From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Darrick J. Wong" Subject: Re: aic79xx noise on hot insert in 2.6.19.x and 2.6.20 Date: Wed, 07 Feb 2007 01:03:12 -0800 Message-ID: <45C995D0.70108@us.ibm.com> References: Reply-To: "Darrick J. Wong" Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from e2.ny.us.ibm.com ([32.97.182.142]:40515 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030597AbXBGJEB (ORCPT ); Wed, 7 Feb 2007 04:04:01 -0500 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e2.ny.us.ibm.com (8.13.8/8.13.8) with ESMTP id l17940rg001551 for ; Wed, 7 Feb 2007 04:04:00 -0500 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v8.2) with ESMTP id l1793E3G231982 for ; Wed, 7 Feb 2007 04:03:14 -0500 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l1793DUN013849 for ; Wed, 7 Feb 2007 04:03:14 -0500 In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Mark Rustad Cc: linux-scsi Mark Rustad wrote: > I have systems with Supermicro X6-class (Nocona/Lindenhurst) > motherboards with Adaptec SCSI and SAFTE backplanes running software > RAID-1 (md) on a pair of drives. When I hot-insert a drive, I get a lot > of noise from the kernel apparently due to lack of handling something in > the interrupt routine. So far, life seems to go on after the event, but > not knowing anything about the internals of the driver, I am concerned > enough to want to ask about it. I see the noise too, though I don't know enough about aic79xx (and am too busy with aic94xx) to do anything about it. As far as I can tell, the driver's just being a little trigger happy with the "DUMP CARD STATE" routine. But that's my totally unqualified opinion. :) --D