From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:45721 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752695AbbGFVwe (ORCPT ); Mon, 6 Jul 2015 17:52:34 -0400 Received: from svh-gw.merlins.org ([173.11.111.145]:53280 helo=legolas.merlins.org) by mail1.merlins.org with esmtps (Cipher TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80 #2) id 1ZCEJ9-0007rA-19 for ; Mon, 06 Jul 2015 14:52:14 -0700 Received: from merlin by legolas.merlins.org with local (Exim 4.80) (envelope-from ) id 1ZCEJ8-0003xM-1J for linux-btrfs@vger.kernel.org; Mon, 06 Jul 2015 14:52:10 -0700 Date: Mon, 6 Jul 2015 14:21:56 -0700 From: Marc MERLIN To: linux-btrfs@vger.kernel.org Message-ID: <20150706212156.GY17274@merlins.org> MIME-Version: 1.0 Subject: btrfs check --repair crash, and btrfs-cleaner crash Sender: linux-btrfs-owner@vger.kernel.org List-ID: myth:~# btrfs check --repair /dev/mapper/crypt_sdd1 enabling repair mode Checking filesystem on /dev/mapper/crypt_sdd1 UUID: 024ba4d0-dacb-438d-9f1b-eeb34083fe49 checking extents cmds-check.c:4486: add_data_backref: Assertion `back->bytes != max_size` failed. btrfs[0x8066a73] btrfs[0x8066aa4] btrfs[0x8067991] btrfs[0x806b4ab] btrfs[0x806b9a3] btrfs[0x806c5b2] btrfs(cmd_check+0x1088)[0x806eddf] btrfs(main+0x153)[0x80557c6] /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb75064d3] btrfs[0x80557ec] myth:~# btrfs --version btrfs-progs v4.0 Is anyone interested in getting data off this filesystem or having me try newer code/a patch? filesystem is 10TB-ish, so sending an image isn't going to be easy though. I can mount with -o ro without it crashing, but if I drop ro, it then tries to do something and crashes, and unfortunately the error doesn't make it to syslog Screenshot: http://marc.merlins.org/tmp/btrfs_crash.jpg Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901