* Task Hang
@ 2014-03-04 14:19 Mark Murawski
2014-03-04 14:58 ` Josef Bacik
0 siblings, 1 reply; 4+ messages in thread
From: Mark Murawski @ 2014-03-04 14:19 UTC (permalink / raw)
To: linux-btrfs
I have btrfs as the fs for a backuppc box. updatedb was running at the
same time as a massive rsync.
Mar 4 08:31:00 office-backup kernel: INFO: task updatedb.mlocat:903
blocked for more than 120 seconds.
Mar 4 08:31:00 office-backup kernel: Not tainted 3.13.2 #3
Mar 4 08:31:00 office-backup kernel: "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 4 08:31:00 office-backup kernel: updatedb.mlocat D 0000000000000000
0 903 899 0x00000000
Mar 4 08:31:00 office-backup kernel: ffff88007cad6270 0000000000000086
ffff88007c0ee900 0000000000004000
Mar 4 08:31:00 office-backup kernel: ffff88005a705fd8 ffff88007cad6270
000000541a6be000 ffff88007b9ac000
Mar 4 08:31:00 office-backup kernel: ffff88001ad2ef68 ffff880001f97000
ffff8800452d4480 ffffffff812c3e5c
Mar 4 08:31:00 office-backup kernel: Call Trace:
Mar 4 08:31:00 office-backup kernel: [<ffffffff812c3e5c>] ?
btrfs_map_bio+0x4ac/0x5a0
Mar 4 08:31:00 office-backup kernel: [<ffffffff812b79c0>] ?
repair_io_failure+0x210/0x210
Mar 4 08:31:00 office-backup kernel: [<ffffffff810d9a40>] ?
__lock_page+0x70/0x70
Mar 4 08:31:00 office-backup kernel: [<ffffffff817b8177>] ?
io_schedule+0x87/0xd0
Mar 4 08:31:00 office-backup kernel: [<ffffffff810d9a49>] ?
sleep_on_page+0x9/0x10
Mar 4 08:31:00 office-backup kernel: [<ffffffff817b8742>] ?
__wait_on_bit+0x52/0x80
Mar 4 08:31:00 office-backup kernel: [<ffffffff81294d21>] ?
btree_submit_bio_hook+0xe1/0x110
Mar 4 08:31:00 office-backup kernel: [<ffffffff810d9cc3>] ?
wait_on_page_bit+0x73/0x80
Mar 4 08:31:00 office-backup kernel: [<ffffffff8109bdc0>] ?
wake_atomic_t_function+0x30/0x30
Mar 4 08:31:00 office-backup kernel: [<ffffffff812bb2ba>] ?
read_extent_buffer_pages+0x2aa/0x2e0
Mar 4 08:31:00 office-backup kernel: [<ffffffff810da355>] ?
add_to_page_cache_lru+0x25/0x40
Mar 4 08:31:00 office-backup kernel: [<ffffffff81344b21>] ?
radix_tree_insert+0x91/0x250
Mar 4 08:31:00 office-backup kernel: [<ffffffff81292a10>] ?
verify_parent_transid+0x170/0x170
Mar 4 08:31:00 office-backup kernel: [<ffffffff812949a9>] ?
btree_read_extent_buffer_pages.constprop.126+0xa9/0x110
Mar 4 08:31:00 office-backup kernel: [<ffffffff81294f23>] ?
read_tree_block+0x33/0x60
Mar 4 08:31:00 office-backup kernel: [<ffffffff812775dc>] ?
read_block_for_search.isra.45+0x18c/0x3b0
Mar 4 08:31:00 office-backup kernel: [<ffffffff81276d47>] ?
comp_keys+0x27/0x30
Mar 4 08:31:00 office-backup kernel: [<ffffffff81279c8c>] ?
btrfs_search_slot+0x41c/0x920
Mar 4 08:31:00 office-backup kernel: [<ffffffff812b1641>] ?
btrfs_get_token_16+0x61/0xf0
Mar 4 08:31:00 office-backup kernel: [<ffffffff812919f5>] ?
btrfs_lookup_inode+0x25/0xa0
Mar 4 08:31:00 office-backup kernel: [<ffffffff81113ef0>] ?
kmem_cache_alloc+0xc0/0xe0
Mar 4 08:31:00 office-backup kernel: [<ffffffff812a6313>] ?
btrfs_iget+0x103/0x520
Mar 4 08:31:00 office-backup kernel: [<ffffffff8128eb1f>] ?
btrfs_lookup_dir_item+0x9f/0xd0
Mar 4 08:31:00 office-backup kernel: [<ffffffff812a843b>] ?
btrfs_lookup_dentry+0x3db/0x4c0
Mar 4 08:31:00 office-backup kernel: [<ffffffff812a8529>] ?
btrfs_lookup+0x9/0x20
Mar 4 08:31:00 office-backup kernel: [<ffffffff81120624>] ?
lookup_real+0x14/0x50
Mar 4 08:31:00 office-backup kernel: [<ffffffff811211f2>] ?
__lookup_hash+0x32/0x50
Mar 4 08:31:00 office-backup kernel: [<ffffffff81121b38>] ?
lookup_slow+0x48/0xc0
Mar 4 08:31:00 office-backup kernel: [<ffffffff81123a91>] ?
path_lookupat+0x711/0x760
Mar 4 08:31:00 office-backup kernel: [<ffffffff81123b0f>] ?
filename_lookup+0x2f/0xd0
Mar 4 08:31:00 office-backup kernel: [<ffffffff81121d77>] ?
getname_flags+0xb7/0x190
Mar 4 08:31:00 office-backup kernel: [<ffffffff811269ee>] ?
user_path_at_empty+0x5e/0xb0
Mar 4 08:31:00 office-backup kernel: [<ffffffff8111bd6d>] ?
cp_new_stat+0x10d/0x120
Mar 4 08:31:00 office-backup kernel: [<ffffffff8111bef1>] ?
vfs_fstatat+0x41/0x90
Mar 4 08:31:00 office-backup kernel: [<ffffffff8111c0c2>] ?
SyS_newlstat+0x12/0x30
Mar 4 08:31:00 office-backup kernel: [<ffffffff817bb7a2>] ?
system_call_fastpath+0x16/0x1b
Mar 4 08:55:01 office-backup kernel: INFO: task updatedb.mlocat:903
blocked for more than 120 seconds.
Mar 4 08:55:01 office-backup kernel: Not tainted 3.13.2 #3
Mar 4 08:55:01 office-backup kernel: "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 4 08:55:01 office-backup kernel: updatedb.mlocat D 0000000000000000
0 903 899 0x00000000
Mar 4 08:55:01 office-backup kernel: ffff88007cad6270 0000000000000086
ffff88007bb020d0 0000000000004000
Mar 4 08:55:01 office-backup kernel: ffff88005a705fd8 ffff88007cad6270
00000055b6aee000 ffff88007b9ac000
Mar 4 08:55:01 office-backup kernel: ffff8800048282e8 ffff880076f80000
ffff8800272a09c0 ffffffff812c3e5c
Mar 4 08:55:01 office-backup kernel: Call Trace:
Mar 4 08:55:01 office-backup kernel: [<ffffffff812c3e5c>] ?
btrfs_map_bio+0x4ac/0x5a0
Mar 4 08:55:01 office-backup kernel: [<ffffffff812b79c0>] ?
repair_io_failure+0x210/0x210
Mar 4 08:55:01 office-backup kernel: [<ffffffff810d9a40>] ?
__lock_page+0x70/0x70
Mar 4 08:55:01 office-backup kernel: [<ffffffff817b8177>] ?
io_schedule+0x87/0xd0
Mar 4 08:55:01 office-backup kernel: [<ffffffff810d9a49>] ?
sleep_on_page+0x9/0x10
Mar 4 08:55:01 office-backup kernel: [<ffffffff817b8742>] ?
__wait_on_bit+0x52/0x80
Mar 4 08:55:01 office-backup kernel: [<ffffffff81294d21>] ?
btree_submit_bio_hook+0xe1/0x110
Mar 4 08:55:01 office-backup kernel: [<ffffffff810d9cc3>] ?
wait_on_page_bit+0x73/0x80
Mar 4 08:55:01 office-backup kernel: [<ffffffff8109bdc0>] ?
wake_atomic_t_function+0x30/0x30
Mar 4 08:55:01 office-backup kernel: [<ffffffff812bb2ba>] ?
read_extent_buffer_pages+0x2aa/0x2e0
Mar 4 08:55:01 office-backup kernel: [<ffffffff810da355>] ?
add_to_page_cache_lru+0x25/0x40
Mar 4 08:55:01 office-backup kernel: [<ffffffff81292a10>] ?
verify_parent_transid+0x170/0x170
Mar 4 08:55:01 office-backup kernel: [<ffffffff812949a9>] ?
btree_read_extent_buffer_pages.constprop.126+0xa9/0x110
Mar 4 08:55:01 office-backup kernel: [<ffffffff81294f23>] ?
read_tree_block+0x33/0x60
Mar 4 08:55:01 office-backup kernel: [<ffffffff812775dc>] ?
read_block_for_search.isra.45+0x18c/0x3b0
Mar 4 08:55:01 office-backup kernel: [<ffffffff81276d47>] ?
comp_keys+0x27/0x30
Mar 4 08:55:01 office-backup kernel: [<ffffffff81279c8c>] ?
btrfs_search_slot+0x41c/0x920
Mar 4 08:55:01 office-backup kernel: [<ffffffff812b1641>] ?
btrfs_get_token_16+0x61/0xf0
Mar 4 08:55:01 office-backup kernel: [<ffffffff812919f5>] ?
btrfs_lookup_inode+0x25/0xa0
Mar 4 08:55:01 office-backup kernel: [<ffffffff81113ef0>] ?
kmem_cache_alloc+0xc0/0xe0
Mar 4 08:55:01 office-backup kernel: [<ffffffff812a6313>] ?
btrfs_iget+0x103/0x520
Mar 4 08:55:01 office-backup kernel: [<ffffffff8128eb1f>] ?
btrfs_lookup_dir_item+0x9f/0xd0
Mar 4 08:55:01 office-backup kernel: [<ffffffff812a843b>] ?
btrfs_lookup_dentry+0x3db/0x4c0
Mar 4 08:55:01 office-backup kernel: [<ffffffff812a8529>] ?
btrfs_lookup+0x9/0x20
Mar 4 08:55:01 office-backup kernel: [<ffffffff81120624>] ?
lookup_real+0x14/0x50
Mar 4 08:55:01 office-backup kernel: [<ffffffff811211f2>] ?
__lookup_hash+0x32/0x50
Mar 4 08:55:01 office-backup kernel: [<ffffffff81121b38>] ?
lookup_slow+0x48/0xc0
Mar 4 08:55:01 office-backup kernel: [<ffffffff81123a91>] ?
path_lookupat+0x711/0x760
Mar 4 08:55:01 office-backup kernel: [<ffffffff81123b0f>] ?
filename_lookup+0x2f/0xd0
Mar 4 08:55:01 office-backup kernel: [<ffffffff81121d77>] ?
getname_flags+0xb7/0x190
Mar 4 08:55:01 office-backup kernel: [<ffffffff811269ee>] ?
user_path_at_empty+0x5e/0xb0
Mar 4 08:55:01 office-backup kernel: [<ffffffff8111bd6d>] ?
cp_new_stat+0x10d/0x120
Mar 4 08:55:01 office-backup kernel: [<ffffffff8111bef1>] ?
vfs_fstatat+0x41/0x90
Mar 4 08:55:01 office-backup kernel: [<ffffffff8111c0c2>] ?
SyS_newlstat+0x12/0x30
Mar 4 08:55:01 office-backup kernel: [<ffffffff817bb7a2>] ?
system_call_fastpath+0x16/0x1b
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: Task Hang
2014-03-04 14:19 Task Hang Mark Murawski
@ 2014-03-04 14:58 ` Josef Bacik
2014-03-06 16:48 ` Mark Murawski
0 siblings, 1 reply; 4+ messages in thread
From: Josef Bacik @ 2014-03-04 14:58 UTC (permalink / raw)
To: Mark Murawski, linux-btrfs
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 03/04/2014 09:19 AM, Mark Murawski wrote:
> I have btrfs as the fs for a backuppc box. updatedb was running at
> the same time as a massive rsync.
>
> Mar 4 08:31:00 office-backup kernel: INFO: task
> updatedb.mlocat:903 blocked for more than 120 seconds. Mar 4
> 08:31:00 office-backup kernel: Not tainted 3.13.2 #3 Mar 4
> 08:31:00 office-backup kernel: "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar
> 4 08:31:00 office-backup kernel: updatedb.mlocat D
> 0000000000000000 0 903 899 0x00000000 Mar 4 08:31:00
> office-backup kernel: ffff88007cad6270 0000000000000086
> ffff88007c0ee900 0000000000004000 Mar 4 08:31:00 office-backup
> kernel: ffff88005a705fd8 ffff88007cad6270 000000541a6be000
> ffff88007b9ac000 Mar 4 08:31:00 office-backup kernel:
> ffff88001ad2ef68 ffff880001f97000 ffff8800452d4480
> ffffffff812c3e5c Mar 4 08:31:00 office-backup kernel: Call Trace:
> Mar 4 08:31:00 office-backup kernel: [<ffffffff812c3e5c>] ?
> btrfs_map_bio+0x4ac/0x5a0 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff812b79c0>] ? repair_io_failure+0x210/0x210 Mar 4
> 08:31:00 office-backup kernel: [<ffffffff810d9a40>] ?
> __lock_page+0x70/0x70 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff817b8177>] ? io_schedule+0x87/0xd0 Mar 4 08:31:00
> office-backup kernel: [<ffffffff810d9a49>] ?
> sleep_on_page+0x9/0x10 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80 Mar 4 08:31:00
> office-backup kernel: [<ffffffff81294d21>] ?
> btree_submit_bio_hook+0xe1/0x110 Mar 4 08:31:00 office-backup
> kernel: [<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80 Mar 4
> 08:31:00 office-backup kernel: [<ffffffff8109bdc0>] ?
> wake_atomic_t_function+0x30/0x30 Mar 4 08:31:00 office-backup
> kernel: [<ffffffff812bb2ba>] ?
> read_extent_buffer_pages+0x2aa/0x2e0 Mar 4 08:31:00 office-backup
> kernel: [<ffffffff810da355>] ? add_to_page_cache_lru+0x25/0x40 Mar
> 4 08:31:00 office-backup kernel: [<ffffffff81344b21>] ?
> radix_tree_insert+0x91/0x250 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff81292a10>] ? verify_parent_transid+0x170/0x170 Mar 4
> 08:31:00 office-backup kernel: [<ffffffff812949a9>] ?
> btree_read_extent_buffer_pages.constprop.126+0xa9/0x110 Mar 4
> 08:31:00 office-backup kernel: [<ffffffff81294f23>] ?
> read_tree_block+0x33/0x60 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff812775dc>] ? read_block_for_search.isra.45+0x18c/0x3b0
> Mar 4 08:31:00 office-backup kernel: [<ffffffff81276d47>] ?
> comp_keys+0x27/0x30 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920 Mar 4
> 08:31:00 office-backup kernel: [<ffffffff812b1641>] ?
> btrfs_get_token_16+0x61/0xf0 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0 Mar 4 08:31:00
> office-backup kernel: [<ffffffff81113ef0>] ?
> kmem_cache_alloc+0xc0/0xe0 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff812a6313>] ? btrfs_iget+0x103/0x520 Mar 4 08:31:00
> office-backup kernel: [<ffffffff8128eb1f>] ?
> btrfs_lookup_dir_item+0x9f/0xd0 Mar 4 08:31:00 office-backup
> kernel: [<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0 Mar
> 4 08:31:00 office-backup kernel: [<ffffffff812a8529>] ?
> btrfs_lookup+0x9/0x20 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff81120624>] ? lookup_real+0x14/0x50 Mar 4 08:31:00
> office-backup kernel: [<ffffffff811211f2>] ?
> __lookup_hash+0x32/0x50 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff81121b38>] ? lookup_slow+0x48/0xc0 Mar 4 08:31:00
> office-backup kernel: [<ffffffff81123a91>] ?
> path_lookupat+0x711/0x760 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0 Mar 4 08:31:00
> office-backup kernel: [<ffffffff81121d77>] ?
> getname_flags+0xb7/0x190 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0 Mar 4 08:31:00
> office-backup kernel: [<ffffffff8111bd6d>] ?
> cp_new_stat+0x10d/0x120 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90 Mar 4 08:31:00
> office-backup kernel: [<ffffffff8111c0c2>] ?
> SyS_newlstat+0x12/0x30 Mar 4 08:31:00 office-backup kernel:
> [<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b Mar 4
> 08:55:01 office-backup kernel: INFO: task updatedb.mlocat:903
> blocked for more than 120 seconds. Mar 4 08:55:01 office-backup
> kernel: Not tainted 3.13.2 #3 Mar 4 08:55:01 office-backup
> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
> this message. Mar 4 08:55:01 office-backup kernel: updatedb.mlocat
> D 0000000000000000 0 903 899 0x00000000 Mar 4 08:55:01
> office-backup kernel: ffff88007cad6270 0000000000000086
> ffff88007bb020d0 0000000000004000 Mar 4 08:55:01 office-backup
> kernel: ffff88005a705fd8 ffff88007cad6270 00000055b6aee000
> ffff88007b9ac000 Mar 4 08:55:01 office-backup kernel:
> ffff8800048282e8 ffff880076f80000 ffff8800272a09c0
> ffffffff812c3e5c Mar 4 08:55:01 office-backup kernel: Call Trace:
> Mar 4 08:55:01 office-backup kernel: [<ffffffff812c3e5c>] ?
> btrfs_map_bio+0x4ac/0x5a0 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff812b79c0>] ? repair_io_failure+0x210/0x210 Mar 4
> 08:55:01 office-backup kernel: [<ffffffff810d9a40>] ?
> __lock_page+0x70/0x70 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff817b8177>] ? io_schedule+0x87/0xd0 Mar 4 08:55:01
> office-backup kernel: [<ffffffff810d9a49>] ?
> sleep_on_page+0x9/0x10 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80 Mar 4 08:55:01
> office-backup kernel: [<ffffffff81294d21>] ?
> btree_submit_bio_hook+0xe1/0x110 Mar 4 08:55:01 office-backup
> kernel: [<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80 Mar 4
> 08:55:01 office-backup kernel: [<ffffffff8109bdc0>] ?
> wake_atomic_t_function+0x30/0x30 Mar 4 08:55:01 office-backup
> kernel: [<ffffffff812bb2ba>] ?
> read_extent_buffer_pages+0x2aa/0x2e0 Mar 4 08:55:01 office-backup
> kernel: [<ffffffff810da355>] ? add_to_page_cache_lru+0x25/0x40 Mar
> 4 08:55:01 office-backup kernel: [<ffffffff81292a10>] ?
> verify_parent_transid+0x170/0x170 Mar 4 08:55:01 office-backup
> kernel: [<ffffffff812949a9>] ?
> btree_read_extent_buffer_pages.constprop.126+0xa9/0x110 Mar 4
> 08:55:01 office-backup kernel: [<ffffffff81294f23>] ?
> read_tree_block+0x33/0x60 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff812775dc>] ? read_block_for_search.isra.45+0x18c/0x3b0
> Mar 4 08:55:01 office-backup kernel: [<ffffffff81276d47>] ?
> comp_keys+0x27/0x30 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920 Mar 4
> 08:55:01 office-backup kernel: [<ffffffff812b1641>] ?
> btrfs_get_token_16+0x61/0xf0 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0 Mar 4 08:55:01
> office-backup kernel: [<ffffffff81113ef0>] ?
> kmem_cache_alloc+0xc0/0xe0 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff812a6313>] ? btrfs_iget+0x103/0x520 Mar 4 08:55:01
> office-backup kernel: [<ffffffff8128eb1f>] ?
> btrfs_lookup_dir_item+0x9f/0xd0 Mar 4 08:55:01 office-backup
> kernel: [<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0 Mar
> 4 08:55:01 office-backup kernel: [<ffffffff812a8529>] ?
> btrfs_lookup+0x9/0x20 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff81120624>] ? lookup_real+0x14/0x50 Mar 4 08:55:01
> office-backup kernel: [<ffffffff811211f2>] ?
> __lookup_hash+0x32/0x50 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff81121b38>] ? lookup_slow+0x48/0xc0 Mar 4 08:55:01
> office-backup kernel: [<ffffffff81123a91>] ?
> path_lookupat+0x711/0x760 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0 Mar 4 08:55:01
> office-backup kernel: [<ffffffff81121d77>] ?
> getname_flags+0xb7/0x190 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0 Mar 4 08:55:01
> office-backup kernel: [<ffffffff8111bd6d>] ?
> cp_new_stat+0x10d/0x120 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90 Mar 4 08:55:01
> office-backup kernel: [<ffffffff8111c0c2>] ?
> SyS_newlstat+0x12/0x30 Mar 4 08:55:01 office-backup kernel:
> [<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b
>
When this happens again do
echo w > /proc/sysrq-trigger
and then capture dmesg. Thanks,
Josef
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Task Hang
2014-03-04 14:58 ` Josef Bacik
@ 2014-03-06 16:48 ` Mark Murawski
2014-03-09 20:49 ` Mark Murawski
0 siblings, 1 reply; 4+ messages in thread
From: Mark Murawski @ 2014-03-06 16:48 UTC (permalink / raw)
To: Josef Bacik, linux-btrfs
[-- Attachment #1: Type: text/plain, Size: 10265 bytes --]
Not the same problem, but I do have a lockup with another situation.
I tried adding some new devices... but accidentally screwed up the
syntax (not sure if this had anything to do with the lockup)
btrfs device add / /dev/sdb
probe of / failed, cannot detect existing filesystem.
Use the -f option to force overwrite.
office-backup {~} root# btrfs device add /dev/sdb /dev/sdd
ERROR: error adding the device '/dev/sdb' - Inappropriate ioctl for device
D 1772 [btrfs-transacti]
D 6530 [btrfs-submit-2]
D 7301 /usr/bin/perl /usr/share/backuppc/bin/BackupPC_link demo3
D 7471 fdisk /dev/sdb
D 7523 [btrfs-submit-2]
D 7526 -bash
D 7527 -bash
D 28611 /usr/bin/perl /usr/share/backuppc/bin/BackupPC_trashClean
Attached is output from w to sysrq
On 03/04/2014 09:58 AM, Josef Bacik wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 03/04/2014 09:19 AM, Mark Murawski wrote:
>> I have btrfs as the fs for a backuppc box. updatedb was running at
>> the same time as a massive rsync.
>>
>> Mar 4 08:31:00 office-backup kernel: INFO: task
>> updatedb.mlocat:903 blocked for more than 120 seconds. Mar 4
>> 08:31:00 office-backup kernel: Not tainted 3.13.2 #3 Mar 4
>> 08:31:00 office-backup kernel: "echo 0 >
>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar
>> 4 08:31:00 office-backup kernel: updatedb.mlocat D
>> 0000000000000000 0 903 899 0x00000000 Mar 4 08:31:00
>> office-backup kernel: ffff88007cad6270 0000000000000086
>> ffff88007c0ee900 0000000000004000 Mar 4 08:31:00 office-backup
>> kernel: ffff88005a705fd8 ffff88007cad6270 000000541a6be000
>> ffff88007b9ac000 Mar 4 08:31:00 office-backup kernel:
>> ffff88001ad2ef68 ffff880001f97000 ffff8800452d4480
>> ffffffff812c3e5c Mar 4 08:31:00 office-backup kernel: Call Trace:
>> Mar 4 08:31:00 office-backup kernel: [<ffffffff812c3e5c>] ?
>> btrfs_map_bio+0x4ac/0x5a0 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff812b79c0>] ? repair_io_failure+0x210/0x210 Mar 4
>> 08:31:00 office-backup kernel: [<ffffffff810d9a40>] ?
>> __lock_page+0x70/0x70 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff817b8177>] ? io_schedule+0x87/0xd0 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff810d9a49>] ?
>> sleep_on_page+0x9/0x10 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff81294d21>] ?
>> btree_submit_bio_hook+0xe1/0x110 Mar 4 08:31:00 office-backup
>> kernel: [<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80 Mar 4
>> 08:31:00 office-backup kernel: [<ffffffff8109bdc0>] ?
>> wake_atomic_t_function+0x30/0x30 Mar 4 08:31:00 office-backup
>> kernel: [<ffffffff812bb2ba>] ?
>> read_extent_buffer_pages+0x2aa/0x2e0 Mar 4 08:31:00 office-backup
>> kernel: [<ffffffff810da355>] ? add_to_page_cache_lru+0x25/0x40 Mar
>> 4 08:31:00 office-backup kernel: [<ffffffff81344b21>] ?
>> radix_tree_insert+0x91/0x250 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff81292a10>] ? verify_parent_transid+0x170/0x170 Mar 4
>> 08:31:00 office-backup kernel: [<ffffffff812949a9>] ?
>> btree_read_extent_buffer_pages.constprop.126+0xa9/0x110 Mar 4
>> 08:31:00 office-backup kernel: [<ffffffff81294f23>] ?
>> read_tree_block+0x33/0x60 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff812775dc>] ? read_block_for_search.isra.45+0x18c/0x3b0
>> Mar 4 08:31:00 office-backup kernel: [<ffffffff81276d47>] ?
>> comp_keys+0x27/0x30 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920 Mar 4
>> 08:31:00 office-backup kernel: [<ffffffff812b1641>] ?
>> btrfs_get_token_16+0x61/0xf0 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff81113ef0>] ?
>> kmem_cache_alloc+0xc0/0xe0 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff812a6313>] ? btrfs_iget+0x103/0x520 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff8128eb1f>] ?
>> btrfs_lookup_dir_item+0x9f/0xd0 Mar 4 08:31:00 office-backup
>> kernel: [<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0 Mar
>> 4 08:31:00 office-backup kernel: [<ffffffff812a8529>] ?
>> btrfs_lookup+0x9/0x20 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff81120624>] ? lookup_real+0x14/0x50 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff811211f2>] ?
>> __lookup_hash+0x32/0x50 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff81121b38>] ? lookup_slow+0x48/0xc0 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff81123a91>] ?
>> path_lookupat+0x711/0x760 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff81121d77>] ?
>> getname_flags+0xb7/0x190 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff8111bd6d>] ?
>> cp_new_stat+0x10d/0x120 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90 Mar 4 08:31:00
>> office-backup kernel: [<ffffffff8111c0c2>] ?
>> SyS_newlstat+0x12/0x30 Mar 4 08:31:00 office-backup kernel:
>> [<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b Mar 4
>> 08:55:01 office-backup kernel: INFO: task updatedb.mlocat:903
>> blocked for more than 120 seconds. Mar 4 08:55:01 office-backup
>> kernel: Not tainted 3.13.2 #3 Mar 4 08:55:01 office-backup
>> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
>> this message. Mar 4 08:55:01 office-backup kernel: updatedb.mlocat
>> D 0000000000000000 0 903 899 0x00000000 Mar 4 08:55:01
>> office-backup kernel: ffff88007cad6270 0000000000000086
>> ffff88007bb020d0 0000000000004000 Mar 4 08:55:01 office-backup
>> kernel: ffff88005a705fd8 ffff88007cad6270 00000055b6aee000
>> ffff88007b9ac000 Mar 4 08:55:01 office-backup kernel:
>> ffff8800048282e8 ffff880076f80000 ffff8800272a09c0
>> ffffffff812c3e5c Mar 4 08:55:01 office-backup kernel: Call Trace:
>> Mar 4 08:55:01 office-backup kernel: [<ffffffff812c3e5c>] ?
>> btrfs_map_bio+0x4ac/0x5a0 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff812b79c0>] ? repair_io_failure+0x210/0x210 Mar 4
>> 08:55:01 office-backup kernel: [<ffffffff810d9a40>] ?
>> __lock_page+0x70/0x70 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff817b8177>] ? io_schedule+0x87/0xd0 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff810d9a49>] ?
>> sleep_on_page+0x9/0x10 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff81294d21>] ?
>> btree_submit_bio_hook+0xe1/0x110 Mar 4 08:55:01 office-backup
>> kernel: [<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80 Mar 4
>> 08:55:01 office-backup kernel: [<ffffffff8109bdc0>] ?
>> wake_atomic_t_function+0x30/0x30 Mar 4 08:55:01 office-backup
>> kernel: [<ffffffff812bb2ba>] ?
>> read_extent_buffer_pages+0x2aa/0x2e0 Mar 4 08:55:01 office-backup
>> kernel: [<ffffffff810da355>] ? add_to_page_cache_lru+0x25/0x40 Mar
>> 4 08:55:01 office-backup kernel: [<ffffffff81292a10>] ?
>> verify_parent_transid+0x170/0x170 Mar 4 08:55:01 office-backup
>> kernel: [<ffffffff812949a9>] ?
>> btree_read_extent_buffer_pages.constprop.126+0xa9/0x110 Mar 4
>> 08:55:01 office-backup kernel: [<ffffffff81294f23>] ?
>> read_tree_block+0x33/0x60 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff812775dc>] ? read_block_for_search.isra.45+0x18c/0x3b0
>> Mar 4 08:55:01 office-backup kernel: [<ffffffff81276d47>] ?
>> comp_keys+0x27/0x30 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920 Mar 4
>> 08:55:01 office-backup kernel: [<ffffffff812b1641>] ?
>> btrfs_get_token_16+0x61/0xf0 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff81113ef0>] ?
>> kmem_cache_alloc+0xc0/0xe0 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff812a6313>] ? btrfs_iget+0x103/0x520 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff8128eb1f>] ?
>> btrfs_lookup_dir_item+0x9f/0xd0 Mar 4 08:55:01 office-backup
>> kernel: [<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0 Mar
>> 4 08:55:01 office-backup kernel: [<ffffffff812a8529>] ?
>> btrfs_lookup+0x9/0x20 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff81120624>] ? lookup_real+0x14/0x50 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff811211f2>] ?
>> __lookup_hash+0x32/0x50 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff81121b38>] ? lookup_slow+0x48/0xc0 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff81123a91>] ?
>> path_lookupat+0x711/0x760 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff81121d77>] ?
>> getname_flags+0xb7/0x190 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff8111bd6d>] ?
>> cp_new_stat+0x10d/0x120 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90 Mar 4 08:55:01
>> office-backup kernel: [<ffffffff8111c0c2>] ?
>> SyS_newlstat+0x12/0x30 Mar 4 08:55:01 office-backup kernel:
>> [<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b
>>
> When this happens again do
>
> echo w > /proc/sysrq-trigger
>
> and then capture dmesg. Thanks,
>
> Josef
>
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[-- Attachment #2: sysrq-w --]
[-- Type: text/plain, Size: 28475 bytes --]
[<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920
[<ffffffff8129f2e0>] ? btrfs_readpage+0x20/0x20
[<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0
[<ffffffff81113ef0>] ? kmem_cache_alloc+0xc0/0xe0
[<ffffffff812a6313>] ? btrfs_iget+0x103/0x520
[<ffffffff8128eb1f>] ? btrfs_lookup_dir_item+0x9f/0xd0
[<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0
[<ffffffff812a8529>] ? btrfs_lookup+0x9/0x20
[<ffffffff81120624>] ? lookup_real+0x14/0x50
[<ffffffff811211f2>] ? __lookup_hash+0x32/0x50
[<ffffffff81121b38>] ? lookup_slow+0x48/0xc0
[<ffffffff81123a91>] ? path_lookupat+0x711/0x760
[<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0
[<ffffffff81121d77>] ? getname_flags+0xb7/0x190
[<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0
[<ffffffff812a9cd8>] ? btrfs_link+0x78/0x1d0
[<ffffffff8111bd6d>] ? cp_new_stat+0x10d/0x120
[<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90
[<ffffffff8111c092>] ? SyS_newstat+0x12/0x30
[<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b
fdisk D ffffffff817d1e60 0 7471 7325 0x00000000
ffff88007ca08000 0000000000000086 ffff88007c85c1a0 0000000000004000
ffff880070677fd8 ffff88007ca08000 000000000c360af4 ffffffff81094947
0000000000000000 0000000000000001 0000000000000000 ffff880070676000
Call Trace:
[<ffffffff81094947>] ? set_next_entity+0x37/0x80
[<ffffffff810ada9d>] ? ktime_get_ts+0x3d/0xd0
[<ffffffff810cc231>] ? delayacct_end+0x81/0xa0
[<ffffffff810d9a40>] ? __lock_page+0x70/0x70
[<ffffffff817b8177>] ? io_schedule+0x87/0xd0
[<ffffffff810d9a49>] ? sleep_on_page+0x9/0x10
[<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80
[<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80
[<ffffffff8109bdc0>] ? wake_atomic_t_function+0x30/0x30
[<ffffffff810d9e04>] ? filemap_fdatawait_range+0xd4/0x150
[<ffffffff8113cabd>] ? sync_inodes_sb+0x14d/0x1c0
[<ffffffff81141310>] ? fdatawrite_one_bdev+0x10/0x10
[<ffffffff8111a989>] ? iterate_supers+0xd9/0xe0
[<ffffffff8114146a>] ? sys_sync+0x3a/0xa0
[<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b
Sched Debug Version: v0.11, 3.13.2 #3
ktime : 508982199.307298
sched_clk : 508427276.572591
cpu_clk : 508982199.306817
jiffies : 4422137845
sched_clock_stable : 0
sysctl_sched
.sysctl_sched_latency : 12.000000
.sysctl_sched_min_granularity : 1.500000
.sysctl_sched_wakeup_granularity : 2.000000
.sysctl_sched_child_runs_first : 0
.sysctl_sched_features : 11899
.sysctl_sched_tunable_scaling : 1 (logaritmic)
cpu#0, 2999.512 MHz
.nr_running : 0
.load : 0
.nr_switches : 806708173
.nr_load_updates : 91319048
.nr_uninterruptible : -1991
.next_balance : 4422.137803
.curr->pid : 0
.clock : 508982198.845919
.cpu_load[0] : 0
.cpu_load[1] : 0
.cpu_load[2] : 0
.cpu_load[3] : 0
.cpu_load[4] : 0
cfs_rq[0]:
.exec_clock : 0.000000
.MIN_vruntime : 0.000001
.min_vruntime : 106067366.199195
.max_vruntime : 0.000001
.spread : 0.000000
.spread0 : 0.000000
.nr_spread_over : 0
.nr_running : 0
.load : 0
.runnable_load_avg : 0
.blocked_load_avg : 52
rt_rq[0]:
.rt_nr_running : 0
.rt_throttled : 0
.rt_time : 0.000000
.rt_runtime : 950.000000
runnable tasks:
task PID tree-key switches prio exec-runtime sum-exec sum-sleep
----------------------------------------------------------------------------------------------------------
kthreadd 2 106065720.264234 28395 120 0 0 0.000000 0.000000 0.000000
ksoftirqd/0 3 106067326.319773 2229871 120 0 0 0.000000 0.000000 0.000000
kworker/0:0H 5 4255.763080 5 100 0 0 0.000000 0.000000 0.000000
rcu_preempt 7 106067359.558999 48845682 120 0 0 0.000000 0.000000 0.000000
rcu_sched 8 106052870.535465 11 120 0 0 0.000000 0.000000 0.000000
rcu_bh 9 58.079246 2 120 0 0 0.000000 0.000000 0.000000
migration/0 10 0.000000 10396 0 0 0 0.000000 0.000000 0.000000
writeback 329 52957239.726106 210 100 0 0 0.000000 0.000000 0.000000
rpciod 519 1823.046895 2 100 0 0 0.000000 0.000000 0.000000
khungtaskd 533 106065609.416409 4244 120 0 0 0.000000 0.000000 0.000000
kswapd0 538 106065787.305395 15971098 120 0 0 0.000000 0.000000 0.000000
fsnotify_mark 603 106060217.814748 42 120 0 0 0.000000 0.000000 0.000000
scsi_eh_1 1288 4157.663402 36 120 0 0 0.000000 0.000000 0.000000
kworker/0:1H 1546 106067359.551737 37138288 100 0 0 0.000000 0.000000 0.000000
btrfs-delalloc- 1754 106065783.411522 5789 120 0 0 0.000000 0.000000 0.000000
btrfs-fixup-1 1755 106065783.410980 5602 120 0 0 0.000000 0.000000 0.000000
btrfs-readahead 1765 106065783.409275 6101 120 0 0 0.000000 0.000000 0.000000
btrfs-flush_del 1766 106065619.503072 4964 120 0 0 0.000000 0.000000 0.000000
btrfs-transacti 1772 106067357.826303 38384212 120 0 0 0.000000 0.000000 0.000000
bioset 2223 5696.173269 2 100 0 0 0.000000 0.000000 0.000000
md4_raid1 2247 106060689.775366 85220 120 0 0 0.000000 0.000000 0.000000
jbd2/md3-8 3362 11963097.870380 66 120 0 0 0.000000 0.000000 0.000000
rpc.idmapd 3700 10065.368966 1 120 0 0 0.000000 0.000000 0.000000
rsyslogd 4052 106054722.847681 140 120 0 0 0.000000 0.000000 0.000000
nmbd 4109 106067152.862928 135237 120 0 0 0.000000 0.000000 0.000000
mdadm 4195 106054722.788895 2228 120 0 0 0.000000 0.000000 0.000000
atd 4232 105990182.832356 321 120 0 0 0.000000 0.000000 0.000000
inetd 4276 11755.234666 4 120 0 0 0.000000 0.000000 0.000000
winbindd 4655 106054922.302233 4110 120 0 0 0.000000 0.000000 0.000000
getty 4701 12881.132692 42 120 0 0 0.000000 0.000000 0.000000
dhclient 4738 104667541.981289 121 120 0 0 0.000000 0.000000 0.000000
sshd 4783 106064772.148377 427 120 0 0 0.000000 0.000000 0.000000
sshd 19939 106054722.862192 2409 120 0 0 0.000000 0.000000 0.000000
bash 19943 25784313.058374 1091 120 0 0 0.000000 0.000000 0.000000
emacs 19969 161695.741081 837 120 0 0 0.000000 0.000000 0.000000
BackupPC 28608 106048914.803118 9022 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 883 106051583.697117 43 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 1147 105989485.801024 27 120 0 0 0.000000 0.000000 0.000000
tail 1866 106054722.841108 29 120 0 0 0.000000 0.000000 0.000000
bash 1875 25802073.317152 57 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 1896 105988991.040804 22 120 0 0 0.000000 0.000000 0.000000
bash 2158 25973599.481294 15 120 0 0 0.000000 0.000000 0.000000
kworker/0:0 2251 106067360.203454 1725696 120 0 0 0.000000 0.000000 0.000000
bash 2286 26703960.784196 44 120 0 0 0.000000 0.000000 0.000000
ssh 2293 26708000.933931 132 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 2302 105989142.941250 13 120 0 0 0.000000 0.000000 0.000000
getty 2303 26733602.922728 10 120 0 0 0.000000 0.000000 0.000000
kworker/u8:2 4459 106061322.853210 37329 120 0 0 0.000000 0.000000 0.000000
kworker/u8:0 4483 106067299.631838 2397 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 6958 105991594.009868 4 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-wri 7279 106065283.760895 171 120 0 0 0.000000 0.000000 0.000000
BackupPC_link 7301 106067366.199195 63952 130 0 0 0.000000 0.000000 0.000000
btrfs-endio-2 7307 106066839.668081 1056 120 0 0 0.000000 0.000000 0.000000
kworker/0:1 7324 106054722.818290 8 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-2 7379 106064769.918796 407 120 0 0 0.000000 0.000000 0.000000
tail 7393 106054722.849560 18 120 0 0 0.000000 0.000000 0.000000
btrfs-worker-2 7420 106065784.963486 2600 120 0 0 0.000000 0.000000 0.000000
kworker/0:2 7434 106061247.516207 30 120 0 0 0.000000 0.000000 0.000000
kworker/u8:1 7472 106061328.846268 2 120 0 0 0.000000 0.000000 0.000000
sshd 7473 106067360.235381 573 120 0 0 0.000000 0.000000 0.000000
btrfs-submit-2 7490 106065819.440317 710 120 0 0 0.000000 0.000000 0.000000
cpu#1, 2999.512 MHz
.nr_running : 2
.load : 2048
.nr_switches : 787632773
.nr_load_updates : 91735997
.nr_uninterruptible : 1997
.next_balance : 4422.137805
.curr->pid : 7479
.clock : 508982198.854931
.cpu_load[0] : 0
.cpu_load[1] : 0
.cpu_load[2] : 0
.cpu_load[3] : 0
.cpu_load[4] : 0
cfs_rq[1]:
.exec_clock : 0.000000
.MIN_vruntime : 107974897.404600
.min_vruntime : 107974903.398641
.max_vruntime : 107974897.404600
.spread : 0.000000
.spread0 : 1907537.199446
.nr_spread_over : 0
.nr_running : 2
.load : 2048
.runnable_load_avg : 27
.blocked_load_avg : 18
rt_rq[1]:
.rt_nr_running : 0
.rt_throttled : 0
.rt_time : 0.000000
.rt_runtime : 950.000000
runnable tasks:
task PID tree-key switches prio exec-runtime sum-exec sum-sleep
----------------------------------------------------------------------------------------------------------
init 1 107974866.289357 103576 120 0 0 0.000000 0.000000 0.000000
migration/1 11 0.000000 10314 0 0 0 0.000000 0.000000 0.000000
ksoftirqd/1 12 107974869.523860 2311601 120 0 0 0.000000 0.000000 0.000000
kworker/1:0H 14 5306.318956 6 100 0 0 0.000000 0.000000 0.000000
khelper 15 2.953601 2 100 0 0 0.000000 0.000000 0.000000
bioset 331 956.953124 2 100 0 0 0.000000 0.000000 0.000000
kblockd 333 962.953121 2 100 0 0 0.000000 0.000000 0.000000
ata_sff 400 1168.153353 2 100 0 0 0.000000 0.000000 0.000000
khubd 410 26692676.081180 213 120 0 0 0.000000 0.000000 0.000000
md 418 1222.153326 2 100 0 0 0.000000 0.000000 0.000000
nfsiod 623 1896.198422 2 100 0 0 0.000000 0.000000 0.000000
cifsiod 629 1914.296406 2 100 0 0 0.000000 0.000000 0.000000
bioset 644 1960.482888 2 100 0 0 0.000000 0.000000 0.000000
crypto 650 1978.558065 2 100 0 0 0.000000 0.000000 0.000000
scsi_eh_0 1285 5196.004498 36 120 0 0 0.000000 0.000000 0.000000
cnic_wq 1367 5018.282414 2 100 0 0 0.000000 0.000000 0.000000
kpsmoused 1463 5155.131897 2 100 0 0 0.000000 0.000000 0.000000
raid5wq 1465 5161.136986 2 100 0 0 0.000000 0.000000 0.000000
kmpathd 1469 5167.140474 2 100 0 0 0.000000 0.000000 0.000000
kmpath_handlerd 1470 5173.145454 2 100 0 0 0.000000 0.000000 0.000000
deferwq 1502 5179.149234 2 100 0 0 0.000000 0.000000 0.000000
scsi_eh_2 1507 5195.172654 2 120 0 0 0.000000 0.000000 0.000000
usb-storage 1508 5195.201826 6 120 0 0 0.000000 0.000000 0.000000
kworker/1:1H 1547 107974897.401958 37131472 100 0 0 0.000000 0.000000 0.000000
btrfs-genwork-1 1752 107971711.930532 14391 120 0 0 0.000000 0.000000 0.000000
btrfs-rmw-1 1758 107973494.313066 5675 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-rai 1759 107973494.315275 5038 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-met 1760 107973494.314681 6045 120 0 0 0.000000 0.000000 0.000000
btrfs-freespace 1762 107973351.334636 157332 120 0 0 0.000000 0.000000 0.000000
btrfs-cache-1 1764 107973646.240323 20761 120 0 0 0.000000 0.000000 0.000000
btrfs-qgroup-re 1767 107973494.314504 5293 120 0 0 0.000000 0.000000 0.000000
btrfs-cleaner 1771 107956569.190035 15955 120 0 0 0.000000 0.000000 0.000000
udevd 1892 107967715.015955 579 120 0 0 0.000000 0.000000 0.000000
md3_raid1 2224 107968112.584460 851 120 0 0 0.000000 0.000000 0.000000
bioset 2246 6746.340440 2 100 0 0 0.000000 0.000000 0.000000
ext4-rsv-conver 3363 10141.473764 2 100 0 0 0.000000 0.000000 0.000000
rpcbind 3650 107974426.761815 16965 120 0 0 0.000000 0.000000 0.000000
rpc.statd 3684 11035.952111 7 120 0 0 0.000000 0.000000 0.000000
rsyslogd 4018 104549491.370333 55 120 0 0 0.000000 0.000000 0.000000
rs:main Q:Reg 4049 107973567.071607 3100 120 0 0 0.000000 0.000000 0.000000
rsyslogd 4051 107973589.511506 2778 120 0 0 0.000000 0.000000 0.000000
acpid 4091 26692686.688044 18 120 0 0 0.000000 0.000000 0.000000
smbd 4112 107974856.991500 12645 120 0 0 0.000000 0.000000 0.000000
smbd 4144 12270.238966 1 120 0 0 0.000000 0.000000 0.000000
cron 4328 107974897.438430 10571 120 0 0 0.000000 0.000000 0.000000
dbus-daemon 4590 13573.288119 1 120 0 0 0.000000 0.000000 0.000000
winbindd 4651 107961916.906312 6143 120 0 0 0.000000 0.000000 0.000000
login 4699 26697302.681663 123 120 0 0 0.000000 0.000000 0.000000
getty 4700 13780.087754 9 120 0 0 0.000000 0.000000 0.000000
getty 4702 13780.557850 104 120 0 0 0.000000 0.000000 0.000000
getty 4703 13783.860790 107 120 0 0 0.000000 0.000000 0.000000
sshd 5807 26959666.738330 2389492 120 0 0 0.000000 0.000000 0.000000
bash 5811 26959667.187477 1755 120 0 0 0.000000 0.000000 0.000000
sshd 22572 107973987.188900 1097058 120 0 0 0.000000 0.000000 0.000000
bash 22576 106580337.258431 199 120 0 0 0.000000 0.000000 0.000000
BackupPC_trashC 28611 107974901.741897 814417 130 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 30481 107974896.399165 238013 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 873 107974869.530031 63979 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 880 107897168.964503 29 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 882 107939810.759452 34 120 0 0 0.000000 0.000000 0.000000
sshd 1871 25776606.214109 243 120 0 0 0.000000 0.000000 0.000000
sshd 2154 25953578.946638 100 120 0 0 0.000000 0.000000 0.000000
kworker/1:1 2325 107967714.982244 537923 120 0 0 0.000000 0.000000 0.000000
kworker/1:0 2344 107967662.185874 248340 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 2563 107941617.726394 11 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 2564 107954370.658767 11 120 0 0 0.000000 0.000000 0.000000
/usr/sbin/apach 2565 107955241.494417 7 120 0 0 0.000000 0.000000 0.000000
btrfs-submit-2 6530 107974897.490477 78829 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-met 6823 107974897.802363 250816 120 0 0 0.000000 0.000000 0.000000
btrfs-worker-4 6922 107973518.691594 11738 120 0 0 0.000000 0.000000 0.000000
sshd 6964 107973775.536827 11705 120 0 0 0.000000 0.000000 0.000000
bash 6968 107950323.903460 1635 120 0 0 0.000000 0.000000 0.000000
btrfs-delayed-m 7303 107974898.028760 5820 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-met 7305 107974770.779408 30439 120 0 0 0.000000 0.000000 0.000000
sshd 7320 107974559.374227 1537 120 0 0 0.000000 0.000000 0.000000
bash 7325 107968862.746764 1152 120 0 0 0.000000 0.000000 0.000000
btrfs-worker-4 7422 107973467.310087 10277 120 0 0 0.000000 0.000000 0.000000
kworker/1:2 7430 107967668.444881 18 120 0 0 0.000000 0.000000 0.000000
udevd 7431 107967715.335907 49 120 0 0 0.000000 0.000000 0.000000
udevd 7433 107967688.718157 22 120 0 0 0.000000 0.000000 0.000000
kworker/1:3 7466 107974897.404600 316 120 0 0 0.000000 0.000000 0.000000
fdisk 7471 107974897.456319 18718 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-3 7477 107974848.906759 513 120 0 0 0.000000 0.000000 0.000000
btrfs-endio-4 7478 107972758.682593 13 120 0 0 0.000000 0.000000 0.000000
R bash 7479 107974897.408741 38 120 0 0 0.000000 0.000000 0.000000
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: Task Hang
2014-03-06 16:48 ` Mark Murawski
@ 2014-03-09 20:49 ` Mark Murawski
0 siblings, 0 replies; 4+ messages in thread
From: Mark Murawski @ 2014-03-09 20:49 UTC (permalink / raw)
To: linux-btrfs
Soooo... was this a help to anyone?
On 03/06/14 11:48, Mark Murawski wrote:
> Not the same problem, but I do have a lockup with another situation.
>
> I tried adding some new devices... but accidentally screwed up the
> syntax (not sure if this had anything to do with the lockup)
>
> btrfs device add / /dev/sdb
> probe of / failed, cannot detect existing filesystem.
> Use the -f option to force overwrite.
>
> office-backup {~} root# btrfs device add /dev/sdb /dev/sdd
> ERROR: error adding the device '/dev/sdb' - Inappropriate ioctl for device
>
>
> D 1772 [btrfs-transacti]
> D 6530 [btrfs-submit-2]
> D 7301 /usr/bin/perl /usr/share/backuppc/bin/BackupPC_link demo3
> D 7471 fdisk /dev/sdb
> D 7523 [btrfs-submit-2]
> D 7526 -bash
> D 7527 -bash
> D 28611 /usr/bin/perl /usr/share/backuppc/bin/BackupPC_trashClean
>
> Attached is output from w to sysrq
>
>
>
> On 03/04/2014 09:58 AM, Josef Bacik wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> On 03/04/2014 09:19 AM, Mark Murawski wrote:
>>> I have btrfs as the fs for a backuppc box. updatedb was running at
>>> the same time as a massive rsync.
>>>
>>> Mar 4 08:31:00 office-backup kernel: INFO: task
>>> updatedb.mlocat:903 blocked for more than 120 seconds. Mar 4
>>> 08:31:00 office-backup kernel: Not tainted 3.13.2 #3 Mar 4
>>> 08:31:00 office-backup kernel: "echo 0 >
>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar
>>> 4 08:31:00 office-backup kernel: updatedb.mlocat D
>>> 0000000000000000 0 903 899 0x00000000 Mar 4 08:31:00
>>> office-backup kernel: ffff88007cad6270 0000000000000086
>>> ffff88007c0ee900 0000000000004000 Mar 4 08:31:00 office-backup
>>> kernel: ffff88005a705fd8 ffff88007cad6270 000000541a6be000
>>> ffff88007b9ac000 Mar 4 08:31:00 office-backup kernel:
>>> ffff88001ad2ef68 ffff880001f97000 ffff8800452d4480
>>> ffffffff812c3e5c Mar 4 08:31:00 office-backup kernel: Call Trace:
>>> Mar 4 08:31:00 office-backup kernel: [<ffffffff812c3e5c>] ?
>>> btrfs_map_bio+0x4ac/0x5a0 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff812b79c0>] ? repair_io_failure+0x210/0x210 Mar 4
>>> 08:31:00 office-backup kernel: [<ffffffff810d9a40>] ?
>>> __lock_page+0x70/0x70 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff817b8177>] ? io_schedule+0x87/0xd0 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff810d9a49>] ?
>>> sleep_on_page+0x9/0x10 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff81294d21>] ?
>>> btree_submit_bio_hook+0xe1/0x110 Mar 4 08:31:00 office-backup
>>> kernel: [<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80 Mar 4
>>> 08:31:00 office-backup kernel: [<ffffffff8109bdc0>] ?
>>> wake_atomic_t_function+0x30/0x30 Mar 4 08:31:00 office-backup
>>> kernel: [<ffffffff812bb2ba>] ?
>>> read_extent_buffer_pages+0x2aa/0x2e0 Mar 4 08:31:00 office-backup
>>> kernel: [<ffffffff810da355>] ? add_to_page_cache_lru+0x25/0x40 Mar
>>> 4 08:31:00 office-backup kernel: [<ffffffff81344b21>] ?
>>> radix_tree_insert+0x91/0x250 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff81292a10>] ? verify_parent_transid+0x170/0x170 Mar 4
>>> 08:31:00 office-backup kernel: [<ffffffff812949a9>] ?
>>> btree_read_extent_buffer_pages.constprop.126+0xa9/0x110 Mar 4
>>> 08:31:00 office-backup kernel: [<ffffffff81294f23>] ?
>>> read_tree_block+0x33/0x60 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff812775dc>] ? read_block_for_search.isra.45+0x18c/0x3b0
>>> Mar 4 08:31:00 office-backup kernel: [<ffffffff81276d47>] ?
>>> comp_keys+0x27/0x30 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920 Mar 4
>>> 08:31:00 office-backup kernel: [<ffffffff812b1641>] ?
>>> btrfs_get_token_16+0x61/0xf0 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff81113ef0>] ?
>>> kmem_cache_alloc+0xc0/0xe0 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff812a6313>] ? btrfs_iget+0x103/0x520 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff8128eb1f>] ?
>>> btrfs_lookup_dir_item+0x9f/0xd0 Mar 4 08:31:00 office-backup
>>> kernel: [<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0 Mar
>>> 4 08:31:00 office-backup kernel: [<ffffffff812a8529>] ?
>>> btrfs_lookup+0x9/0x20 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff81120624>] ? lookup_real+0x14/0x50 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff811211f2>] ?
>>> __lookup_hash+0x32/0x50 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff81121b38>] ? lookup_slow+0x48/0xc0 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff81123a91>] ?
>>> path_lookupat+0x711/0x760 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff81121d77>] ?
>>> getname_flags+0xb7/0x190 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff8111bd6d>] ?
>>> cp_new_stat+0x10d/0x120 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90 Mar 4 08:31:00
>>> office-backup kernel: [<ffffffff8111c0c2>] ?
>>> SyS_newlstat+0x12/0x30 Mar 4 08:31:00 office-backup kernel:
>>> [<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b Mar 4
>>> 08:55:01 office-backup kernel: INFO: task updatedb.mlocat:903
>>> blocked for more than 120 seconds. Mar 4 08:55:01 office-backup
>>> kernel: Not tainted 3.13.2 #3 Mar 4 08:55:01 office-backup
>>> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
>>> this message. Mar 4 08:55:01 office-backup kernel: updatedb.mlocat
>>> D 0000000000000000 0 903 899 0x00000000 Mar 4 08:55:01
>>> office-backup kernel: ffff88007cad6270 0000000000000086
>>> ffff88007bb020d0 0000000000004000 Mar 4 08:55:01 office-backup
>>> kernel: ffff88005a705fd8 ffff88007cad6270 00000055b6aee000
>>> ffff88007b9ac000 Mar 4 08:55:01 office-backup kernel:
>>> ffff8800048282e8 ffff880076f80000 ffff8800272a09c0
>>> ffffffff812c3e5c Mar 4 08:55:01 office-backup kernel: Call Trace:
>>> Mar 4 08:55:01 office-backup kernel: [<ffffffff812c3e5c>] ?
>>> btrfs_map_bio+0x4ac/0x5a0 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff812b79c0>] ? repair_io_failure+0x210/0x210 Mar 4
>>> 08:55:01 office-backup kernel: [<ffffffff810d9a40>] ?
>>> __lock_page+0x70/0x70 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff817b8177>] ? io_schedule+0x87/0xd0 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff810d9a49>] ?
>>> sleep_on_page+0x9/0x10 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff817b8742>] ? __wait_on_bit+0x52/0x80 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff81294d21>] ?
>>> btree_submit_bio_hook+0xe1/0x110 Mar 4 08:55:01 office-backup
>>> kernel: [<ffffffff810d9cc3>] ? wait_on_page_bit+0x73/0x80 Mar 4
>>> 08:55:01 office-backup kernel: [<ffffffff8109bdc0>] ?
>>> wake_atomic_t_function+0x30/0x30 Mar 4 08:55:01 office-backup
>>> kernel: [<ffffffff812bb2ba>] ?
>>> read_extent_buffer_pages+0x2aa/0x2e0 Mar 4 08:55:01 office-backup
>>> kernel: [<ffffffff810da355>] ? add_to_page_cache_lru+0x25/0x40 Mar
>>> 4 08:55:01 office-backup kernel: [<ffffffff81292a10>] ?
>>> verify_parent_transid+0x170/0x170 Mar 4 08:55:01 office-backup
>>> kernel: [<ffffffff812949a9>] ?
>>> btree_read_extent_buffer_pages.constprop.126+0xa9/0x110 Mar 4
>>> 08:55:01 office-backup kernel: [<ffffffff81294f23>] ?
>>> read_tree_block+0x33/0x60 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff812775dc>] ? read_block_for_search.isra.45+0x18c/0x3b0
>>> Mar 4 08:55:01 office-backup kernel: [<ffffffff81276d47>] ?
>>> comp_keys+0x27/0x30 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff81279c8c>] ? btrfs_search_slot+0x41c/0x920 Mar 4
>>> 08:55:01 office-backup kernel: [<ffffffff812b1641>] ?
>>> btrfs_get_token_16+0x61/0xf0 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff812919f5>] ? btrfs_lookup_inode+0x25/0xa0 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff81113ef0>] ?
>>> kmem_cache_alloc+0xc0/0xe0 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff812a6313>] ? btrfs_iget+0x103/0x520 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff8128eb1f>] ?
>>> btrfs_lookup_dir_item+0x9f/0xd0 Mar 4 08:55:01 office-backup
>>> kernel: [<ffffffff812a843b>] ? btrfs_lookup_dentry+0x3db/0x4c0 Mar
>>> 4 08:55:01 office-backup kernel: [<ffffffff812a8529>] ?
>>> btrfs_lookup+0x9/0x20 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff81120624>] ? lookup_real+0x14/0x50 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff811211f2>] ?
>>> __lookup_hash+0x32/0x50 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff81121b38>] ? lookup_slow+0x48/0xc0 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff81123a91>] ?
>>> path_lookupat+0x711/0x760 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff81123b0f>] ? filename_lookup+0x2f/0xd0 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff81121d77>] ?
>>> getname_flags+0xb7/0x190 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff811269ee>] ? user_path_at_empty+0x5e/0xb0 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff8111bd6d>] ?
>>> cp_new_stat+0x10d/0x120 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff8111bef1>] ? vfs_fstatat+0x41/0x90 Mar 4 08:55:01
>>> office-backup kernel: [<ffffffff8111c0c2>] ?
>>> SyS_newlstat+0x12/0x30 Mar 4 08:55:01 office-backup kernel:
>>> [<ffffffff817bb7a2>] ? system_call_fastpath+0x16/0x1b
>>>
>> When this happens again do
>>
>> echo w > /proc/sysrq-trigger
>>
>> and then capture dmesg. Thanks,
>>
>> Josef
>>
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>> Version: GnuPG v1
>> Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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>> -----END PGP SIGNATURE-----
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-03-09 20:50 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-03-04 14:19 Task Hang Mark Murawski
2014-03-04 14:58 ` Josef Bacik
2014-03-06 16:48 ` Mark Murawski
2014-03-09 20:49 ` Mark Murawski
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