* WARNING: at fs/btrfs/extent-tree.c:6170 btrfs_alloc_free_block+0x354/0x360()
@ 2012-04-02 20:14 Alexey Shvetsov
0 siblings, 0 replies; only message in thread
From: Alexey Shvetsov @ 2012-04-02 20:14 UTC (permalink / raw)
To: linux-btrfs
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Hi!
I get this traces under high parallel io load on btrfs
btrfs: block rsv returned -28
------------[ cut here ]------------
WARNING: at fs/btrfs/extent-tree.c:6170 btrfs_alloc_free_block+0x354/0x360()
Hardware name: EP45-DS4
Modules linked in: tun ath5k ath i2c_i801
Pid: 20480, comm: btrfs-endio-wri Not tainted 3.3.0-gentoo #2
Call Trace:
[<ffffffff81046b6a>] warn_slowpath_common+0x7a/0xb0
[<ffffffff81046bb5>] warn_slowpath_null+0x15/0x20
[<ffffffff8132cf34>] btrfs_alloc_free_block+0x354/0x360
[<ffffffff8106fdb1>] ? get_parent_ip+0x11/0x50
[<ffffffff81333f00>] ? verify_parent_transid+0x160/0x160
[<ffffffff8135bf18>] ? read_extent_buffer+0xa8/0x180
[<ffffffff8131be0a>] __btrfs_cow_block+0x12a/0x440
[<ffffffff8131c211>] btrfs_cow_block+0xf1/0x1b0
[<ffffffff8131fc9e>] btrfs_search_slot+0x18e/0x8a0
[<ffffffff81378453>] ? tree_insert+0x83/0x210
[<ffffffff8133132f>] btrfs_lookup_csum+0x6f/0x170
[<ffffffff8110f7c7>] ? kmem_cache_alloc+0x97/0xb0
[<ffffffff8133237c>] btrfs_csum_file_blocks+0xac/0x670
[<ffffffff813412d0>] ? insert_reserved_file_extent.constprop.58+0x210/0x260
[<ffffffff8133f9bd>] add_pending_csums.isra.44+0x3d/0x60
[<ffffffff81342272>] btrfs_finish_ordered_io+0x242/0x320
[<ffffffff81342365>] btrfs_writepage_end_io_hook+0x15/0x20
[<ffffffff81359178>] end_extent_writepage+0x58/0x100
[<ffffffff81359284>] end_bio_extent_writepage+0x64/0x90
[<ffffffff8114f888>] bio_endio+0x18/0x30
[<ffffffff813356d1>] end_workqueue_fn+0x51/0x130
[<ffffffff81365d98>] worker_loop+0x148/0x560
[<ffffffff81a66a36>] ? preempt_schedule+0x46/0x60
[<ffffffff81365c50>] ? btrfs_queue_worker+0x300/0x300
[<ffffffff8106308e>] kthread+0x8e/0xa0
[<ffffffff81a69de4>] kernel_thread_helper+0x4/0x10
[<ffffffff81063000>] ? kthread_freezable_should_stop+0x60/0x60
[<ffffffff81a69de0>] ? gs_change+0x13/0x13
---[ end trace fd916ccd8369970e ]---
btrfs: block rsv returned -28
------------[ cut here ]------------
WARNING: at fs/btrfs/extent-tree.c:6170 btrfs_alloc_free_block+0x354/0x360()
Hardware name: EP45-DS4
Modules linked in: tun ath5k ath i2c_i801
Pid: 20480, comm: btrfs-endio-wri Tainted: G W 3.3.0-gentoo #2
Call Trace:
[<ffffffff81046b6a>] warn_slowpath_common+0x7a/0xb0
[<ffffffff81046bb5>] warn_slowpath_null+0x15/0x20
[<ffffffff8132cf34>] btrfs_alloc_free_block+0x354/0x360
[<ffffffff8135bf18>] ? read_extent_buffer+0xa8/0x180
[<ffffffff8131d387>] ? comp_keys+0x27/0x30
[<ffffffff8131be0a>] __btrfs_cow_block+0x12a/0x440
[<ffffffff8131c211>] btrfs_cow_block+0xf1/0x1b0
[<ffffffff8131fc9e>] btrfs_search_slot+0x18e/0x8a0
[<ffffffff81378453>] ? tree_insert+0x83/0x210
[<ffffffff8133132f>] btrfs_lookup_csum+0x6f/0x170
[<ffffffff8110f7c7>] ? kmem_cache_alloc+0x97/0xb0
[<ffffffff8133237c>] btrfs_csum_file_blocks+0xac/0x670
[<ffffffff813412d0>] ? insert_reserved_file_extent.constprop.58+0x210/0x260
[<ffffffff8133f9bd>] add_pending_csums.isra.44+0x3d/0x60
[<ffffffff81342272>] btrfs_finish_ordered_io+0x242/0x320
[<ffffffff81342365>] btrfs_writepage_end_io_hook+0x15/0x20
[<ffffffff81359178>] end_extent_writepage+0x58/0x100
[<ffffffff81359284>] end_bio_extent_writepage+0x64/0x90
[<ffffffff8114f888>] bio_endio+0x18/0x30
[<ffffffff813356d1>] end_workqueue_fn+0x51/0x130
[<ffffffff81365d98>] worker_loop+0x148/0x560
[<ffffffff81a66a36>] ? preempt_schedule+0x46/0x60
[<ffffffff81365c50>] ? btrfs_queue_worker+0x300/0x300
[<ffffffff8106308e>] kthread+0x8e/0xa0
[<ffffffff81a69de4>] kernel_thread_helper+0x4/0x10
[<ffffffff81063000>] ? kthread_freezable_should_stop+0x60/0x60
[<ffffffff81a69de0>] ? gs_change+0x13/0x13
---[ end trace fd916ccd8369970f ]---
--
Best Regards,
Alexey 'Alexxy' Shvetsov
Petersburg Nuclear Physics Institute, Russia
Department of Molecular and Radiation Biophysics
Gentoo Team Ru
Gentoo Linux Dev
mailto:alexxyum@gmail.com
mailto:alexxy@gentoo.org
mailto:alexxy@omrb.pnpi.spb.ru
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2012-04-02 20:14 WARNING: at fs/btrfs/extent-tree.c:6170 btrfs_alloc_free_block+0x354/0x360() Alexey Shvetsov
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