* [REGRESSION] S3 suspend on SandyBridge freezes due to on_each_cpu() change (bd924e8)
@ 2011-01-26 16:02 Matthias Hopf
2011-01-28 16:49 ` Matthias Hopf
0 siblings, 1 reply; 2+ messages in thread
From: Matthias Hopf @ 2011-01-26 16:02 UTC (permalink / raw)
To: Tejun Heo, Ingo Molnar, Matthieu CASTET
Cc: Andrew Morton, Peter Zijlstra, Milton Miller, linux-kernel,
Oliver Neukum
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While bisecting a dri S3 issue I stumbled in 2.6.38-rc1 over a
regression because of NX protection (5bd5a4, currently being discussed),
and with a patch fixing this issue I stumbled again in 2.6.38-rc2
because of commit bd924e8:
smp: Allow on_each_cpu() to be called while early_boot_irqs_disabled status to init/main.c
Reverting this commit makes suspend work on SandyBridge again. I haven't
tested reverting this commit on v2.6.38-rc2 yet, though.
I'm compiling for i586, not x86_64.
lspci -vvv output is attached.
(for internal reference: machine NUE874)
Matthias
--
Matthias Hopf <mhopf@suse.de> __ __ __
Maxfeldstr. 5 / 90409 Nuernberg (_ | | (_ |__ mat@mshopf.de
Phone +49-911-74053-715 __) |_| __) |__ R & D www.mshopf.de
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [REGRESSION] S3 suspend on SandyBridge freezes due to on_each_cpu() change (bd924e8)
2011-01-26 16:02 [REGRESSION] S3 suspend on SandyBridge freezes due to on_each_cpu() change (bd924e8) Matthias Hopf
@ 2011-01-28 16:49 ` Matthias Hopf
0 siblings, 0 replies; 2+ messages in thread
From: Matthias Hopf @ 2011-01-28 16:49 UTC (permalink / raw)
To: Tejun Heo, Ingo Molnar, Matthieu CASTET, Andrew Morton,
Peter Zijlstra, Milton Miller, linux-kernel, Oliver Neukum
On Jan 26, 11 17:02:31 +0100, Matthias Hopf wrote:
> While bisecting a dri S3 issue I stumbled in 2.6.38-rc1 over a
> regression because of NX protection (5bd5a4, currently being discussed),
> and with a patch fixing this issue I stumbled again in 2.6.38-rc2
> because of commit bd924e8:
The patch in https://bugzilla.kernel.org/show_bug.cgi?id=27472#c9 fixes
both regressions.
Matthias
--
Matthias Hopf <mhopf@suse.de> __ __ __
Maxfeldstr. 5 / 90409 Nuernberg (_ | | (_ |__ mat@mshopf.de
Phone +49-911-74053-715 __) |_| __) |__ R & D www.mshopf.de
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2011-01-26 16:02 [REGRESSION] S3 suspend on SandyBridge freezes due to on_each_cpu() change (bd924e8) Matthias Hopf
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