From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nix Subject: Re: [SCSI REGRESSION] 3.10.2 or 3.10.3: arcmsr failure at bootup / early userspace transition Date: Mon, 29 Jul 2013 16:01:49 +0100 Message-ID: <8738qxfm02.fsf@spindle.srvr.nix> References: <87r4ehfzhf.fsf@spindle.srvr.nix> <51F667C2.4020801@fastmail.fm> <87mwp5frdl.fsf@spindle.srvr.nix> <51F67959.2060803@fastmail.fm> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <51F67959.2060803@fastmail.fm> (Bernd Schubert's message of "Mon, 29 Jul 2013 16:16:57 +0200") Sender: linux-kernel-owner@vger.kernel.org To: Bernd Schubert Cc: Linux Kernel Mailing List , linux-scsi@vger.kernel.org, "Martin K. Petersen" , nick.cheng@areca.com.tw List-Id: linux-scsi@vger.kernel.org On 29 Jul 2013, Bernd Schubert spake thusly: > On 07/29/2013 03:05 PM, Nix wrote: >> On 29 Jul 2013, Bernd Schubert said: >>> I tested this patch with ARC-1260 and F/W V1.49, no issues. Also, this >>> patch is only in 3.10.3, but not yet in 3.10.1. >> >> ... and I see this problem with 3.10.3 but not 3.10.1. (Haven't tried >> 3.10.2.) > > Hmm, indeed that points to this commit. I just don't see what could fail there. > > Could you try to run these commands with 3.10.1? > > # # check if reporting opcodes works > # sg_opcodes -v -n /dev/sdX > > # check ata information page > # sg_vpd --page=0x89 /dev/sdX If this might cause the same problem I think I'd better wait until work is done for the day and the machine is no longer loaded, and can be rebooted without harm... >> No changes to arcmsr between those versions... I suspect I'll have to >> bisect, which will be a complete pig because every failure means a hard >> powerdown of this box. Always-on servers rarely appreciate hard >> powerdowns :( >> > > Maybe just revert this commit? Helpful would be some scsi logging to > see which command actually fails. I guess you don't have a serial > console? Not at that stage, no! And, yes, a test revert of this one commit will be the first thing I try this evening / tomorrow morning (depending on system load). -- NULL && (void)