On Thu, May 21, 2020 at 4:09 PM Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> wrote: > > On 2020/05/21 5:53, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 806d8acc USB: dummy-hcd: use configurable endpoint naming .. > > git tree: https://github.com/google/kasan.git usb-fuzzer > > console output: https://syzkaller.appspot.com/x/log.txt?x=16c9ece2100000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=d800e9bad158025f > > dashboard link: https://syzkaller.appspot.com/bug?extid=f5bc30abd8916982419c > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > > Unfortunately, I don't have any reproducer for this crash yet. > > This seems to be a mislabeling due to '?' in all lines in a trace. > > #syz dup: INFO: task hung in wdm_flush
It seems that unwind from __schedule is broken. Fixing the unwinder may be the action item here, otherwise we will get an infinite number of such reports.
