From: Peter Zijlstra <peterz@infradead.org>
To: Darren Hart <dvhart@infradead.org>
Cc: tglx@linutronix.de, mingo@kernel.org, juri.lelli@arm.com,
rostedt@goodmis.org, xlpang@redhat.com, bigeasy@linutronix.de,
linux-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com,
jdesfossez@efficios.com, bristot@redhat.com
Subject: Re: [PATCH -v4 00/10] FUTEX_UNLOCK_PI wobbles
Date: Sat, 17 Dec 2016 14:52:14 +0100 [thread overview]
Message-ID: <20161217135214.GY3107@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20161216233140.GC62123@f23x64.localdomain>
On Fri, Dec 16, 2016 at 03:31:40PM -0800, Darren Hart wrote:
> On Tue, Dec 13, 2016 at 09:36:38AM +0100, Peter Zijlstra wrote:
> > That way, when we drop hb->lock to wait, futex and rt_mutex wait state is
> > consistent.
> >
> >
> > In any case, it passes our inadequate testing.
>
> It passed my CI tools/testing/selftests/futex/functional/run.sh. Did you also
> happen to run a fuzz tester?
I did not. I'm not sure how good trinity is at poking holes in futexes.
I would love a domain specific fuzzer for futex, but I suspect it would
end up being me writing it :-(
next prev parent reply other threads:[~2016-12-17 13:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-13 8:36 Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 01/10] futex: Fix potential use-after-free in FUTEX_REQUEUE_PI Peter Zijlstra
2016-12-16 23:58 ` Darren Hart
2016-12-13 8:36 ` [PATCH -v4 02/10] futex: Add missing error handling to FUTEX_REQUEUE_PI Peter Zijlstra
2016-12-17 0:06 ` Darren Hart
2016-12-17 13:54 ` Peter Zijlstra
2016-12-18 23:31 ` Darren Hart
2016-12-13 8:36 ` [PATCH -v4 03/10] futex: Cleanup variable names for futex_top_waiter() Peter Zijlstra
2016-12-17 0:13 ` Darren Hart
2017-02-22 14:07 ` Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 04/10] futex: Use smp_store_release() in mark_wake_futex() Peter Zijlstra
2016-12-17 0:50 ` Darren Hart
2017-02-22 14:03 ` Peter Zijlstra
2017-03-17 0:35 ` Darren Hart
2016-12-13 8:36 ` [PATCH -v4 05/10] futex: Remove rt_mutex_deadlock_account_*() Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 06/10] futex,rt_mutex: Provide futex specific rt_mutex API Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 07/10] futex: Change locking Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 08/10] futex: Rework futex_lock_pi() vs rt_mutex_timed_futex_lock() Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 09/10] futex: Remove inconsistent hb/rt_mutex state magic Peter Zijlstra
2016-12-13 8:36 ` [PATCH -v4 10/10] futex: Pull rt_mutex_futex_unlock() out from under hb->lock Peter Zijlstra
2016-12-13 16:07 ` [PATCH -v4 00/10] FUTEX_UNLOCK_PI wobbles Peter Zijlstra
2017-02-22 11:02 ` Peter Zijlstra
2017-02-22 15:36 ` Peter Zijlstra
2017-03-01 9:05 ` Thomas Gleixner
2017-03-03 9:35 ` Peter Zijlstra
2016-12-16 23:31 ` Darren Hart
2016-12-17 13:52 ` Peter Zijlstra [this message]
2016-12-18 22:39 ` Darren Hart
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