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Date:   Sat, 30 Mar 2019 14:58:01 -0700
From:   syzbot <syzbot+6f39a9deb697359fe520@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, bvanassche@....org, danitg@...lanox.com,
        darrick.wong@...cle.com, dledford@...hat.com,
        gustavo@...eddedor.com, jannh@...gle.com, jgg@...pe.ca,
        johannes.berg@...el.com, leon@...nel.org,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-xfs@...r.kernel.org, longman@...hat.com, mingo@...nel.org,
        paulmck@...ux.vnet.ibm.com, peterz@...radead.org,
        roland@...estorage.com, shamir.rabinovitch@...cle.com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de, tj@...nel.org,
        torvalds@...ux-foundation.org, will.deacon@....com,
        xiyou.wangcong@...il.com
Subject: Re: BUG: MAX_STACK_TRACE_ENTRIES too low! (2)

syzbot has bisected this bug to:

commit 669de8bda87b92ab9a2fc663b3f5743c2ad1ae9f
Author: Bart Van Assche <bvanassche@....org>
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@...kaller.appspotmail.com
Fixes: 669de8bda87b ("kernel/workqueue: Use dynamic lockdep keys for  
workqueues")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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