Created attachment 1097551 [details] dmesg.log Description of problem: I see in dmesg log messages: [ 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 But abrt not catch this.
Thank you for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find. Basically, because ABRT ignores almost all "INFO" oops'es because ABRT already opens too many Bugzilla bugs and this kind of oops'es is currently less valuable. *** This bug has been marked as a duplicate of bug 1008592 ***