Tracking all signals how to

Tracking all signals how to

[Mahmoud Hanafi]

We have random nodes experience killing of most daemons( syslog, ssh, 
cron, etc). All these daemons report getting a sigkill or sigterm.

My question.... Is there a way to log all signals and the originator 
pid/proc name.

Thanks,
Mahmoud

Re: Tracking all signals how to

[Bart Van Assche]

On Thu, Jun 12, 2008 at 11:37 PM, Mahmoud Hanafi <mhanafi@csc.com> wrote:
> We have random nodes experience killing of most daemons( syslog, ssh,
> cron, etc). All these daemons report getting a sigkill or sigterm.
>
> My question.... Is there a way to log all signals and the originator
> pid/proc name.

Did you already have a look in the kernel messages to make sure it's
not an OOM problem ? I do not know of any Linux software that sends
random signals to random processes.

Bart.

Re: Tracking all signals how to

[Mahmoud Hanafi]

Yes I have verified that it was the OOM killer. We always get lots of
messages in the conole log when the oom killer starts. This is a very odd
problem as there are no logs showing what is doing the killing.

May I can wrap the kill() systemcall?


Computer Sciences Corporation
Registered Office: 3170 Fairview Park Drive, Falls Church, Virginia 22042,
USA
Registered in Nevada, USA No: C-489-59

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------

This is a PRIVATE message. If you are not the intended recipient, please
delete without copying and kindly advise us by e-mail of the mistake in
delivery.
NOTE: Regardless of content, this e-mail shall not operate to bind CSC to
any order or other contract unless pursuant to explicit written agreement
or government initiative expressly permitting the use of e-mail for such
purpose.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------




                                                                           
             "Bart Van Assche"                                             
             <bart.vanassche@g                                             
             mail.com>                                                  To 
                                       Mahmoud Hanafi/DEF/CSC@CSC          
             06/13/2008 01:45                                           cc 
             AM                        linux-kernel@vger.kernel.org        
                                                                   Subject 
                                       Re: Tracking all signals how to     
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




On Thu, Jun 12, 2008 at 11:37 PM, Mahmoud Hanafi <mhanafi@csc.com> wrote:
> We have random nodes experience killing of most daemons( syslog, ssh,
> cron, etc). All these daemons report getting a sigkill or sigterm.
>
> My question.... Is there a way to log all signals and the originator
> pid/proc name.

Did you already have a look in the kernel messages to make sure it's
not an OOM problem ? I do not know of any Linux software that sends
random signals to random processes.

Bart.