From: Chandan Rajendra Subject: Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Date: Wed, 04 Jan 2017 11:32:42 +0530 Message-ID: <6085340.JSrffQ0Szo@localhost.localdomain> References: <20170104161808.5ad7b4fd@kryten> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: Stephen Rothwell , jack@suse.cz, linux-kernel@vger.kernel.org, axboe@fb.com, Paul Mackerras , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linuxppc-dev@lists.ozlabs.org To: Anton Blanchard Return-path: In-Reply-To: <20170104161808.5ad7b4fd@kryten> 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 On Wednesday, January 04, 2017 04:18:08 PM Anton Blanchard wrote: > 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. Hi, The patch at https://patchwork.kernel.org/patch/9488235/ should fix the bug. > > 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 > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- chandan