Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754164Ab1DAM0n (ORCPT ); Fri, 1 Apr 2011 08:26:43 -0400 Received: from ironport2-out.teksavvy.com ([206.248.154.181]:51058 "EHLO ironport2-out.pppoe.ca" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753159Ab1DAM0m (ORCPT ); Fri, 1 Apr 2011 08:26:42 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApIBAAnDlU1Ld/sX/2dsb2JhbAAMhDzTGZEGgSiDTHcE X-IronPort-AV: E=Sophos;i="4.63,282,1299474000"; d="scan'208";a="102291151" Message-ID: <4D95C47D.206@teksavvy.com> Date: Fri, 01 Apr 2011 08:26:37 -0400 From: Mark Lord User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 MIME-Version: 1.0 To: Jens Axboe CC: Rob Landley , Pete Clements , linux-kernel , "linux-ide@vger.kernel.org" , Tejun Heo Subject: Re: Commit 7eaceaccab5f40 causing boot hang. References: <201103291551.p2TFpDqZ001692@clem.clem-digital.net> <4D92C874.7040104@parallels.com> <4D931634.5030807@fusionio.com> <4D933584.5050005@parallels.com> <4D94432D.5080601@fusionio.com> <4D944544.9040705@parallels.com> <4D945247.4080404@fusionio.com> <4D945976.8000401@fusionio.com> <4D945BAD.10309@parallels.com> <4D9460F8.7080606@fusionio.com> In-Reply-To: <4D9460F8.7080606@fusionio.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 512 Lines: 14 On 11-03-31 07:09 AM, Jens Axboe wrote: .. > > Data point - only seems to happen on UP. If you add -smp X to kvm, then > it boots and works just fine. It smells oddly like some sort of irq > event. Like perhaps an IRQ waiting on a spinlock that's held elsewhere ? -- 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/