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  • Performance Overhead of Perf Event Subsystem in Linux Kernel

    - by Bo Xiao
    Performance counters for Linux are a new kernel-based subsystem that provide a framework for all things performance analysis. It covers hardware level (CPU/PMU, Performance Monitoring Unit) features and software features (software counters, tracepoints) as well. Since 2.6.33, the kernel provide 'perf_event_create_kernel_counter' kernel api for developers to create kernel counter to collect system runtime information. What I concern most is the performance impact on overall system when tracepoint/ftrace is enabled. There are no docs I can find about them. I was once told that ftrace was implemented by dynamically patching code, will it slow the system dramatically?

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  • Statistics Question: Kernel Smoothing in R

    - by James Thompson
    I have data of this form: x y 1 0.19 2 0.26 3 0.40 4 0.58 5 0.59 6 1.24 7 0.68 8 0.60 9 1.12 10 0.80 11 1.20 12 1.17 13 0.39 I'm currently plotting a kernel-smoothed density estimate of the x versus y using this code: smoothed = ksmooth( d$resi, d$score, bandwidth = 6 ) plot( smoothed ) I simply want a plot of the x versus smoothed(y) values, which is ## Heading ## However, the documentation for ksmooth suggests that this isn't the best kernel-smoothing package available: This function is implemented purely for compatibility with S, although it is nowhere near as slow as the S function. Better kernel smoothers are available in other packages. What other kernel smoothers are better can these smoothers be found?

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  • Hiding an item conditionally through SPEL in OAF ( VO Extension + Personalization )

    - by Manoj Madhusoodanan
    In this blog I will explain how to conditionally set property of an item through personalization.Let me discuss using a business scenario. My customer wants to make Hold from Payment/ All Invoices column readonly when the Operating Unit is UK ( Configured in a lookup XXCUST_EXCLUDED_ORGS ). Analysis First thing is we have to find out the page and business components. Page: /oracle/apps/pos/supplier/webui/QuickUpdatePGView Object: oracle.apps.pos.supplier.server.SitesVO Solution Download oracle.apps.pos.supplier.server.SitesVO from $JAVA_TOP to JDEV_USER_HOME/myprojects.Make sure the transfer mode of the file (See below table). Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* 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-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} File Type Transfer Mode .xml ASCII .class Binary .tar Binary .java ASCII  Since there is no VO attribute available to determine the Site Org against the lookup Org we have to add the logic inside a custom VO attribute. So VO extension is required in this scenario. Add an attribute "isPymtReadOnlyStr" in the existing query.This column returns 'Y' if there is a match in the lookup otherwise 'N'. Create a transient attribute "isPymtReadOnly" of type BOOLEAN.This will return TRUE if "isPymtReadOnlyStr" is "Y" otherwise FALSE. The reason behind adding the "isPymtReadOnly" is we are setting the item property as readonly through SPEL.It will recognize only BOOLEAN.But SQL query doesn't support BOOLEAN.So we are building a BOOLEAN attribute from the SQL which will use in the personalization layer to set the item property. Steps 1) Create a new VO xxcust.oracle.apps.pos.supplier.server.XXCUSTSitesVO which extends from oracle.apps.pos.supplier.server.SitesVO. Make sure the binding style should be same as SitesVO. Create the XXCUSTSitesVO which same query of SitesVO.Later we will add the new attribute to XXCUSTSitesVO. At this point of time all the existing VO attributes are of Updatable property as "Always". Press Finish without creating XXCUSTSitesVORowImpl.java 2) Select the XXCUSTSitesVO from JDeveloper Application Navigator. Modify the query and add the extra column. 3) Create a new transient attribute as follows. 4) Once you modify the query all the existing attributes Updatable property will change to Never.So revert that property back to orginal. 5) Create XXCUSTSitesVORowImpl.java by checking the following check box. 6) Add the following code snippet in XXCUSTSitesVORowImpl.java 7) Create the substitution for SitesVO as follows. Following entry will get created in current jpx file.    <Substitutes>      <Substitute OldName ="oracle.apps.pos.supplier.server.SitesVO" NewName ="xxcust.oracle.apps.pos.supplier.server.XXCUSTSitesVO" />   </Substitutes> 8) Migrate XXCUSTSitesVOImpl.java,XXCUSTSitesVORowImpl.java and XXCUSTSitesVO.xml from desktop to actual instance. 9) Migrate the substitution using jpximporter. 10) Restart the server and verify the substitution has done perfectly. 11) Go to /oracle/apps/pos/supplier/webui/QuickUpdatePG and personalize the page.Set the item read only property to ${oa.SitesVO.IsPymtReadOnly} 12) Click on Apply and in next page click on Return to Application. Verify your output.  Note: You can remove the substitution using following script.Please click here.

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  • Different fan behaviour in my laptop after upgrade, what to do now?

    - by student
    After upgrading from lubuntu 13.10 to 14.04 the fan of my laptop seems to run much more often than in 13.10. When it runs, it doesn't run continously but starts and stops every second. fwts fan results in Results generated by fwts: Version V14.03.01 (2014-03-27 02:14:17). Some of this work - Copyright (c) 1999 - 2014, Intel Corp. All rights reserved. Some of this work - Copyright (c) 2010 - 2014, Canonical. This test run on 12/05/14 at 21:40:13 on host Linux einstein 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64. Command: "fwts fan". Running tests: fan. fan: Simple fan tests. -------------------------------------------------------------------------------- Test 1 of 2: Test fan status. Test how many fans there are in the system. Check for the current status of the fan(s). PASSED: Test 1, Fan cooling_device0 of type Processor has max cooling state 10 and current cooling state 0. PASSED: Test 1, Fan cooling_device1 of type Processor has max cooling state 10 and current cooling state 0. PASSED: Test 1, Fan cooling_device2 of type LCD has max cooling state 15 and current cooling state 10. Test 2 of 2: Load system, check CPU fan status. Test how many fans there are in the system. Check for the current status of the fan(s). Loading CPUs for 20 seconds to try and get fan speeds to change. Fan cooling_device0 current state did not change from value 0 while CPUs were busy. Fan cooling_device1 current state did not change from value 0 while CPUs were busy. ADVICE: Did not detect any change in the CPU related thermal cooling device states. It could be that the devices are returning static information back to the driver and/or the fan speed is automatically being controlled by firmware using System Management Mode in which case the kernel interfaces being examined may not work anyway. ================================================================================ 3 passed, 0 failed, 0 warning, 0 aborted, 0 skipped, 0 info only. ================================================================================ 3 passed, 0 failed, 0 warning, 0 aborted, 0 skipped, 0 info only. Test Failure Summary ================================================================================ Critical failures: NONE High failures: NONE Medium failures: NONE Low failures: NONE Other failures: NONE Test |Pass |Fail |Abort|Warn |Skip |Info | ---------------+-----+-----+-----+-----+-----+-----+ fan | 3| | | | | | ---------------+-----+-----+-----+-----+-----+-----+ Total: | 3| 0| 0| 0| 0| 0| ---------------+-----+-----+-----+-----+-----+-----+ Here is the output of lsmod lsmod Module Size Used by i8k 14421 0 zram 18478 2 dm_crypt 23177 0 gpio_ich 13476 0 dell_wmi 12761 0 sparse_keymap 13948 1 dell_wmi snd_hda_codec_hdmi 46207 1 snd_hda_codec_idt 54645 1 rfcomm 69160 0 arc4 12608 2 dell_laptop 18168 0 bnep 19624 2 dcdbas 14928 1 dell_laptop bluetooth 395423 10 bnep,rfcomm iwldvm 232285 0 mac80211 626511 1 iwldvm snd_hda_intel 52355 3 snd_hda_codec 192906 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel snd_hwdep 13602 1 snd_hda_codec snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel snd_page_alloc 18710 2 snd_pcm,snd_hda_intel snd_seq_midi 13324 0 snd_seq_midi_event 14899 1 snd_seq_midi snd_rawmidi 30144 1 snd_seq_midi coretemp 13435 0 kvm_intel 143060 0 kvm 451511 1 kvm_intel snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi joydev 17381 0 serio_raw 13462 0 iwlwifi 169932 1 iwldvm pcmcia 62299 0 snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi snd_timer 29482 2 snd_pcm,snd_seq lpc_ich 21080 0 cfg80211 484040 3 iwlwifi,mac80211,iwldvm yenta_socket 41027 0 pcmcia_rsrc 18407 1 yenta_socket pcmcia_core 23592 3 pcmcia,pcmcia_rsrc,yenta_socket binfmt_misc 17468 1 snd 69238 17 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi soundcore 12680 1 snd parport_pc 32701 0 mac_hid 13205 0 ppdev 17671 0 lp 17759 0 parport 42348 3 lp,ppdev,parport_pc firewire_ohci 40409 0 psmouse 102222 0 sdhci_pci 23172 0 sdhci 43015 1 sdhci_pci firewire_core 68769 1 firewire_ohci crc_itu_t 12707 1 firewire_core ahci 25819 2 libahci 32168 1 ahci i915 783485 2 wmi 19177 1 dell_wmi i2c_algo_bit 13413 1 i915 drm_kms_helper 52758 1 i915 e1000e 254433 0 drm 302817 3 i915,drm_kms_helper ptp 18933 1 e1000e pps_core 19382 1 ptp video 19476 1 i915 I tried one answer to the similar question: loud fan on Ubuntu 14.04 and created a /etc/i8kmon.conf like the following: # Run as daemon, override with --daemon option set config(daemon) 1 # Automatic fan control, override with --auto option set config(auto) 1 # Status check timeout (seconds), override with --timeout option set config(timeout) 2 # Report status on stdout, override with --verbose option set config(verbose) 1 # Temperature thresholds: {fan_speeds low_ac high_ac low_batt high_batt} set config(0) {{0 0} -1 55 -1 55} set config(1) {{0 1} 50 60 55 65} set config(2) {{1 1} 55 80 60 85} set config(3) {{2 2} 70 128 75 128} With this setup the fan goes on even if the temperature is below 50 degree celsius (I don't see a pattern). However I get the impression that the CPU got's hotter in average than without this file. What changes from 13.10 to 14.04 may be responsible for this? If this is a bug, for which package I should report the bug?

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  • "postgres blocked for more than 120 seconds" - is my db still consistent?

    - by nn4l
    I am using an iscsi volume on an Open-E storage system for several virtual machines running on a XenServer host. Occasionally, when there is a very high disk I/O load on the virtual machines (and therefore also on the storage system), I got this error message on the vm consoles: [2594520.161701] INFO: task kjournald:117 blocked for more than 120 seconds. [2594520.161787] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [2594520.162194] INFO: task flush-202:0:229 blocked for more than 120 seconds. [2594520.162274] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [2594520.162801] INFO: task postgres:1567 blocked for more than 120 seconds. [2594520.162882] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. I understand this error message is caused by the kernel to inform that these processes haven't been run for 120 seconds, most likely because a disk access to the storage system has not yet been processed. But what is the effect on the processes. For example, will the postgres process eventually write its data when the storage system is idle again after a few minutes, so that all data is still consistent? Or will it abort the write, leaving some tables in an inconsistent state? I certainly expect that the former should be the case - if the disk access is slow, postgres (or any other affected process) should just wait as long as it takes. I can live with the application hanging for a few minutes. But if there is a chance for data corruption then any of these errors is really bad news. Please advise what to do here.

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  • tc u32 --- how to match L2 protocols in recent kernels?

    - by brownian
    I have a nice shaper, with hashed filtering, built at a linux bridge. In short, br0 connects external and internal physical interfaces, VLAN tagged packets are bridged "transparently" (I mean, no VLAN interfaces are there). Now, different kernels do it differently. I can be wrong with exact kernel verions ranges, please forgive me. Thanks. 2.6.26 So, in debian, 2.6.26 and up (up to 2.6.32, I believe) --- this works: tc filter add dev internal protocol 802.1q parent 1:0 prio 100 \ u32 ht 1:64 match ip dst 192.168.1.100 flowid 1:200 Here, "kernel" matches two bytes in "protocol" field with 0x8100, but counts the beginning of ip packet as a "zero position" (sorry for my English, if I'm a bit unclear). 2.6.32 Again, in debian (I've not built vanilla kernel), 2.6.32-5 --- this works: tc filter add dev internal protocol 802.1q parent 1:0 prio 100 \ u32 ht 1:64 match ip dst 192.168.1.100 at 20 flowid 1:200 Here, "kernel" matches the same for protocol, but counts offset from the beginning of this protocol's header --- I have to add 4 bytes to offset (20, not 16 for dst address). It's ok, seems more logical, as for me. 3.2.11, the latest stable now This works --- as if there is no 802.1q tag at all: tc filter add dev internal protocol ip parent 1:0 prio 100 \ u32 ht 1:64 match ip dst 192.168.1.100 flowid 1:200 The problem is that I couldn't find a way to match 802.1q tag so far. Matching 802.1q tag at past I could do this before as follows: tc filter add dev internal protocol 802.1q parent 1:0 prio 100 \ u32 match u16 0x0ed8 0x0fff at -4 flowid 1:300 Now I'm unable to match 802.1q tag with at 0, at -2, at -4, at -6 or like that. The main issue that I have zero hits count --- this filter is not being checked at all, "wrong protocol", in other words. Please, anyone, help me :-) Thanks!

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  • HPET missing from available clocksources on CentOS

    - by squareone
    I am having trouble using HPET on my physical machine. It is not available, even though I have enabled it in my bios, forced it in grub, and triple checked my kernel to include HPET in its compilation. Motherboard: Supermicro X9DRW Processor: 2x Intel(R) Xeon(R) CPU E5-2640 SAS Controller: LSI Logic / Symbios Logic SAS2004 PCI-Express Fusion-MPT SAS-2 [Spitfire] (rev 03) Distro: CentOS 6.3 Kernel: 3.4.21-rt32 #2 SMP PREEMPT RT x86_64 GNU/Linux Grub: hpet=force clocksource=hpet .config file: CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_HPET=y dmesg | grep hpet: Command line: ro root=/dev/mapper/vg_xxxx-lv_root rd_NO_LUKS rd_LVM_LV=vg_xxxx/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=vg_xxxx/lv_swap rd_NO_DM LANG=en_US.UTF-8 rhgb quiet panic=5 hpet=force clocksource=hpet Kernel command line: ro root=/dev/mapper/vg_xxxx-lv_root rd_NO_LUKS rd_LVM_LV=vg_xxxx/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=vg_xxxx/lv_swap rd_NO_DM LANG=en_US.UTF-8 rhgb quiet panic=5 hpet=force clocksource=hpet cat /sys/devices/system/clocksource/clocksource0/current_clocksource: tsc cat /sys/devices/system/clocksource/clocksource0/available_clocksource: tsc jiffies What is even more confusing, is that I have about a dozen other machines that utilize the same kernel .config, and can use HPET fine. I fear it is a hardware issue, but would appreciate any advice or help with getting HPET available. Thanks in advance!

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  • Creating extendible applications with MEF

    - by Visual WebGui
    Ever wanted to create an application that is easy to maintain and even more easy to extend? Then the following piece by Michael Hensen about Microsoft Extension Framework (MEF) could be a solution for your needs! With MEF, which is part of VS2010 own extensions platform, you can write parts of an application is an enclosed dll. This way you can build up your application the normal way and based on the requirements of a client you can add or remove functions as easy as removing a dll from the base...(read more)

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  • Is there a better way to create a generic convert string to enum method or enum extension?

    - by Kelsey
    I have the following methods in an enum helper class (I have simplified it for the purpose of the question): static class EnumHelper { public enum EnumType1 : int { Unknown = 0, Yes = 1, No = 2 } public enum EnumType2 : int { Unknown = 0, Dog = 1, Cat = 2, Bird = 3 } public enum EnumType3 : int { Unknown = 0, iPhone = 1, Andriod = 2, WindowsPhone7 = 3, Palm = 4 } public static EnumType1 ConvertToEnumType1(string value) { return (string.IsNullOrEmpty(value)) ? EnumType1.Unknown : (EnumType1)(Enum.Parse(typeof(EnumType1), value, true)); } public static EnumType2 ConvertToEnumType2(string value) { return (string.IsNullOrEmpty(value)) ? EnumType2.Unknown : (EnumType2)(Enum.Parse(typeof(EnumType2), value, true)); } public static EnumType3 ConvertToEnumType3(string value) { return (string.IsNullOrEmpty(value)) ? EnumType3.Unknown : (EnumType3)(Enum.Parse(typeof(EnumType3), value, true)); } } So the question here is, can I trim this down to an Enum extension method or maybe some type of single method that can handle any type. I have found some examples to do so with basic enums but the difference in my example is all the enums have the Unknown item that I need returned if the string is null or empty (if no match is found I want it to fail). Looking for something like the following maybe: EnumType1 value = EnumType1.Convert("Yes"); // or EnumType1 value = EnumHelper.Convert(EnumType1, "Yes"); One function to do it all... how to handle the Unknown element is the part that I am hung up on.

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  • Nautilus and file command in 11.04 don't show metadata for WebM files

    - by Pili
    The file-name extension .webm is used for media files using the WebM multimedia format, which consists of the WebM container (a subset of the Matroska container) and audio and video streams with independet enconding and quality settings. Description of the issue: For files in the WebM format, the program file says that files are raw data, instead of determining and displaying the real file-format, which is WebM. Besides, Nautilus doesn't display the technical metadata of files in this format. Why is the file program not displaying the file format for WebM files?

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  • extension methods with generics - when does caller need to include type parameters?

    - by Greg
    Hi, Is there a rule for knowing when one has to pass the generic type parameters in the client code when calling an extension method? So for example in the Program class why can I (a) not pass type parameters for top.AddNode(node), but where as later for the (b) top.AddRelationship line I have to pass them? class Program { static void Main(string[] args) { // Create Graph var top = new TopologyImp<string>(); // Add Node var node = new StringNode(); node.Name = "asdf"; var node2 = new StringNode(); node2.Name = "test child"; top.AddNode(node); top.AddNode(node2); top.AddRelationship<string, RelationshipsImp>(node,node2); // *** HERE *** } } public static class TopologyExtns { public static void AddNode<T>(this ITopology<T> topIf, INode<T> node) { topIf.Nodes.Add(node.Key, node); } public static INode<T> FindNode<T>(this ITopology<T> topIf, T searchKey) { return topIf.Nodes[searchKey]; } public static void AddRelationship<T,R>(this ITopology<T> topIf, INode<T> parentNode, INode<T> childNode) where R : IRelationship<T>, new() { var rel = new R(); rel.Child = childNode; rel.Parent = parentNode; } } public class TopologyImp<T> : ITopology<T> { public Dictionary<T, INode<T>> Nodes { get; set; } public TopologyImp() { Nodes = new Dictionary<T, INode<T>>(); } }

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  • What is the easiest way to get the property value from a passed lambda expression in an extension me

    - by Andrew Siemer
    I am writing a dirty little extension method for HtmlHelper so that I can say something like HtmlHelper.WysiwygFor(lambda) and display the CKEditor. I have this working currently but it seems a bit more cumbersome than I would prefer. I am hoping that there is a more straight forward way of doing this. Here is what I have so far. public static MvcHtmlString WysiwygFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression) { return MvcHtmlString.Create(string.Concat("<textarea class=\"ckeditor\" cols=\"80\" id=\"", expression.MemberName(), "\" name=\"editor1\" rows=\"10\">", GetValue(helper, expression), "</textarea>")); } private static string GetValue<TModel, TProperty>(HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression) { MemberExpression body = (MemberExpression)expression.Body; string propertyName = body.Member.Name; TModel model = helper.ViewData.Model; string value = typeof(TModel).GetProperty(propertyName).GetValue(model, null).ToString(); return value; } private static string MemberName<T, V>(this Expression<Func<T, V>> expression) { var memberExpression = expression.Body as MemberExpression; if (memberExpression == null) throw new InvalidOperationException("Expression must be a member expression"); return memberExpression.Member.Name; } Thanks!

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  • chrome extension: get specific part of the current tab page in DOM object and display it in either popup.html or new html page?

    - by sandeep
    IS there any way so that i can convert any DOM object into HTML page within the script ? suppose I have dom object like this: content script.js chrome.extension.onRequest.addListener(function(request, sender, sendResponse) { if (request.method == "fromPopup") { console.log("got Request from Popup"); var myDivObj = document.getElementById("definition"); //sendResponse({data: "from Content Script to Popup"}); if ( myDivObj ) { sendResponse({data:myDivObj}); } else{ sendResponse({data:"Empty or No Tag"}); } console.log("sent Response1"); } else { sendResponse({}); // snub them. console.log("sent Response2"); } }); here is my popup.html <body> <Div>Searching..</Div> <Div id="output">Response??</Div> <script> console.log("Pop UP Clicked"); chrome.tabs.getSelected(null, function(tab) { chrome.tabs.sendRequest(tab.id, {method: "fromPopup", tabid: tab.id}, function(response) { console.log("got Response from Content Script"); document.getElementById("output").innerHTML=response.data; }); }); </script> </body> I know we can send onaly JSON type of data to the popup.html page.. am i right ? If yes is ther any way that I can creat HTML page with DOM Object( myDivObj ) which I collected.. Any alternative solution..? In short i want get only specific part of the current tab page in DOM object and display it in either popup.html or separate html page..

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  • If I cast an IQueryable as an IEnumerable then call a Linq extension method, which implementation gets called?

    - by James Morcom
    Considering the following code: IQueryable<T> queryable; // something to instantiate queryable var enumerable = (IEnumerable<T>) queryable; var filtered = enumerable.Where(i => i > 3); In the final line, which extension method gets called? Is it IEnumerable<T>.Where(...)? Or will IQueryable<T>.Where(...) be called because the actual implementation is still obviously a queryable? Presumably the ideal would be for the IQueryable version to be called, in the same way that normal polymorphism will always use the more specific override. In Visual Studio though when I right-click on the Where method and "Go to Definition" I'm taken to the IEnumerable version, which kind of makes sense from a visual point-of-view. My main concern is that if somewhere in my app I use Linq to NHibernate to get a Queryable, but I pass it around using an interface that uses the more general IEnumerable signature, I'll lose the wonders of deferred database execution!

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  • iTunes 9.0.2 hangs on launch on Mac OS X 10.6.2

    - by dlamblin
    My iTunes 9.0.2 hangs on launch in OS X 10.6.2. This doesn't happen all the time, only if I've been running for a while. Then it will recur until I restart. Similarly Safari 4.0.4 will hang in the flash player plugin when about to play a video. If I restart both these problems go away until later. Based on this crash dump I am suspecting Audio Hijack Pro. I will try to install a newer version of the driver involved, but so far I haven't had much luck. I have uninstalled the Flash Plugin (10.0.r42 and r32) but clearly I want it in the long run. This is iTunes' crash report. Date/Time: 2009-12-14 19:56:02 -0500 OS Version: 10.6.2 (Build 10C540) Architecture: x86_64 Report Version: 6 Command: iTunes Path: /Applications/iTunes.app/Contents/MacOS/iTunes Version: 9.0.2 (9.0.2) Build Version: 2 Project Name: iTunes Source Version: 9022501 Parent: launchd [120] PID: 16878 Event: hang Duration: 3.55s (sampling started after 2 seconds) Steps: 16 (100ms sampling interval) Pageins: 5 Pageouts: 0 Process: iTunes [16878] Path: /Applications/iTunes.app/Contents/MacOS/iTunes UID: 501 Thread 8f96000 User stack: 16 ??? (in iTunes + 6633) [0x29e9] 16 ??? (in iTunes + 6843) [0x2abb] 16 ??? (in iTunes + 11734) [0x3dd6] 16 ??? (in iTunes + 44960) [0xbfa0] 16 ??? (in iTunes + 45327) [0xc10f] 16 ??? (in iTunes + 2295196) [0x23159c] 16 ??? (in iTunes + 103620) [0x1a4c4] 16 ??? (in iTunes + 105607) [0x1ac87] 16 ??? (in iTunes + 106442) [0x1afca] 16 OpenAComponent + 433 (in CarbonCore) [0x972e9dd0] 16 CallComponentOpen + 43 (in CarbonCore) [0x972ebae7] 16 CallComponentDispatch + 29 (in CarbonCore) [0x972ebb06] 16 DefaultOutputAUEntry + 319 (in CoreAudio) [0x70031117] 16 AUGenericOutputEntry + 15273 (in CoreAudio) [0x7000e960] 16 AUGenericOutputEntry + 13096 (in CoreAudio) [0x7000e0df] 16 AUGenericOutputEntry + 9628 (in CoreAudio) [0x7000d353] 16 ??? [0xe0c16d] 16 ??? [0xe0fdf8] 16 ??? [0xe0e1e7] 16 ahs_hermes_CoreAudio_init + 32 (in Instant Hijack Server) [0x13fc7e9] 16 semaphore_wait_signal_trap + 10 (in libSystem.B.dylib) [0x9798e922] Kernel stack: 16 semaphore_wait_continue + 0 [0x22a0a5] Thread 9b9eb7c User stack: 16 thread_start + 34 (in libSystem.B.dylib) [0x979bbe42] 16 _pthread_start + 345 (in libSystem.B.dylib) [0x979bbfbd] 16 ??? (in iTunes + 4011870) [0x3d475e] 16 CFRunLoopRun + 84 (in CoreFoundation) [0x993497a4] 16 CFRunLoopRunSpecific + 452 (in CoreFoundation) [0x99343864] 16 __CFRunLoopRun + 2079 (in CoreFoundation) [0x9934477f] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x9798e8da] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 9bc8b7c User stack: 16 start_wqthread + 30 (in libSystem.B.dylib) [0x979b4336] 16 _pthread_wqthread + 390 (in libSystem.B.dylib) [0x979b44f1] 16 _dispatch_worker_thread2 + 234 (in libSystem.B.dylib) [0x979b4a68] 16 _dispatch_queue_invoke + 163 (in libSystem.B.dylib) [0x979b4cc3] 16 kevent + 10 (in libSystem.B.dylib) [0x979b50ea] Kernel stack: 16 kevent + 97 [0x471745] Binary Images: 0x1000 - 0xbecfea com.apple.iTunes 9.0.2 (9.0.2) <1F665956-0131-39AF-F334-E29E510D42DA> /Applications/iTunes.app/Contents/MacOS/iTunes 0x13f6000 - 0x1402ff7 com.rogueamoeba.audio_hijack_server.hermes 2.2.2 (2.2.2) <9B29AE7F-6951-E63F-616A-482B62179A5C> /usr/local/hermes/modules/Instant Hijack Server.hermesmodule/Contents/MacOS/Instant Hijack Server 0x70000000 - 0x700cbffb com.apple.audio.units.Components 1.6.1 (1.6.1) <600769A2-479A-CA6E-A214-C8766F7CBD0F> /System/Library/Components/CoreAudio.component/Contents/MacOS/CoreAudio 0x97284000 - 0x975a3fe7 com.apple.CoreServices.CarbonCore 861.2 (861.2) <A9077470-3786-09F2-E0C7-F082B7F97838> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore 0x9798e000 - 0x97b32feb libSystem.B.dylib ??? (???) <D45B91B2-2B4C-AAC0-8096-1FC48B7E9672> /usr/lib/libSystem.B.dylib 0x99308000 - 0x9947ffef com.apple.CoreFoundation 6.6.1 (550.13) <AE9FC6F7-F0B2-DE58-759E-7DB89C021A46> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation Process: AirPort Base Station Agent [142] Path: /System/Library/CoreServices/AirPort Base Station Agent.app/Contents/MacOS/AirPort Base Station Agent UID: 501 Thread 8b1d3d4 DispatchQueue 1 User stack: 16 ??? (in AirPort Base Station Agent + 5344) [0x1000014e0] 16 ??? (in AirPort Base Station Agent + 70666) [0x10001140a] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 8b80000 DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Thread 6e3c7a8 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 __workq_kernreturn + 10 (in libSystem.B.dylib) [0x7fff878869da] Kernel stack: 16 workqueue_thread_yielded + 562 [0x4cb6ae] Thread 8b0f3d4 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 select$DARWIN_EXTSN + 10 (in libSystem.B.dylib) [0x7fff878b09e2] Kernel stack: 16 sleep + 52 [0x487f93] Thread 8bcb000 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 ??? (in AirPort Base Station Agent + 71314) [0x100011692] 16 ??? (in AirPort Base Station Agent + 13712) [0x100003590] 16 ??? (in AirPort Base Station Agent + 71484) [0x10001173c] 16 __semwait_signal + 10 (in libSystem.B.dylib) [0x7fff878a79ee] Kernel stack: 16 semaphore_wait_continue + 0 [0x22a0a5] Binary Images: 0x100000000 - 0x100016fff com.apple.AirPortBaseStationAgent 1.5.4 (154.2) <73DF13C1-AF86-EC2C-9056-8D1946E607CF> /System/Library/CoreServices/AirPort Base Station Agent.app/Contents/MacOS/AirPort Base Station Agent 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: AppleSpell [3041] Path: /System/Library/Services/AppleSpell.service/Contents/MacOS/AppleSpell UID: 501 Thread 999a000 DispatchQueue 1 User stack: 16 ??? (in AppleSpell + 5852) [0x1000016dc] 16 ??? (in AppleSpell + 6508) [0x10000196c] 16 -[NSSpellServer run] + 72 (in Foundation) [0x7fff81d3b796] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 8a9e7a8 DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Binary Images: 0x100000000 - 0x1000a9fef com.apple.AppleSpell 1.6.1 (61.1) <6DE57CC1-77A0-BC06-45E7-E1EACEBE1A88> /System/Library/Services/AppleSpell.service/Contents/MacOS/AppleSpell 0x7fff81cbc000 - 0x7fff81f3dfe7 com.apple.Foundation 6.6.1 (751.14) <767349DB-C486-70E8-7970-F13DB4CDAF37> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: autofsd [52] Path: /usr/libexec/autofsd UID: 0 Thread 79933d4 DispatchQueue 1 User stack: 16 ??? (in autofsd + 5340) [0x1000014dc] 16 ??? (in autofsd + 6461) [0x10000193d] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 75997a8 DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Binary Images: 0x100000000 - 0x100001ff7 autofsd ??? (???) <29276FAC-AEA8-1520-5329-C75F9D453D6C> /usr/libexec/autofsd 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: blued [51] Path: /usr/sbin/blued UID: 0 Thread 7993000 DispatchQueue 1 User stack: 16 ??? (in blued + 5016) [0x100001398] 16 ??? (in blued + 152265) [0x1000252c9] 16 -[NSRunLoop(NSRunLoop) run] + 77 (in Foundation) [0x7fff81d07903] 16 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 270 (in Foundation) [0x7fff81d07a24] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 70db000 DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Thread 84d2000 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 select$DARWIN_EXTSN + 10 (in libSystem.B.dylib) [0x7fff878b09e2] Kernel stack: 16 sleep + 52 [0x487f93] Binary Images: 0x100000000 - 0x100044fff blued ??? (???) <ECD752C9-F98E-3052-26BF-DC748281C992> /usr/sbin/blued 0x7fff81cbc000 - 0x7fff81f3dfe7 com.apple.Foundation 6.6.1 (751.14) <767349DB-C486-70E8-7970-F13DB4CDAF37> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: check_afp [84504] Path: /System/Library/Filesystems/AppleShare/check_afp.app/Contents/MacOS/check_afp UID: 0 Thread 1140f000 DispatchQueue 1 User stack: 16 ??? (in check_afp + 5596) [0x1000015dc] 16 ??? (in check_afp + 12976) [0x1000032b0] 16 ??? (in check_afp + 6664) [0x100001a08] 16 ??? (in check_afp + 6520) [0x100001978] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 13ad8b7c DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Thread 13ad6b7c User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 ??? (in check_afp + 13071) [0x10000330f] 16 mach_msg_server_once + 285 (in libSystem.B.dylib) [0x7fff878b2417] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 13ad87a8 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 select$DARWIN_EXTSN + 10 (in libSystem.B.dylib) [0x7fff878b09e2] Kernel stack: 16 sleep + 52 [0x487f93] Binary Images: 0x100000000 - 0x100004ff7 com.apple.check_afp 2.0 (2.0) <EE865A7B-8CDC-7649-58E1-6FE2B43F7A73> /System/Library/Filesystems/AppleShare/check_afp.app/Contents/MacOS/check_afp 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: configd [14] Path: /usr/libexec/configd UID: 0 Thread 704a3d4 DispatchQueue 1 User stack: 16 start + 52 (in configd) [0x100001488] 16 main + 2051 (in configd) [0x100001c9e] 16 server_loop + 72 (in configd) [0x1000024f4] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 6e70000 DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Thread 74a7b7c User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 plugin_exec + 1440 (in configd) [0x100003c5b] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 7560000 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 _io_pm_force_active_settings + 2266 (in PowerManagement) [0x10050f968] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 75817a8 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 select$DARWIN_EXTSN + 10 (in libSystem.B.dylib) [0x7fff878b09e2] Kernel stack: 16 sleep + 52 [0x487f93] Thread 8b1db7c User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 __workq_kernreturn + 10 (in libSystem.B.dylib) [0x7fff878869da] Kernel stack: 16 workqueue_thread_yielded + 562 [0x4cb6ae] Binary Images: 0x100000000 - 0x100026ff7 configd ??? (???) <58C02CBA-5556-4CDC-2763-814C4C7175DE> /usr/libexec/configd 0x10050c000 - 0x10051dfff com.apple.SystemConfiguration.PowerManagement 160.0.0 (160.0.0) <0AC3D2ED-919E-29C7-9EEF-629FBDDA6159> /System/Library/SystemConfiguration/PowerManagement.bundle/Contents/MacOS/PowerManagement 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: coreaudiod [114] Path: /usr/sbin/coreaudiod UID: 202 Thread 83b93d4 DispatchQueue 1 User stack: 16 ??? (in coreaudiod + 3252) [0x100000cb4] 16 ??? (in coreaudiod + 26505) [0x100006789] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 847e3d4 DispatchQueue 2 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Thread 854c000 User stack: 3 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 3 __workq_kernreturn + 10 (in libSystem.B.dylib) [0x7fff878869da] Kernel stack: 3 workqueue_thread_yielded + 562 [0x4cb6ae] Binary Images: 0x100000000 - 0x10001ffef coreaudiod ??? (???) <A060D20F-A6A7-A3AE-84EC-11D7D7DDEBC6> /usr/sbin/coreaudiod 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: coreservicesd [66] Path: /System/Library/CoreServices/coreservicesd UID: 0 Thread 7994000 DispatchQueue 1 User stack: 16 ??? (in coreservicesd + 3756) [0x100000eac] 16 _CoreServicesServerMain + 522 (in CarbonCore) [0x7fff8327a972] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread 76227a8 User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 read + 10 (in libSystem.B.dylib) [0x7fff87877426] Kernel stack: 16 lo64_unix_scall + 77 [0x29e3fd] 16 unix_syscall64 + 617 [0x4ee947] 16 read_nocancel + 158 [0x496add] 16 write + 312 [0x49634d] 16 get_pathbuff + 3054 [0x3023db] 16 tsleep + 105 [0x4881ce] 16 wakeup + 786 [0x487da7] 16 thread_block + 33 [0x226fb5] 16 thread_block_reason + 331 [0x226f27] 16 thread_dispatch + 1950 [0x226c88] 16 machine_switch_context + 753 [0x2a5a37] Thread 7622b7c User stack: 16 thread_start + 13 (in libSystem.B.dylib) [0x7fff878a5e41] 16 _pthread_start + 331 (in libSystem.B.dylib) [0x7fff878a5f8e] 16 fmodWatchConsumer + 347 (in CarbonCore) [0x7fff8322f23f] 16 __semwait_signal + 10 (in libSystem.B.dylib) [0x7fff878a79ee] Kernel stack: 16 semaphore_wait_continue + 0 [0x22a0a5] Thread 79913d4 User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 244 (in libSystem.B.dylib) [0x7fff87887286] 16 _dispatch_queue_invoke + 185 (in libSystem.B.dylib) [0x7fff8788775c] 16 kevent + 10 (in libSystem.B.dylib) [0x7fff87885bba] Kernel stack: 16 kevent + 97 [0x471745] Thread 84d2b7c User stack: 16 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 16 __workq_kernreturn + 10 (in libSystem.B.dylib) [0x7fff878869da] Kernel stack: 16 workqueue_thread_yielded + 562 [0x4cb6ae] Thread 9b643d4 User stack: 15 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 15 __workq_kernreturn + 10 (in libSystem.B.dylib) [0x7fff878869da] Kernel stack: 16 workqueue_thread_yielded + 562 [0x4cb6ae] Binary Images: 0x100000000 - 0x100000fff coreservicesd ??? (???) <D804E55B-4376-998C-AA25-2ADBFDD24414> /System/Library/CoreServices/coreservicesd 0x7fff831cb000 - 0x7fff834fdfef com.apple.CoreServices.CarbonCore 861.2 (861.2) <39F3B259-AC2A-792B-ECFE-4F3E72F2D1A5> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore 0x7fff86e3b000 - 0x7fff86faeff7 com.apple.CoreFoundation 6.6.1 (550.13) <1E952BD9-37C6-16BE-B2F0-CD92A6283D37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: cron [31] Path: /usr/sbin/cron UID: 0 Thread 75acb7c DispatchQueue 1 User stack: 16 ??? (in cron + 2872) [0x100000b38] 16 ??? (in cron + 3991) [0x100000f97] 16 sleep + 61 (in libSystem.B.dylib) [0x7fff878f5090] 16 __semwait_signal + 10 (in libSystem.B.dylib) [0x7fff878a79ee] Kernel stack: 16 semaphore_wait_continue + 0 [0x22a0a5] Binary Images: 0x100000000 - 0x100006fff cron ??? (???) <3C5DCC7E-B6E8-1318-8E00-AB721270BFD4> /usr/sbin/cron 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: cvmsServ [104] Path: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/cvmsServ UID: 0 Thread 761f3d4 DispatchQueue 1 User stack: 16 ??? (in cvmsServ + 4100) [0x100001004] 16 ??? (in cvmsServ + 23081) [0x100005a29] 16 mach_msg_server + 597 (in libSystem.B.dylib) [0x7fff878ea1c8] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Binary Images: 0x100000000 - 0x100008fff cvmsServ ??? (???) <6200AD80-4159-5656-8736-B72B7388C461> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/cvmsServ 0x7fff8786c000 - 0x7fff87a2aff7 libSystem.B.dylib ??? (???) <526DD3E5-2A8B-4512-ED97-01B832369959> /usr/lib/libSystem.B.dylib Process: DirectoryService [11] Path: /usr/sbin/DirectoryService UID: 0 Thread 70db7a8 DispatchQueue 1 User stack: 16 start + 52 (in DirectoryService) [0x10000da74] 16 main + 3086 (in DirectoryService) [0x10000e68a] 16 CFRunLoopRun + 70 (in CoreFoundation) [0x7fff86e859b6] 16 CFRunLoopRunSpecific + 575 (in CoreFoundation) [0x7fff86e85c2f] 16 __CFRunLoopRun + 1698 (in CoreFoundation) [0x7fff86e867a2] 16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x7fff8786ce3a] Kernel stack: 16 ipc_mqueue_receive_continue + 0 [0x210aa3] Thread <multiple> DispatchQueue 6 User stack: 17 start_wqthread + 13 (in libSystem.B.dylib) [0x7fff87886a55] 17 _pthread_wqthread + 353 (in libSystem.B.dylib) [0x7fff87886bb8] 16 _dispatch_worker_thread2 + 231 (in libSystem.B.dylib) [0x7fff87887279] 16 _dispatch_call_block_and_release + 15 (in libSystem.B.dylib) [0x7fff878a8ce8] 16 syscall + 10 (in libSystem.B.dylib) [0x7fff878a92da] 1 _disp

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  • OOM-Killer, jboss and kernel panic

    - by user32425
    Hi, We are running RedHat 3.4.6(x32) on VMWareEsx3.5(x64) with 6GB RAM. A few java processes(including jboss) are running in the background. The problem is that the java processes consume lots of memory, and sometimes they are killed by the OOM-killer. When OOM-killer is about to act, the free physical memory is very low 100MB-200MB, but the swap is not used (99% free). Sometimes this causes a kernel panic too. So why isn't the swap used? How to investigate this kernel panic? Is using 6GB memory on 32bit Redhat wise? Thanks

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  • OSX: Selecting default application for all unknown and different file types (extensions)

    - by Leo
    I work in cluster computing and am using Mac OS X 10.6. I send off hundreds of computing jobs a day, and each one comes back with with a different extension. For example, svmGeneSelect.o12345 which is the std output of my svmGeneSelect job which is job number 12345. I don't control the extensions. All files are plain text. I want OSX to open any file extension that it hasn't seen before with my favorite text editor when I click on it. Or even better set up file association defaults for extension patterns ie textEdit for extensions matching *.o*. I do NOT want to create file associations for individual files since this extension will only ever exist once, and I do not want to go through the process of selecting the application to use for each file. Thanks for any help you can offer.

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  • Getting kernel errors when manually mounting VirtualBox shared folders

    - by Ross
    Updated: I've rephrased this problem as I understand it a bit more now (and have encountered another problem). I'm using a Fedora 15 guest on a Windows 7 host using VirtualBox. I am trying to mount a partition on the host PC as a shared folder for use in the guest. The folder appears in /media and is accessible when I use the auto-mount feature when setting up the shared folder, but when I attempt to mount without auto-mount I get the following error: $ sudo mount.vboxsf data /mnt/host_data /sbin/mount.vboxsf: Could not add an entry to the mount table.: Invalid argument In addition a popup appears (part of Fedora/GNOME) reporting a crash in the kernel package: WARNING: at lib/list_debug.c:26 __list_add+0x3e/0x81() However the shared folder seems to work, I can certainly browse it (although everything seems to be executable, probably down to a Windows host). Is there something wrong with what I'm doing or is this a bug (and in which case should it be reported to the Linux Kernel team or VirtualBox)?

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  • Kernel-mode Authentication: 401 errors when accessing site from remote machines

    - by CJM
    I have several Classic ASP sites that use Integrated Windows Authentication and Kerberos delegation. They work OK on the live servers (recently moved to a Server 2008/IIS7 servers), but do not work fully on my development PC or my development server. The IIS on both machines were configured through an IIS web deployment tool package which was exported from an old machine; the deployment didn't work perfectly, and I had to tinker a bit to get the sites working. When accessing the apps locally on either machine, they work fine; when accessing from another machine, the user is prompted by a username/password dialog, and regardless of what you enter, ultimately it results in a 401 (Unauthorised) error. I've tried comparing the configuration of these machines against similar live servers (that all work fine), and they seem generally comparable (given that none of the live servers are yet on IIS7.5 (Windows 7/Server 2008 R2). These applications run in a common application pool which uses a special domain user as it's identity - this user has similar permissions on the live and development machines. On IIS6 platforms, to enable kerberos delegation, I needed to set up some SPNs for this user, and they are still in place (even though I don't believe they are needed any longer for IIS7+ due to kernel-mode authentication), Furthermore, this account is enabled for Kerberos delegation in Active Directory, as is each machine I am dealing with. I'm considering the possibility that the deployment might have made changes/failed to make changes to the IIS configuration thus causing this problem. Perhaps a complete rebuild (minus another web deployment attempt) would solve the problem, but I'd rather fix (thus understand) the current problem. Any ideas so far? I've just had another attempt at fixing this issue, and I've made some progress, but I don't have a complete fix...yet. I've discovered that if I access the sites via IP address (than via NetBIOS name), I get the same dialog, except that it accepts my credentials and thus the application works - not quite a fix, but a useful step. More interestingly, I discovered that if I disable Kernel-mode authentication (in IIS Manager Website Authentication Advanced Settings), the applications work perfectly. My foggy understanding is that this is effectively working in the pre-IIS7 way. A reasonable short-term solution, but consider the following explicit advice from IIS on this issue: By default, IIS enables kernel-mode authentication, which may improve authentication performance and prevent authentication problems with application pools configured to use a custom identity. As a best practice, do not disable this setting if Kerberos authentication is used in your environment and the application pool is configured to use a custom identity. Clearly, this is not the way my applications should be working. So what is the issue?

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  • Windows 2008 R2 on ESXi 4.1 cpu utilization kernel high

    - by MK.
    I have a Win2k8 guest running on ESXi 4.1. The host has 12 cores and the problem happens even if the guest is the only VM on the host. We have 4 cores dedicated to the guest. We noticed that network starts chocking when the CPU load goes up. After some testing we noticed that when running a simple CPU hogging tool set up to run 3 threads at 100% the regular CPU load goes to 75% like it should and the "kernel times" graph in task manager goes up to 25%. My intuition tells me that the network problem and kernel times problem are the same. This is confirmed by another similar VM we created on the same host which doesn't have either of the problems. VMWare tools are obviously installed. The nic is e1000. What else can we do to troubleshoot this?

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  • ASUS N550 laptop not charging on ubuntu after updating kernel

    - by OBY Trance
    I'm using Ubuntu 13.10 on a pretty new ASUS N550jv laptop. When I was using kernel linux-image-3.11.0-11 everything was quite well (kinda..), however, when I updated the kernel using the automatic update, the kernels which were released afterwards (12+) were faulty on my machine, and caused the battery not to be charged and only stay at their current charging level (even when the machine was off!) The only fix I had was to roll-back to the '..11' version (on boot screen - advanced options), and hard-reboot (AC cord disconnected and reconnected) but now version 14 was released and "pushed away" the good old version 11. How can I fix that?? Please help me...

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  • Shell extension installation not recognized by Windows 7 64-bit shell

    - by Avalanchis
    I have a Copy Hook Handler shell extension that I'm trying to install on Windows 7 64-bit. The shell extension DLL is compiled in two separate versions for 32-bit and 64-bit Windows. The DLL implements DLLRegisterServer which adds the necessary registry entries. After adding the registry entries, it calls the following line of code to nofity the Windows shell: SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL); Everything works great on Windows7 32-bit. The shell recognizes the extension immediately. On 64-bit, the shell extension is only recognized after the shell is restarted. Is there anything I can do to cause the extension to be recognized without restarting the 64-bit shell?

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  • CUDA: How to reuse kernels in multiple files (for unit testing)

    - by zenna
    How can I go about reusing the same kernel without getting fatal linking errors due to defining the symbol multiple times In Visual Studio I get "fatal error LNK1169: one or more multiply defined symbols found" My current structure is as follows: Interface.h has an extern interface to a C function: myCfunction() (ala the C++ integration SDK example) Kernel.cu contains the actual __global__ kernels and is NOT included in the build: __global__ my_kernel() Wrapper.cu inlcudes Kernel.cu and Interface.h and calls my_kernel<<<...>>> This all works fine. But if I add another C function in another file which also includes Kernel.cu and uses those kernels, I get the errors. So how can I reuse the kernels in Kernel.cu among many C functions in different files. The purpose of this by the way is unit testing, and integrating my kernels with CPP unit, if there is no way to reuse kernels (there must be!) then other suggestions for unit testing kernels within my existing CPP unit framework would be appreciate. Thanks Zenna

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  • Enumerable Interleave Extension Method

    - by João Angelo
    A recent stackoverflow question, which I didn’t bookmark and now I’m unable to find, inspired me to implement an extension method for Enumerable that allows to insert a constant element between each pair of elements in a sequence. Kind of what String.Join does for strings, but maintaining an enumerable as the return value. Having done the single element part I got a bit carried away and ended up expanding it adding overloads to support interleaving elements of another sequence and support for a predicate to control when interleaving takes place. I have to confess that I did this for fun and now I can’t think of any real usage scenario, nonetheless, it may prove useful for someone. First a simple example: var target = new string[] { "(", ")", "(", ")" }; var result = target.Interleave(".", (f, s) => f == "("); // Prints: (.)(.) Console.WriteLine(String.Join(string.Empty, result)); And now the untested but documented implementation: using System; using System.Collections; using System.Collections.Generic; using System.Linq; public static class EnumerableExtensions { /// <summary> /// Iterates infinitely over a constant element. /// </summary> /// <typeparam name="T"> /// The type of element in the sequence. /// </typeparam> private class InfiniteSequence<T> : IEnumerable<T>, IEnumerator<T> { public InfiniteSequence(T element) { this.Element = element; } public T Element { get; private set; } public IEnumerator<T> GetEnumerator() { return this; } IEnumerator IEnumerable.GetEnumerator() { return this; } T IEnumerator<T>.Current { get { return this.Element; } } void IDisposable.Dispose() { } object IEnumerator.Current { get { return this.Element; } } bool IEnumerator.MoveNext() { return true; } void IEnumerator.Reset() { } } /// <summary> /// Interleaves the specified <paramref name="element"/> between each pair of elements in the <paramref name="target"/> sequence. /// </summary> /// <typeparam name="T"> /// The type of elements in the sequence. /// </typeparam> /// <param name="target"> /// The target sequence to be interleaved. /// </param> /// <param name="element"> /// The element used to perform the interleave operation. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="target"/> or <paramref name="element"/> is a null reference. /// </exception> /// <returns> /// The <paramref name="target"/> sequence interleaved with the specified <paramref name="element"/>. /// </returns> public static IEnumerable<T> Interleave<T>( this IEnumerable<T> target, T element) { if (target == null) throw new ArgumentNullException("target"); if (element == null) throw new ArgumentNullException("element"); return InterleaveInternal(target, new InfiniteSequence<T>(element), (f, s) => true); } /// <summary> /// Interleaves the specified <paramref name="element"/> between each pair of elements in the <paramref name="target"/> sequence. /// </summary> /// <remarks> /// The interleave operation is interrupted as soon as the <paramref name="target"/> sequence is exhausted; If the number of <paramref name="elements"/> to be interleaved are not enough to completely interleave the <paramref name="target"/> sequence then the remainder of the sequence is returned without being interleaved. /// </remarks> /// <typeparam name="T"> /// The type of elements in the sequence. /// </typeparam> /// <param name="target"> /// The target sequence to be interleaved. /// </param> /// <param name="elements"> /// The elements used to perform the interleave operation. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="target"/> or <paramref name="element"/> is a null reference. /// </exception> /// <returns> /// The <paramref name="target"/> sequence interleaved with the specified <paramref name="elements"/>. /// </returns> public static IEnumerable<T> Interleave<T>( this IEnumerable<T> target, IEnumerable<T> elements) { if (target == null) throw new ArgumentNullException("target"); if (elements == null) throw new ArgumentNullException("elements"); return InterleaveInternal(target, elements, (f, s) => true); } /// <summary> /// Interleaves the specified <paramref name="element"/> between each pair of elements in the <paramref name="target"/> sequence that satisfy <paramref name="predicate"/>. /// </summary> /// <typeparam name="T"> /// The type of elements in the sequence. /// </typeparam> /// <param name="target"> /// The target sequence to be interleaved. /// </param> /// <param name="element"> /// The element used to perform the interleave operation. /// </param> /// <param name="predicate"> /// A predicate used to assert if interleaving should occur between two target elements. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="target"/> or <paramref name="element"/> or <paramref name="predicate"/> is a null reference. /// </exception> /// <returns> /// The <paramref name="target"/> sequence interleaved with the specified <paramref name="element"/>. /// </returns> public static IEnumerable<T> Interleave<T>( this IEnumerable<T> target, T element, Func<T, T, bool> predicate) { if (target == null) throw new ArgumentNullException("target"); if (element == null) throw new ArgumentNullException("element"); if (predicate == null) throw new ArgumentNullException("predicate"); return InterleaveInternal(target, new InfiniteSequence<T>(element), predicate); } /// <summary> /// Interleaves the specified <paramref name="element"/> between each pair of elements in the <paramref name="target"/> sequence that satisfy <paramref name="predicate"/>. /// </summary> /// <remarks> /// The interleave operation is interrupted as soon as the <paramref name="target"/> sequence is exhausted; If the number of <paramref name="elements"/> to be interleaved are not enough to completely interleave the <paramref name="target"/> sequence then the remainder of the sequence is returned without being interleaved. /// </remarks> /// <typeparam name="T"> /// The type of elements in the sequence. /// </typeparam> /// <param name="target"> /// The target sequence to be interleaved. /// </param> /// <param name="elements"> /// The elements used to perform the interleave operation. /// </param> /// <param name="predicate"> /// A predicate used to assert if interleaving should occur between two target elements. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="target"/> or <paramref name="element"/> or <paramref name="predicate"/> is a null reference. /// </exception> /// <returns> /// The <paramref name="target"/> sequence interleaved with the specified <paramref name="elements"/>. /// </returns> public static IEnumerable<T> Interleave<T>( this IEnumerable<T> target, IEnumerable<T> elements, Func<T, T, bool> predicate) { if (target == null) throw new ArgumentNullException("target"); if (elements == null) throw new ArgumentNullException("elements"); if (predicate == null) throw new ArgumentNullException("predicate"); return InterleaveInternal(target, elements, predicate); } private static IEnumerable<T> InterleaveInternal<T>( this IEnumerable<T> target, IEnumerable<T> elements, Func<T, T, bool> predicate) { var targetEnumerator = target.GetEnumerator(); if (targetEnumerator.MoveNext()) { var elementsEnumerator = elements.GetEnumerator(); while (true) { T first = targetEnumerator.Current; yield return first; if (!targetEnumerator.MoveNext()) yield break; T second = targetEnumerator.Current; bool interleave = true && predicate(first, second) && elementsEnumerator.MoveNext(); if (interleave) yield return elementsEnumerator.Current; } } } }

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