From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753237AbZBJHKm (ORCPT ); Tue, 10 Feb 2009 02:10:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751276AbZBJHKc (ORCPT ); Tue, 10 Feb 2009 02:10:32 -0500 Received: from mail-bw0-f161.google.com ([209.85.218.161]:61500 "EHLO mail-bw0-f161.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750798AbZBJHKc (ORCPT ); Tue, 10 Feb 2009 02:10:32 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=YUKxDZ6wkL5HROLBmYJ2yl9+pdrmkfxRC3RntvhPrgdLc3d8IXjTXvWOLIP0W2Y6es HMu8LyGTQPXlxVS3MN4opiLhhV9xESMe5FaF8FHUyQMLZKPxVOVFvmI1fczxtN2ySo7W sTGz49xVjk4sxthaJRVqfSse2dxbnwB6DZSfM= MIME-Version: 1.0 In-Reply-To: <20090210142443.629E.KOSAKI.MOTOHIRO@jp.fujitsu.com> References: <20090210142443.629E.KOSAKI.MOTOHIRO@jp.fujitsu.com> Date: Tue, 10 Feb 2009 08:10:29 +0100 Message-ID: <19f34abd0902092310g513fb776s2e4d37285c8fa7be@mail.gmail.com> Subject: Re: [CRED bug?] 2.6.29-rc3 don't survive on stress workload From: Vegard Nossum To: KOSAKI Motohiro Cc: David Howells , Serge Hallyn , LKML , Lee Schermerhorn Content-Type: multipart/mixed; boundary=001636c59763a8a43204628b2e2a Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --001636c59763a8a43204628b2e2a Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On Tue, Feb 10, 2009 at 6:41 AM, KOSAKI Motohiro wrote: > Hi > > I periodically test kernel on stress workload. > Unfortunately, recent kerenel don't survive >24H. > > It paniced with following stack. > Do you have any suggestions? > > thanks! That stack trace looks somewhat similar to the one in http://lkml.org/lkml/2009/2/6/136 If this is reproducible, maybe a patch like the one attached can help pinpoint it? Vegard -- "The animistic metaphor of the bug that maliciously sneaked in while the programmer was not looking is intellectually dishonest as it disguises that the error is the programmer's own creation." -- E. W. Dijkstra, EWD1036 --001636c59763a8a43204628b2e2a Content-Type: application/octet-stream; name="kref-warn_on.patch" Content-Disposition: attachment; filename="kref-warn_on.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_fr08e1wq0 ZGlmZiAtLWdpdCBhL2xpYi9rcmVmLmMgYi9saWIva3JlZi5jCmluZGV4IDE1OTlkYmYuLmE1NDdh ZDMgMTAwNjQ0Ci0tLSBhL2xpYi9rcmVmLmMKKysrIGIvbGliL2tyZWYuYwpAQCAtNDAsNyArNDAs NyBAQCB2b2lkIGtyZWZfaW5pdChzdHJ1Y3Qga3JlZiAqa3JlZikKICAqLwogdm9pZCBrcmVmX2dl dChzdHJ1Y3Qga3JlZiAqa3JlZikKIHsKLQlXQVJOX09OKCFhdG9taWNfcmVhZCgma3JlZi0+cmVm Y291bnQpKTsKKwlXQVJOX09OKGF0b21pY19yZWFkKCZrcmVmLT5yZWZjb3VudCkgPD0gMCk7CiAJ YXRvbWljX2luYygma3JlZi0+cmVmY291bnQpOwogCXNtcF9tYl9fYWZ0ZXJfYXRvbWljX2luYygp OwogfQpAQCAtNjMsNyArNjMsNyBAQCBpbnQga3JlZl9wdXQoc3RydWN0IGtyZWYgKmtyZWYsIHZv aWQgKCpyZWxlYXNlKShzdHJ1Y3Qga3JlZiAqa3JlZikpCiB7CiAJV0FSTl9PTihyZWxlYXNlID09 IE5VTEwpOwogCVdBUk5fT04ocmVsZWFzZSA9PSAodm9pZCAoKikoc3RydWN0IGtyZWYgKikpa2Zy ZWUpOwotCVdBUk5fT04oIWF0b21pY19yZWFkKCZrcmVmLT5yZWZjb3VudCkpOworCVdBUk5fT04o YXRvbWljX3JlYWQoJmtyZWYtPnJlZmNvdW50KSA8PSAwKTsKIAogCWlmIChhdG9taWNfZGVjX2Fu ZF90ZXN0KCZrcmVmLT5yZWZjb3VudCkpIHsKIAkJcmVsZWFzZShrcmVmKTsK --001636c59763a8a43204628b2e2a--