linux-kernel - Re: Re: WARNING in close_fs

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Message-ID: <0000000000008b7ae5056f01dda9@google.com>
Date:   Tue, 19 Jun 2018 10:18:06 -0700
From:   syzbot <syzbot+ceb2606025ec1cc3479c@...kaller.appspotmail.com>
To:     David Sterba <dsterba@...e.cz>
Cc:     clm@...com, dsterba@...e.com, dsterba@...e.cz, jbacik@...com,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: Re: WARNING in close_fs_devices

> On Tue, Jun 05, 2018 at 06:17:03AM -0700, syzbot wrote:
>> syzbot found the following crash on:

>> HEAD commit:    716a685fdb89 Merge branch 'x86-hyperv-for-linus' of  
>> git://..
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=15c5f46f800000
>> kernel config:   
>> https://syzkaller.appspot.com/x/.config?x=4f65cd4286737868
>> dashboard link:  
>> https://syzkaller.appspot.com/bug?extid=ceb2606025ec1cc3479c
>> compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
>> syzkaller  
>> repro:https://syzkaller.appspot.com/x/repro.syz?x=1251799f800000
>> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=177f3edf800000

>> IMPORTANT: if you fix the bug, please add the following tag to the  
>> commit:
>> Reported-by: syzbot+ceb2606025ec1cc3479c@...kaller.appspotmail.com

> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git  
> test-syzbot-fs-devices

unknown command "test"


> The patches are work in progress but pass fstests and should address
> these syzbot reports:

> https://syzkaller.appspot.com/bug?extid=ceb2606025ec1cc3479c
> syzbot+ceb2606025ec1cc3479c@...kaller.appspotmail.com

> https://syzkaller.appspot.com/bug?extid=909a5177749d7990ffa4
> syzbot+909a5177749d7990ffa4@...kaller.appspotmail.com

> https://syzkaller.appspot.com/bug?extid=923aa93978c7ad27a9b1
> syzbot+923aa93978c7ad27a9b1@...kaller.appspotmail.com