linux-kernel - Re: xattr hash error in 4.13-rc with overlayfs over ext4

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Message-ID: <CAJfpegvK9AhRVDhABWS=MkBSEfd9oGmOxTPVYSfPWGbTAbEhVw@mail.gmail.com>
Date:   Thu, 3 Aug 2017 13:10:55 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Amir Goldstein <amir73il@...il.com>
Cc:     Tahsin Erdogan <tahsin@...gle.com>,
        "Theodore Ts'o" <tytso@....edu>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        "linux-unionfs@...r.kernel.org" <linux-unionfs@...r.kernel.org>
Subject: Re: xattr hash error in 4.13-rc with overlayfs over ext4

On Tue, Aug 1, 2017 at 12:34 PM, Amir Goldstein <amir73il@...il.com> wrote:
> On Mon, Jul 31, 2017 at 7:08 PM, Miklos Szeredi <miklos@...redi.hu> wrote:
>> On Thu, Jul 27, 2017 at 10:54 PM, Tahsin Erdogan <tahsin@...gle.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