Messages in this thread | | | Date | Sun, 24 Mar 2019 01:04:23 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: BUG: soft lockup in kvm_vm_release |
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On Sat, 23 Mar 2019, syzbot wrote:
> syzbot has bisected this bug to: > > commit 80eb865768703c0f85a0603762742ae1dedf21f0 > Author: Andrea Parri <andrea.parri@amarulasolutions.com> > Date: Tue Nov 27 11:01:10 2018 +0000 > > sched/fair: Clean up comment in nohz_idle_balance()
I.m pretty sure that this bisect is bogus. The commit changes a comment not code.
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1362209b200000 > start commit: 57902dc0 Merge tag 'riscv-for-linus-5.0-rc7' of git://git... > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=10e2209b200000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1762209b200000 > kernel config: https://syzkaller.appspot.com/x/.config?x=ee434566c893c7b1 > dashboard link: https://syzkaller.appspot.com/bug?extid=6349a512c2938b2ad058 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14287e78c00000 > > Reported-by: syzbot+6349a512c2938b2ad058@syzkaller.appspotmail.com > Fixes: 80eb86576870 ("sched/fair: Clean up comment in nohz_idle_balance()") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection
If I understand that correctly, then the bisect does not try to revert the commit which it identified on top of the tree where it started to bisect.
I think that'd be a reasonably simple to do extra data point, at least when the commit reverts cleanly on head.
Thanks,
tglx
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