[ 239.881241] INFO: task tracker-store:2686 blocked for more than 120 seconds.
[ 239.881245] Not tainted 4.2.6-300.fc23.x86_64+debug #1
[ 239.881246] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 239.881247] tracker-store D ffff8807fe1d76d8 11528 2686 1 0x00000000
[ 239.881254] ffff8807a7aef1e8 0000000000000096 ffff8807f997b800
0000000000000000
[ 239.881256] ffff8807f61faa40 ffff8807a79c5480 ffff8807a7aef1e8
ffff8807a7af0000
[ 239.881258] ffff8807fe1d76c0 7fffffffffffffff ffffffff8186d450
ffff8807a7aef3b0
[ 239.881260] Call Trace:
[ 239.881267] [<ffffffff8186d450>] ? bit_wait+0x50/0x50
[ 239.881268] [<ffffffff8186cade>] schedule+0x3e/0x90
[ 239.881270] [<ffffffff81871705>] schedule_timeout+0x255/0x410
[ 239.881274] [<ffffffff81107f5d>] ? mark_held_locks+0x7d/0xb0
[ 239.881279] [<ffffffff8113e00d>] ? ktime_get+0x7d/0x140
[ 239.881281] [<ffffffff8186d450>] ? bit_wait+0x50/0x50
[ 239.881283] [<ffffffff811080b9>] ? trace_hardirqs_on_caller+0x129/0x1b0
[ 239.881287] [<ffffffff810267d9>] ? read_tsc+0x9/0x10
[ 239.881289] [<ffffffff8113e03c>] ? ktime_get+0xac/0x140
[ 239.881292] [<ffffffff811902d3>] ? __delayacct_blkio_start+0x23/0x30
[ 239.881294] [<ffffffff8186d450>] ? bit_wait+0x50/0x50
[ 239.881296] [<ffffffff8186c024>] io_schedule_timeout+0xa4/0x110
[ 239.881297] [<ffffffff8186d485>] bit_wait_io+0x35/0x50
[ 239.881299] [<ffffffff8186d01d>] __wait_on_bit+0x5d/0x90
[ 239.881303] [<ffffffff811e12cf>] wait_on_page_bit+0xcf/0xf0
[ 239.881305] [<ffffffff810fbfc0>] ? autoremove_wake_function+0x40/0x40
[ 239.881329] [<ffffffffa06f1319>]
read_extent_buffer_pages+0x2c9/0x300 [btrfs]
[ 239.881340] [<ffffffffa06c0ec0>] ? free_root_pointers+0x60/0x60 [btrfs]
[ 239.881347] [<ffffffffa06c1e8c>]
btree_read_extent_buffer_pages.constprop.54+0xac/0x110 [btrfs]
[ 239.881354] [<ffffffffa06c3171>] read_tree_block+0x41/0x70 [btrfs]
[ 239.881360] [<ffffffffa06a048e>]
read_block_for_search.isra.34+0x13e/0x380 [btrfs]
[ 239.881366] [<ffffffffa06a27f4>] btrfs_search_slot+0x384/0xa10 [btrfs]
[ 239.881369] [<ffffffff811080b9>] ? trace_hardirqs_on_caller+0x129/0x1b0
[ 239.881375] [<ffffffffa06bd08e>] btrfs_lookup_csum+0x4e/0x150 [btrfs]
[ 239.881382] [<ffffffffa06bd345>]
__btrfs_lookup_bio_sums.isra.6+0x1b5/0x510 [btrfs]
[ 239.881389] [<ffffffffa06c2c5c>] ? btrfs_bio_wq_end_io+0x2c/0x80 [btrfs]
[ 239.881395] [<ffffffffa06bd926>] btrfs_lookup_bio_sums+0x36/0x40 [btrfs]
[ 239.881402] [<ffffffffa06cd661>] btrfs_submit_bio_hook+0x131/0x1b0 [btrfs]
[ 239.881410] [<ffffffffa06e8bde>] submit_one_bio+0x6e/0xa0 [btrfs]
[ 239.881417] [<ffffffffa06edac5>] submit_extent_page+0xe5/0x1e0 [btrfs]
[ 239.881423] [<ffffffffa06eee8e>] __do_readpage+0x39e/0x940 [btrfs]
[ 239.881429] [<ffffffffa06ed200>] ?
btrfs_create_repair_bio+0x100/0x100 [btrfs]
[ 239.881436] [<ffffffffa06d0140>] ?
btrfs_writepage_end_io_hook+0x300/0x300 [btrfs]
[ 239.881443] [<ffffffffa06ef7f4>]
__extent_readpages.constprop.40+0x2c4/0x2e0 [btrfs]
[ 239.881445] [<ffffffff811e3168>] ? __add_to_page_cache_locked+0x408/0x470
[ 239.881451] [<ffffffffa06d0140>] ?
btrfs_writepage_end_io_hook+0x300/0x300 [btrfs]
[ 239.881458] [<ffffffffa06efe77>] extent_readpages+0x197/0x1f0 [btrfs]
[ 239.881464] [<ffffffffa06d0140>] ?
btrfs_writepage_end_io_hook+0x300/0x300 [btrfs]
[ 239.881469] [<ffffffffa06cda6f>] btrfs_readpages+0x1f/0x30 [btrfs]
[ 239.881472] [<ffffffff811f42cf>] __do_page_cache_readahead+0x2af/0x330
[ 239.881473] [<ffffffff811f419d>] ? __do_page_cache_readahead+0x17d/0x330
[ 239.881475] [<ffffffff810e7e3c>] ? local_clock+0x1c/0x20
[ 239.881477] [<ffffffff811f4433>] ondemand_readahead+0xe3/0x460
[ 239.881480] [<ffffffff812a2132>] ? inode_congested+0x122/0x210
[ 239.881482] [<ffffffff811f4823>] page_cache_async_readahead+0x73/0x80
[ 239.881483] [<ffffffff811e44b2>] generic_file_read_iter+0x452/0x610
[ 239.881485] [<ffffffff81107f5d>] ? mark_held_locks+0x7d/0xb0
[ 239.881487] [<ffffffff8126fe1c>] __vfs_read+0xcc/0x100
[ 239.881488] [<ffffffff8127073a>] vfs_read+0x8a/0x140
[ 239.881490] [<ffffffff812714e8>] SyS_read+0x58/0xd0
[ 239.881493] [<ffffffff818735ee>] entry_SYSCALL_64_fastpath+0x12/0x76
[ 239.881495] 1 lock held by tracker-store/2686:
[ 239.881495] #0: (&f->f_pos_lock){+.+.+.}, at:
[<ffffffff81293149>] __fdget_pos+0x49/0x50
--
Best Regards,
Mike Gavrilov.
--
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