From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f196.google.com ([209.85.210.196]:42523 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726352AbfCKPTi (ORCPT ); Mon, 11 Mar 2019 11:19:38 -0400 Message-ID: <1552317574.45180.94.camel@acm.org> Subject: Re: BUG: MAX_STACK_TRACE_ENTRIES too low! From: Bart Van Assche Date: Mon, 11 Mar 2019 08:19:34 -0700 In-Reply-To: <00000000000080952b0583d183f0@google.com> References: <00000000000080952b0583d183f0@google.com> Content-Type: text/plain; charset="UTF-7" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: syzbot , akpm@linux-foundation.org, darrick.wong@oracle.com, dledford@redhat.com, gustavo@embeddedor.com, hch@infradead.org, 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, mingo@redhat.com, paulmck@linux.vnet.ibm.com, peterz@infradead.org, roland@purestorage.com, sean.hefty@intel.com, shamir.rabinovitch@oracle.com, swise@opengridcomputing.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tj@kernel.org, torvalds@linux-foundation.org, will.deacon@arm.com, xiyou.wangcong@gmail.com On Mon, 2019-03-11 at 06:26 -0700, syzbot wrote: +AD4 syzbot has bisected this bug to: +AD4 +AD4 commit 669de8bda87b92ab9a2fc663b3f5743c2ad1ae9f +AD4 Author: Bart Van Assche +ADw-bvanassche+AEA-acm.org+AD4 +AD4 Date: Thu Feb 14 23:00:54 2019 +-0000 +AD4 +AD4 kernel/workqueue: Use dynamic lockdep keys for workqueues +AD4 +AD4 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x+AD0-17dec757200000 +AD4 start commit: 669de8bd kernel/workqueue: Use dynamic lockdep keys for wo.. +AD4 git tree: upstream +AD4 final crash: https://syzkaller.appspot.com/x/report.txt?x+AD0-143ec757200000 +AD4 console output: https://syzkaller.appspot.com/x/log.txt?x+AD0-103ec757200000 +AD4 kernel config: https://syzkaller.appspot.com/x/.config?x+AD0-bd349f14600e1305 +AD4 dashboard link: https://syzkaller.appspot.com/bug?extid+AD0-78923eea7cf44364f4fb +AD4 userspace arch: amd64 +AD4 syz repro: https://syzkaller.appspot.com/x/repro.syz?x+AD0-149c858d200000 +AD4 C reproducer: https://syzkaller.appspot.com/x/repro.c?x+AD0-111aee33200000 +AD4 +AD4 Reported-by: syzbot+-78923eea7cf44364f4fb+AEA-syzkaller.appspotmail.com +AD4 Fixes: 669de8bd (+ACI-kernel/workqueue: Use dynamic lockdep keys for +AD4 workqueues+ACI) I think this issue has been fixed by a commit that went upstream yesterday. Hence: +ACM-syz fix: workqueue, lockdep: Fix an alloc+AF8-workqueue() error path