Ubuntu :: Crashed 5 Times In The Last Hour And A Half - Constantly ?

Nov 29, 2010

I want to know what other people have done to stop their computers from crashing. My main computer has now crashed 5 times in the last hour and a half.

I am not using Compiz, and to the best of my knowledge it is uninstalled. I try not to use flash with the internet. I am using the 64 bit version of 10.04, because I want to make use of my 8GB of RAM.

The computer crashes constantly. Constantly. Usually when I am using it. I can leave it on for days without a problem; but as soon as I need to get work done, it starts crashing.

Some specs:
ASUS P7P55D Pro motherboard
Intel i5-750 processor.
evga GTS 250 video card with NVIDIA drivers (uptodate)
Ubuntu 10.04 64 bit

I need a gameplan to make this computer stop crashing. how to start diagnosing the causes of these crashes.

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I manage an Apache 2.2.3 web server. It stops working several times an hour, so I removed the semaphores and restarted it as a workaround, but I dont know what is causing this. Lately i've noticed that the workaround is not working at all.

0 */1 * * * /usr/bin/ipcs -s | grep apache | perl -e 'while (<STDIN>) { @a=split(/s+/); print `ipcrm sem $a[1]`}'
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What is the mutex message telling me. To be honest, I don't know much about semaphores nor how they work. You can see after the semaphore issue, that Apache is sent the SIGTERM signal. I have seen other posts on this topic, but not explicitly with Linux 2.6.22 and Apache 2.2.3 with a description of the issue and a permanent fix.

[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex


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Similarly, I have a digital clock widget that shows GMT + 5.5 hours and I need to change that to 12 hour format as well.

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Note that my card works fine with XP on same computer.

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