From: Peter Zijlstra <peterz@infradead.org>
To: Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU>
Cc: Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: [ANNOUNCE] 3.0-rt6
Date: Thu, 04 Aug 2011 11:42:45 +0200 [thread overview]
Message-ID: <1312450965.16729.7.camel@twins> (raw)
In-Reply-To: <4E3A3D7C.6050403@localhost>
On Wed, 2011-08-03 at 23:34 -0700, Fernando Lopez-Lezcano wrote:
> [ 117.026009] [<ffffffff814ef322>] _raw_spin_lock+0x45/0x79
> [ 117.026009] [<ffffffff8107b6f1>] ? __run_posix_cpu_timers+0x8f/0x353
> [ 117.026009] [<ffffffff8107b6f1>] __run_posix_cpu_timers+0x8f/0x353
I think its this one, could you confirm?
---
Index: linux-2.6/kernel/posix-cpu-timers.c
===================================================================
--- linux-2.6.orig/kernel/posix-cpu-timers.c
+++ linux-2.6/kernel/posix-cpu-timers.c
@@ -1288,10 +1288,11 @@ static inline int fastpath_timer_check(s
sig = tsk->signal;
if (sig->cputimer.running) {
struct task_cputime group_sample;
+ unsigned long flags;
- raw_spin_lock(&sig->cputimer.lock);
+ raw_spin_lock_irqsave(&sig->cputimer.lock, flags);
group_sample = sig->cputimer.cputime;
- raw_spin_unlock(&sig->cputimer.lock);
+ raw_spin_unlock_irqrestore(&sig->cputimer.lock, flags);
if (task_cputime_expired(&group_sample, &sig->cputime_expires))
return 1;
next prev parent reply other threads:[~2011-08-04 9:43 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-28 21:43 [ANNOUNCE] 3.0-rt6 Thomas Gleixner
2011-07-28 23:33 ` Peter W. Morreale
2011-07-29 0:56 ` Thomas Gleixner
2011-07-29 6:05 ` Mike Galbraith
2011-07-29 14:03 ` Paul E. McKenney
2011-07-29 15:57 ` [ANNOUNCE] 3.0-rt6 (kgdb working) Darren Hart
2011-07-30 15:49 ` [ANNOUNCE] 3.0-rt6 Remy Bohmer
2011-07-30 20:21 ` Remy Bohmer
2011-08-07 10:44 ` Remy Bohmer
2011-08-01 8:42 ` Rolando Martins
2011-08-01 10:34 ` Mike Galbraith
2011-08-01 10:45 ` Rolando Martins
2011-08-01 11:06 ` Peter Zijlstra
2011-08-01 11:10 ` Rolando Martins
2011-08-04 6:34 ` Fernando Lopez-Lezcano
2011-08-04 9:42 ` Peter Zijlstra [this message]
2011-08-04 19:05 ` Fernando Lopez-Lezcano
2011-08-04 20:15 ` Uwe Kleine-König
2011-08-05 9:28 ` Uwe Kleine-König
2011-08-05 16:03 ` Fernando Lopez-Lezcano
2011-08-08 17:25 ` Fernando Lopez-Lezcano
2011-08-04 16:34 ` [ANNOUNCE] 3.0-rt6 : BUG at kernel/trmutex.c:724! Tim Sander
2011-08-04 16:37 ` Peter Zijlstra
2011-08-04 17:04 ` Tim Sander
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