From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Anderson Subject: Re: Fw: 2.5.75 - ppa unload PATCH and remaining problem Date: Tue, 15 Jul 2003 14:36:31 -0700 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20030715213631.GA3911@beaverton.ibm.com> References: <20030713141556.13650fdb.akpm@osdl.org> <20030714101041.65de0d72.akpm@osdl.org> <20030714203510.GE1317@beaverton.ibm.com> <200307152143.26772.arvidjaar@mail.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from e31.co.us.ibm.com ([32.97.110.129]:22499 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id S269736AbTGOVTS (ORCPT ); Tue, 15 Jul 2003 17:19:18 -0400 Content-Disposition: inline In-Reply-To: <200307152143.26772.arvidjaar@mail.ru> List-Id: linux-scsi@vger.kernel.org To: Andrey Borzenkov Cc: Andrew Morton , James.Bottomley@steeleye.com, hch@infradead.org, linux-scsi@vger.kernel.org Andrey Borzenkov [arvidjaar@mail.ru] wrote: > There are still remaining problems. Sorry if they are already known. > > 1. Removing USB memory stick without unmounting file system first results in > dead system. It crashes in several seconds with stack (sorry, had to write > down manually) > > sync_sb_inodes+0x97/0x2f0 > writeback_inodes > wb_kupdate > __pdflush > schedule_tail > pdflush_+0x00/0x20 > pdflush_0xf/0x20 > wb_kupdate > kernel_thread_helper > > Only Alt-Sysrq-B works after that. > > 2.0.0-test1 + this patch + my ppa patch > > This is currently showstopper for me :( > I previously posted a patch to linux-scsi for scsi host and scsi device ref count cleanups. The thread is available here: http://marc.theaimsgroup.com/?t=105770318200001&r=1&w=2 I have updated the patch with comments, but still want to finish a change to scsi_free_sdev and do some testing before I send it out again. I do not run devfs currently so I have not seen the issue related to devfs. -andmike -- Michael Anderson andmike@us.ibm.com