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Subject: Re: WARNING in kvm_arch_vcpu_ioctl_run (3)
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syzbot has bisected this bug to:

commit 706249c222f68471b6f8e9e8e9b77665c404b226
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Fri Jul 24 13:06:37 2015 +0000

     locking/static_keys: Rework update logic

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=175cc587200000
start commit:   1d2ba7fe Merge tag 'fbdev-v4.19-rc7' of https://github.com..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=14dcc587200000
console output: https://syzkaller.appspot.com/x/log.txt?x=10dcc587200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c0af03fe452b65fb
dashboard link: https://syzkaller.appspot.com/bug?extid=760a73552f47a8cd0fd9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=156ad231400000

Reported-by: syzbot+760a73552f47a8cd0fd9@syzkaller.appspotmail.com
Fixes: 706249c222f6 ("locking/static_keys: Rework update logic")

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