From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [Patch 1/1] cciss: bug fix, prevent cciss from loading in kdump kernel Date: Tue, 16 Apr 2013 15:00:41 -0700 Message-ID: <20130416150041.ef8bac2a578c8cb0e5df4c49@linux-foundation.org> References: <20130415175906.GA16955@beardog.cce.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130415175906.GA16955@beardog.cce.hp.com> Sender: linux-kernel-owner@vger.kernel.org To: Mike Miller Cc: Jens Axboe , LKML , LKML-scsi List-Id: linux-scsi@vger.kernel.org On Mon, 15 Apr 2013 12:59:06 -0500 Mike Miller wrote: > Patch 1/1 > > If hpsa is selected as the Smart Array driver cciss may try to load in the > kdump kernel. When this happens kdump fails and a core file cannot be created. > This patch prevents cciss from trying to load in this scenario. This effects > primarily older Smart Array controllers. > OK, this is weird. kdump and scsi drivers are pretty darn remote things and I've never heard of such an interaction. Can you tell us a bit more about how and why this happened? Is there something special about cciss, or can we expect similar kdump interactions with other device drivers?