On Fri, 31 Jan 2014, David Rientjes wrote:

On Fri, 31 Jan 2014, dormando wrote:

quoted

quoted

CONFIG_SLUB_DEBUG_ON will definitely be slower but can help to identify
any possible corruption issues.

I'm wondering if you have CONFIG_MEMCG enabled and are actually allocating
slab in a non-root memcg?  What does /proc/self/cgroup say?

/proc/self/cgroup is empty on these hosts. CONFIG_MEMCG is enabled though.

It _looks_ like the cmpxchg_double() so seeing if there is anything else
funny going on with CONFIG_SLUB_DEBUG_ON would definitely be helpful;
otherwise, try using CONFIG_SLAB is Eric suggested and seeing if the
problem goes away.

chpxchg_double()? that's not related to the 62713c4b fix right?

I'll see what I can do.. it's going to take a long time to iterate on this
though.

Thanks for the suggestions!