Re: [stable] [PATCH V4] futex: set FLAGS_HAS_TIMEOUT during demuxfor FUTEX_WAIT
From: Greg KH
Date: Thu Apr 14 2011 - 17:57:10 EST
On Thu, Apr 14, 2011 at 02:43:01PM -0700, Darren Hart wrote:
> The FLAGS_HAS_TIMEOUT flag was not getting set, causing the restart_block to
> restart futex_wait() without a timeout after a signal.
> Commit b41277dc7a18ee332d in 2.6.38 introduced the regression by accidentally
> removing the the FLAGS_HAS_TIMEOUT assignment from futex_wait() during the setup
> of the restart block. Restore the originaly behavior.
> Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=32922
> V2: Added references to commit message.
> V3: Set flag during restart block instead of do_futex()
> V4: Correct stupid order of assignment mistake pointed out by Eric
> Signed-off-by: Darren Hart <dvhart@xxxxxxxxxxxxxxx>
> Reported-by: Tim Smith <tsmith201104@xxxxxxxxx>
> Reported-by: Torsten Hilbrich <torsten.hilbrich@xxxxxxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxx>
> CC: Eric Dumazet <eric.dumazet@xxxxxxxxx>
> CC: John Kacur <jkacur@xxxxxxxxxx>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read Documentation/stable_kernel_rules.txt
for how to do this properly.
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