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SubjectRe: 2.6.32-rc5-mmotm1101 - lockdep whinge during early boot
On Thu, 5 Nov 2009, Martin Schwidefsky wrote:
> >
> > Which basically reverts commit 7285dd7fd375763bfb8ab1ac9cf3f1206f503c16
> >
>
> It is this commit in linux-next:
>
> commit 66b1a72ceaa7da811db025855f19482f0a38e815
> Author: Ingo Molnar <mingo@elte.hu>
> Date: Thu Sep 10 19:39:52 2009 +0200
>
> Revert "clocksource: Resolve cpu hotplug dead lock with TSC unstable"
>
> This reverts commit 7285dd7fd375763bfb8ab1ac9cf3f1206f503c16.
>
> causes crashes.
>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>

Eeek. We fixed this in mainline via:

commit f79e0258ea1f04d63db499479b5fb855dff6dbc5
Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri Sep 11 15:33:05 2009 +0200

clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash

and

commit 54a6bc0b071c50150bc6d1da16c2cd9a963e288c
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Mon Sep 14 19:49:02 2009 +0200

clocksource: Delay clocksource down rating to late boot


These patches came via the tip tree right at the beginning of the
merge window several days _before_ I asked Linus to pull the timer
code for 32.

So there is something weird going on.

Thanks,

tglx


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