Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760015AbbKTMKw (ORCPT ); Fri, 20 Nov 2015 07:10:52 -0500 Received: from ozlabs.org ([103.22.144.67]:44036 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757831AbbKTMKu (ORCPT ); Fri, 20 Nov 2015 07:10:50 -0500 Message-ID: <1448021448.14769.7.camel@ellerman.id.au> Subject: Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! From: Michael Ellerman To: Christoph Hellwig Cc: Mark Salter , "James E. J. Bottomley" , brking , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-block@vger.kernel.org, Laurent Dufour Date: Fri, 20 Nov 2015 23:10:48 +1100 In-Reply-To: <20151119082325.GA11419@infradead.org> References: <1447838334.1564.2.camel@ellerman.id.au> <1447855399.3974.24.camel@redhat.com> <1447894964.15206.0.camel@ellerman.id.au> <20151119082325.GA11419@infradead.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5-1ubuntu3 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 670 Lines: 20 On Thu, 2015-11-19 at 00:23 -0800, Christoph Hellwig wrote: > It's pretty much guaranteed a block layer bug, most likely in the > merge bios to request infrastucture where we don't obey the merging > limits properly. > > Does either of you have a known good and first known bad kernel? Not me, I've only hit it one or two times. All I can say is I have hit it in 4.4-rc1. Laurent, can you narrow it down at all? cheers -- 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/