From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:53188 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757814Ab0JEH4K (ORCPT ); Tue, 5 Oct 2010 03:56:10 -0400 Subject: Re: Crash in agg-tx.c, with ath9k and lots of STA VIFs. From: Johannes Berg To: Ben Greear Cc: "Luis R. Rodriguez" , "linux-wireless@vger.kernel.org" In-Reply-To: <4CAA5861.4020503@candelatech.com> References: <4CAA2247.50402@candelatech.com> <1286218879.3620.55.camel@jlt3.sipsolutions.net> <4CAA252F.9090102@candelatech.com> <1286219405.3620.56.camel@jlt3.sipsolutions.net> <4CAA494B.5000500@candelatech.com> <4CAA5861.4020503@candelatech.com> Content-Type: text/plain; charset="UTF-8" Date: Tue, 05 Oct 2010 09:56:06 +0200 Message-ID: <1286265366.3641.2.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 2010-10-04 at 15:42 -0700, Ben Greear wrote: > I did find a similar crash while debugging a kernel with just symbols > compiled in (not kgdb) though: Doesn't seem all that similar... > The interesting thing to me is that the 00100104 address is the same in > both crashes, though this one is in a different method. except for that maybe. But this is LIST_POISON1, and with seemingly different lists. It may be faster to reproduce if you enable slab/slub debugging. > Also, this is with power-save NOT disabled (I was hoping to > hit some debugging code I put in for the other crash..hit this instead.) > > Oct 4 15:26:15 localhost kernel: BUG: unable to handle kernel paging request at 00100104 > Oct 4 15:26:15 localhost kernel: IP: [] cfg80211_unlink_bss+0x4d/0x8d [cfg80211] Looks like a mac80211 bug, but you snipped the stack trace. johannes