Re: list corruption in the last few days. (block ? crypto ?)

From: Dave Jones
Date: Fri Aug 05 2011 - 13:16:23 EST


On Fri, Aug 05, 2011 at 12:01:38PM -0500, Christoph Lameter wrote:
> On Fri, 5 Aug 2011, Dave Jones wrote:
>
> > On Fri, Aug 05, 2011 at 11:47:56AM -0500, Christoph Lameter wrote:
> > > On Fri, 5 Aug 2011, Dave Jones wrote:
> > >
> > > > Not sure if you were addressing my original report (quoted above), or the networking
> > > > related report in this part of the thread. But anyway, I had it turned on (as well as just about
> > > > every other debugging option). I didn't see anything output from it though,
> > > > just the LIST_DEBUG warnings.
> > >
> > > But CONFIG_SLUB_DEBUG_ON was off? If slab debugging was on then this could
> > > be an issue with full slab list management instead of partial lists.
> >
> > $ grep SLUB_DEBUG_ON .config
> > CONFIG_SLUB_DEBUG_ON=y
>
> Argh another debugging code issue. Anyone who sees this please verify that
> it also occurs with debugging off. I ran this code for 9 months in
> various configs but only sporadically with debugging support since that
> switches the lockless stuff.

This started turning up immediately as soon as it got merged to mainline.
Which leads me to believe no-one is running -next with debugging on either.
Perhaps we should force debugging on for a week once per release cycle.

Dave

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