linux-kernel - Re: WARNING in handle_exception

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Date:   Thu, 05 Nov 2020 09:17:08 -0800
From:   syzbot <syzbot+4e78ae6b12b00b9d1042@...kaller.appspotmail.com>
To:     bp@...en8.de, hpa@...or.com, jmattson@...gle.com, joro@...tes.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        mingo@...hat.com, pbonzini@...hat.com, peterz@...radead.org,
        sean.j.christopherson@...el.com, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de, vkuznets@...hat.com, wanpengli@...cent.com,
        will@...nel.org, x86@...nel.org
Subject: Re: WARNING in handle_exception_nmi

syzbot suspects this issue was fixed by commit:

commit f8e48a3dca060e80f672d398d181db1298fbc86c
Author: Peter Zijlstra <peterz@...radead.org>
Date:   Thu Oct 22 10:23:02 2020 +0000

    lockdep: Fix preemption WARN for spurious IRQ-enable

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17bbfa8a500000
start commit:   d3d45f82 Merge tag 'pinctrl-v5.9-2' of git://git.kernel.or..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=89ab6a0c48f30b49
dashboard link: https://syzkaller.appspot.com/bug?extid=4e78ae6b12b00b9d1042
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12f24a0b900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=167b838f900000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: lockdep: Fix preemption WARN for spurious IRQ-enable

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