Re: [Regression] firewire_ohci causes system resume to fail

From: Rafael J. Wysocki
Date: Thu Dec 16 2010 - 18:48:41 EST


On Sunday, December 05, 2010, Stefan Richter wrote:
> On Dec 05 Stefan Richter wrote:
> > On Dec 05 Rafael J. Wysocki wrote:
> > > There is a regression I can reproduce 100% of the time on a AMD-based desktop
> > > box that resume from hibernation (or suspend) fails because of the firewire_ohci
> > > module. The box just hangs when firewire_ohci resume runs, apparently, and it
> > > is sufficient to do:
> > >
> > > # echo devices > /sys/power/pm_test
> > > # echo disk > /sys/power/state
> > >
> > > to reproduce the issue.
> >
> > Do you have anything attached to the FireWire bus? What controller do
> > you have?
>
> I just now tested the above on an Intel Mac mini, running
> unmodified 2.6.37-rc4 x86-32, without and with a camera on the FireWire
> port, and could not reproduce the problem. I also got an AMD based PC
> here with an array of different FireWire controllers which I shall make
> available to the same test...

I'm unable to reproduce the problem with 2.6.37-rc6, so presumably this was
a temporary glitch with the particular kernel build.

Thanks,
Rafael
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