Re: [regression] Ideapad S10-3 does not wake up from suspend (Re:[PATCH v2 2/2] x86: don't unmask disabled irqs when migrating them)

From: Serge E. Hallyn
Date: Thu Sep 01 2011 - 23:01:16 EST


Quoting Jonathan Nieder (jrnieder@xxxxxxxxx):
> Hi Dave,
>
> Dave Hansen wrote:
>
> > I'm seeing the exact same symptoms on my S10-3, fwiw. They definitely
> > don't happen when intel_idle is compiled out or when
> > intel_idle.max_cstate=0 is specified on the kernel command-line.
>
> Lars reminds me[1] that the kernel he was testing already had the
> intel_idle driver compiled out, so you're probably seeing a different
> (possibly related) bug. (By the way, Lars, it is fine to communicate
> with lkml directly. :) The people there don't bite.)

Right, over the past year or so this has been hit or miss. Sometimes
intel_idle.max_cstate=0 would fix it. Sometimes (like today) not. Ever
since the problems have started, using intel_idle has not worked once,
but disabling it is not 100% reliable. And when it doesn't work, it
doesn't work at all until I get a new kernel.

Sorry, not very helpful.

-serge
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