From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f196.google.com ([209.85.210.196]:39771 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731056AbfCaCRO (ORCPT ); Sat, 30 Mar 2019 22:17:14 -0400 Subject: Re: BUG: MAX_STACK_TRACE_ENTRIES too low! (2) References: <00000000000089a718058556e1d8@google.com> From: Bart Van Assche Message-ID: Date: Sat, 30 Mar 2019 19:17:09 -0700 MIME-Version: 1.0 In-Reply-To: <00000000000089a718058556e1d8@google.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: syzbot , akpm@linux-foundation.org, danitg@mellanox.com, darrick.wong@oracle.com, dledford@redhat.com, gustavo@embeddedor.com, jannh@google.com, jgg@ziepe.ca, johannes.berg@intel.com, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-xfs@vger.kernel.org, longman@redhat.com, mingo@kernel.org, paulmck@linux.vnet.ibm.com, peterz@infradead.org, roland@purestorage.com, shamir.rabinovitch@oracle.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tj@kernel.org, torvalds@linux-foundation.org, will.deacon@arm.com, xiyou.wangcong@gmail.com, Dmitry Vyukov On 3/30/19 2:58 PM, syzbot wrote: > syzbot has bisected this bug to: > > commit 669de8bda87b92ab9a2fc663b3f5743c2ad1ae9f > Author: Bart Van Assche > Date:   Thu Feb 14 23:00:54 2019 +0000 > >     kernel/workqueue: Use dynamic lockdep keys for workqueues > > bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17f1bacd200000 > start commit:   0e40da3e Merge tag 'kbuild-fixes-v5.1' of > git://git.kernel.. > git tree:       upstream > final crash:    https://syzkaller.appspot.com/x/report.txt?x=1409bacd200000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1009bacd200000 > kernel config:  https://syzkaller.appspot.com/x/.config?x=8dcdce25ea72bedf > dashboard link: > https://syzkaller.appspot.com/bug?extid=6f39a9deb697359fe520 > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10e1bacd200000 > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1120fe0f200000 > > Reported-by: syzbot+6f39a9deb697359fe520@syzkaller.appspotmail.com > Fixes: 669de8bda87b ("kernel/workqueue: Use dynamic lockdep keys for > workqueues") > > For information about bisection process see: > https://goo.gl/tpsmEJ#bisection Hi Dmitry, This bisection result doesn't make sense to me. As one can see, the message "BUG: MAX_STACK_TRACE_ENTRIES too low!" does not occur in the console output the above console output URL points at. Bart.