Re: [syzbot] possible deadlock in kvm_synchronize_tsc

[Paolo Bonzini]

On 24/03/21 08:24, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    1c273e10 Merge tag 'zonefs-5.12-rc4' of git://git.kernel.o..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1063d14ed00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=6abda3336c698a07
> dashboard link: https://syzkaller.appspot.com/bug?extid=9a89b866d3fc11acc3b6
> userspace arch: i386
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bf56f6d00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=174e36dcd00000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+9a89b866d3fc11acc3b6@xxxxxxxxxxxxxxxxxxxxxxxxx

#syz dup: possible deadlock in scheduler_tick