Re: [BISECTED, REGRESSION] Successful resume from suspend but freezes after I/O

From: Rafael J. Wysocki
Date: Mon Dec 28 2009 - 18:40:35 EST


On Monday 21 December 2009, Volker Lanz wrote:
> On Tuesday 08 December 2009 02:13:20 Volker Lanz wrote:
> > On Tuesday 08 December 2009 00:05:11 Yinghai Lu wrote:
> > > the updated e820 table is the same to the one for 2.6.29...
> > >
> > > so could be some other patch cause the problem.
> > >
> > > please check if revert
> > > 2547089ca2db132e307ef68848ba029a8ec2f341
> > > could help.
> >
> > I reverted to one commit before that, which would be
> > eaa959df299157e2640fcb3321537501b6afd9e6
> > if I am not mistaken. I built and booted that kernel and could reproduce
> > the freeze with it (TBH this was not surprising to me, because I
> > originally pinned down the problem by bisecting the commits and this
> > commit is after the one bisecting found. Am I missing a detail here?)
> >
> > But strangely enough the freeze this time produced an oops before it locked
> > the machine. I couldn't save it to a file but took a picture. The
> > screenshot is here:
> > http://banane.volker-lanz.de/08122009013.jpg
> > The oops is _not _reproducable. After a reboot with this same kernel, a
> > suspend/resume cycle and some I/O the machine locks again without showing
> > the oops.
> >
> > Volker
> >
>
> Any news on this problem? Anything else I can do to help debug the situation?
> The prospect of being confined to distros with kernels < 2.6.29 for the next
> couple of years on this machine worries me, obviously.

I have created a Bugzilla entry for this bug at
http://bugzilla.kernel.org/show_bug.cgi?id=14921

Please use it for further tracking of this bug.

Rafael
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