Re: INFO: task hung in stop_sync_thread (2)

From: Dmitry Vyukov
Date: Fri Mar 30 2018 - 12:54:59 EST


On Fri, Mar 30, 2018 at 6:46 PM, syzbot
<syzbot+5fe074c01b2032ce9618@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> syzbot has found reproducer for the following crash on net-next commit

/\/\/\/\/\/\

now syzbot can test fixes

> 18845557fd6fc1998f2d0d8c30467f86db587529 (Thu Mar 29 20:24:06 2018 +0000)
> Merge tag 'wireless-drivers-next-for-davem-2018-03-29' of
> git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
> syzbot dashboard link:
> https://syzkaller.appspot.com/bug?extid=5fe074c01b2032ce9618
>
> So far this crash happened 2 times on net-next.
> C reproducer: https://syzkaller.appspot.com/x/repro.c?id=5531070485233664
> syzkaller reproducer:
> https://syzkaller.appspot.com/x/repro.syz?id=5632385408303104
> Raw console output:
> https://syzkaller.appspot.com/x/log.txt?id=6520566391504896
> Kernel config: https://syzkaller.appspot.com/x/.config?id=-37309782588693906
> compiler: gcc (GCC) 7.1.1 20170620
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+5fe074c01b2032ce9618@xxxxxxxxxxxxxxxxxxxxxxxxx
> It will help syzbot understand when the bug is fixed.