From: Michal Hocko <mhocko@suse.cz>
To: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
"John W. Linville" <linville@tuxdriver.com>,
linux-wireless@vger.kernel.org,
Yong Zhang <yong.zhang0@gmail.com>
Subject: Re: [3.2-rc3] 100% CPU usage while in del_timer_sync from iwl3945_rs_free_sta
Date: Thu, 1 Dec 2011 13:44:40 +0100 [thread overview]
Message-ID: <20111201124440.GB25614@tiehlicka.suse.cz> (raw)
In-Reply-To: <20111201115911.GA5706@redhat.com>
On Thu 01-12-11 12:59:12, Stanislaw Gruszka wrote:
> On Thu, Dec 01, 2011 at 11:55:38AM +0100, Michal Hocko wrote:
> > [ 349.316070] iwl3945_rs_free_sta rs_sta f4be1ac0
> > [ 349.316076] ------------[ cut here ]------------
> > [ 349.316097] WARNING: at drivers/net/wireless/iwlegacy/iwl-3945-rs.c:438 iwl3945_rs_free_sta+0x33/0x42 [iwl3945]()
>
> Johannes pointed on irc that this problem is most likely caused by:
>
> commit f785d83a19bca326f79d127a413e35769afc0105
> Author: Eliad Peller <eliad@wizery.com>
> Date: Mon Aug 8 16:50:22 2011 +0300
>
> mac80211: clear sta.drv_priv on reconfiguration
>
> Michal, could you confirm that? If that is the root of the problem, we
> need patch for iwlegacy (and iwlwifi) that allocate separate memory for
> rc structures.
Should I just revert it?
>
> Thanks
> Stanislaw
--
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9
Czech Republic
next prev parent reply other threads:[~2011-12-01 12:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-29 10:07 Michal Hocko
2011-11-29 11:39 ` Stanislaw Gruszka
2011-11-30 10:10 ` Michal Hocko
2011-11-30 14:23 ` Stanislaw Gruszka
2011-11-30 14:03 ` Michal Hocko
2011-11-30 15:39 ` Stanislaw Gruszka
2011-12-01 8:58 ` Michal Hocko
2011-12-01 10:55 ` Michal Hocko
2011-12-01 11:59 ` Stanislaw Gruszka
2011-12-01 12:44 ` Michal Hocko [this message]
2011-12-01 12:55 ` Stanislaw Gruszka
2011-12-01 13:13 ` Eliad Peller
2011-12-01 13:31 ` Stanislaw Gruszka
2011-12-01 13:37 ` Sedat Dilek
2011-12-01 14:05 ` Michal Hocko
2011-12-01 14:23 ` Eliad Peller
2011-12-01 15:45 ` John W. Linville
2011-12-01 12:04 ` Yong Zhang
2011-12-01 12:42 ` Michal Hocko
2011-12-01 2:09 ` Yong Zhang
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