Re: a whole bunch of crashes since todays -mm merge.

[Dave Jones]

On Thu, Jun 07, 2012 at 06:06:27PM -0700, Linus Torvalds wrote:
 > On Thu, Jun 7, 2012 at 6:00 PM, Dave Jones <davej@xxxxxxxxxx> wrote:
 > >
 > > Or I might just be getting lucky..
 > 
 > Do you have SPLIT_RSS_COUNTING enabled?

I don't think so ? I have CONFIG_SPLIT_PTLOCK_CPUS=999999,
so it looks like that never gets defined unless I'm missing something obvious.
 
 > Do you see multiple "BUG: Bad rss-counter state" messages?

no
 
 > The sync_mm_rss() thing could basically overwrite an already-free'd
 > piece of memory, so it could cause pretty random stuff. But I think
 > you need to be unlucky to hit the window.

the 8169 debug stuff I was trying to run used the function tracer. Could that have
widened the window ?

	Dave

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