Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756045AbZDUK2V (ORCPT ); Tue, 21 Apr 2009 06:28:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752362AbZDUK2G (ORCPT ); Tue, 21 Apr 2009 06:28:06 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:34849 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751559AbZDUK2F (ORCPT ); Tue, 21 Apr 2009 06:28:05 -0400 Message-ID: <49ED9FAC.1080303@garzik.org> Date: Tue, 21 Apr 2009 06:27:56 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: Benny Halevy CC: Jeff Garzik , lkml , linux-ide@vger.kernel.org, linux-scsi , Arjan van de Ven Subject: Re: Is sata_nv compatible with async scsi scan? References: <49ED6FD7.3070307@panasas.com> In-Reply-To: <49ED6FD7.3070307@panasas.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.5 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1014 Lines: 27 Benny Halevy wrote: > Hi Jeff, > > Since 2.6.29 I'm having intermittent problems with booting kernels. > After supposedly waiting for scsi async scan to complete, > quite frequently I see errors from the init resume process > when it fails to find the swap partition and later the root > file system fails to load. > > A workaround that I found to be helpful is booting the kernel > with scsi_mod.scan=sync so I suspect sata_nv has a problem > with asynchronous scanning. Personally, I think the whole system is broken, so continue to use this workaround until it gets fixed upstream. This sounds like some timing issues related to waiting for the device probe to finish, something that people keep breaking (witness my USB flash drive boot breakage). Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/