From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: libata fails to recover from HSM violation involving DRQ status Date: Mon, 30 Apr 2007 12:58:25 +0900 Message-ID: <46356961.9020803@gmail.com> References: <4633AB75.7070107@rtr.ca> <4633B0A6.6090705@garzik.org> <20070428222502.26fc9bbc@the-village.bc.nu> <4633BEE7.8020005@garzik.org> <4633BF6D.40902@rtr.ca> <46340E63.5070209@gmail.com> <4634163D.1040408@gmail.com> <463487F0.4040701@rtr.ca> <46349695.7080706@rtr.ca> <46349A03.9090300@rtr.ca> <4634CAEC.4010700@gmail.com> <4634CC18.4080208@rtr.ca> <4634E8B3.4050301@rtr.ca> <4634ED0D.1090709@rtr.ca> <46353E63.7070000@gmail.com> <463565A6.3040506@rtr.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.234]:6541 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030853AbXD3Ttx (ORCPT ); Mon, 30 Apr 2007 15:49:53 -0400 Received: by nz-out-0506.google.com with SMTP id o1so2031854nzf for ; Mon, 30 Apr 2007 12:49:53 -0700 (PDT) In-Reply-To: <463565A6.3040506@rtr.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Lord Cc: Jeff Garzik , Alan Cox , Alan Cox , IDE/ATA development list Mark Lord wrote: > Tejun Heo wrote: >> >> Hmmm... that's very weird. I've never seen such problems. The report >> messages are printed in ata_eh_report() and both the cmd and res lines >> are printed by single invocation to printk(). Is the log captured using >> serial console? I think it could be transmission error or buffer >> overflow on serial link. > > Naw, just "dmesg > file", so it should be a pretty reliable capture. > Just odd. Something weird. The format string is pretty long with a lot of parameters. Maybe we're hitting some obscure bug in printk and friends? -- tejun