Re: Priorities

[Sarton O'Brien <bsd-xen%roguewrt.org@localhost>]

On Mon, 12 May 2008 11:02:02 pm matthew sporleder wrote:
> On Sun, May 11, 2008 at 11:31 PM, Sarton O'Brien 
> <bsd-xen%roguewrt.org@localhost> 
wrote:
> >  With regards to apache, I'm seeing this:
> >
> >  [Mon May 12 13:16:35 2008] [notice] child pid 12803 exit signal 
Segmentation
> >  fault (11)
> >  [Mon May 12 13:16:41 2008] [notice] child pid 21752 exit signal 
Segmentation
> >  fault (11)
> >
> >  Under:
> >
> >  NetBSD www.local 4.99.62 NetBSD 4.99.62 (XEN3_DOMU) #0: Tue May  6 
13:20:07
> >  EST 2008  
> > root%mx0.cre.local@localhost:/usr/obj/sys/arch/i386/compile/XEN3_DOMU 
i386
> >
> >  And have been since at least 4.99.60.
> >
> >  I'm not sure of the best way to give any useful information though.
> >
> >  It's definitely load based as an identical system has not had an error 
yet.
> >
> 
> 
> Can you try getting core dumps from apache in those situations?  I had
> a similar situation on solaris at one point and had a real time
> messing with CoreDumpDirectory (apache) and system core settings to
> try and keep all the child dumps around.
> 
> I expect that you have some module doing something nasty and it should
> show up in the core.


Hmmm, having problems trying to obtain a child dump. If I kill -11 the root 
process it dumps, but killing the children only results in the:

exited on signal 11 (core not dumped, err = 1)

message. Any idea on how to tell apache (2.2) to dump core for children?

Is there a way to translate this:

http://httpd.apache.org/dev/debugging.html#gcore

to ktruss or strace?

I mean the command parameters for truss, not the actual script :)

Thanks,

Sarton