Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:52660 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751632AbaKQNUj (ORCPT ); Mon, 17 Nov 2014 08:20:39 -0500 Message-ID: <1416230435.2031.5.camel@sipsolutions.net> (sfid-20141117_142041_989603_03055222) Subject: Re: [PATCH] mac80211: fix 11b fragmentation rx From: Johannes Berg To: Michal Kazior Cc: linux-wireless Date: Mon, 17 Nov 2014 14:20:35 +0100 In-Reply-To: (sfid-20141117_140719_994177_97277096) References: <1416223626-10980-1-git-send-email-michal.kazior@tieto.com> <1416227346.2031.3.camel@sipsolutions.net> (sfid-20141117_140719_994177_97277096) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 2014-11-17 at 14:07 +0100, Michal Kazior wrote: > My hunch was right. Apparently this happens when I use my kernel > .config with some debug stuff enabled. In case you're interested: > > * http://pastebin.com/7shTYtFy -- good > * http://pastebin.com/pxwdJ5hS -- panic Yeah, not much of a surprise since the pointer might still be valid or at least readable (even if the data there is garbage) ... if we get a good pointer. But we try to run with many debug options turned on anyway, so I don't know why this showed up only recently. Maybe some unrelated changes (compiler changing to load the pointer again, for example) johannes