On Sun 2007-12-09 22:50:07, Rafael J. Wysocki wrote:
> On Sunday, 9 of December 2007, Pavel Machek wrote:
> > On Sun 2007-12-09 22:31:40, Rafael J. Wysocki wrote:
> > > On Sunday, 9 of December 2007, Pavel Machek wrote:
> > > > On Mon 2007-12-03 22:54:23, Rafael J. Wysocki wrote:
> > > > > On Monday, 3 of December 2007, Toralf Förster wrote:
> > > > > > Hhm,
> > > > > >
> > > > > > in general it seems to be a regression of kernel 2.6.23 with suspend/hibernate
> > > > > > if a user mode linux image is runnning.
> > > > > >
> > > > > > With previous kernel versions (tested gentoo-sources-2.6.22-r9 and
> > > > > > gentoo-sources-2.6.21-r4) I've no problem to either suspend or to hibernate the
> > > > > > ThinkPad T41.
> > > > > >
> > > > > > However with gentoo-sources-2.6.23-r3 the system didn't neither
> > > > > > suspend nor hibernate. The good news is that the system doesn't hang :-)
> > > > >
> > > > > Please file a bug report at
> > > > > http://bugzilla.kernel.org/enter_bug.cgi?product=Power%20Management
> > > > > against Hibernation/Suspend and add my address to the report's CC list.
> > > >
> > > > I smell refrigerator problem; can you suspend if you SIGSTOP your uml,
> > > > first?
> > >
> > > That might be, but the issue is apparently fixed in 2.6.24-rc and I'm
> > > struggling to figure out how the !@#$%^ (please see
> > > http://bugzilla.kernel.org/show_bug.cgi?id=9501).
> >
> > No idea... I'm glad its fixed :-). Maybe someone fixed uninterruptible
> > sleep somewhere in ptrace...
>
> Yeah, but we should find a -stable fix, if possible.
I do not think this bug is severe enough to warrant stable fix. It
does not eat data, and it should be easy to SIGSTOP and retry suspend.
Pavel
--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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