From: luigi burdo Subject: Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Date: Wed, 4 Jan 2017 07:34:00 +0000 Message-ID: References: <20170104161808.5ad7b4fd@kryten> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="_000_HE1PR01MB1548C63C28DE2F5F06A0EBECC8610HE1PR01MB1548eurp_" Cc: "linux-fsdevel@vger.kernel.org" , "linux-ext4@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" To: Anton Blanchard , "jack@suse.cz" , "Michael Ellerman" , Benjamin Herrenschmidt , Paul Mackerras , "Stephen Rothwell" , "axboe@fb.com" Return-path: In-Reply-To: <20170104161808.5ad7b4fd@kryten> Content-Language: it-IT List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" List-Id: linux-ext4.vger.kernel.org --_000_HE1PR01MB1548C63C28DE2F5F06A0EBECC8610HE1PR01MB1548eurp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, it is present on ppc not le too. found it on Ubuntu Mate 16.10 PPC with kernel 4.9 rc6 PPC64 on P5020/P5040 Thanks Luigi ________________________________ Da: Linuxppc-dev per conto di Anton Blanchard Inviato: mercoled=EC 4 gennaio 2017 06.18 A: jack@suse.cz; Michael Ellerman; Benjamin Herrenschmidt; Paul Mackerras; = Stephen Rothwell; axboe@fb.com Cc: linux-fsdevel@vger.kernel.org; linux-ext4@vger.kernel.org; linuxppc-dev= @lists.ozlabs.org; linux-kernel@vger.kernel.org Oggetto: ext4 filesystem corruption with 4.10-rc2 on ppc64le Hi, I'm consistently seeing ext4 filesystem corruption using a mainline kernel. It doesn't take much to trigger it - download a ppc64le Ubuntu cloud image, boot it in KVM and run: sudo apt-get update sudo apt-get dist-upgrade sudo reboot And it never makes it back up, dying with rather severe filesystem corruption. I've narrowed it down to: 64e1c57fa474 ("ext4: Use clean_bdev_aliases() instead of iteration") e64855c6cfaa ("fs: Add helper to clean bdev aliases under a bh and use it") ce98321bf7d2 ("fs: Remove unmap_underlying_metadata") Backing these patches out fixes the issue. Anton --_000_HE1PR01MB1548C63C28DE2F5F06A0EBECC8610HE1PR01MB1548eurp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,

it is present on ppc not le too.

found it on Ubuntu Mate 16.10 PPC with kernel 4.9 rc6 PPC64 on P502= 0/P5040

Thanks

Luigi

Da: Linuxppc-dev <linu= xppc-dev-bounces+intermediadc=3Dhotmail.com@lists.ozlabs.org> per co= nto di Anton Blanchard <anton@samba.org>
Inviato: mercoled=EC 4 gennaio 2017 06.18
A: jack@suse.cz; Michael Ellerman; Benjamin Herrenschmidt; Paul Mack= erras; Stephen Rothwell; axboe@fb.com
Cc: linux-fsdevel@vger.kernel.org; linux-ext4@vger.kernel.org; linux= ppc-dev@lists.ozlabs.org; linux-kernel@vger.kernel.org
Oggetto: ext4 filesystem corruption with 4.10-rc2 on ppc64le

Hi,

I'm consistently seeing ext4 filesystem corruption using a mainline
kernel. It doesn't take much to trigger it - download a ppc64le Ubuntu
cloud image, boot it in KVM and run:

sudo apt-get update
sudo apt-get dist-upgrade
sudo reboot

And it never makes it back up, dying with rather severe filesystem
corruption.

I've narrowed it down to:

64e1c57fa474 ("ext4: Use clean_bdev_aliases() instead of iteration&quo= t;)
e64855c6cfaa ("fs: Add helper to clean bdev aliases under a bh and use= it")
ce98321bf7d2 ("fs: Remove unmap_underlying_metadata")

Backing these patches out fixes the issue.

Anton

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