Re: Deadlocks

[Phil Oester <kernel@linuxace.com>]

I always apply the orphaned expectations patch (I'm the one who tracked that
one down and submitted the original patch ;-)

That is not the problem here -- this is a locking bug as shown by the SysRq
output.  I'm temporarily running 2.6.6 without SMP support to work around
it.

Phil

On Thu, Jun 10, 2004 at 10:07:16AM +0200, Jozsef Kadlecsik wrote:
> On Wed, 9 Jun 2004, Phil Oester wrote:
> 
> > For the past 3 months I've been experiencing deadlocks on some heavily
> > used gateway/firewall boxes which started after upgrading from 2.4.20.
> >
> > I can confirm that moving back to 2.4.20 stops the hangs, moving to 2.4.21
> > (or any kernel after that) makes them return.  I am in the process of testing
> > out each individual 2.4.21-pre to find out where exactly the problem is.
> >
> > In the interim, I've collected some SysRq output which may help in the
> > analysis.  Below are two separate lockups on a 2.6.6 kernel.  Anyone have
> > any bright ideas?
> 
> Could you try out the 05_linux-2.4.26-orphaned_expect.patch or
> 05_linux-2.6.6-orphaned_expect.patch depending on the kernel
> from pom-ng/updates? I think that is the fix for your lockups.