linux-kernel - Re: linux-next boot error (2)

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Message-ID: <CACT4Y+ajxhUaRg+XSuqQZN8rD96S820yMTWx2GpRVRb9Maz50g@mail.gmail.com>
Date:   Thu, 6 Sep 2018 10:52:59 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     David Howells <dhowells@...hat.com>
Cc:     syzbot <syzbot+762a577f56cfb1574647@...kaller.appspotmail.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Levin, Alexander" <alexander.levin@...izon.com>,
        LKML <linux-kernel@...r.kernel.org>, linux@...inikbrodowski.net,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        nikolaus.voss@...wensteinmedical.de,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: linux-next boot error (2)

On Thu, Sep 6, 2018 at 10:41 AM, David Howells <dhowells@...hat.com> wrote:
> Do we know what type of filesystem is on the root device?

ext4
The image is built with this script (you can find mkfs.ext4 there):
https://github.com/google/syzkaller/blob/master/tools/create-gce-image.sh


> Also, is there a way to tell if AppArmor denied something?

That I don't know. I guess it would have printed something.

This configuration worked before. And we don't see any errors on other trees.
A relatively recent addition was ext4 options "-O
^resize_inode,has_journal,ext_attr,extents,huge_file,flex_bg,dir_nlink,sparse_super".
But I think we already tested with them and that all worked.