Re: 2.6.39-rc4+: oom-killer busy killing tasks

[Dave Chinner <david@fromorbit.com>]

On Thu, Apr 28, 2011 at 10:30:47AM -0700, Christian Kujau wrote:
> Hi David,
> 
> sorry for the late response:
> 
> On Wed, 27 Apr 2011 at 20:28, Dave Chinner wrote:
> > hmmmm. Speaking of which - have you changed any of the XFS tunables
> > in /proc/sys/fs/xfs/ on your machine (specifically
> > xfssyncd_centisecs)?
> 
> No, I did not change anything underneath /proc/sys/fs/xfs.
>  
> > Not easy because there are tree-wide changes that need to be
> > preserved (e.g. block layer plugging changes) while others around it
> > would need to be reverted....
> 
> Yeah, I noticed. I wanted to do something like this:
> 
>   $ for c in `git log --pretty=oneline --no-merges v2.6.38..v2.6.39-rc2 fs/xfs | awk '{print $1}'`; do
>        git revert $c
>     done
> 
> ...but this broke on the 1st or 2nd commit because of unresolved changes.
> 
> Now I'm in the middle of another bisect attempt, trying to reproduce but 
> Im getting (probably totally unrelated) warnings here:

Did you read the email that pointed to CONFIG_TINY_RCU as the
ptotential source of the problem? Can you change to CONFIG_TREE_RCU
and see if the problem goes away?

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com