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[Bug 1429812] Re: btrfs remounted read-only

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1429812@xxxxxxxxxxxxxxxxxx>
Date: Sat, 09 May 2015 04:17:46 -0000
Reply-to: Bug 1429812 <1429812@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1429812

Title:
  btrfs remounted read-only

Status in linux package in Ubuntu:
  Expired

Bug description:
  A server with btfrs remounted a hardware implemented RAID 5 partition
  read-only and wrongly assumed it was out of space on the device. After
  running the fsck.btrfs it was possible to mount file system again.

  Error:
  [2623680.594264] ------------[ cut here ]------------
  [2623680.594293] WARNING: CPU: 9 PID: 26745 at /build/buildd/linux-3.13.0/fs/btrfs/super.c:254 __btrfs_abort_transaction+0x50/0x110 [btrfs]()
  [2623680.594295] btrfs: Transaction aborted (error -28)
  [2623680.594297] Modules linked in: intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel gpio_ich aesni_intel aes_x86_64 lrw gf128mul mac_hid glue_helper ablk_helper cryptd ipmi_si lpc_ich i7core_edac serio_raw edac_core lp parport btrfs xor raid6_pq libcrc32c igb qla2xxx i2c_algo_bit dca scsi_transport_fc ahci ptp libahci hpsa scsi_tgt pps_core
  [2623680.594320] CPU: 9 PID: 26745 Comm: postgres Tainted: G          I   3.13.0-45-generic #74-Ubuntu
  [2623680.594322] Hardware name: HP ProLiant DL180 G6  , BIOS O20 02/01/2012
  [2623680.594324]  0000000000000009 ffff8813938ab818 ffffffff81720eb6 ffff8813938ab860
  [2623680.594328]  ffff8813938ab850 ffffffff810677cd 00000000ffffffe4 ffff880a0383e800
  [2623680.594331]  ffff881403f10be0 ffffffffa01fdbe0 0000000000001697 ffff8813938ab8b0
  [2623680.594335] Call Trace:
  [2623680.594343]  [<ffffffff81720eb6>] dump_stack+0x45/0x56
  [2623680.594349]  [<ffffffff810677cd>] warn_slowpath_common+0x7d/0xa0
  [2623680.594352]  [<ffffffff8106783c>] warn_slowpath_fmt+0x4c/0x50
  [2623680.594359]  [<ffffffffa0161f00>] __btrfs_abort_transaction+0x50/0x110 [btrfs]
  [2623680.594368]  [<ffffffffa0173132>] __btrfs_free_extent+0x282/0xa20 [btrfs]
  [2623680.594383]  [<ffffffffa01d01e4>] ? btrfs_merge_delayed_refs+0x1b4/0x3d0 [btrfs]
  [2623680.594392]  [<ffffffffa017817a>] run_clustered_refs+0x95a/0x1060 [btrfs]
  [2623680.594402]  [<ffffffffa017c6f0>] btrfs_run_delayed_refs+0xe0/0x540 [btrfs]
  [2623680.594414]  [<ffffffffa018c79e>] btrfs_commit_transaction+0x4e/0x970 [btrfs]
  [2623680.594423]  [<ffffffffa01757ca>] reserve_metadata_bytes+0x23a/0x8f0 [btrfs]
  [2623680.594429]  [<ffffffff81012609>] ? __switch_to+0x169/0x4c0
  [2623680.594438]  [<ffffffffa0176aeb>] btrfs_delalloc_reserve_metadata+0x15b/0x4b0 [btrfs]
  [2623680.594450]  [<ffffffffa019d7d7>] __btrfs_buffered_write+0x257/0x490 [btrfs]
  [2623680.594455]  [<ffffffff812c3cc5>] ? SYSC_semtimedop+0x8d5/0xd50
  [2623680.594467]  [<ffffffffa019dc25>] btrfs_file_aio_write+0x215/0x520 [btrfs]
  [2623680.594472]  [<ffffffff811d8aef>] ? file_update_time+0x3f/0xd0
  [2623680.594478]  [<ffffffff811bd45a>] do_sync_write+0x5a/0x90
  [2623680.594480]  [<ffffffff811bdbe4>] vfs_write+0xb4/0x1f0
  [2623680.594483]  [<ffffffff811be619>] SyS_write+0x49/0xa0
  [2623680.594487]  [<ffffffff8173196d>] system_call_fastpath+0x1a/0x1f
  [2623680.594489] ---[ end trace fe251c9e01676c97 ]---
  [2623680.594492] BTRFS error (device sdb1) in __btrfs_free_extent:5783: errno=-28 No space left
  [2623680.594556] BTRFS error (device sdb1) in __btrfs_free_extent:5783: errno=-28 No space left
  [2623680.594557] BTRFS info (device sdb1): forced readonly
  [2623680.594559] BTRFS debug (device sdb1): run_one_delayed_ref returned -28
  [2623680.594560] BTRFS error (device sdb1) in btrfs_run_delayed_refs:2730: errno=-28 No space left
  [2623680.605314] BTRFS debug (device sdb1): run_one_delayed_ref returned -28
  [2623680.605317] BTRFS error (device sdb1) in btrfs_run_delayed_refs:2730: errno=-28 No space left
  [2623680.608983] ------------[ cut here ]------------
  [2623680.609001] WARNING: CPU: 11 PID: 591 at /build/buildd/linux-3.13.0/fs/btrfs/inode.c:4768 btrfs_invalidate_inodes+0x1b6/0x1c0 [btrfs]()
  [2623680.609002] Modules linked in: intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel gpio_ich aesni_intel aes_x86_64 lrw gf128mul mac_hid glue_helper ablk_helper cryptd ipmi_si lpc_ich i7core_edac serio_raw edac_core lp parport btrfs xor raid6_pq libcrc32c igb qla2xxx i2c_algo_bit dca scsi_transport_fc ahci ptp libahci hpsa scsi_tgt pps_core
  [2623680.609020] CPU: 11 PID: 591 Comm: btrfs-transacti Tainted: G        W I   3.13.0-45-generic #74-Ubuntu
  [2623680.609022] Hardware name: HP ProLiant DL180 G6  , BIOS O20 02/01/2012
  [2623680.609023]  0000000000000009 ffff880a063c9d10 ffffffff81720eb6 0000000000000000
  [2623680.609026]  ffff880a063c9d48 ffffffff810677cd ffff880a06ddc800 ffff881403027c80
  [2623680.609029]  ffff880a063c9dc0 ffff880a06b81000 ffff881403027cf0 ffff880a063c9d58
  [2623680.609032] Call Trace:
  [2623680.609036]  [<ffffffff81720eb6>] dump_stack+0x45/0x56
  [2623680.609039]  [<ffffffff810677cd>] warn_slowpath_common+0x7d/0xa0
  [2623680.609041]  [<ffffffff810678aa>] warn_slowpath_null+0x1a/0x20
  [2623680.609053]  [<ffffffffa0197886>] btrfs_invalidate_inodes+0x1b6/0x1c0 [btrfs]
  [2623680.609065]  [<ffffffffa0187c74>] btrfs_cleanup_one_transaction+0xc4/0x5a0 [btrfs]
  [2623680.609076]  [<ffffffffa0188234>] btrfs_cleanup_transaction+0xe4/0x550 [btrfs]
  [2623680.609081]  [<ffffffff8109a88a>] ? try_to_wake_up+0x1fa/0x2c0
  [2623680.609092]  [<ffffffffa018c86b>] ? btrfs_commit_transaction+0x11b/0x970 [btrfs]
  [2623680.609097]  [<ffffffff810ab0b0>] ? prepare_to_wait_event+0x100/0x100
  [2623680.609108]  [<ffffffffa01888a6>] transaction_kthread+0x206/0x240 [btrfs]
  [2623680.609119]  [<ffffffffa01886a0>] ? btrfs_cleanup_transaction+0x550/0x550 [btrfs]
  [2623680.609124]  [<ffffffff8108b572>] kthread+0xd2/0xf0
  [2623680.609126]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  [2623680.609129]  [<ffffffff817318bc>] ret_from_fork+0x7c/0xb0
  [2623680.609131]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  [2623680.609133] ---[ end trace fe251c9e01676c98 ]---
  [2623680.618130] ------------[ cut here ]------------
  [2623680.618154] WARNING: CPU: 11 PID: 591 at /build/buildd/linux-3.13.0/fs/btrfs/inode.c:4768 btrfs_invalidate_inodes+0x1b6/0x1c0 [btrfs]()
  [2623680.618156] Modules linked in: intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel gpio_ich aesni_intel aes_x86_64 lrw gf128mul mac_hid glue_helper ablk_helper cryptd ipmi_si lpc_ich i7core_edac serio_raw edac_core lp parport btrfs xor raid6_pq libcrc32c igb qla2xxx i2c_algo_bit dca scsi_transport_fc ahci ptp libahci hpsa scsi_tgt pps_core
  [2623680.618177] CPU: 11 PID: 591 Comm: btrfs-transacti Tainted: G        W I   3.13.0-45-generic #74-Ubuntu
  [2623680.618178] Hardware name: HP ProLiant DL180 G6  , BIOS O20 02/01/2012
  [2623680.618180]  0000000000000009 ffff880a063c9d10 ffffffff81720eb6 0000000000000000
  [2623680.618184]  ffff880a063c9d48 ffffffff810677cd ffff880a06ddc800 ffff881403027c80
  [2623680.618187]  ffff880a063c9dc0 ffff880a06b81000 ffff881403027cf0 ffff880a063c9d58
  [2623680.618190] Call Trace:
  [2623680.618196]  [<ffffffff81720eb6>] dump_stack+0x45/0x56
  [2623680.618200]  [<ffffffff810677cd>] warn_slowpath_common+0x7d/0xa0
  [2623680.618202]  [<ffffffff810678aa>] warn_slowpath_null+0x1a/0x20
  [2623680.618214]  [<ffffffffa0197886>] btrfs_invalidate_inodes+0x1b6/0x1c0 [btrfs]
  [2623680.618225]  [<ffffffffa0187c74>] btrfs_cleanup_one_transaction+0xc4/0x5a0 [btrfs]
  [2623680.618236]  [<ffffffffa0188234>] btrfs_cleanup_transaction+0xe4/0x550 [btrfs]
  [2623680.618240]  [<ffffffff8109a88a>] ? try_to_wake_up+0x1fa/0x2c0
  [2623680.618251]  [<ffffffffa018c86b>] ? btrfs_commit_transaction+0x11b/0x970 [btrfs]
  [2623680.618256]  [<ffffffff810ab0b0>] ? prepare_to_wait_event+0x100/0x100
  [2623680.618266]  [<ffffffffa01888a6>] transaction_kthread+0x206/0x240 [btrfs]
  [2623680.618277]  [<ffffffffa01886a0>] ? btrfs_cleanup_transaction+0x550/0x550 [btrfs]
  [2623680.618281]  [<ffffffff8108b572>] kthread+0xd2/0xf0
  [2623680.618284]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  [2623680.618287]  [<ffffffff817318bc>] ret_from_fork+0x7c/0xb0
  [2623680.618289]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  [2623680.618291] ---[ end trace fe251c9e01676c99 ]---

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References

[Bug 1429812] [NEW] btrfs remounted read-only
From: Ricardo, 2015-03-09