Messages in this thread | | | Date | Mon, 21 Feb 2022 15:23:58 +0100 | From | David Sterba <> | Subject | Re: [syzbot] WARNING in kthread_bind_mask |
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On Sun, Feb 20, 2022 at 10:27:23AM -0800, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: c5d9ae265b10 Merge tag 'for-linus' of git://git.kernel.org.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=11daf74a700000 > kernel config: https://syzkaller.appspot.com/x/.config?x=da674567f7b6043d > dashboard link: https://syzkaller.appspot.com/bug?extid=087b7effddeec0697c66 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > Unfortunately, I don't have any reproducer for this issue yet. > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+087b7effddeec0697c66@syzkaller.appspotmail.com > > BTRFS info (device loop3): disk space caching is enabled > BTRFS info (device loop3): has skinny extents > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 10327 at kernel/kthread.c:525 __kthread_bind_mask kernel/kthread.c:525 [inline]
520 static void __kthread_bind_mask(struct task_struct *p, const struct cpumask *mask, unsigned int state) 521 { 522 unsigned long flags; 523 524 if (!wait_task_inactive(p, state)) { 525 WARN_ON(1); 526 return; 527 }
That seems to be some internal task state inconsistency.
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