From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Mike Galbraith <bitbucket@online.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
RT <linux-rt-users@vger.kernel.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: [PATCH v2] rtmutex: take the waiter lock with irqs off
Date: Fri, 22 Nov 2013 18:44:53 +0100 [thread overview]
Message-ID: <528F9815.3030208@linutronix.de> (raw)
In-Reply-To: <528F846E.4000703@linutronix.de>
On 11/22/2013 05:21 PM, Sebastian Andrzej Siewior wrote:
> On 11/22/2013 05:08 PM, Peter Zijlstra wrote:
>> On Fri, Nov 22, 2013 at 02:59:31PM +0100, Sebastian Andrzej Siewior wrote:
>>> +extern void __lockfunc rt_spin_try_unlock(spinlock_t *lock);
>>
>> I know what you mean, but.. try_unlock() just sounds wrong, how can we
>> attempt but fail to unlock a lock we hold ;-)
kernel BUG at kernel/rtmutex.c:850!
[<ffffffff815ee9d5>] rt_spin_try_unlock+0x25/0x30
[<ffffffff81091ccd>] get_next_timer_interrupt+0xdd/0x270
It depends how hard you try :P Bah.
Sebastian
next prev parent reply other threads:[~2013-11-22 17:44 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-31 14:07 CONFIG_NO_HZ_FULL + CONFIG_PREEMPT_RT_FULL = nogo Mike Galbraith
2013-11-06 17:49 ` Thomas Gleixner
2013-11-07 3:26 ` Mike Galbraith
2013-11-07 4:31 ` Mike Galbraith
2013-11-07 11:21 ` Thomas Gleixner
2013-11-07 12:59 ` Frederic Weisbecker
2013-11-07 13:13 ` Thomas Gleixner
2013-11-12 8:06 ` Mike Galbraith
2013-11-12 9:28 ` Thomas Gleixner
2013-11-15 16:30 ` [PATCH] rtmutex: take the waiter lock with irqs off Sebastian Andrzej Siewior
2013-11-15 20:14 ` [PATCH v2] " Sebastian Andrzej Siewior
2013-11-15 20:14 ` Sebastian Andrzej Siewior
2013-11-18 14:10 ` Peter Zijlstra
2013-11-18 17:56 ` Peter Zijlstra
2013-11-18 23:59 ` Frederic Weisbecker
2013-11-19 8:30 ` Peter Zijlstra
2013-11-22 13:59 ` Sebastian Andrzej Siewior
2013-11-22 16:08 ` Peter Zijlstra
2013-11-22 16:21 ` Sebastian Andrzej Siewior
2013-11-22 17:44 ` Sebastian Andrzej Siewior [this message]
2013-11-25 18:33 ` Paul Gortmaker
2013-11-07 13:07 ` CONFIG_NO_HZ_FULL + CONFIG_PREEMPT_RT_FULL = nogo Mike Galbraith
2013-12-20 15:41 ` Sebastian Andrzej Siewior
2013-12-21 9:11 ` Mike Galbraith
2013-12-21 17:21 ` Muli Baron
2013-12-22 4:17 ` Mike Galbraith
2013-12-22 5:10 ` Mike Galbraith
2013-12-22 5:37 ` Mike Galbraith
2013-12-22 5:16 ` Mike Galbraith
2013-11-08 3:23 ` Paul E. McKenney
2013-11-08 7:31 ` Mike Galbraith
2013-11-08 12:37 ` Paul E. McKenney
2013-11-08 13:26 ` Mike Galbraith
2013-11-08 14:03 ` Paul E. McKenney
2013-11-08 14:21 ` Mike Galbraith
2013-11-08 14:29 ` Frederic Weisbecker
2013-11-08 14:45 ` Paul E. McKenney
2013-11-08 16:03 ` Frederic Weisbecker
2013-11-08 14:53 ` Mike Galbraith
2013-11-08 16:04 ` Frederic Weisbecker
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