From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:37278 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753172Ab2FYSsx convert rfc822-to-8bit (ORCPT ); Mon, 25 Jun 2012 14:48:53 -0400 Received: from merkaba.localnet (ppp-88-217-126-64.dynamic.mnet-online.de [88.217.126.64]) by mail.lichtvoll.de (Postfix) with ESMTPSA id 9092B195 for ; Mon, 25 Jun 2012 20:48:52 +0200 (CEST) From: Martin Steigerwald To: linux-btrfs@vger.kernel.org Subject: Re: 3.5-rc4: BTRFS unmountable after hard lockup Date: Mon, 25 Jun 2012 20:48:51 +0200 References: <201206252029.34545.Martin@lichtvoll.de> (sfid-20120625_204005_007114_552D1AD6) In-Reply-To: <201206252029.34545.Martin@lichtvoll.de> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Message-Id: <201206252048.52022.Martin@lichtvoll.de> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Am Montag, 25. Juni 2012 schrieb Martin Steigerwald: > Hi! > > I got a X server / drm related crash or hard lockup. After I rebooted I > tried to mount the BTRFS on my esata disk. It has big metadata > (mkfs.btrfs -l 32768 -n 32768). > > > I got: > [… backtrace …] > BTRFS was not mounted. After trying to mount again, I got: > > merkaba:~> ps aux | grep " D" | grep -v grep > root 3446 0.0 0.0 0 0 ? D 20:22 0:00 > [btrfs-transacti] root 4666 0.0 0.0 18640 1184 tty1 D+ > 20:24 0:00 mount /mnt/amazon-daten > > Any hints how to get my disk mounted? > > I have a fairly recent backup, but I would prefer when I do not have to > replay it. Its one of my expectations for a file system: be safe on > sudden write interruptions like power loss or crash. Well, I wanted to have back my disk ASAP. So I just tried that btrfs-zero- log mantra again. It worked. Hopefully the backtrace still gives you a clue on what has happened. I thought these kind of errors where gone now. (Yeah, I know its still experimental… no indoctrination requested;-) Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7