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SubjectRe: [REGRESSION]: hibernate/sleep regression w/ bisection
Hello, Andrew.

On Thu, Nov 03, 2011 at 01:46:19PM -0500, Andrew Watts wrote:
> On Thu, Nov 03, 2011 at 08:59:56AM -0700, Tejun Heo wrote:
> > Andrew, just in case, can you please double check that you're
> > reverting only that single commit (not all the ones afterwards) and
> > the test results? If they're all okay, can you please trigger the
> > problem, wait a while, trigger sysrq-t and attach the kernel log?
>
> Hi Tejun.
>
> I am only reverting 8ee294cd9def0004887da7f44b80563493b0a097 though I first
> revert part of 1d64b655dc083df5c5ac39945ccbbc6532903bf1 so it reverts
> cleanly.
>
> I am very sure of my test results; normally I get 4-5 bad resumes on a 20
> hibernate loop and get no bad resumes with the commit reverted. I have
> been very thorough in my testing to ensure I am not generating false
> positives or false negatives (repeating the loops many times).

Thanks. Yeah, this is odd & interesting.

> Below is the output you asked for (sysrq t).
>
> Thanks.
>
> ~ Andy
>
> ======================
>
>
> kernel: [ 345.226523] SysRq : Show State
> kernel: [ 345.226531] task PC stack pid father
> kernel: [ 345.226535] init S f4a47b68 5488 1 0 0x00000000
> kernel: [ 345.226765] kthreadd S 00000000 7172 2 0 0x00000000

This is missing all stack traces. Can you please turn on
FRAME_POINTER and adjust log level such that all stack dumps are
included too?

Thank you.

--
tejun


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