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From:   Rainer Fiebig <jrf@mailbox.org>
To:     linux-kernel@vger.kernel.org
Cc:     Guenter Roeck <linux@roeck-us.net>, Theodore Ts'o <tytso@mit.edu>,
        Andreas Dilger <adilger.kernel@dilger.ca>,
        linux-ext4@vger.kernel.org
Subject: Re: ext4 file system corruption with v4.19.3 / v4.19.4
Date:   Tue, 27 Nov 2018 16:50:05 +0100
Message-ID: <2469172.LfQfxQsF9r@siriux>
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Am Dienstag, 27. November 2018, 06:32:08 schrieb Guenter Roeck:
> [trying again, this time with correct kernel.org address]
>=20
> Hi,
>=20
> I have seen the following and similar problems several times,
> with both v4.19.3 and v4.19.4:
>=20
> Nov 23 04:32:25 mars kernel: [112668.673671] EXT4-fs error (device sd=
b1):
> ext4_iget:4831: inode #12602889: comm git: bad extra_isize 33661 (ino=
de
> size 256) Nov 23 04:32:25 mars kernel: [112668.675217] Aborting journ=
al on
> device sdb1-8. Nov 23 04:32:25 mars kernel: [112668.676681] EXT4-fs (=
sdb1):
> Remounting filesystem read-only Nov 23 04:32:25 mars kernel:
> [112668.808886] EXT4-fs error (device sdb1): ext4_iget:4831: inode
> #12602881: comm rm: bad extra_isize 33685 (inode size 256) ...
>=20
> Nov 25 00:12:43 saturn kernel: [59377.725984] EXT4-fs error (device s=
da1):
> ext4_lookup:1578: inode #238034131: comm updatedb.mlocat: deleted ino=
de
> referenced: 238160407 Nov 25 00:12:43 saturn kernel: [59377.766638]
> Aborting journal on device sda1-8. Nov 25 00:12:43 saturn kernel:
> [59377.779372] EXT4-fs (sda1): Remounting filesystem read-only ...
>=20
> Nov 24 01:52:31 saturn kernel: [189085.240016] EXT4-fs error (device =
sda1):
> ext4_lookup:1578: inode #52038457: comm nfsd: deleted inode reference=
d:
> 52043796 Nov 24 01:52:31 saturn kernel: [189085.263427] Aborting jour=
nal on
> device sda1-8. Nov 24 01:52:31 saturn kernel: [189085.275313] EXT4-fs=

> (sda1): Remounting filesystem read-only
>=20
>=20
> The same systems running v4.18.6 never experienced a problem.
>=20
> Has anyone else seen similar problems ? Is there anything I can do
> to help tracking down the problem ?
>=20
> Thanks,
> Guenter

This is already being discussed here:=20
https://bugzilla.kernel.org/show_bug.cgi?id=3D201685

I guess bisecting between 4.18.0 and 4.19.0 by someone who is proficien=
t in=20
this and is affected by the problem would be immensely valuable.

I'm not affected and am a bit reluctant to expose my production system =
to=20
this. ;)

So long!

Rainer Fiebig=20

=2D-=20
The truth always turns out to be simpler than you thought.
Richard Feynman
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