1F8-5783B8B01535> /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation 0x91f28000 - 0x9235dff7 libLAPACK.dylib ??? (???) <5E2D2283-57DE-9A49-1DB0-CD027FEFA6C2> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib 0x9236b000 - 0x9237ffe7 libbsm.0.dylib ??? (???) <14CB053A-7C47-96DA-E415-0906BA1B78C9> /usr/lib/libbsm.0.dylib 0x923bb000 - 0x924e4fe7 com.apple.audio.toolbox.AudioToolbox 1.6 (1.6) <62BEEBE6-68FC-4A48-91CF-39DA2BD793F1> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox 0x924fe000 - 0x925b0ffb libFontParser.dylib ??? (???) <EB089832-660F-0B34-3AC8-CCDA937987D9> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontParser.dylib 0x9264d000 - 0x9264fff7 libRadiance.dylib ??? (???) <0E03CF64-0931-7B9A-F617-4387B809D6D8> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib 0x92650000 - 0x92696ff7 libauto.dylib ??? (???) <FAB17F30-A28B-E33D-6E21-C7119C9C83ED> /usr/lib/libauto.dylib 0x92697000 - 0x928c2ff3 com.apple.QuartzComposer 4.0 (156.6) <D1D3A5A8-75BC-4556-85FA-8A9F487106DD> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuartzComposer.framework/Versions/A/QuartzComposer 0x928c3000 - 0x92913ff7 com.apple.framework.familycontrols 2.0 (2.0) <50617342-E578-4C1C-938A-19A37ECA91CA> /System/Library/PrivateFrameworks/FamilyControls.framework/Versions/A/FamilyControls 0x92914000 - 0x92c0dfef com.apple.QuickTime 7.6.3 (1584) <687233E1-F428-5224-08D5-5874BEA2300D> /System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime 0x92c22000 - 0x92d62ff7 com.apple.syncservices 5.0 (575) <61B36E07-6D14-97DC-122F-41EDE1F6DB03> /System/Library/Frameworks/SyncServices.framework/Versions/A/SyncServices 0x92d6e000 - 0x92d9fff3 libTrueTypeScaler.dylib ??? (???) <F326E053-7425-2F10-F883-CBD56A1E1B72> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libTrueTypeScaler.dylib 0x92da0000 - 0x92dc0fe7 libresolv.9.dylib ??? (???) <A48921CB-3FA7-3071-AF9C-2D86FB493A3A> /usr/lib/libresolv.9.dylib 0x92dca000 - 0x92ed7ff7 com.apple.MediaToolbox 0.420.17 (420.17) <EE843140-C79F-3D8C-B89E-893CD74C3633> /System/Library/PrivateFrameworks/MediaToolbox.framework/Versions/A/MediaToolbox 0x92f4a000 - 0x92ff9fe3 com.apple.QuickTimeImporters.component 7.6.3 (1584) <34BF4FBA-BFCD-9A47-4BA9-E2B155C5C881> /System/Library/QuickTime/QuickTimeImporters.component/Contents/MacOS/QuickTimeImporters 0x92ffa000 - 0x930a9fef com.apple.ColorSync 4.6.0 (4.6.0) <66ABAE86-B0EC-D641-913D-08ACA965F9FA> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync 0x930aa000 - 0x931a0ff7 libGLProgrammability.dylib ??? (???) <B8E40851-3A01-7D01-2F96-537BF7FA63B5> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgrammability.dylib 0x931a8000 - 0x93200fe7 com.apple.datadetectorscore 2.0 (80.7) <A40AA74A-9D13-2A6C-5440-B50905923251> /System/Library/PrivateFrameworks/DataDetectorsCore.framework/Versions/A/DataDetectorsCore 0x93201000 - 0x93228ff7 com.apple.quartzfilters 1.6.0 (1.6.0) <879A3B93-87A6-88FE-305D-DF1EAED04756> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuartzFilters.framework/Versions/A/QuartzFilters 0x93229000 - 0x9327aff7 com.apple.HIServices 1.8.0 (???) <B8EC13DB-A81A-91BF-8C82-66E840C64C91> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices 0x9327b000 - 0x932b6fe7 com.apple.DebugSymbols 1.1 (70) <05013716-CFCF-801E-5535-D0643869BDCD> /System/Library/PrivateFrameworks/DebugSymbols.framework/Versions/A/DebugSymbols 0x932b7000 - 0x93304feb com.apple.DirectoryService.PasswordServerFramework 6.0 (6.0) <BF66BA5D-BBC8-78A5-DBE2-F9DE3DD1D775> /System/Library/PrivateFrameworks/PasswordServer.framework/Versions/A/PasswordServer 0x93305000 - 0x93319ffb com.apple.speech.synthesis.framework 3.10.35 (3.10.35) <57DD5458-4F24-DA7D-0927-C3321A65D743> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis 0x9331a000 - 0x9335eff3 com.apple.coreui 0.2 (112) <A810DFFD-6314-5E2B-93A4-D5626634B1EE> /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI 0x9335f000 - 0x93418fe7 libsqlite3.dylib ??? (???) <16CEF8E8-8C9A-94CD-EF5D-05477844C005> /usr/lib/libsqlite3.dylib 0x93419000 - 0x93473ff7 com.apple.framework.IOKit 2.0 (???) <7618DDEC-2E3B-9C6E-FDC9-15169E24B4FB> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit 0x93474000 - 0x934edff3 com.apple.audio.CoreAudio 3.2.0 (3.2) <91AE891E-6015-AABE-3512-2D5EBCA0937B> /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio 0x934ee000 - 0x935effe7 libxml2.2.dylib ??? (???) <C242A74D-280A-90C3-3F79-891624AA45D2> /usr/lib/libxml2.2.dylib 0x935f0000 - 0x93634fe7 com.apple.Metadata 10.6.0 (507.1) <CBD1B22B-5F10-C784-03A2-35106B97DF3F> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata 0x93635000 - 0x93637ff7 com.apple.QuickTimeH264.component 7.6.3 (1584) /System/Library/QuickTime/QuickTimeH264.component/Contents/MacOS/QuickTimeH264 0x93639000 - 0x93654ff7 libPng.dylib ??? (???) <38DD4AA1-0643-85A0-F2F5-EE9269729975> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib 0x93655000 - 0x936affe7 com.apple.CorePDF 1.0 (1.0) <590244C9-15D7-7A65-13AF-6F597123746B> /System/Library/PrivateFrameworks/CorePDF.framework/Versions/A/CorePDF 0x936b0000 - 0x936e8ff7 com.apple.LDAPFramework 2.0 (120.1) <8C7F3F42-6A4D-D37A-4232-685D44E8769E> /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP 0x93723000 - 0x93757ff7 libcups.2.dylib ??? (???) <9078BA07-DEE1-6597-D15D-7BE3A20CB5A0> /usr/lib/libcups.2.dylib 0x93758000 - 0x93758ff7 liblangid.dylib ??? (???) <B99607FC-5646-32C8-2C16-AFB5EA9097C2> /usr/lib/liblangid.dylib 0x93759000 - 0x9375cffb com.apple.help 1.3.1 (41) <67F1F424-3983-7A2A-EC21-867BE838E90B> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help 0x9375d000 - 0x937d4feb com.apple.backup.framework 1.1 (1.0) <73C642BD-

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• StackOverFlowError while creating Mac object on AS400/Java

  - by Prasanna K Rao

  Hello all, I am a newbie to AS400-Java programming. I am trying to create my first program to test the implementation of Message Authentication Code (MAC). I am trying to use the HMACSHA1 hash function. My (Java 1.4) program runs fine on a dev box (V5R4).But fails terribly on the QA box (V5R3). My program is as below: ===================================================== import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.security.Security; import java.security.Provider; import javax.crypto.Mac; import javax.crypto.spec.SecretKeySpec; import javax.crypto.SecretKey; public class Test01 { private static final String HMAC_SHA1_ALGORITHM = "HmacSHA1"; public static void main (String [] arguments) { byte[] key = { 1,2,3,4,5,6,7,8}; SecretKeySpec SHA1key = new SecretKeySpec(key, "HmacSHA1"); Mac hmac; String strFinalRslt = ""; try { hmac = Mac.getInstance("HmacSHA1"); hmac.init(SHA1key); byte[] result = hmac.doFinal(); strFinalRslt = toHexString(result); }catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); }catch (InvalidKeyException e) { // TODO Auto-generated catch block e.printStackTrace(); }catch(StackOverflowError e){ e.printStackTrace(); } System.out.println(strFinalRslt); System.out.println("All done!!!"); } public static byte[] fromHexString ( String s ) { int stringLength = s.length(); if ( (stringLength & 0x1) != 0 ) { throw new IllegalArgumentException ( "fromHexString requires an even number of hex characters" ); } byte[] b = new byte[stringLength / 2]; for ( int i=0,j=0; i 4] ); //look up low nibble char sb.append( hexChar [b[i] & 0x0f] ); } return sb.toString(); } static char[] hexChar = { '0' , '1' , '2' , '3' , '4' , '5' , '6' , '7' , '8' , '9' , 'a' , 'b' , 'c' , 'd' , 'e' , 'f'}; } This program compiles fine and gets the correct response on my win-xp client and also my dev box. But, fails with the following error on the QA box: java.lang.StackOverflowError at java.lang.Throwable.(Throwable.java:180) at java.lang.Error.(Error.java:37) at java.lang.StackOverflowError.(StackOverflowError.java:24) at java.io.Os400FileSystem.list(Native method) at java.io.File.list(File.java:922) at javax.crypto.b.e(Unknown source) at javax.crypto.b.a(Unknown source) at javax.crypto.b.c(Unknown source) at javax.crypto.b£0.run(Unknown source) at javax.crypto.b.(Unknown source) at javax.crypto.Mac.getInstance(Unknown source) I have verified the java.security file and entry corresponding to the jce files are all ok. The DMPJVM command gives me the following response: Thu Jun 03 12:25:34 E Java Virtual Machine Information 016822/QPGMR/11111 ........................................................................ . Classpath . ........................................................................ java.version=1.4 sun.boot.class.path=/QIBM/ProdData/OS400/Java400/jdk/lib/jdkptf14.zip:/QIBM /ProdData/OS400/Java400/ext/ibmjssefw.jar:/QIBM/ProdData/CAP/ibmjsseprovide r.jar:/QIBM/ProdData/OS400/Java400/ext/ibmjsseprovider2.jar:/QIBM/ProdData/ OS400/Java400/ext/ibmpkcs11impl.jar:/QIBM/ProdData/CAP/ibmjssefips.jar:/QIB M/ProdData/OS400/Java400/jdk/lib/IBMiSeriesJSSE.jar:/QIBM/ProdData/OS400/Ja va400/jdk/lib/jce.jar:/QIBM/ProdData/OS400/Java400/jdk/lib/jaas.jar:/QIBM/P rodData/OS400/Java400/jdk/lib/ibmcertpathfw.jar:/QIBM/ProdData/OS400/Java40 0/jdk/lib/ibmcertpathprovider.jar:/QIBM/ProdData/OS400/Java400/ext/ibmpkcs. jar:/QIBM/ProdData/OS400/Java400/jdk/lib/ibmjgssfw.jar:/QIBM/ProdData/OS400 /Java400/jdk/lib/ibmjgssprovider.jar:/QIBM/ProdData/OS400/Java400/jdk/lib/s ecurity.jar:/QIBM/ProdData/OS400/Java400/jdk/lib/charsets.jar:/QIBM/ProdDat a/OS400/Java400/jdk/lib/resources.jar:/QIBM/ProdData/OS400/Java400/jdk/lib/ rt.jar:/QIBM/ProdData/OS400/Java400/jdk/lib/sunrsasign.jar:/QIBM/ProdData/O S400/Java400/ext/IBMmisc.jar:/QIBM/ProdData/Java400/ java.class.path=/myhome/lib/commons-codec-1.3.jar:/myhome/lib/commons-httpc lient-3.1.jar:/myhome/lib/commons-logging-1.1.jar:/myhome/lib/log4j-1.2.15.jar:/myhome/lib/log4j-core.jar ; java.ext.dirs=/QIBM/ProdData/OS400/Java400/jdk/lib/ext:/QIBM/UserData/Java4 00/ext:/QIBM/ProdData/Java400/jdk14/lib/ext java.library.path=/QSYS.LIB/ROBOTLIB.LIB:/QSYS.LIB/QTEMP.LIB:/QSYS.LIB/ODIP GM.LIB:/QSYS.LIB/QGPL.LIB ........................................................................ . Garbage Collection . ........................................................................ Garbage collector parameters Initial size: 16384 K Max size: 240000000 K Current values Heap size: 437952 K Garbage collections: 58 Additional values JIT heap size: 53824 K JVM heap size: 55752 K Last GC cycle time: 1333 ms ........................................................................ . Thread information . ........................................................................ Information for 4 thread(s) of 4 thread(s) processed Thread: 00000004 Thread-0 TDE: B00380000BAA0000 Thread priority: 5 Thread status: Running Thread group: main Runnable: java/lang/Thread Stack: java/io/Os400FileSystem.list(Ljava/io/File;)[Ljava/lang/String;+0 (Os400FileSystem.java:0) java/io/File.list()[Ljava/lang/String;+19 (File.java:922) javax/crypto/b.e()[B+127 (:0) javax/crypto/b.a(Ljava/security/cert/X509Certificate;)V+7 (:0) javax/crypto/b.access$500(Ljava/security/cert/X509Certificate;)V+1 (:0) javax/crypto/b$0.run()Ljava/lang/Object;+98 (:0) javax/crypto/b.()V+507 (:0) javax/crypto/Mac.getInstance(Ljava/lang/String;)Ljavax/crypto/Mac;+10 (:0) Locks: None Thread: 00000007 jitcompilethread TDE: B00380000BD58000 Thread priority: 5 Thread status: Java wait Thread group: system Runnable: java/lang/Thread Stack: None Locks: None Thread: 00000005 Reference Handler TDE: B00380000BAAC000 Thread priority: 10 Thread status: Waiting Wait object: java/lang/ref/Reference$Lock Thread group: system Runnable: java/lang/ref/Reference$ReferenceHandler Stack: java/lang/Object.wait()V+1 (Object.java:452) java/lang/ref/Reference$ReferenceHandler.run()V+47 (Reference.java:169) Locks: None Thread: 00000006 Finalizer TDE: B00380000BAB3000 Thread priority: 8 Thread status: Waiting Wait object: java/lang/ref/ReferenceQueue$Lock Thread group: system Runnable: java/lang/ref/Finalizer$FinalizerThread Stack: java/lang/ref/ReferenceQueue.remove(J)Ljava/lang/ref/Reference;+43 (ReferenceQueue.java:111) java/lang/ref/ReferenceQueue.remove()Ljava/lang/ref/Reference;+1 (ReferenceQueue.java:127) java/lang/ref/Finalizer$FinalizerThread.run()V+3 (Finalizer.java:171) Locks: None ........................................................................ . Class loader information . ........................................................................ 0 Default class loader 1 sun/reflect/DelegatingClassLoader 2 sun/misc/Launcher$ExtClassLoader ........................................................................ . GC heap information . ........................................................................ Loader Objects Class name ------ ------- ---------- 0 1493 [C 0 2122181 java/lang/String 0 47 [Ljava/util/Hashtable$Entry; 0 68 [Ljava/lang/Object; 0 1016 java/lang/Class 0 31 java/util/HashMap 0 37 java/util/Hashtable 0 2 java/lang/ThreadGroup 0 2 java/lang/RuntimePermission 0 2 java/lang/ref/ReferenceQueue$Null 0 5 java/lang/ref/ReferenceQueue 0 50 java/util/Vector 0 4 java/util/Stack 0 3 sun/misc/SoftCache 0 1 [Ljava/lang/ThreadGroup; 0 5 [Ljava/io/ObjectStreamField; 0 1 sun/reflect/ReflectionFactory 0 7 java/lang/ref/ReferenceQueue$Lock 0 10 java/lang/Object 0 1 java/lang/String$CaseInsensitiveComparator 0 1 java/util/Hashtable$EmptyEnumerator 0 1 java/util/Hashtable$EmptyIterator 0 33 [Ljava/util/HashMap$Entry; 0 19210 [J 0 1 sun/nio/cs/StandardCharsets 0 5 java/util/TreeMap 0 1075 java/util/TreeMap$Entry 0 469 [Ljava/lang/String; 0 1 java/lang/StringBuffer 0 2 java/io/FileInputStream 0 2 java/io/FileOutputStream 0 2 java/io/BufferedOutputStream 0 1 java/lang/reflect/ReflectPermission 0 1 [[Ljava/lang/ref/SoftReference; 0 2 [Ljava/lang/ref/SoftReference; 0 2 sun/nio/cs/Surrogate$Parser 0 3 sun/misc/Signal 0 1 [Ljava/io/File; 0 6 java/io/File 0 1 java/util/BitSet 0 17 sun/reflect/NativeConstructorAccessorImpl 0 2 java/net/URLClassLoader$ClassFinder 0 12 java/util/ArrayList 0 32 java/io/RandomAccessFile 0 16 java/lang/Thread 0 1 java/lang/ref/Reference$ReferenceHandler 0 1 java/lang/ref/Finalizer$FinalizerThread 0 266 [B 0 2 java/util/Properties 0 71 java/lang/ref/Finalizer 0 2 com/ibm/nio/cs/DirectEncoder 0 38 java/lang/reflect/Constructor 0 33 java/util/jar/JarFile 0 19200 java/lang/StackOverflowError 0 5 java/security/AccessControlContext 0 2 [Ljava/lang/Thread; 0 4 java/lang/OutOfMemoryError 0 1065 java/util/Hashtable$Entry 0 1 java/io/BufferedInputStream 0 2 java/io/PrintStream 0 2 java/io/OutputStreamWriter 0 428 [I 0 3 java/lang/ClassLoader$NativeLibrary 0 25 java/util/Locale 0 3 sun/misc/URLClassPath 0 30 java/util/zip/Inflater 0 612 java/util/HashMap$Entry 0 2 java/io/FilePermission 0 10 java/io/ObjectStreamField 0 1 java/security/BasicPermissionCollection 0 2 java/security/ProtectionDomain 0 1 java/lang/Integer$1 0 1 java/lang/ref/Reference$Lock 0 1 java/lang/Shutdown$Lock 0 1 java/lang/Runtime 0 36 java/io/FileDescriptor 0 1 java/lang/Long$1 0 202 java/lang/Long 0 3 java/lang/ThreadLocal 0 3 java/nio/charset/CodingErrorAction 0 2 java/nio/charset/CoderResult 0 1 java/nio/charset/CoderResult$1 0 1 java/nio/charset/CoderResult$2 0 1 sun/misc/Unsafe 0 2 java/nio/ByteOrder 0 1 java/io/Os400FileSystem 0 3 java/lang/Boolean 0 1 java/lang/Terminator$1 0 23 java/lang/Integer 0 2 sun/misc/NativeSignalHandler 0 1 sun/misc/Launcher$Factory 0 1 sun/misc/Launcher 0 53 [Ljava/lang/Class; 0 1 java/lang/reflect/ReflectAccess 0 18 sun/reflect/DelegatingConstructorAccessorImpl 0 1 sun/net/www/protocol/file/Handler 0 3 java/util/HashSet 0 3 sun/net/www/protocol/jar/Handler 0 1 java/util/jar/JavaUtilJarAccessImpl 0 1 java/net/UnknownContentHandler 0 2 [Ljava/security/Principal; 0 10 [Ljava/security/cert/Certificate; 0 2 sun/misc/AtomicLongCSImpl 0 3 sun/reflect/DelegatingMethodAccessorImpl 0 1 sun/security/util/ByteArrayLexOrder 0 1 sun/security/util/ByteArrayTagOrder 0 7 sun/security/x509/CertificateVersion 0 7 sun/security/x509/CertificateSerialNumber 0 7 sun/security/x509/SerialNumber 0 7 sun/security/x509/CertificateAlgorithmId 0 7 sun/security/x509/CertificateIssuerName 0 60 sun/security/x509/RDN 0 60 [Lsun/security/x509/AVA; 0 67 sun/security/util/DerInputStream 0 3 [Ljava/math/BigInteger; 0 2 com/ibm/nio/cs/Converter 0 2 sun/nio/cs/StreamEncoder$CharsetSE 0 35 java/lang/ref/SoftReference 0 2 java/nio/HeapByteBuffer 0 2 java/io/BufferedWriter 0 33 sun/misc/URLClassPath$JarLoader 0 4 java/lang/ThreadLocal$ThreadLocalMap$Entry 0 76 java/net/URL 0 1 sun/misc/Launcher$ExtClassLoader 0 1 sun/misc/Launcher$AppClassLoader 0 4 java/lang/Throwable 0 7 java/lang/reflect/Method 0 2 sun/misc/URLClassPath$FileLoader 0 2 java/security/CodeSource 0 2 java/security/Permissions 0 2 java/io/FilePermissionCollection 0 1 java/lang/ThreadLocal$ThreadLocalMap 0 1 javax/crypto/spec/SecretKeySpec 0 17 java/util/jar/Attributes$Name 0 1 [Ljava/lang/ThreadLocal$ThreadLocalMap$Entry; 0 1 java/security/SecureRandom 0 2 sun/security/provider/Sun 0 1 java/util/jar/JarFile$JarFileEntry 0 1 java/util/jar/JarVerifier 0 3 sun/reflect/NativeMethodAccessorImpl 0 116 sun/security/util/ObjectIdentifier 0 1 java/lang/Package 0 2 [S 0 104 java/math/BigInteger 0 20 sun/security/x509/AlgorithmId 0 14 sun/security/x509/X500Name 0 14 [Lsun/security/x509/RDN; 0 60 sun/security/x509/AVA 0 67 sun/security/util/DerValue 0 67 sun/security/util/DerInputBuffer 0 21 sun/security/x509/AVAKeyword 0 6 sun/security/x509/X509CertImpl 0 7 sun/security/x509/X509CertInfo 0 1 [Lsun/security/util/ObjectIdentifier; 0 1 [[Ljava/lang/Byte; 0 3 [[B 0 7 sun/security/provider/DSAPublicKey 0 7 sun/security/x509/AuthorityKeyIdentifierExtension 0 12 [Ljava/lang/Byte; 0 14 java/lang/Byte 0 7 sun/security/x509/CertificateSubjectName 0 7 sun/security/x509/CertificateX509Key 0 14 sun/security/x509/KeyIdentifier 0 4 [Z 0 5 sun/text/Normalizer$Mode 0 7 sun/security/x509/CertificateValidity 0 14 java/util/Date 0 7 sun/security/provider/DSAParameters 0 7 sun/security/util/BitArray 0 7 sun/security/x509/CertificateExtensions 0 7 java/security/AlgorithmParameters 0 7 sun/security/x509/SubjectKeyIdentifierExtension 0 5 sun/security/x509/BasicConstraintsExtension 0 2 sun/security/x509/KeyUsageExtension 0 1 sun/text/CompactCharArray 0 1 sun/text/CompactByteArray 0 1 sun/net/www/protocol/jar/JarFileFactory 0 1 java/util/Collections$EmptySet 0 1 java/util/Collections$EmptyList 0 1 java/util/Collections$ReverseComparator 0 1 com/ibm/security/jgss/i18n/PropertyResource 0 1 javax/crypto/b$0 0 1 sun/security/provider/X509Factory 0 1 sun/reflect/BootstrapConstructorAccessorImpl 1 1 sun/reflect/GeneratedConstructorAccessor3202134454 2 1 com/ibm/crypto/provider/IBMJCE 0 6 java/util/ResourceBundle$LoaderReference 0 1 [Lsun/security/x509/NetscapeCertTypeExtension$MapEntry; 0 1 com/sun/rsajca/Provider 0 1 com/ibm/security/cert/IBMCertPath 0 1 com/ibm/as400/ibmonly/net/ssl/Provider 0 1 com/ibm/jsse/IBMJSSEProvider 0 1 com/ibm/security/jgss/IBMJGSSProvider 0 5 org/ietf/jgss/Oid 0 1 java/util/PropertyResourceBundle 0 7 java/util/ResourceBundle$ResourceCacheKey 0 2 sun/net/www/protocol/jar/URLJarFile 0 6 sun/misc/SoftCache$ValueCell 0 1 java/util/Random 0 1 java/util/Collections$EmptyMap 0 112 com/ibm/security/util/ObjectIdentifier 0 5 java/security/Security$ProviderProperty 0 1 java/security/cert/CertificateFactory 0 1 sun/security/provider/SecureRandom 0 2 java/security/MessageDigest$Delegate 0 2 sun/security/provider/SHA 0 1 sun/util/calendar/ZoneInfo 0 4 com/ibm/security/x509/X500Name 0 2 [Ljava/security/cert/X509Certificate; 0 1 sun/reflect/DelegatingClassLoader 0 1 sun/security/x509/NetscapeCertTypeExtension 0 7 sun/security/x509/NetscapeCertTypeExtension$MapEntry 0 3 [[Ljava/lang/String; 0 3 java/util/Arrays$ArrayList 0 7 com/ibm/security/x509/NetscapeCertTypeExtension$MapEntry 0 1 com/ibm/security/validator/EndEntityChecker 0 1 java/util/AbstractList$Itr 0 1 com/ibm/security/util/ByteArrayLexOrder 0 1 com/ibm/security/util/ByteArrayTagOrder 0 18 [Lcom/ibm/security/x509/AVA; 0 18 com/ibm/security/util/DerInputStream 0 5 com/ibm/security/util/text/Normalizer$Mode 0 1 com/ibm/security/validator/SimpleValidator 0 1 [Lcom/ibm/security/x509/NetscapeCertTypeExtension$MapEntry; 0 4 [Lcom/ibm/security/x509/RDN; 0 1 java/util/Hashtable$Enumerator 0 4 java/util/LinkedHashMap$Entry 0 1 sun/text/resources/LocaleElements 0 1 sun/text/resources/LocaleElements_en 0 22 com/ibm/security/x509/AVAKeyword 0 4 javax/security/auth/x500/X500Principal 0 18 com/ibm/security/x509/RDN 0 18 com/ibm/security/x509/AVA 0 18 com/ibm/security/util/DerInputBuffer 0 18 com/ibm/security/util/DerValue 0 1 com/ibm/security/util/text/CompactCharArray 0 1 com/ibm/security/util/text/CompactByteArray 0 2 java/util/LinkedHashMap 0 1 java/net/InetAddress$1 0 2 [Ljava/net/InetAddress; 0 2 java/net/InetAddress$Cache 0 1 java/net/Inet4AddressImpl 0 3 java/net/Inet4Address 0 2 java/net/InetAddress$CacheEntry ........................................................................ . Global registry information . ........................................................................ Loader Objects Class name ------ ------- ---------- 0 23 [C 0 1017 java/lang/Class 0 1 java/lang/ref/Reference$ReferenceHandler 0 1 java/lang/ref/Finalizer$FinalizerThread 0 1 sun/misc/Launcher$AppClassLoader 0 32 java/io/RandomAccessFile 0 32 [B Can someone please advise me? Thanks a lot, Prasanna

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