From: David Miller <davem@davemloft.net>
To: dev@openvz.org
Cc: kuznet@ms2.inr.ac.ru, netdev@vger.kernel.org, dim@sw.ru,
devel@openvz.org
Subject: Re: [PATCH] add_timer -> mod_timer() in dst_run_gc()
Date: Wed, 09 Aug 2006 02:26:12 -0700 (PDT) [thread overview]
Message-ID: <20060809.022612.18310364.davem@davemloft.net> (raw)
In-Reply-To: <44D9A46C.9070108@openvz.org>
From: Kirill Korotaev <dev@openvz.org>
Date: Wed, 09 Aug 2006 13:01:32 +0400
> F.e. timer has fired on CPU2, but the handler was preeempted
> by an irq before dst_lock is tried.
> Meanwhile, someone on CPU1 adds an entry to gc list and
> starts the timer.
> If CPU2 was preempted long enough, this timer can expire
> simultaneously with resuming timer handler on CPU1, arriving
> exactly to the situation described.
Makes sense.
Patch applied, thanks.
prev parent reply other threads:[~2006-08-09 9:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-09 9:01 [PATCH] add_timer -> mod_timer() in dst_run_gc() Kirill Korotaev
2006-08-09 9:26 ` David Miller [this message]
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