Am 19.12.2011 19:51, schrieb Gregory Farnum: > On Mon, Dec 19, 2011 at 12:28 AM, Jens Rehpöhler > <jens.rehpoehler@xxxxxxxx> wrote: >> Good morning !! >> >> i got the following warning as soon as i use btrfs as underlaying >> filesystem (for stability reasons i use ext4). I converted one OSD back >> to btrfs to give it another try. >> >> kernel: 3.2rc6 >> ceph: ceph/stable uptodate 0.39-9-g37e7a52-1~bpo60+1 >> dist: debian squeeze >> >> [ 8930.692232] ------------[ cut here ]------------ >> [ 8930.692282] WARNING: at fs/btrfs/inode.c:1969 >> btrfs_orphan_commit_root+0x7f/0x9b [btrfs]() >> [ 8930.692327] Hardware name: X8DT3 >> [ 8930.692349] Modules linked in: loop aes_x86_64 aes_generic cbc >> kvm_intel xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap >> macvlan tun brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph >> libceph bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma >> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev >> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif >> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common >> scsi_mod igb dca [last unloaded: scsi_wait_scan] >> [ 8930.698021] Pid: 336, comm: kworker/2:1 Tainted: G C >> 3.2.0-rc6 #2 >> [ 8930.698050] Call Trace: >> [ 8930.698075] [<ffffffff81047257>] ? warn_slowpath_common+0x78/0x8c >> [ 8930.698116] [<ffffffffa011ee22>] ? >> btrfs_orphan_commit_root+0x7f/0x9b [btrfs] >> [ 8930.698171] [<ffffffffa01182f3>] ? commit_fs_roots+0xa2/0x159 [btrfs] >> [ 8930.698208] [<ffffffffa0118fcd>] ? >> btrfs_commit_transaction+0x3e2/0x71b [btrfs] >> [ 8930.698254] [<ffffffff8103b794>] ? pick_next_task_fair+0xfc/0x10e >> [ 8930.698285] [<ffffffff81060b69>] ? wake_up_bit+0x20/0x20 >> [ 8930.698320] [<ffffffffa011952f>] ? btrfs_end_transaction+0x12/0x12 >> [btrfs] >> [ 8930.698361] [<ffffffffa0119541>] ? do_async_commit+0x12/0x1b [btrfs] >> [ 8930.698392] [<ffffffff8105cd0e>] ? process_one_work+0x1cc/0x2ea >> [ 8930.698420] [<ffffffff8105cf59>] ? worker_thread+0x12d/0x247 >> [ 8930.698448] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea >> [ 8930.698476] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea >> [ 8930.698504] [<ffffffff8106072d>] ? kthread+0x7a/0x82 >> [ 8930.698531] [<ffffffff813316b4>] ? kernel_thread_helper+0x4/0x10 >> [ 8930.698560] [<ffffffff810606b3>] ? kthread_worker_fn+0x147/0x147 >> [ 8930.698588] [<ffffffff813316b0>] ? gs_change+0x13/0x13 >> [ 8930.698614] ---[ end trace 3b774941bf3fc465 ]--- >> >> Anything to worry about ? > This doesn't look familiar to me — if you can reproduce it (or maybe > just provide more detail) the btrfs folks will probably be interested. > -Greg Hi Greg, reproduction is possible, if i destroy one osd und start a fresh resync (actual 550 GB of data). After a short while i get: Dec 20 19:45:22 fcmsnode4 kernel: [170010.477676] ------------[ cut here ]------------ Dec 20 19:45:22 fcmsnode4 kernel: [170010.477727] WARNING: at fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]() Dec 20 19:45:22 fcmsnode4 kernel: [170010.477772] Hardware name: X8DT3 Dec 20 19:45:22 fcmsnode4 kernel: [170010.477795] Modules linked in: zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common scsi_mod igb dca [last unloaded: scsi_wait_scan] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478130] Pid: 6790, comm: btrfs-transacti Tainted: G WC 3.2.0-rc6 #2 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478173] Call Trace: Dec 20 19:45:22 fcmsnode4 kernel: [170010.478199] [<ffffffff81047257>] ? warn_slowpath_common+0x78/0x8c Dec 20 19:45:22 fcmsnode4 kernel: [170010.478237] [<ffffffffa011ee22>] ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478289] [<ffffffffa01182f3>] ? commit_fs_roots+0xa2/0x159 [btrfs] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478332] [<ffffffff810ece7c>] ? kmem_cache_free+0x12/0x9e Dec 20 19:45:22 fcmsnode4 kernel: [170010.478377] [<ffffffffa0118fcd>] ? btrfs_commit_transaction+0x3e2/0x71b [btrfs] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478423] [<ffffffff81053026>] ? del_timer_sync+0x34/0x3e Dec 20 19:45:22 fcmsnode4 kernel: [170010.478453] [<ffffffff81328237>] ? schedule_timeout+0xa8/0xd7 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478482] [<ffffffff81060b69>] ? wake_up_bit+0x20/0x20 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478517] [<ffffffffa0113c8d>] ? transaction_kthread+0x173/0x22d [btrfs] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478560] [<ffffffffa0113b1a>] ? find_and_setup_root+0xdc/0xdc [btrfs] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478600] [<ffffffffa0113b1a>] ? find_and_setup_root+0xdc/0xdc [btrfs] Dec 20 19:45:22 fcmsnode4 kernel: [170010.478630] [<ffffffff8106072d>] ? kthread+0x7a/0x82 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478658] [<ffffffff813316b4>] ? kernel_thread_helper+0x4/0x10 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478687] [<ffffffff810606b3>] ? kthread_worker_fn+0x147/0x147 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478716] [<ffffffff813316b0>] ? gs_change+0x13/0x13 Dec 20 19:45:22 fcmsnode4 kernel: [170010.478742] ---[ end trace 3b774941bf3fc467 ]--- Dec 20 19:48:57 fcmsnode4 kernel: [170225.535021] ------------[ cut here ]------------ Dec 20 19:48:57 fcmsnode4 kernel: [170225.535072] WARNING: at fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]() Dec 20 19:48:57 fcmsnode4 kernel: [170225.535117] Hardware name: X8DT3 Dec 20 19:48:57 fcmsnode4 kernel: [170225.535139] Modules linked in: zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common scsi_mod igb dca [last unloaded: scsi_wait_scan] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535471] Pid: 6790, comm: btrfs-transacti Tainted: G WC 3.2.0-rc6 #2 Dec 20 19:48:57 fcmsnode4 kernel: [170225.535514] Call Trace: Dec 20 19:48:57 fcmsnode4 kernel: [170225.535539] [<ffffffff81047257>] ? warn_slowpath_common+0x78/0x8c Dec 20 19:48:57 fcmsnode4 kernel: [170225.535577] [<ffffffffa011ee22>] ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535629] [<ffffffffa01182f3>] ? commit_fs_roots+0xa2/0x159 [btrfs] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535661] [<ffffffff810ece7c>] ? kmem_cache_free+0x12/0x9e Dec 20 19:48:57 fcmsnode4 kernel: [170225.535697] [<ffffffffa0118fcd>] ? btrfs_commit_transaction+0x3e2/0x71b [btrfs] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535743] [<ffffffff81053026>] ? del_timer_sync+0x34/0x3e Dec 20 19:48:57 fcmsnode4 kernel: [170225.535773] [<ffffffff81328237>] ? schedule_timeout+0xa8/0xd7 Dec 20 19:48:57 fcmsnode4 kernel: [170225.535803] [<ffffffff81060b69>] ? wake_up_bit+0x20/0x20 Dec 20 19:48:57 fcmsnode4 kernel: [170225.535838] [<ffffffffa0113c8d>] ? transaction_kthread+0x173/0x22d [btrfs] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535876] [<ffffffffa0113b1a>] ? find_and_setup_root+0xdc/0xdc [btrfs] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535914] [<ffffffffa0113b1a>] ? find_and_setup_root+0xdc/0xdc [btrfs] Dec 20 19:48:57 fcmsnode4 kernel: [170225.535944] [<ffffffff8106072d>] ? kthread+0x7a/0x82 Dec 20 19:48:57 fcmsnode4 kernel: [170225.535971] [<ffffffff813316b4>] ? kernel_thread_helper+0x4/0x10 Dec 20 19:48:57 fcmsnode4 kernel: [170225.536000] [<ffffffff810606b3>] ? kthread_worker_fn+0x147/0x147 Dec 20 19:48:57 fcmsnode4 kernel: [170225.536028] [<ffffffff813316b0>] ? gs_change+0x13/0x13 Dec 20 19:48:57 fcmsnode4 kernel: [170225.536054] ---[ end trace 3b774941bf3fc468 ]--- Seems to me, that this happens if the btrfs is under heavy load. Thanks and merry christmas ! Jens -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
