Re: WARNING in get_unlocked_entry

From: Matthew Wilcox
Date: Wed Oct 31 2018 - 15:18:33 EST


On Wed, Oct 31, 2018 at 10:46:19AM +0100, Dmitry Vyukov wrote:
> On Wed, Oct 31, 2018 at 4:18 AM, Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
> > On Tue, Oct 30, 2018 at 08:00:03AM -0700, syzbot wrote:
> >> syzbot found the following crash on:
> >>
> >> HEAD commit: 4b42745211af Merge tag 'armsoc-soc' of git://git.kernel.or..
> >> git tree: upstream
> >> console output: https://syzkaller.appspot.com/x/log.txt?x=1187d06d400000
> >> kernel config: https://syzkaller.appspot.com/x/.config?x=93932074d01b4a5
> >> dashboard link: https://syzkaller.appspot.com/bug?extid=4fd0c066d82852499145
> >> compiler: gcc (GCC) 8.0.1 20180413 (experimental)
> >>
> >> Unfortunately, I don't have any reproducer for this crash yet.
> >
> > Hmmpf. Would have been nice if syzbot had caught this during its tests
> > of the -next tree ...
>
> What -next tree do you mean? If it satisfies the criteria we can add it:
> https://github.com/google/syzkaller/issues/592

I meant linux-next, as in the merge of everybody's -next trees. Reading
that bug, it seems outside your scope for now ;-(