From: Steven Rostedt <rostedt@goodmis.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@osdl.org>
Subject: Re: [BUG] Race condition with it_real_fn in kernel/itimer.c
Date: Wed, 15 Jun 2005 13:35:23 -0400 [thread overview]
Message-ID: <1118856923.4508.50.camel@localhost.localdomain> (raw)
In-Reply-To: <1118852632.4508.48.camel@localhost.localdomain>
On Wed, 2005-06-15 at 12:23 -0400, Steven Rostedt wrote:
>
> for_each_online_cpu(i) {
> base = &per_cpu(tvec_bases, i);
> if (base->running_timer == timer) {
> while (base->running_timer == timer) {
> cpu_relax();
> preempt_check_resched();
> }
> break;
> }
> }
>
> If the timer hasn't gone off yet on another cpu, it will spin until it
> is finished. Now here's the problem:
This was suppose to say...
If the timer is currently going off on another cpu.
-- Steve
next prev parent reply other threads:[~2005-06-15 17:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-15 16:23 [BUG] Race condition with it_real_fn in kernel/itimer.c Steven Rostedt
2005-06-15 17:35 ` Steven Rostedt [this message]
2005-06-15 20:25 ` Andrew Morton
2005-06-15 21:01 ` Steven Rostedt
2005-06-15 17:39 Oleg Nesterov
2005-06-15 18:37 ` Steven Rostedt
2005-06-16 9:03 ` Oleg Nesterov
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