Hi all!
Under high i/o load i always get many this warnings
WARNING: at fs/btrfs/extent-tree.c:6219
btrfs_alloc_free_block+0x354/0x360()
btrfs: block rsv returned -28
------------[ cut here ]------------
WARNING: at fs/btrfs/extent-tree.c:6219
btrfs_alloc_free_block+0x354/0x360()
Hardware name: EP45-DS4
Modules linked in:
Hardware name: EP45-DS4
tun ath5k ath
Modules linked in: i2c_i801 tun
Pid: 31233, comm: btrfs-endio-wri Tainted: G W
3.4.0-rc5-gentoo #2
ath5k ath i2c_i801
Pid: 30807, comm: btrfs-endio-wri Tainted: G W
3.4.0-rc5-gentoo #2
Call Trace:
Call Trace:
[<ffffffff8104779a>] warn_slowpath_common+0x7a/0xb0
[<ffffffff8104779a>] warn_slowpath_common+0x7a/0xb0
[<ffffffff810477e5>] warn_slowpath_null+0x15/0x20
[<ffffffff810477e5>] warn_slowpath_null+0x15/0x20
[<ffffffff813254a4>] btrfs_alloc_free_block+0x354/0x360
[<ffffffff813254a4>] btrfs_alloc_free_block+0x354/0x360
[<ffffffff81359c94>] ? read_extent_buffer+0xb4/0x110
[<ffffffff81070121>] ? get_parent_ip+0x11/0x50
[<ffffffff81359c94>] ? read_extent_buffer+0xb4/0x110
[<ffffffff810dd67a>] ? activate_page+0x8a/0xd0
[<ffffffff813139f0>] __btrfs_cow_block+0x130/0x4d0
[<ffffffff81a72495>] ? _raw_spin_unlock+0x15/0x40
[<ffffffff81313e87>] btrfs_cow_block+0xf7/0x1b0
[<ffffffff813139f0>] __btrfs_cow_block+0x130/0x4d0
[<ffffffff81317bf9>] btrfs_search_slot+0x199/0x920
[<ffffffff8132996f>] btrfs_lookup_csum+0x6f/0x170
[<ffffffff81313e87>] btrfs_cow_block+0xf7/0x1b0
[<ffffffff81317bf9>] btrfs_search_slot+0x199/0x920
[<ffffffff811105c7>] ? kmem_cache_alloc+0x97/0xb0
[<ffffffff8132996f>] btrfs_lookup_csum+0x6f/0x170
[<ffffffff811105c7>] ? kmem_cache_alloc+0x97/0xb0
[<ffffffff8132aa6c>] btrfs_csum_file_blocks+0xac/0x6a0
[<ffffffff8132aa6c>] btrfs_csum_file_blocks+0xac/0x6a0
[<ffffffff813381dd>] add_pending_csums.isra.44+0x3d/0x60
[<ffffffff8133ac3a>] btrfs_finish_ordered_io+0x26a/0x3b0
[<ffffffff8133ad95>] btrfs_writepage_end_io_hook+0x15/0x20
[<ffffffff813381dd>] add_pending_csums.isra.44+0x3d/0x60
[<ffffffff8133ac3a>] btrfs_finish_ordered_io+0x26a/0x3b0
[<ffffffff81356948>] end_extent_writepage+0x58/0x100
[<ffffffff811512fa>] ? bio_free+0x5a/0x60
[<ffffffff8133ad95>] btrfs_writepage_end_io_hook+0x15/0x20
[<ffffffff81356a54>] end_bio_extent_writepage+0x64/0x90
[<ffffffff81150158>] bio_endio+0x18/0x30
[<ffffffff8132d45c>] end_workqueue_fn+0x3c/0x50
[<ffffffff81356948>] end_extent_writepage+0x58/0x100
[<ffffffff811512fa>] ? bio_free+0x5a/0x60
[<ffffffff81363908>] worker_loop+0x148/0x560
[<ffffffff81356a54>] end_bio_extent_writepage+0x64/0x90
[<ffffffff81150158>] bio_endio+0x18/0x30
[<ffffffff81a714e8>] ? preempt_schedule+0x48/0x60
[<ffffffff813637c0>] ? btrfs_queue_worker+0x300/0x300
[<ffffffff8132d45c>] end_workqueue_fn+0x3c/0x50
[<ffffffff81363908>] worker_loop+0x148/0x560
[<ffffffff810637fe>] kthread+0x8e/0xa0
[<ffffffff813637c0>] ? btrfs_queue_worker+0x300/0x300
[<ffffffff810637fe>] kthread+0x8e/0xa0
[<ffffffff81a747a4>] kernel_thread_helper+0x4/0x10
[<ffffffff81a747a4>] kernel_thread_helper+0x4/0x10
[<ffffffff81063770>] ? kthread_freezable_should_stop+0x60/0x60
[<ffffffff81063770>] ? kthread_freezable_should_stop+0x60/0x60
[<ffffffff81a747a0>] ? gs_change+0x13/0x13
---[ end trace 0cba9c497fa7913f ]---
[<ffffffff81a747a0>] ? gs_change+0x13/0x13
---[ end trace 0cba9c497fa79140 ]---
--
Best Regards,
Alexey 'Alexxy' Shvetsov
Petersburg Nuclear Physics Institute, NRC Kurchatov Institute,
Gatchina, Russia
Department of Molecular and Radiation Biophysics
Gentoo Team Ru
Gentoo Linux Dev
mailto:alexxyum@xxxxxxxxx
mailto:alexxy@xxxxxxxxxx
mailto:alexxy@xxxxxxxxxxxxxxxx
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