From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Galbraith Subject: Re: 2.6.23-rc1: BUG_ON in kmap_atomic_prot() Date: Tue, 24 Jul 2007 12:37:48 +0200 Message-ID: <1185273468.6467.5.camel@Homer.simpson.net> References: <20070723183839.GA5874@martell.zuzino.mipt.ru> <20070723190152.GA5755@martell.zuzino.mipt.ru> <20070723132431.42afbae8.akpm@linux-foundation.org> <1185271269.6479.7.camel@Homer.simpson.net> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: Alexey Dobriyan , Linus Torvalds , linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Andrew Morton Return-path: Received: from mail.gmx.net ([213.165.64.20]:46672 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S933443AbXGXKht (ORCPT ); Tue, 24 Jul 2007 06:37:49 -0400 In-Reply-To: <1185271269.6479.7.camel@Homer.simpson.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Tue, 2007-07-24 at 12:01 +0200, Mike Galbraith wrote: > On Mon, 2007-07-23 at 13:24 -0700, Andrew Morton wrote: > > > You're using DEBUG_PAGEALLOC, but I was not, so I think we can rule that out. > > My box bugged during boot the first time I booted 23-rc1, but nothing > made it to the console, and I didn't have a serial console running. I > didn't have DEBUG_PAGEALLOC or friends set. > > > I haven't worked out where that kmap_atomic() call is coming from yet. > > Both traces point up into the page allocator, but I _think_ that's stack > > gunk. > > I just enabled all debug options, and was just rewarded with the below. Hm. I just also experienced filesystem corruption when I tried to send from that kernel, and it bugged in the process. My mount table ended up in /etc/resolv.conf along with some binary goop, making nscd rather unhappy after reboot. fsck time. .Mike