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Re: [3.2-rc3] 100% CPU usage while in del_timer_sync from iwl3945_rs_free_sta

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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@xxxxxxxxxx>
> 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
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