Currently under review by Ubuntu Release Team, after which a call for testing, validation and feedback will be made here as a comment.
https://launchpad.net/ubuntu/trusty/+queue?queue_state=1&queue_text =btrfs-tools ** Description changed: + [Impact] + + * fsck fails and uses incorrect sector size + + [Test Case] + + * see below + + [Regression Potential] + + * low, upstream patch used and tested in all later releases + + == Comment: #0 - ABDUL HALEEM <[email protected]> - 2015-02-13 01:50:18 == *** Problem description *** btrfs/060 test of xfstests segfaults with unhandled signal 11 at 00003fff88820000 nip 0000000010065ac0 lr 0000000010065b18 code 30001 messages in dmesg. *** uname output *** Linux ubuntu 3.18.0-13-generic #14-Ubuntu SMP Fri Feb 6 09:57:41 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux *** Steps to reproduce *** 1. Power8 Machine installed Ubuntu 15.04 on a PowerVM LPAR. 2. Download git://oss.sgi.com/xfs/cmds/xfstests.git , compile and build 3. create 6 loop devices with btrfs file system on it. 4. local.config file will look like this: export TEST_DEV=/dev/loop0 export TEST_DIR=/mnt/test export SCRATCH_DEV_POOL="/dev/loop1 /dev/loop2 /dev/loop3 /dev/loop4 /dev/loop5" export SCRATCH_MNT=/mnt/scratch 5. run the test : ./check btrfs/060 6. test failed with errors in dmesg and the command btrfsck core dumped. root@ubuntu:~/xfstests# cat /root/xfstests/results/btrfs/060.out.bad QA output created by 060 Silence is golden ./common/rc: line 1932: 3378 Segmentation fault btrfsck $device > $tmp.fsck 2>&1 _check_btrfs_filesystem: filesystem on /dev/loop1 is inconsistent (see /root/xfstests/results//btrfs/060.full) Core file, tests logs and syslogs are attached. dmesg logs: [ 717.146506] BTRFS info (device loop5): disk space caching is enabled [ 717.150413] BTRFS: creating UUID tree [ 717.939847] BTRFS info (device loop5): relocating block group 1676083200 flags 9 [ 720.914279] BTRFS info (device loop5): relocating block group 37683200 flags 12 [ 723.476025] BTRFS info (device loop5): found 7 extents [ 725.093216] BTRFS info (device loop5): relocating block group 20971520 flags 10 [ 726.615751] BTRFS info (device loop5): found 1 extents [ 727.151299] BTRFS info (device loop5): relocating block group 12582912 flags 1 [ 727.808751] BTRFS info (device loop5): relocating block group 4194304 flags 4 [ 728.294908] BTRFS info (device loop5): relocating block group 0 flags 2 [ 728.780977] BTRFS info (device loop5): found 1 extents [ 730.204584] btrfsck[3378]: unhandled signal 11 at 00003fff88820000 nip 0000000010065ac0 lr 0000000010065b18 code 30001 [ 1483.937916] btrfsck[3640]: unhandled signal 11 at 00003fffaa030000 nip 0000000010065ac0 lr 0000000010065b18 code 30001 [ 1525.291669] btrfsck[3644]: unhandled signal 11 at 00003fffaf300000 nip 0000000010065ac0 lr 0000000010065b18 code 30001 Thanks == Comment: #5 - Chandan B. Rajendra <[email protected]> - 2015-02-18 10:11:23 == The following upstream commit will fix the issue: 2c0e02a568c7db99922e9080407f8fc22d1991bd Author: David Sterba <[email protected]> Date: Wed May 28 11:25:24 2014 +0200 - btrfs-progs: make free space checker work on non-4k sectorsize filesystems - - The value of sector for space cache was hardcoded to 4k, and used to - calculate bitmap sizes. In kernel, the BITS_PER_BITMAP is derived from - PAGE_CACHE_SIZE which is not available for userspace, that can also deal - with filesystem of varying sectorsize. - - Signed-off-by: David Sterba <[email protected]> + btrfs-progs: make free space checker work on non-4k sectorsize + filesystems + The value of sector for space cache was hardcoded to 4k, and used to + calculate bitmap sizes. In kernel, the BITS_PER_BITMAP is derived from + PAGE_CACHE_SIZE which is not available for userspace, that can also deal + with filesystem of varying sectorsize. - Without this patch, In io_ctl_check_crc(), we end up passing an incorrect "length" value to the crc32c_le() function. + Signed-off-by: David Sterba <[email protected]> + + Without this patch, In io_ctl_check_crc(), we end up passing an + incorrect "length" value to the crc32c_le() function. The patch (2c0e02a568c7db99922e9080407f8fc22d1991bd) needs to picked to help resolve this issue on Ubuntu. ** Changed in: btrfs-tools (Ubuntu Trusty) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1438032 Title: BTRFS - btrfsck: Segmentation fault (core dumped) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1438032/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
