Re: bad rss-counter message in 3.14rc5

From: Dave Jones
Date: Tue Mar 11 2014 - 10:28:42 EST


On Tue, Mar 11, 2014 at 05:41:58PM +0400, Cyrill Gorcunov wrote:
> On Tue, Mar 11, 2014 at 09:23:05AM -0400, Sasha Levin wrote:
> > >>
> > >>Ok, with move_pages excluded it still oopses.
> > >
> > >Dave, is it possible to somehow figure out was someone reading pagemap file
> > >at moment of the bug triggering?
> >
> > We can sprinkle printk()s wherever might be useful, might not be 100% accurate but
> > should be close enough to confirm/deny the theory.
>
> After reading some more, I suppose the idea I had is wrong, investigating.
> Will ping if I find something.

I can rule it out anyway, I can reproduce this by telling trinity to do nothing
other than mmap()'s. I'll try and narrow down the exact parameters.

Dave

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