From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: [Bugme-new] [Bug 5378] New: aic7xxx deadlock/freeze on Adaptec AIC-7899P Date: Mon, 10 Oct 2005 22:00:49 -0500 Message-ID: <1128999650.4824.41.camel@mulgrave> References: <200510061626.j96GQxFD025499@fire-1.osdl.org> <20051010184144.4dfe2241.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from stat9.steeleye.com ([209.192.50.41]:25039 "EHLO hancock.sc.steeleye.com") by vger.kernel.org with ESMTP id S1751359AbVJKDBB (ORCPT ); Mon, 10 Oct 2005 23:01:01 -0400 In-Reply-To: <20051010184144.4dfe2241.akpm@osdl.org> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Andrew Morton Cc: "bugme-daemon@kernel-bugs.osdl.org" , SCSI Mailing List On Mon, 2005-10-10 at 18:41 -0700, Andrew Morton wrote: > ISTR that there have been several reports of this regression. > > What could have caused this? Well ... the prior bug reports with this are in aic79xx, and there there were no significant code changes between the working and the non working versions. The aic7xxx driver has been fairly significantly changed but all in the area of setup and initialisation. This one looks like a sequencer error, possibly induced by a flakey bus. Apparently it actually managed to recover once, which is surprising for the aic driver, but then it died a second time around. There actually was a sequencer change (backport from aic latest driver) that could be responsible. However, it's in both 2.6.12 and 2.6.13. James