Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757265Ab1DLWa7 (ORCPT ); Tue, 12 Apr 2011 18:30:59 -0400 Received: from mail-qy0-f174.google.com ([209.85.216.174]:37112 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932137Ab1DLWax convert rfc822-to-8bit (ORCPT ); Tue, 12 Apr 2011 18:30:53 -0400 MIME-Version: 1.0 In-Reply-To: References: <20110412182809.GA1218@redhat.com> <20110412192059.GA14360@redhat.com> Date: Wed, 13 Apr 2011 00:30:51 +0200 Message-ID: Subject: Re: Processes hang in an unkillable state From: =?UTF-8?B?Um9iZXJ0IMWad2nEmWNraQ==?= To: Linus Torvalds Cc: Oleg Nesterov , =?UTF-8?Q?Am=C3=A9rico_Wang?= , linux-kernel@vger.kernel.org, Hugh Dickins , Miklos Szeredi Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1534 Lines: 38 On Wed, Apr 13, 2011 at 12:18 AM, Linus Torvalds wrote: > On Tue, Apr 12, 2011 at 3:16 PM, Robert Święcki wrote: >> On Wed, Apr 13, 2011 at 12:12 AM, Linus Torvalds >> wrote: >>> On Tue, Apr 12, 2011 at 2:59 PM, Robert Święcki wrote: >>>> >>>> Compiling now with CONFIG_OPTIMIZE_SIZE and vma dump code. Will >>>> probably post some results tomorrow. >>> >>> .. and if you've added my patch to the stack growth case, hopefully >>> there won't _be_ any results ;) >> >> I can, depending in whether you'd like to see vma dump results for >> this case or not. Let me know, it's still cooooompiling :). > > Please do add it. Since it can take a long time to trigger, it's best > to just try to fix this issue asap. If it never triggers, and we don't > see any vma dumps, I won't cry. Ok, btw, here might be another path which hits this (at least I think so). http://alt.swiecki.net/linux_kernel/sys_mprotect-2.6.38.txt And, generally: here are a few deadlocks/bug_on's/ooops gathered earlier (some fixed already) - http://alt.swiecki.net/linux_kernel/ - I'll try to ask for fixes for them one by one, as soon as they repeat and I have proper kdb/perf dumps. -- Robert Święcki -- 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/