So cool, thanks Hugo :)

2015-04-02 14:46 GMT+03:00 Hugo Mills <h...@carfax.org.uk>:
> On Thu, Apr 02, 2015 at 02:38:24PM +0300, Timofey Titovets wrote:
>> I've get it several times, after rebooting or unclean shutdown system.
>>
>> This is very strange bug, because if i reboot, and mount it from live
>> cd, all that okay, and after reboot in system, system successful mount
>> all and working good.
>> i did try to found any previous issues on it, and found nothing.
>
>    Try 4.0-rc6, which should have the fix for the problem in it. This
> was introduced in the stable series, and is now fixed in mainline. It
> should also be fixed in the next stable release, I believe.
>
>    Hugo.
>
>> [  240.100043] INFO: task mount:485 blocked for more than 120 seconds.
>> [  240.100156]       Not tainted 3.19.0-10-generic #10-Ubuntu
>> [  240.100244] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
>> disables this message.
>> [  240.100359] mount           D ffff88009e907818     0   485      1 
>> 0x00000004
>> [  240.100364]  ffff88009e907818 ffff8804473ac4b0 0000000000014200
>> ffff88009e907fd8
>> [  240.100368]  0000000000014200 ffff88044ae3f5c0 ffff8804473ac4b0
>> ffff88009e907828
>> [  240.100371]  ffff88045d073c70 ffff88045d073cd8 ffff88045d073cf0
>> ffff88009e907858
>> [  240.100374] Call Trace:
>> [  240.100386]  [<ffffffff817c38e9>] schedule+0x29/0x70
>> [  240.100427]  [<ffffffffc050a7e5>] btrfs_tree_lock+0x55/0x1f0 [btrfs]
>> [  240.100432]  [<ffffffff810b6200>] ? wait_woken+0x90/0x90
>> [  240.100444]  [<ffffffffc04acc69>] btrfs_search_slot+0x709/0xa60 [btrfs]
>> [  240.100457]  [<ffffffffc04ae8ad>] btrfs_insert_empty_items+0x7d/0xd0 
>> [btrfs]
>> [  240.100469]  [<ffffffffc04a78aa>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
>> [  240.100487]  [<ffffffffc050aab8>] btrfs_insert_orphan_item+0x58/0x80 
>> [btrfs]
>> [  240.100509]  [<ffffffffc050c04e>] insert_orphan_item+0x5e/0x90 [btrfs]
>> [  240.100529]  [<ffffffffc0510d11>] replay_one_buffer+0x351/0x370 [btrfs]
>> [  240.100547]  [<ffffffffc050b991>] walk_up_log_tree+0xd1/0x240 [btrfs]
>> [  240.100558]  [<ffffffffc04a78aa>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
>> [  240.100577]  [<ffffffffc050bb9b>] walk_log_tree+0x9b/0x1a0 [btrfs]
>> [  240.100596]  [<ffffffffc0513214>] btrfs_recover_log_trees+0x1d4/0x470 
>> [btrfs]
>> [  240.100614]  [<ffffffffc05109c0>] ? replay_one_extent+0x6b0/0x6b0 [btrfs]
>> [  240.100630]  [<ffffffffc04ceb23>] open_ctree+0x1813/0x2090 [btrfs]
>> [  240.100642]  [<ffffffffc04a4b00>] btrfs_mount+0x850/0x920 [btrfs]
>> [  240.100649]  [<ffffffff811f7208>] mount_fs+0x38/0x1c0
>> [  240.100653]  [<ffffffff8119b5e5>] ? __alloc_percpu+0x15/0x20
>> [  240.100658]  [<ffffffff812138fb>] vfs_kern_mount+0x6b/0x120
>> [  240.100662]  [<ffffffff81216754>] do_mount+0x204/0xb20
>> [  240.100665]  [<ffffffff8121738b>] SyS_mount+0x8b/0xd0
>> [  240.100669]  [<ffffffff817c824d>] system_call_fastpath+0x16/0x1b
>> [  240.100676] INFO: task btrfs-transacti:506 blocked for more than 120 
>> seconds.
>> [  240.100780]       Not tainted 3.19.0-10-generic #10-Ubuntu
>> [  240.100869] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
>> disables this message.
>> [  240.100982] btrfs-transacti D ffff8804474abdc8     0   506      2 
>> 0x00000000
>> [  240.100986]  ffff8804474abdc8 ffff88009ef83ae0 0000000000014200
>> ffff8804474abfd8
>> [  240.100989]  0000000000014200 ffffffff81c1a580 ffff88009ef83ae0
>> ffff8804474abdd8
>> [  240.100992]  ffff880448695000 ffff88045d396000 ffff88045d33afc0
>> ffff8804474abe00
>> [  240.100995] Call Trace:
>> [  240.100998]  [<ffffffff817c38e9>] schedule+0x29/0x70
>> [  240.101018]  [<ffffffffc04d14c5>]
>> btrfs_commit_transaction+0x375/0xa40 [btrfs]
>> [  240.101021]  [<ffffffff810b6200>] ? wait_woken+0x90/0x90
>> [  240.101037]  [<ffffffffc04ccf5d>] transaction_kthread+0x1dd/0x250 [btrfs]
>> [  240.101052]  [<ffffffffc04ccd80>] ?
>> btrfs_cleanup_transaction+0x550/0x550 [btrfs]
>> [  240.101057]  [<ffffffff81094679>] kthread+0xc9/0xe0
>> [  240.101061]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
>> [  240.101064]  [<ffffffff817c8198>] ret_from_fork+0x58/0x90
>> [  240.101067]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
>>
>
> --
> Hugo Mills             | Great oxymorons of the world, no. 10:
> hugo@... carfax.org.uk | Business Ethics
> http://carfax.org.uk/  |
> PGP: 65E74AC0          |



-- 
Have a nice day,
Timofey.
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