Re: Linux 3.0.92

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On Tue, Aug 20, 2013 at 01:08:28PM -0700, Linus Torvalds wrote:
> On Tue, Aug 20, 2013 at 1:00 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> >>
> > Does this patch have to be reverted in 3.10 as well ? Linus' e-mail seems to
> > suggest it, but Shuah didn't see the problem there.  I ran a quick test with
> > 3.10.8 on an x86 system and did not see a problem either, at least not
> > immediately.
> 
> Do you run with lockdep?
> 
> The patch causes a _possibility_ of a deadlock, but unless you have
> lockdep enabled, you're almost guaranteed to not actually ever see
> that deadlock in practice.
> 
I have CONFIG_LOCKDEP_SUPPORT enabled. Guess I need CONFIG_LOCKUP_DETECTOR as
well. I'll give it a try.

Guenter
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