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• Suse 12.3 cannot boot after a forced shutdown

  - by David Dai

  I was doing a system update using zypper update After a while the screen was filled with this message failed to start system logging service. and the system was not responding. I had to shutdown it by holding the power button. then I started the machine again, and selected to boot suse. Then I saw the fancy boot animation(some shiny big dots gathering to the center of the screen), then the screen just turned black and the monitor sayed "no signal". then I tried to boot into suse failsafe mode, which was fine. how can I investigate into this problem?

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• SQL Performance Problem IA64

  - by Vendoran

  We’ve got a performance problem in production. QA and DEV environments are 2 instances on the same physical server: Windows 2003 Enterprise SP2, 32 GB RAM, 1 Quad 3.5 GHz Intel Xeon X5270 (4 cores x64), SQL 2005 SP3 (9.0.4262), SAN Drives Prod: Windows 2003 Datacenter SP2, 64 GB RAM, 4 Dual Core 1.6 GHz Intel Family 80000002, Model 6 Itanium (8 cores IA64), SQL 2005 SP3 (9.0.4262), SAN Drives, Veritas Cluster I am seeing excessive Signal Wait Percentages ( 250%) and Page Reads /s (50) and Page Writes /s (25) are both high occasionally. I did test this query on both QA and PROD and it has the same execution plan and even the same stats: SELECT top 40000000 * INTO dbo.tmp_tbl FROM dbo.tbl GO Scan count 1, logical reads 429564, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. As you can see it’s just logical reads, however: QA: 0:48 Prod: 2:18 So It seems like a processor related issue, however I’m not sure where to go next, any ideas? Thanks, Aaron

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• Identical traffic

  - by Walter White

  Hi all, I am running an application server and logging all requests for analysis purposes later. One interesting trend I noticed last night was, I had a visitor from Texas on FIOS share identical traffic with bluecoat in California. What would cause the traffic to be identical? For every request the visitor made, bluecoat made one subsequently within milliseconds of his request. If it is caching, why would there be identical requests? Wouldn't it go through the cache / proxy on their end, and I would only see the proxied request? I'm just curious, this is an interesting pattern that shows similarities of a DDoS attack, but with far fewer resources. Is it possible that the visitor had malware on their computer? Any other ideas? Walter

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• Need help generating a core dump from apache segfault

  - by blockhead

  I have a script which intermittently returns a white screen of death in firefox and Error 324 (net::ERR_EMPTY_RESPONSE): Unknown error. chrome. When I try to access the script using a PHP HTTP client (like Zend_Http_Client), intermittently I get an exception (sorry I don't have the exact message on me at the moment). I suspect a segfault. This is further buttressed by the lines in my error log that look like this: [Thu Mar 18 16:03:02 2010] [notice] child pid 845 exit signal Segmentation fault (11) Now, I'm running RedHat, and I know that RedHat doesn't generate core dumps out-of-the-box. I followed the instructions here http://kbase.redhat.com/faq/docs/DOC-5353, but I'm not seeing any core dumps. How do I generate a core dump?

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• Intel Core i7-4960HQ vs. 4850HQ (Haswell) [on hold]

  - by Timothy R. Butler

  I'm looking at the new MacBook Pros and trying to decide between the Core i7-4960HQ (2.6 GHz) and i7-4850 (2.3 GHz). I've found some synthetic benchmarks comparing them, but I haven't found a lot of data, so I'd appreciate any pointers to good comparisons for the Haswell family (especially these two processors). My cursory analysis seems to suggest there isn't a huge gain from the extra 300 MHz. I'd like to determine not only whether this is generally true, but also to figure out if the gains that are made in performance come at too high of cost. Is the 2.6 going to be pushing the limits of what can fit in a thin laptop without overheating? I've looked at some of Intel's documentation, but have not been able to determine what the normal and maximum operating temperature differences are for the models. In the past, there have been times that Intel's fastest models in a given range ran especially hot and/or consumed significantly more power compared to slightly slower models. Do those concerns factor into the current generation?

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• Stop SQL Server services from conveniently

  - by MedicineMan

  I have a general use laptop. I use it for games, development, and web surfing. I've just installed SQL Server 2008 with Analysis, Reporting, and Error reporting, as well as any of the other options on the installer. I also have a default instance of SQL server as well as a named instance. When I'm not doing development, I'd like to shut down these services conveniently. I'm thinking that a batch file would be good. What are the commands to shut these services down and release the associated memory and resources? It appears that: net stop MSSQLSERVER seems to stop the MSSQLSERVER instance. What about the other services?

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• Dual HDMI input - HD Video Capture Card

  - by Shivan Raptor

  Any suggestion for HD video capture card? Here is my requirements: I need 2 HDMI input for 2 HD Camera the signal captured will be encoded with Adobe Live Encoder (does it support dual input sources? I do not require mixing of 2 sources) the encoding format will be H.264 (720p), then will be sent to Adobe Flash Media Interactive Server for LIVE broadcasting. http://www.blackmagic-design.com/products/intensity/ I found the one above online, but I am not sure about its performance, and it has only 1 HDMI input. If I plug 2 of them into my workstation, will it conflict with each other?

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• TvTuner as webcamera

  - by BarsMonster

  Hi, I have decent TVTuner which can capture both analog signal & HDMI. I am able to connect my camera and see output of it in realtime in VirtualDub. I want to be able to use it in Skype and other software which use webcams. The problem is that they only use first "videoinput" of my videodevice, but HDMI is 3rd, and there is no interface to switch (in Skype for example)... So could you suggest any "proxy" software which can take video from Tuner, and show as a webcam?

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• Can I be a wireless server WITHOUT offering internet?

  - by Kenny Hendrick

  I would like to pull into a truck stop and offer a folder of free documentaries to quell some of the ignorance LOL I run Linux ";-) Very happy to have made that switch by the way...and have an internal wireless in the laptop but my bus has an antenna on the roof which I connect via usb to create a wireless signal (this is the one I'd like to focus on since it will offer the most reach to all those truckers out there. My question is this. I'm running apache2 and have a bunch of videos tossed into the www folder and can access it locally and would like others that frown on paying to use the truckstops slow internet service and would like an alternative by simply logging onto me and getting the narrow content I offer freely without passwords and the like. Has anyone a good means of doing this? p.s. I've done this in the past but am getting old and forgetful (my crutch)

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• Can I get 4 screens running on an ATI Radeon HD 5700 series video card?

  - by Wayne

  I have successfully run 3 displays using the 5700, but i want to run a 4th screen off the HDMI Port. Mainly I would like it to Mirror the primary monitor onto the TV connected to the HDMI Port. Any help at all would be greatly appreciated. I can get a signal to it, i just have to disable one of my original 3 monitors. Im not willing to do that. So other than disabling one of my monitors, does anyone have any suggestions?

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• What's the point of Netgear's WNHDB3004 "3DHD WIRELESS HOME THEATER NETWORKING KIT"

  - by badp

  Here's a crude representation of what I've got at home: floor 2 INTERNETS ---- MODEM/ROUTER ---- MY COMPUTER | floor 1 WIFI REPEATER ---- stuff | floor 0 more stuff TELEVISION Now, as part of our sat tv subscription we can get an additional service if we connect our decoder (located by TELEVISION obviously) to the internet. What they suggest is buying a Netgear 3DHD WIRELESS HOME THEATER NETWORKING KIT holy shit isn't my bullshit-o-meter flying high right now from the general buzzwordyness of this thing. What does this thing actually do that our existing wireless-enabled routers don't do? What's the point of having a third wifi router in the same house, this time only for one television? If I do decide to plunge €99 for this, should I connect it to the wifi repeater (which does not provide AAA quality internet, at least for all gaming purposes) or to my modem/router (risking issues with low signal?).

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• Awstats messaging non existant user causing exim4 to go nuts

  - by Chris

  I've taken over managing a server set up by someone else now uncontactable, while managing to work out most faults / changes needed this one is stumping me. Awstats is running on the machine and sending messages via exim4 to a user every time it runs an update. The user account has been deleted and so the exim4 main log files are filling up with message delivery errors, which firstly hinders meaningful log analysis for anything else and secondly uses up quite a lot of space (it grew to 22GB unattended, panic!) I've been through all the conf files in /etc/awstats and can't seem to find any mention of this user account. Google just turns up results about how to use awstats to parse exim4 log files. So the questions is where is this setting (on debian) likely to be? Cheers in advance

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• Is this a graphics card failure?

  - by Alexander Lozada

  I own an older 32-bit Dell XPS 410 that I intended to use for gaming. Currently, I have a ATI Radeon 4000 series card installed, along with a Core 2 Duo and Ubuntu 12.10. I'm fairly certain that my problem is a GPU failure - but before I spend money on a new one, I want to make sure other components aren't the problem/if it would be cheaper just to buy a new PC. Here are my symptoms: Computer power button remains orange (usually green when successfully started.) A fan gets increasingly faster until powered off. Monitor remains black when started, receiving no signal. When powered on, the computer will power itself off near instantly, and then turn on again. If startup is successful, sometimes the screen will become jittered and unusable unless restarted. Is this just a GPU failure, or something more extensive like the motherboard?

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• Finding trends in multi-category data in Excel

  - by Miral

  I have an Excel spreadsheet that contains hundreds of rows of data that each represent a single sample in a larger population. Each row is divided into three columns that contain frequency counts of a specific type of thing. Together the three columns summed on a single row represent 100%, though each row will sum to a different value. What I'm most interested in are the proportions of each of these types (ie. percentages of each column relative to the sum of the three columns). I can easily calculate this on a per-row basis, but what I'm really interested in is trying to find an overall trend from the entire population. I don't really spend much time doing data analysis so the only thing I can think of trying is to create those percentage columns and then average them, but I'm sure there must be a better way to visualise this.

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• Creating Shared Wifi Connection on Windows 7 WITHOUT wep/wpa security?

  - by Duncan

  Ok, for some reason I just can't figure this out on Windows 7. Never had an issue with it on Windows XP, never tried in Vista. I realize that I need to create an Ad-Hoc setup which I can do. However I can't get it to share the wireless signal on my laptop. Even if I go into the adapter settings. I need (well, want) to connect my old Psion netBook to my home network and due to the wireless card, I can't have any form of security. Thanks in advance!

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• Digital audio input on Macbook?

  - by Ken

  I have: a Macbook (not Pro), don't know the exact model but it's a Core 2 Duo 2.0GHz and probably what Wikipedia calls the "Late 2006" or "Mid 2007" model a DVD player, region-free, that has "Coax and TosLink optical digital audio outputs" I want to make an MP3 of the audio track of some DVDs (for learning a new language), and I can't use the Macbook's built-in DVD drive because it's a different region (ugh!). I'm sure I can connect the DVD player to the Macbook with an analog audio cable. However, if it's possible I'd prefer to keep the signal digital. I'm not even positive if my old Macbook has digital audio in, and if so what I need to connect to it. (I've done plenty of home audio geeking, but always in analog!) Will a "Toslink cable" plus a "Toslink Female to Mini-Plug Male Adapter" (found on Amazon) let me connect my things together? It looks like the pieces will fit but I'd like to hear someone confidently knowledgeable on the matter before I buy something. Thanks!

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• X-FI optical output not being recognized.

  - by Luciano

  Hello there! I have an issue and I don't know what to do! I have a SoundBlaster X-FI Xtreme Gamer, which has a spdif mini-optical output. I have it connected to a home theater, via a toslink cable and an adapter to fit in the mini plug. It used to work perfectly, but now it doesn't anymore. There is light travelling through the cable, but the HT doesn't pick up the signal. The sound card of the motherboard also has an optical output (regular, not mini) and it works ok, so the cable and the HT are fine, I think. What else should I try? Thanks, Luciano. PS: I only enabled the onboard card for testing, but usually it's disabled to avoid any kind of conflicts. PPS: I'm using Windows 7 64bit with latest drivers of everything, but like I said. It used to work.

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• Is there any SMS/MMS server for LAN environment

  - by Chau Chee Yang

  I am looking for a solution to send SMS/MMS message to mobile device from desktop or browser in LAN environment. As such, it is most probably using TCP/IP protocol to transmit request/response. The server may attach to a GSM device with SIM card attached. An server application would then start accept the request from any LAN client and convey the SMS/MMS to one or more recipients. The server may log all requests for further traffic analysis in later stage. Is there any solution that able to perform what I describe here. Please advice.

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• Why do strace/truss sometimes 'fix' stuck processes?

  - by Emmel

  Sometimes you have a stuck process that's been stuck for a while, and as soon as you go to poke at it with strace/truss just to see what's going on, it gets magically unstuck and continues to run! So from merely 'observing' these programs have some impact in the running of the stuck programs .. what's happening here? Did strace (I guess via ptrace(2)?) send a signal, causing the program to cease blocking, or such? I've seen this several times -- most recently on Linux RHEL 4 (and a Perl script mucking with processes and doing some network IO in that case), but in a few other contexts as well. Unfortunately, I can't reproduce this, as it times to happen ... in times of crisis. But my curiosity remains. :-) Any elucidation appreciated.

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• Intermittent connection issues with atheros ar9285

  - by MrStatic

  I have an asus K50IJ which has an atheros ar9285 wifi chip. It has decided to start to randomly drop internet. Although the card doesn't seem to notice it has. It will show full signal instead of say 3 bars. I tried to look at the atheros site for the latest driver but they don't even offer driver downloads. I then checked the asus site and it doesn't even list that card in the downloads for this laptop. I run Windows 7 64bit. It will drop either every minute or once a day while I am doing intensive bandwidth usage and when I am just idling.

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• What all laptops can replace a compaq presario v2000's monitor ?

  - by Nishant

  I am planning to buy laptop for parts/repair from Ebay to replace by broken LCD of Compaq presario v2000 . I know the monitor is 14" WXGA and LTNW140-l01 model made by samsung . I have removed the LCD panel and I can see 2 cables , one power and other video signal Can I buy a 14.1" LAPTOP and fit to this ? 14.1 WXGA seems very common . Please can any one tell which all laptops can replace this monitor ? I know HP DV 1000 does ? Any advices would be great .

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• What is the S.M.A.R.T. page?

  - by Mads Skjern

  I've just listened to Steve Gibson talk about his SpinRite software, on the Security Now podcast episode 336 (transscript). At 33:20 he says: I can show and do show on the SMART page that sectors are being relocated and that errors are being corrected. That SMART analysis page sometimes scares people because it shows, wait a minute, this thing says we're correcting so many errors per megabyte. What is this SMART page? 1) Some information saved on the HD by SMART, that I can access with a SMART tool like smartmontools? 2) A page (tab) in his SpinRite software? In any case, can I see, in any way, what sectors are marked as bad, without using SpinRite? Preferably using smartmontools!

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• What decent audio recording interfaces are well supported in Windows 7 64bit?

  - by labradort

  I currently have an Audigy 2 ZS Platinum. It permits me to insert a 1/4" jack line from bass guitar and play along with pre-recorded piano music. This worked fine under Windows XP. I am moving to Windows 7 64 bit (dual boot for now), and Creative may not develop fully working drivers for this component. Looking around, I don't see Windows 7 support mentioned at product web sites from E-MU, Roland, M-Audio, etc. Even at Creative, the posting of available drivers for Windows 7 is deceptive, as they do not adequately support recording (latency, distortion). My local music store shrugs and says to stay with Win XP. In some cases, the Vista drivers will work in Win 7. So I need real world feedback on this. I should also mention I'm not impressed with available USB interfaces - they have too low of a signal to noise ratio for my purposes. That leaves PCI, or possibly firewire devices (never tried one yet).

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• Monitoring and terminating a hanged process in Linux

  - by Yoav

  Hi, I'm writing a script that runs many simultaneous processes that run the "dig" command. Once in a while (relatively rare, but happens in every run since I run dig many times) the dig command hangs with 0% CPU. Therefore, my script never terminates. I've created a monitor process for each dig command I run, which terminates it after a while, but I was wondering if there isn't a simpler and more efficient way to run a process with a pre-determined "expiration date", i.e. if the process runs more then X seconds it gets a signal that terminates it. Thanks!

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• Security and Windows Login

  - by Mimisbrunnr

  I'm not entirely sure this is the right place for the is question but I cannot think of another so here goes. In order to login to the windows machines at my office one must press the almighty CTRL-ALT-DELETE command combo first. I, finding this very frustrating, decided to look into why and found claims from both my sys and Microsoft stating that it's a security feature and that "Because only windows could read the CTRL-ALT-DELETE it helped to ensure that an automated program cannot log in. Now I'm not a master of the windows operating system ( as I generally use *nix ) but I cannot believe that "Only windows can send that signal" bull. It just doesn't sit right. Is there a good reason for the CTRL-ALT-DELETE to login thing? is it something I'm missing? or is it another example of antiquated legacy security measures?

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