From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 16 Apr 2007 01:44:59 -0400 From: Dave Jones Subject: Re: BUG: Bad page state errors during kernel make Message-ID: <20070416054459.GA7528@redhat.com> References: <4622EDD3.9080103@zachcarter.com> <20070416035603.GD21217@redhat.com> <46230A3A.8060907@zachcarter.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46230A3A.8060907@zachcarter.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Zach Carter Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Sun, Apr 15, 2007 at 10:31:38PM -0700, Zach Carter wrote: > > Dave Jones wrote: > > On Sun, Apr 15, 2007 at 08:30:27PM -0700, Zach Carter wrote: > > > list_del corruption. prev->next should be c21a4628, but was e21a4628 > > > > 'c' became 'e' in that last address. A single bit flipped. > > Given you've had this for some time, this smells like a hardware problem. > > memtest86+ will probably show up something. > > Hum. I forgot to mention in my report that I had already run thru 10 clean passes with memtest86+ > > Do you think there might be other bad hw, or another explanation? Maybe. I've seen underpowered PSUs, bad motherboard capacitors, and even poor ventilation caused by clogged fans causing similar bugs. It could also actually be a software fault, but it's surprising that you hit it so easily, for so long, and no-one else seems to be equally as affected. Dave -- http://www.codemonkey.org.uk -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org