linux-kernel - Re: [3.2-rc3] 100% CPU usage while in del_timer_sync from iwl3945_rs_free

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Message-ID: <20111201133116.GD5706@redhat.com>
Date:	Thu, 1 Dec 2011 14:31:17 +0100
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Eliad Peller <eliad@...ery.com>
Cc:	Michal Hocko <mhocko@...e.cz>, LKML <linux-kernel@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>,
	linux-wireless@...r.kernel.org, Yong Zhang <yong.zhang0@...il.com>
Subject: Re: [3.2-rc3] 100% CPU usage while in del_timer_sync from
 iwl3945_rs_free_sta

On Thu, Dec 01, 2011 at 03:13:42PM +0200, Eliad Peller wrote:
> i don't really care about temporarily reverting it.
> but maybe you can just add an "initialized" flag to iwl3945_rs_sta,
> and check it on free_sta?

This is not right solution, that will prevent hangs though, but
we generally wipe out used data, so any other problem could be
triggered.

Stanislaw 
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