From: Johannes Stezenbach <js@sig21.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: venkatesh.pallipadi@intel.com, rjw@sisk.pl,
linux-kernel@vger.kernel.org, davej@redhat.com, pavel@ucw.cz,
linux-acpi@vger.kernel.org, lenb@kernel.org, arjan@infradead.org,
tglx@linutronix.de
Subject: Re: 2.6.30: hibernation/swsusp lockup due to acpi-cpufreq
Date: Wed, 17 Jun 2009 00:44:31 +0200 [thread overview]
Message-ID: <20090616224431.GA14186@sig21.net> (raw)
In-Reply-To: <20090616140923.eb3ae6e3.akpm@linux-foundation.org>
On Tue, Jun 16, 2009 at 02:09:23PM -0700, Andrew Morton wrote:
>
> Right, so it's the suspend-must-disable-local-interrupts thing. Again.
> create_image()'s local_irq_disable().
>
> It was wrong to call work_on_cpu() with lcoal interrupts disabled, and
> it's now wrong to call smp_call_function_single() with local interrupts
> disabled. It's just that smp_call_function_single() warns while
> work_on_cpu() didn't.
>
> That all explains the warning But afaik we still don't know why your
> machine actually failed. Perhaps it is a side-efect of emitting the
> warning when the console is in a weird state?
smp_call_function_single() enables irqs and hibernate doesn't like that?
BTW, I have no other UP machine to test with, but I reported
in another thread that a !SMP kernel (or a SMP kernel
with maxcpus=0 parameter) does not boot at all on
my destop machine, see
http://lkml.org/lkml/2009/6/12/468
No idea if I should be worried about this since the
SMP kernel now works fine, another hibernate problem
was solved in
http://lkml.org/lkml/2009/6/14/156
Johannes
next prev parent reply other threads:[~2009-06-16 22:44 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-15 23:27 2.6.30: hibernation/swsusp lockup due to acpi-cpufreq Johannes Stezenbach
2009-06-16 0:16 ` Rafael J. Wysocki
2009-06-16 14:22 ` Johannes Stezenbach
2009-06-16 18:55 ` Andrew Morton
2009-06-16 19:57 ` Johannes Stezenbach
2009-06-16 20:25 ` Pallipadi, Venkatesh
2009-06-16 20:40 ` Johannes Stezenbach
2009-06-16 21:09 ` Andrew Morton
2009-06-16 21:18 ` Pallipadi, Venkatesh
2009-06-16 21:39 ` Rafael J. Wysocki
2009-06-16 22:44 ` Johannes Stezenbach [this message]
2009-06-16 20:44 ` Johannes Stezenbach
[not found] <cNtMS-6Iq-11@gated-at.bofh.it>
[not found] ` <cNuzd-7VN-3@gated-at.bofh.it>
[not found] ` <cNHPT-3kB-1@gated-at.bofh.it>
[not found] ` <cNM3f-1ty-29@gated-at.bofh.it>
[not found] ` <cNMZg-2ZR-17@gated-at.bofh.it>
[not found] ` <cNNsg-3U5-3@gated-at.bofh.it>
[not found] ` <cNNLx-4kf-5@gated-at.bofh.it>
[not found] ` <cNOeG-5cB-23@gated-at.bofh.it>
[not found] ` <cNOok-5pJ-11@gated-at.bofh.it>
[not found] ` <cNOy0-5C5-23@gated-at.bofh.it>
2009-07-04 18:09 ` Michael Witten
2009-07-04 21:29 ` Rafael J. Wysocki
2009-07-06 21:20 ` Pallipadi, Venkatesh
2009-07-06 21:39 ` Rafael J. Wysocki
2009-07-06 22:16 ` Pallipadi, Venkatesh
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