From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ric Wheeler Subject: Re: mpt2sas logged messages Date: Tue, 18 Aug 2009 09:26:02 -0400 Message-ID: <4A8AABEA.3050305@redhat.com> References: <4A8AAA26.9090706@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mx2.redhat.com ([66.187.237.31]:50690 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758626AbZHRNYL (ORCPT ); Tue, 18 Aug 2009 09:24:11 -0400 In-Reply-To: <4A8AAA26.9090706@redhat.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Ric Wheeler Cc: linux-scsi@vger.kernel.org, kay.sievers@vrfy.org, Greg KH , Tom Coughlan On 08/18/2009 09:18 AM, Ric Wheeler wrote: > > We have a new toy to test very large & slow storage with built up from > 5 SAS expansion shelves (Promise Vtrak J-Class) with 60 S-ATA drives > and 16 SAS drives (the S-ATA drives each have a Promise Vtrak S-ATA > MUX adapter daughter card in the disk sled). > > The basic idea is to build a cheap & slow test bed for file & storage > system scalability. Collectively, we have about 120TB (raw) of > capacity to play with in one server. > > As we work through various issues, a couple of oddities popped out. > > The first is that udev grumbles during boot about "file name too long" > like the following: > > Aug 17 06:49:58 megadeth udevd-event[20447]: unable to create db file > '/dev/.udev/db/\x2fdevices\x2fpci0000:00\x2f0000:00:04.0\x2f0000:17:00.0\x2f0000:18:0a.0\x2f0000:1f:00.0\x2fhost11\x2fport-11:0\x2fexpander-11:0\x2fport-11:0:0\x2fexpander-11:1\x2fport-11:1:0\x2fexpander-11:2\x2fport-11:2:17\x2fexpander-11:3\x2fport-11:3:1\x2fend_device-11:3:1\x2fbsg\x2fend_device-11:3:1': > File name too long > > The second is that the mpt2sas driver spews various messages like: > > Aug 17 06:55:17 megadeth kernel: mpt2sas0: log_info(0x31120102): > originator(PL), code(0x12), sub_code(0x0102) > > Any insight into whether these are issues worth pursuing is > appreciated, thanks! > > Ric > > I left out the interesting part - this was an F11 system with a 2.6.31-rc6 kernel. I am updating the box to F12 rawhide to make sure that udev and related components are updated and will retest, Ric