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From: Thomas Gleixner <tglx@linutronix.de>
To: netdev@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	Patrick McHardy <kaber@trash.net>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [patch 0/3]  net: Sanitizing hrtimer usage in net/sched/sch_cbq.c
Date: Thu, 09 Jul 2009 21:59:18 -0000	[thread overview]
Message-ID: <20090709215455.703939259@linutronix.de> (raw)

While looking at the "Soft-Lockup/Race in networking in 2.6.31-rc1+195
( possibly caused by netem)" issue (http://lkml.org/lkml/2009/7/2/519)
I noticed some serious problems in the hrtimer related code of
net/sched/sched/sch_cbq.c.

The following patch series addresses these.

I'm not entirely sure whether patch [1/3] covers all possible
concurrent modifications, but it fixes the most obvious ones. The
remaining details are left to the networking experts.

Patches [1/3] and [2/3] might be stable material as well.

Thanks,

	tglx


             reply	other threads:[~2009-07-09 21:59 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-09 21:59 Thomas Gleixner [this message]
2009-07-09 21:59 ` [patch 1/3] net: serialize hrtimer callback in sched_cbq Thomas Gleixner
2009-07-12 20:55   ` David Miller
2009-07-14  8:22     ` Patrick McHardy
2009-07-14  8:30       ` Peter Zijlstra
2009-07-14 16:01       ` David Miller
2009-07-14  8:55     ` Thomas Gleixner
2009-07-14 16:00       ` David Miller
2009-07-14 16:28         ` Peter Zijlstra
2009-07-14 16:42           ` Linus Torvalds
2009-07-17 12:14             ` Peter Zijlstra
2009-07-17 13:26               ` Oliver Hartkopp
2009-07-17 15:44               ` Linus Torvalds
2009-07-22  3:18               ` David Miller
2009-07-22  6:29                 ` Peter Zijlstra
2009-07-22 12:28                 ` [PATCH] softirq: tasklet_hrtimer Peter Zijlstra
2009-07-22 14:01                   ` [tip:timers/urgent] softirq: introduce tasklet_hrtimer infrastructure tip-bot for Peter Zijlstra
2009-07-22 15:03                   ` [tip:core/urgent] " tip-bot for Peter Zijlstra
2009-07-22 15:39                   ` [PATCH] softirq: tasklet_hrtimer David Miller
2009-07-22 16:01                   ` Linus Torvalds
2009-07-15  9:56         ` [patch 1/3] net: serialize hrtimer callback in sched_cbq Oliver Hartkopp
2009-07-09 21:59 ` [patch 2/3] net: sanitize hrtimer usage " Thomas Gleixner
2009-07-09 21:59 ` [patch 3/3] net: use HRTIMER_RESTART " Thomas Gleixner
2009-07-10  0:39 ` [patch 0/3] net: Sanitizing hrtimer usage in net/sched/sch_cbq.c David Miller
2009-07-12 20:57 ` David Miller

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