Apache segfaulting

Im seeing this in my Apache error logs:

[Thu Nov 30 18:28:49 2006] [notice] child pid 4278 exit
signal Segmentation fault (11)
[Thu Nov 30 18:28:50 2006] [notice] child pid 4291 exit
signal Segmentation fault (11)
[Thu Nov 30 18:28:52 2006] [notice] child pid 4285 exit
signal Segmentation fault (11)
[Thu Nov 30 18:28:54 2006] [notice] child pid 4289 exit
signal Segmentation fault (11)
[Thu Nov 30 18:28:56 2006] [notice] child pid 4293 exit
signal Segmentation fault (11)
[Thu Nov 30 18:28:58 2006] [notice] child pid 4292 exit
signal Segmentation fault (11)
[Thu Nov 30 18:29:00 2006] [notice] child pid 4284 exit
signal Segmentation fault (11)
[Thu Nov 30 18:29:02 2006] [notice] child pid 4283 exit
signal Segmentation fault (11)
[Thu Nov 30 18:29:04 2006] [notice] child pid 4282 exit
signal Segmentation fault (11)
[Thu Nov 30 18:29:06 2006] [notice] child pid 4281 exit
signal Segmentation fault (11)
[Thu Nov 30 18:29:07 2006] [notice] child pid 4294 exit
signal Segmentation fault (11)

Any idea what might be causing this? Also, shouldn't there
be a core dump
somewhere I can debug with? Where does Apache dump core
dumps?



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A
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On Thu, 2006-11-30 at 17:46 -0500, A. Khattri wrote:
> 
> Im seeing this in my Apache error logs:
> 
> [Thu Nov 30 18:28:49 2006] [notice] child pid 4278 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:28:50 2006] [notice] child pid 4291 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:28:52 2006] [notice] child pid 4285 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:28:54 2006] [notice] child pid 4289 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:28:56 2006] [notice] child pid 4293 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:28:58 2006] [notice] child pid 4292 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:29:00 2006] [notice] child pid 4284 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:29:02 2006] [notice] child pid 4283 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:29:04 2006] [notice] child pid 4282 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:29:06 2006] [notice] child pid 4281 exit
signal Segmentation fault (11)
> [Thu Nov 30 18:29:07 2006] [notice] child pid 4294 exit
signal Segmentation fault (11)
> 
> Any idea what might be causing this? Also, shouldn't
there be a core dump
> somewhere I can debug with? Where does Apache dump core
dumps?
> 
> 
> 
> -- 
> A
If you have kernel 2.4 you should upgrade to 2.6

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A. Khattri wrote:
> 
> Im seeing this in my Apache error logs:
> 
> [Thu Nov 30 18:29:07 2006] [notice] child pid 4294 exit
signal Segmentation fault (11)
> 
> Any idea what might be causing this? Also, shouldn't
there be a core dump
> somewhere I can debug with? Where does Apache dump core
dumps?

There's always the usual suspects such as bad memory or
overheating. There's 
also the possibility of stupid CFLAGS. I've also seen perl
and mod_php 
conflicting causing a segfault, but the only cause of that
that I'm aware of was 
fixed a while ago.

-- 
Andrew Gaffney                            http://dev.gentoo.or
g/~agaffney/
Gentoo Linux Developer                                  
Installer Project
Today's lesson in political correctness:      "Go
asphyxiate on a phallus"
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Biru Ionut wrote:
> If you have kernel 2.4 you should upgrade to 2.6

Do you have any reasoning to go along with that statement?
Last I heard, the 2.4 
kernels don't cause random segfaults.

-- 
Andrew Gaffney                            http://dev.gentoo.or
g/~agaffney/
Gentoo Linux Developer                                  
Installer Project
Today's lesson in political correctness:      "Go
asphyxiate on a phallus"
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On Thu, 2006-11-30 at 17:57 -0600, Andrew Gaffney wrote:
> Biru Ionut wrote:
> > If you have kernel 2.4 you should upgrade to 2.6
> 
> Do you have any reasoning to go along with that
statement? Last I heard, the 2.4 
> kernels don't cause random segfaults.
> 
> -- 
> Andrew Gaffney                            http://dev.gentoo.or
g/~agaffney/
> Gentoo Linux Developer                                 
 Installer Project
> Today's lesson in political correctness:      "Go
asphyxiate on a phallus"
epoll_create() does not exists in kernel 2.4 and apache2
need that.


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Biru Ionut wrote:
> epoll_create() does not exists in kernel 2.4 and
apache2 need that.

It's my understanding that only Apache 2.2 utilizing the
mpm-event httpd 
server requires epoll. There are some reports that recent
binary builds 
of Apache has some dependencies on epoll, specifically
Debian, but if 
you're building libapr and Apache from source I'd expect
them to be 
smart enough to figure out what is on the system.

kashani
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On Fri, 1 Dec 2006, Biru Ionut wrote:

> If you have kernel 2.4 you should upgrade to 2.6

I *am* running 2.6.

I am running Apache 1.x so all the comments about Apache2
dont apply.

Also I rebuilt apache, all of my modules, PHP too.


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On Thu, 30 Nov 2006, Andrew Gaffney wrote:

> There's always the usual suspects such as bad memory or
overheating. There's
> also the possibility of stupid CFLAGS. I've also seen
perl and mod_php
> conflicting causing a segfault, but the only cause of
that that I'm aware of was
> fixed a while ago.

I removed the hardnedphp USE flag from PHP and all is well
now - go
figure...


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