Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757480AbZDOCtL (ORCPT ); Tue, 14 Apr 2009 22:49:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753950AbZDOCsy (ORCPT ); Tue, 14 Apr 2009 22:48:54 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:49476 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752260AbZDOCsy (ORCPT ); Tue, 14 Apr 2009 22:48:54 -0400 Message-ID: <49E54B12.8040303@garzik.org> Date: Tue, 14 Apr 2009 22:48:50 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: Arjan van de Ven CC: Linux USB kernel mailing list , Greg KH , Alan Stern , LKML , "Rafael J. Wysocki" Subject: Re: USB storage no-boot regression (bisected) References: <49E4FAC6.1030400@garzik.org> <20090414183807.3baf72ed@infradead.org> <49E546C4.1060001@garzik.org> <20090414194414.22c63728@infradead.org> In-Reply-To: <20090414194414.22c63728@infradead.org> 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: 1049 Lines: 32 Arjan van de Ven wrote: > On Tue, 14 Apr 2009 22:30:28 -0400 > Jeff Garzik wrote: > >> Arjan van de Ven wrote: >>> This change just made it go faster enough for you to be out of luck; >>> fundamentally your userland needs to wait if the device it wants is >>> not there. >> All these drivers are in-kernel, and the root device is passed via >> command line. There is no userland at that point, that needs to wait. > > ok fair; but that does not change that the kernel does not know if a > device is coming. > Yes that sucks; sadly USB is just this way, you don't know when no new > devices will come from a certain bus. Perhaps -- but I can say that kernels <= 2.6.27 booted with 100% reliability. Now, Kernels >= 2.6.28 always fail. The ONLY variable is the kernel. 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/