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SubjectRe: [PATCH 1/2] MM: Make Page Tables Relocatable -- conditional flush
On Thu, Apr 10, 2008 at 1:26 PM, Ross Biro <rossb@google.com> wrote:
> rcu cleanup. There still appears to be a race, but it looks like it's
> in the rcu code. If I reduce the migration code to
>
> down_interruptible()
> synchronize_rcu()
> up()
>
> I still get a crash about once every 1-2 million times through the
> loop. If the race is in my code, it's something stupid. Otherwise
> it's elsewhere and my code won't make things anyworse.

This race appears to have been fixed between 2.6.25rc5-mm1 and
2.6.25rc8-mm1. I've been running the later over night and have over 7
million iterations with out a crash.

Ross


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