From mboxrd@z Thu Jan 1 00:00:00 1970 From: Craig Johnson Subject: Re: btrfsck: couldn't open because of unsupported option features (8) Date: Fri, 20 May 2011 22:20:15 -0500 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: linux-btrfs@vger.kernel.org, crajohns@gmail.com Return-path: In-Reply-To: List-ID: I've made a little progress - compiled from the tmp branch of btrfs-progs-unstable, and the unsupported feature error message goes away. However, now I segfault when running any command after three parent transid failures. Gdb gives me this: Starting program: /home/xbmc/btrfs-progs-unstable/btrfs-debug-tree /dev= /sda1 parent transid verify failed on 6038227976192 wanted 337418 found 33785= 3 parent transid verify failed on 6038227976192 wanted 337418 found 33785= 3 parent transid verify failed on 6038227976192 wanted 337418 found 33785= 3 Program received signal SIGSEGV, Segmentation fault. find_first_block_group (root=3D0x61d1b0, path=3D0x61ef10, key=3D0x7ffff= fffe240) at extent-tree.c:3028 3028 if (slot >=3D btrfs_header_nritems(leaf)) { Any possible way to recover from this? On Fri, May 20, 2011 at 8:08 AM, Craig Johnson wro= te: > After upgrading from 2.6.39-rc7 to 2.6.39 this morning, I tried to > mount my 3 disk btrfs volume (no subvolumes, space caching enabled, > lzo compression) and received some parent transid errors (going back > to rc7 didn't help, though): > > btrfs: disk space caching is enabled > parent transid verify failed on 6038227976192 wanted 337418 found 337= 853 > parent transid verify failed on 6038227976192 wanted 337418 found 337= 853 > parent transid verify failed on 6038227976192 wanted 337418 found 337= 853 > parent transid verify failed on 6038227976192 wanted 337418 found 337= 853 > parent transid verify failed on 6038227976192 wanted 337418 found 337= 853 > Failed to read block groups: -5 > btrfs: open_ctree failed > > Tried to mount without space_cache give the same message. > > Trying to run btrfsck (or btrfs-debug-tree), compiled from git gives = me this: > > > couldn't open because of unsupported option features (8). > btrfsck: disk-io.c:683: open_ctree_fd: Assertion `!(1)' failed. > Aborted > > > I see an Ubuntu bug (748340 - > https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/748340) > with a similar output (they get an unsupported option features (2) > instead of (8)), but there isn't any resolution that I see. =A0Is the= re > anything I can do to resolve this? =A0I can't mount degraded or ro or > anything. =A0Thanks! > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html