Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756256AbYCMNCa (ORCPT ); Thu, 13 Mar 2008 09:02:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753297AbYCMNCX (ORCPT ); Thu, 13 Mar 2008 09:02:23 -0400 Received: from e28smtp01.in.ibm.com ([59.145.155.1]:49725 "EHLO e28smtp01.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753289AbYCMNCW (ORCPT ); Thu, 13 Mar 2008 09:02:22 -0400 Message-ID: <47D925D2.9050003@linux.vnet.ibm.com> Date: Thu, 13 Mar 2008 18:32:10 +0530 From: Kamalesh Babulal User-Agent: Thunderbird 1.5.0.14ubu (X11/20080306) MIME-Version: 1.0 To: Matthew Wilcox CC: Michael Ellerman , Andrew Morton , linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org, pbadari@gmail.com, benh@kernel.crashing.org Subject: Re: [BUG] 2.6.25-rc5-mm1 kernel panic with "Exception: 501 " on powerpc References: <20080311011434.ad8c8d7d.akpm@linux-foundation.org> <47D7D2C9.4090001@linux.vnet.ibm.com> <20080312104645.34e58319.akpm@linux-foundation.org> <20080312175102.GC613@parisc-linux.org> <1205360769.7436.8.camel@concordia.ozlabs.ibm.com> <20080312223300.GE613@parisc-linux.org> In-Reply-To: <20080312223300.GE613@parisc-linux.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 967 Lines: 26 Matthew Wilcox wrote: > On Thu, Mar 13, 2008 at 09:26:09AM +1100, Michael Ellerman wrote: >> down() looks OK, but there's still a spin_lock_irq() in __down_common(), >> although I don't know if it makes sense for us to be in __down() at that >> stage. > > The spin_lock_irq in __down_common is correct. We're going to schedule(), > so we spin_unlock_irq() to save us passing the flags into the helper > function. If we had interrupts disabled on entry, there's an Aieee > for that. > Hi All, Sorry for all the noise made :-(, something wrong in the test setup from my end, the kernel was 2.6.25-rc3-mm1 not 2.6.25-rc5-mm1. This bug is not seen in the 2.6.25-rc5-mm1 kernel. -- Thanks & Regards, Kamalesh Babulal, -- 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/