Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750791AbVLLRko (ORCPT ); Mon, 12 Dec 2005 12:40:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750789AbVLLRko (ORCPT ); Mon, 12 Dec 2005 12:40:44 -0500 Received: from smtp.osdl.org ([65.172.181.4]:38098 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750766AbVLLRkn (ORCPT ); Mon, 12 Dec 2005 12:40:43 -0500 Date: Mon, 12 Dec 2005 09:40:34 -0800 (PST) From: Linus Torvalds To: Ryan Richter cc: Hugh Dickins , Kai Makisara , Andrew Morton , James Bottomley , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org Subject: Re: Fw: crash on x86_64 - mm related? In-Reply-To: <20051212165443.GD17295@tau.solarneutrino.net> Message-ID: References: <20051201195657.GB7236@tau.solarneutrino.net> <20051202180326.GB7634@tau.solarneutrino.net> <20051202194447.GA7679@tau.solarneutrino.net> <20051206160815.GC11560@tau.solarneutrino.net> <20051206204336.GA12248@tau.solarneutrino.net> <20051212165443.GD17295@tau.solarneutrino.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 804 Lines: 26 On Mon, 12 Dec 2005, Ryan Richter wrote: > > And yet another crash, this time during boot: The instruction that crashes is testb $0x80,0x1cd(%rdi) with %rdi being 6b6b6b6b6b6b6b6b, which is the pattern that slab poisoning uses for free areas. I think it's the "sdev->single_lun" test at the very top of the function, where "sdev" was initialized with "q->queuedata". So it looks like somebody free'd the request_queue structure before the IO completed. Definitely sounds like something screwy in SCSI.. I don't think this is VM related. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/