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Date:	Thu, 6 Sep 2007 14:11:46 +0530 (IST)
From:	Satyam Sharma <>
To:	Herbert Xu <>
cc:	Florian Lohoff <>,
	Linux Kernel Mailing List <>,
	Netdev <>,,
	Michal Piotrowski <>,,
Subject: Re: BUG: scheduling while atomic: ifconfig/0x00000002/4170

On Thu, 6 Sep 2007, Herbert Xu wrote:

> On Thu, Sep 06, 2007 at 10:32:33AM +0530, Satyam Sharma wrote:
> > 
> > > > [  382.529041]  [<c02c8abc>] dev_close+0x24/0x67
> > > > [  382.529052]  [<e01f402b>] ieee80211_master_stop+0x4a/0x6d [mac80211]
> This is where the bug is.  You cannot call dev_close from an
> atomic context as i33380211_master_stop does it within spin
> locks.

Doh, of course! I must be blind ... and wait_for_completion()'s
might_sleep() clearly didn't trigger earlier because Florian must've
had CONFIG_DEBUG_SPINLOCK_SLEEP off in his .config ...
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