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


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