From: Thomas Gleixner <tglx@linutronix.de>
To: Jeremy Katz <jeremy.katz@windriver.com>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
Ingo Molnar <mingo@elte.hu>, Oleg Nesterov <oleg@tv-sign.ru>,
Stable Team <stable@kernel.org>
Subject: Re: [PATCH] posix-timer: fix deletion race
Date: Thu, 19 Jul 2007 07:50:21 +0200 [thread overview]
Message-ID: <1184824221.12353.526.camel@chaos> (raw)
In-Reply-To: <Pine.LNX.4.63.0707181631450.3157@localhost.localdomain>
On Wed, 2007-07-18 at 16:43 -0700, Jeremy Katz wrote:
> On Wed, 18 Jul 2007, Jeremy Katz wrote:
>
> > On Wed, 18 Jul 2007, Thomas Gleixner wrote:
> >
> >>> Also can you please enable CONFIG_PROVE_LOCKING, which might catch any
> >>> locking problem, which might be related to this.
> >>
> >> Another test: Can you please disable CONFIG_SCHED_SMT to narrow it down
> >> further ?
> >
> > I'll try both of these.
>
> I'm still seeing the sys_timer_delete version with your patch, and
> sys_timer_delete and posix_timer_event without. The itimer_delete version
> is currently missing in action, but getting any particular one to perform
> on demand is currently not in my power.
Ok, let me summarize:
2.6.22 + hrt6
Both problems are there whether CONFIG_SCHED_SMT is on or not
2.6.22 + hrt6 + posixtimer patch
Both problems are there whether CONFIG_SCHED_SMT is on
The timer callback problem is gone when CONFIG_SCHED_SMT is off
Correct ?
tglx
next prev parent reply other threads:[~2007-07-19 5:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 18:19 POSIX timer deletion race? Jeremy Katz
2007-07-17 8:53 ` [PATCH] posix-timer: fix deletion race Thomas Gleixner
2007-07-17 9:57 ` Ingo Molnar
2007-07-17 18:29 ` Jeremy Katz
2007-07-17 13:07 ` Oleg Nesterov
2007-07-17 17:02 ` Thomas Gleixner
2007-07-17 18:39 ` Jeremy Katz
2007-07-17 20:17 ` Thomas Gleixner
2007-07-17 23:12 ` Jeremy Katz
2007-07-17 23:58 ` Jeremy Katz
2007-07-18 6:05 ` Thomas Gleixner
2007-07-18 6:58 ` Thomas Gleixner
2007-07-18 19:02 ` Jeremy Katz
2007-07-18 23:43 ` Jeremy Katz
2007-07-19 5:50 ` Thomas Gleixner [this message]
2007-07-19 19:24 ` Jeremy Katz
2007-07-18 16:11 ` Oleg Nesterov
2007-07-18 19:08 ` Jeremy Katz
2007-07-20 14:15 ` Oleg Nesterov
2007-07-24 2:07 ` Jeremy Katz
2007-07-24 14:51 ` Oleg Nesterov
2007-07-24 18:36 ` Jeremy Katz
2007-07-24 20:43 ` Oleg Nesterov
2007-07-24 21:19 ` Jeremy Katz
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