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Message-ID: <alpine.LFD.0.999.0709061409120.3781@enigma.security.iitk.ac.in> Date: Thu, 6 Sep 2007 14:11:46 +0530 (IST) From: Satyam Sharma <satyam@...radead.org> To: Herbert Xu <herbert@...dor.apana.org.au> cc: Florian Lohoff <flo@...822.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Netdev <netdev@...r.kernel.org>, linux-wireless@...r.kernel.org, Michal Piotrowski <michal.k.k.piotrowski@...il.com>, ipw3945-devel@...ts.sourceforge.net, yi.zhu@...el.com 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 ... - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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