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Re: [Linux-cluster] problem with deadlocked processes (D)



Are these two kernel sysctl parameters recommended to be enabled all the time, particularly with production GFS/clustered systems, or only for dev/test systems for debugging purposes?  Thanks.


On Wed, 2007-04-04 at 09:41 -0400, Lon Hohberger wrote:
On Wed, Apr 04, 2007 at 09:38:39AM -0400, Lon Hohberger wrote:
> On Wed, Apr 04, 2007 at 02:17:32PM +0200, Peter Sopko wrote:
> > 
> > any idea where to start with debuging and looking for the reason this is
> > happening ? I find it quit weird, that for more than 6 month it is ok a now
> > in a sudden it starts doing this.....
> 
> sysreq-t output would be wonderful, along with the kernel-version you
> have, cman-kernel, dlm-kernel, and gfs-kernel versions :)

echo 1 > /proc/sys/kernel/sysrq
echo t > /proc/sysrq-trigger

If logging is set up, syslog should capture it and put it in
/var/log/messages

-- Lon

Robert Hurst, Sr. Caché Administrator
Beth Israel Deaconess Medical Center
1135 Tremont Street, REN-7
Boston, Massachusetts   02120-2140
617-754-8754 ∙ Fax: 617-754-8730 ∙ Cell: 401-787-3154
Any technology distinguishable from magic is insufficiently advanced.

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