From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: spinlock recursion in scsi_end_request() (kernel 2.6.24) Date: Thu, 20 May 2010 12:02:48 +0200 Message-ID: <4BF508C8.9050405@kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:38506 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753006Ab0ETKCv (ORCPT ); Thu, 20 May 2010 06:02:51 -0400 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Prashant <0xfffff0@gmail.com> Cc: linux-ide@vger.kernel.org On 05/17/2010 01:32 PM, Prashant wrote: > Hi, > I have a board with backplane for SATA disks. Sometimes when I unplug > a disk while > IO is going on, I get following problem. Has anybody of you > experienced this before? > Sometimes spinlock owner is kblockd, sometimes it is scsi_eh. Sorry but 2.6.24 is way too ancient at this point and too much has changed. Can you please try a recent kernel and see whether the problem is reproducible? Thanks. -- tejun