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From: Miklos Szeredi <miklos@szeredi.hu>
Date: Thu, 3 Aug 2017 13:10:55 +0200
Message-ID: <CAJfpegvK9AhRVDhABWS=MkBSEfd9oGmOxTPVYSfPWGbTAbEhVw@mail.gmail.com>
Subject: Re: xattr hash error in 4.13-rc with overlayfs over ext4
To: Amir Goldstein <amir73il@gmail.com>
Cc: Tahsin Erdogan <tahsin@google.com>, "Theodore Ts'o" <tytso@mit.edu>,
        "linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        lkml <linux-kernel@vger.kernel.org>,
        "linux-unionfs@vger.kernel.org" <linux-unionfs@vger.kernel.org>
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On Tue, Aug 1, 2017 at 12:34 PM, Amir Goldstein <amir73il@gmail.com> wrote:
> On Mon, Jul 31, 2017 at 7:08 PM, Miklos Szeredi <miklos@szeredi.hu> wrote:
>> On Thu, Jul 27, 2017 at 10:54 PM, Tahsin Erdogan <tahsin@google.com> wrote:
>>> Still no luck reproducing the error. I am using the test script below
>>> at v4.13-rc2. Do you mind checking my script to see what I am missing?
>>
>> Don't know.   I can reliably reproduce it under UML, but not with a
>> VM.  What the hell is going on?
>>
>
> Is it the same ext4 image for UML and VM? same image size? same mkfs version?

Exact same starting image.  Same userspace.  Same EXT4 kernel config options.

Thanks,
Miklos