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Re: AW: Webserver crashes sometimes - don't know why

Maxim Dounin
January 07, 2013 10:50PM
Hello!

On Mon, Jan 07, 2013 at 12:45:52PM +0100, Patrik Kernstock wrote:

> I just found something interest in "dmesg" log:
> [5294633.862284] __ratelimit: 20 callbacks suppressed
> [5294633.862288] nginx[20568]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a1a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294634.659735] nginx[20569]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a0a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294634.818078] nginx[20571]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a0a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294634.819429] nginx[20581]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a0a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294634.920149] nginx[20567]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a0a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294635.313816] nginx[20589]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a0a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294635.402682] nginx[20590]: segfault at aa ip 00007fdc5a44eb41 sp
> 00007fff0260a0a8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294682.926163] nginx[20596]: segfault at 4a ip 00000000004459df sp
> 00007fff0260a0f0 error 4 in nginx[400000+a3000]
> [5294685.155117] nginx[20595]: segfault at 4a ip 00000000004459df sp
> 00007fff0260a280 error 4 in nginx[400000+a3000]
> [5294686.158466] nginx[21276]: segfault at 4a ip 00000000004459df sp
> 00007fff0260a130 error 4 in nginx[400000+a3000]
> [5294688.683947] nginx[21313]: segfault at 1 ip 00007fdc5a44eb41 sp
> 00007fff0260a0c8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
> [5294695.987059] nginx[21361]: segfault at 1193d ip 00007fdc5a44eb41 sp
> 00007fff0260a0c8 error 6 in libc-2.11.3.so[7fdc5a3cf000+159000]
>
> Seems to be a error in libc...

It's highly unlikely to be an error in libc, segfaults in libc
usually heppen when libc functions are called with incorrect
arguments.

You need to obtain coredump and provide a backtrace, see
http://wiki.nginx.org/Debugging for details, in paricular these two
sections:

http://wiki.nginx.org/Debugging#Core_dump
http://wiki.nginx.org/Debugging#Asking_for_help

Please note: it would be good idea to make sure you are able to
reproduce the problem without any 3rd party modules compiled in.

--
Maxim Dounin
http://nginx.com/support.html

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Subject Author Posted

Webserver crashes sometimes - don't know why

Patrik Kernstock January 07, 2013 02:06AM

RE: Webserver crashes sometimes - don't know why

Lukas Tribus January 07, 2013 04:06AM

AW: Webserver crashes sometimes - don't know why

Patrik Kernstock January 07, 2013 04:20AM

RE: AW: Webserver crashes sometimes - don't know why

Lukas Tribus January 07, 2013 04:38AM

AW: AW: Webserver crashes sometimes - don't know why

Patrik Kernstock January 07, 2013 04:42AM

RE: AW: AW: Webserver crashes sometimes - don't know why

Lukas Tribus January 07, 2013 04:56AM

AW: AW: AW: Webserver crashes sometimes - don't know why

Patrik Kernstock January 25, 2013 08:04PM

AW: AW: Webserver crashes sometimes - don't know why

Patrik Kernstock January 07, 2013 06:48AM

RE: AW: AW: Webserver crashes sometimes - don't know why

Lukas Tribus January 07, 2013 05:50PM

Re: AW: Webserver crashes sometimes - don't know why

Maxim Dounin January 07, 2013 10:50PM

AW: AW: Webserver crashes sometimes - don't know why

Patrik Kernstock January 08, 2013 11:24PM

RE: AW: AW: Webserver crashes sometimes - don't know why

Lukas Tribus January 09, 2013 03:26PM



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