Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751229Ab2JCEXH (ORCPT ); Wed, 3 Oct 2012 00:23:07 -0400 Received: from gate.crashing.org ([63.228.1.57]:52567 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750841Ab2JCEXF (ORCPT ); Wed, 3 Oct 2012 00:23:05 -0400 Message-ID: <1349238166.3847.38.camel@pasglop> Subject: Re: [REGRESSION] nfsd crashing with 3.6.0-rc7 on PowerPC From: Benjamin Herrenschmidt To: Nishanth Aravamudan Cc: Alexander Graf , LKML List , anton@samba.org, linuxppc-dev Date: Wed, 03 Oct 2012 14:22:46 +1000 In-Reply-To: <20121002214327.GA29218@linux.vnet.ibm.com> References: <3BDA9E62-7031-42D6-8CA9-5327B61700F5@suse.de> <20120928151043.GA19102@fieldses.org> <2A52FC96-148C-4F7A-9950-E152E0C6698D@suse.de> <1349139509.3847.2.camel@pasglop> <20121002214327.GA29218@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 904 Lines: 25 On Tue, 2012-10-02 at 14:43 -0700, Nishanth Aravamudan wrote: > > Started looking into this. If your suspicion were accurate, wouldn't > the > bisection have stopped at 0e4bc95d87394364f408627067238453830bdbf3 > ("powerpc/iommu: Reduce spinlock coverage in iommu_alloc and > iommu_free")? > > Alex, the error is reproducible, right? Does it go away by reverting > that commit against mainline? Just trying to narrow down my focus. My suspiction is, I'm afraid, a real bug but not that bug since it would only happen on U3 and this is an U4 machine ... so we have two bugs, one of them still unidentified. Cleaning up the CC list for now... Cheers, Ben. -- 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/