From: Stanislaw Gruszka <sgruszka@redhat.com>
To: Michal Hocko <mhocko@suse.cz>
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 12:59:12 +0100 [thread overview]
Message-ID: <20111201115911.GA5706@redhat.com> (raw)
In-Reply-To: <20111201105538.GA4504@tiehlicka.suse.cz>
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.
Thanks
Stanislaw
next prev parent reply other threads:[~2011-12-01 11:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-29 10:07 [3.2-rc3] 100% CPU usage while in del_timer_sync from iwl3945_rs_free_sta 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 [this message]
2011-12-01 12:44 ` Michal Hocko
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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