From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966273AbXDGSsp (ORCPT ); Sat, 7 Apr 2007 14:48:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S966274AbXDGSsp (ORCPT ); Sat, 7 Apr 2007 14:48:45 -0400 Received: from nz-out-0506.google.com ([64.233.162.228]:25658 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966273AbXDGSso (ORCPT ); Sat, 7 Apr 2007 14:48:44 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bDOQ+rRhJOrM1wBomfVSNzKGKWTf1U0/kVndGBK5yaCOopKSwVhJHOaxrZKWz8OcPM7+c86lcL7/ouY5GlP1rADO8YdBcEzavuMtSUQKyqI6dK1w11eB0Ui6v3DzKcnj/Gb9kmoprrUxURI/tfB7AYFX0bOxpXO0uw2APg7rGqE= Message-ID: <6bffcb0e0704071148m238a7d96x5038e1c9f4fdfeeb@mail.gmail.com> Date: Sat, 7 Apr 2007 20:48:43 +0200 From: "Michal Piotrowski" To: "Andrew Morton" Subject: Re: mm snapshot broken-out-2007-04-07-03-27.tar.gz uploaded Cc: LKML , "Roland McGrath" In-Reply-To: <20070407113829.c10e9fd1.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200704071029.l37ATdKR032505@shell0.pdx.osdl.net> <46178ECC.2030107@googlemail.com> <20070407105328.836902d1.akpm@linux-foundation.org> <4617DE67.4090801@googlemail.com> <20070407113829.c10e9fd1.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 07/04/07, Andrew Morton wrote: > On Sat, 07 Apr 2007 20:09:43 +0200 Michal Piotrowski wrote: > > > BTW. I guess that this need a similar fix. > > > > kernel BUG at kernel/ptrace.c:494! > > invalid opcode: 0000 [#2] > > PREEMPT SMP > > last sysfs file: devices/platform/w83627hf.656/temp2_input > > Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nfsd exportfs lockd nfs_acl autofs4 sunrpc af_packet nf_conntrack_netbios_ns ipt_REJECT nf_conntrack_ipv4 xt_state nf_conntrack nfnetlink iptable_filter ip_tables ip6t_REJECT xt_tcpudp ip6table_filter ip6_tables x_tables ipv6 binfmt_misc thermal processor fan container nvram snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss intel_agp snd_pcm agpgart evdev snd_timer snd soundcore i2c_i801 snd_page_alloc ide_cd cdrom rtc unix > > CPU: 1 > > EIP: 0060:[] Not tainted VLI > > EFLAGS: 00010202 (2.6.21-rc6-mm1 #1) > > EIP is at ptrace_exit+0x29/0x21d > > > > no, I don't see what would cause that. Was there no call trace? Here is a call trace (it was in the first email). Call Trace: [] do_exit+0x16b/0x86c [] die+0x206/0x22c [] do_trap+0x8a/0xa4 [] do_invalid_op+0x88/0x92 [] error_code+0x79/0x80 [] ptrace_do_wait+0x1eb/0x510 [] do_wait+0x9d6/0xbad [] sys_wait4+0x30/0x32 [] sys_waitpid+0x27/0x29 [] syscall_call+0x7/0xb [] 0xb7f36410 > > It's always possible that some random part of the kernel has > gone and leaked a preempt_count. > > BUG_ON is an obnoxious thing - please prefer to use WARN_ON in non-fatal > situations. Particularly when the assertions aren't tested ;) > Regards, Michal -- Michal K. K. Piotrowski LTG - Linux Testers Group (PL) (http://www.stardust.webpages.pl/ltg/) LTG - Linux Testers Group (EN) (http://www.stardust.webpages.pl/linux_testers_group_en/)