On 01/12/2014 10:42 AM, tip-bot for John Stultz wrote:
> Commit-ID: 7a06c41cbec33c6dbe7eec575c61986122617408
> Gitweb: http://git.kernel.org/tip/7a06c41cbec33c6dbe7eec575c61986122617408
> Author: John Stultz <john.stu...@linaro.org>
> AuthorDate: Thu, 2 Jan 2014 15:11:14 -0800
> Committer: Ingo Molnar <mi...@kernel.org>
> CommitDate: Sun, 12 Jan 2014 10:14:00 +0100
>
> sched_clock: Disable seqlock lockdep usage in sched_clock()
>
> Unfortunately the seqlock lockdep enablement can't be used
> in sched_clock(), since the lockdep infrastructure eventually
> calls into sched_clock(), which causes a deadlock.
>
> Thus, this patch changes all generic sched_clock() usage
> to use the raw_* methods.
>
> Acked-by: Linus Torvalds <torva...@linux-foundation.org>
> Reviewed-by: Stephen Boyd <sb...@codeaurora.org>
> Reported-by: Krzysztof Hałasa <khal...@piap.pl>
> Signed-off-by: John Stultz <john.stu...@linaro.org>
> Cc: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
> Cc: Willy Tarreau <w...@1wt.eu>
> Signed-off-by: Peter Zijlstra <pet...@infradead.org>
> Link:
> http://lkml.kernel.org/r/1388704274-5278-2-git-send-email-john.stu...@linaro.org
> Signed-off-by: Ingo Molnar <mi...@kernel.org>
Hey Ingo,
Just wanted to follow up here, since I've still not seen this (and
the raw_ renaming patch) submitted to Linus. These address a lockup that
triggers on ARM systems if lockdep is enabled and it would be good to
get it in before 3.13 is out.
thanks
-john
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
