Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752523Ab3JIM1T (ORCPT ); Wed, 9 Oct 2013 08:27:19 -0400 Received: from merlin.infradead.org ([205.233.59.134]:38560 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751380Ab3JIM1S (ORCPT ); Wed, 9 Oct 2013 08:27:18 -0400 Date: Wed, 9 Oct 2013 14:27:05 +0200 From: Peter Zijlstra To: Fengguang Wu Cc: Oleg Nesterov , Linus Torvalds , Ingo Molnar , Linux Kernel Mailing List Subject: Re: [x86] BUG: unable to handle kernel paging request at 00740060 Message-ID: <20131009122705.GG3081@twins.programming.kicks-ass.net> References: <20131005234430.GA22485@localhost> <20131008143400.GA14721@redhat.com> <20131009080459.GA2298@localhost> <20131009121911.GA18770@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131009121911.GA18770@localhost> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 728 Lines: 18 On Wed, Oct 09, 2013 at 08:19:11PM +0800, Fengguang Wu wrote: > > > Fengguang, I do not think this will help, but just in case. Could you > > > show the result of > > > > > > $ kernel/task_work.s > > Update: I recompiled the kernel with gcc 4.4.7 and find it booting fine! > # 208 "/c/wfg/tip/arch/x86/include/asm/bitops.h" 1 > bts $1, 8(%eax); setc %dl #,, c That compiler doesn't appear to have asm goto support, so we fall back to the code we already knew worked :-) -- 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/