Re: INFO: task hung in vhost_init_device_iotlb

[Jason Wang]

On 2019/1/30 äå4:12, Dmitry Vyukov wrote:
> On Tue, Jan 29, 2019 at 5:06 PM Michael S. Tsirkin<mst@xxxxxxxxxx>  wrote:
> > On Tue, Jan 29, 2019 at 01:22:02AM -0800, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following crash on:
> > >
> > > HEAD commit:    983542434e6b Merge tag 'edac_fix_for_5.0' of git://git.ker..
> > > git tree:       upstream
> > > console output:https://syzkaller.appspot.com/x/log.txt?x=17476498c00000
> > > kernel config:https://syzkaller.appspot.com/x/.config?x=505743eba4e4f68
> > > dashboard link:https://syzkaller.appspot.com/bug?extid=40e28a8bd59d10ed0c42
> > > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> > >
> > > Unfortunately, I don't have any reproducer for this crash yet.
> > Hmm nothing obvious below. Generic corruption elsewhere?
> Hard to say, a silent memory corruption is definitely possible.
> If there is nothing obvious let's wait, maybe syzbot will come up with
> a repro or we get more such hangs so that it will be possible to rule
> out flakes/corruptions.

It hasn't been reproduced for a while. We can invalid this and see if we 
can get it again.

So

#syz invalid

Thanks