Re: linux-next: boot problem with next-20120607

Andrew Morton
2012-06-07T22:05:51Z

On Thu, 7 Jun 2012 13:53:20 +1000
Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi Andrew,
>
> My boot of next-20120607 in PowerPC produces lots of these warnings:
>
> BUG: Bad rss-counter state mm:c000000278508000 idx:0 val:-27
> BUG: Bad rss-counter state mm:c000000278284000 idx:0 val:-27
> BUG: Bad rss-counter state mm:c000000279e13000 idx:0 val:-27
> BUG: Bad rss-counter state mm:c000000278285400 idx:0 val:-27
>
> And so on (with different mm, idx and val numbers). Searching showed me
> commit "mm: correctly synchronize rss-counters at exit/exec" which seems
> to be there to fix this exact problem?

Well that's a worry. Are you really sure
mm-correctly-synchronize-rss-counters-at-exit-exec.patch was applied at
the time?

There's been an extended amount of inconclusive waffling on that patch,
but I thought it concerned the best way to fix it, rather than
*whether* it fixes it.