On Wed, Mar 5, 2014 at 4:53 PM, Austin Schuh <austin@xxxxxxxxxxxxxxxx> wrote: > Hi Dave, > > On Wed, Mar 5, 2014 at 3:35 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote: >> On Wed, Mar 05, 2014 at 03:08:16PM -0800, Austin Schuh wrote: >>> Howdy, >>> >>> I'm running a config_preempt_rt patched version of the 3.10.11 kernel, >>> and I'm seeing a couple lockups and crashes which I think are related >>> to XFS. >> >> I think they ar emore likely related to RT issues.... >> > > That very well may be true. > >> Your usb device has disconnected and gone down the device >> removal/invalidate partition route. and it's trying to flush the >> device, which is stuck on IO completion which is stuck waiting for >> the device error handling to error them out. >> >> So, this is a block device problem error handling problem caused by >> device unplug getting stuck because it's decided to ask the >> filesystem to complete operations that can't be completed until the >> device error handling progress far enough to error out the IOs that >> the filesystem is waiting for completion on. >> >> Cheers, >> >> Dave. >> -- >> Dave Chinner >> david@xxxxxxxxxxxxx I had the issue reproduce itself today with just the main SSD installed. This was on a new machine that was built this morning. There is a lot less going on in this trace than the previous one. [ 360.448156] INFO: task kworker/1:1:42 blocked for more than 120 seconds. [ 360.450266] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 360.452404] kworker/1:1 D ffff88042e0e2cc0 0 42 2 0x00000000 [ 360.452429] Workqueue: xfs-data/sda5 xfs_end_io [xfs] [ 360.452432] ffff88042af38000 0000000000000046 0000000000000000 ffff88042b0cece0 [ 360.452433] 0000000000062cc0 ffff88042af1ffd8 0000000000062cc0 ffff88042af1ffd8 [ 360.452435] 0000000000062cc0 ffff88042af38000 ffff8803eac3be40 0000000000000002 [ 360.452437] Call Trace: [ 360.452443] [<ffffffff813a1f93>] ? schedule+0x6b/0x7c [ 360.452445] [<ffffffff813a2438>] ? __rt_mutex_slowlock+0x7b/0xb4 [ 360.452447] [<ffffffff813a2577>] ? rt_mutex_slowlock+0xe5/0x150 [ 360.452455] [<ffffffffa0099adb>] ? xfs_setfilesize+0x48/0x120 [xfs] [ 360.452462] [<ffffffffa009a62f>] ? xfs_end_io+0x7a/0x8e [xfs] [ 360.452465] [<ffffffff81055a49>] ? process_one_work+0x19b/0x2b2 [ 360.452468] [<ffffffff81055f41>] ? worker_thread+0x12b/0x1f6 [ 360.452469] [<ffffffff81055e16>] ? rescuer_thread+0x28f/0x28f [ 360.452471] [<ffffffff8105a909>] ? kthread+0x81/0x89 [ 360.452473] [<ffffffff8105a888>] ? __kthread_parkme+0x5c/0x5c [ 360.452475] [<ffffffff813a75fc>] ? ret_from_fork+0x7c/0xb0 [ 360.452477] [<ffffffff8105a888>] ? __kthread_parkme+0x5c/0x5c [ 360.452483] INFO: task kworker/u16:4:222 blocked for more than 120 seconds. [ 360.454614] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 360.456801] kworker/u16:4 D ffff88042e062cc0 0 222 2 0x00000000 [ 360.456807] Workqueue: writeback bdi_writeback_workfn (flush-8:0) [ 360.456810] ffff88042af3cb60 0000000000000046 ffff8804292a0000 ffffffff81616400 [ 360.456812] 0000000000062cc0 ffff8804292a1fd8 0000000000062cc0 ffff8804292a1fd8 [ 360.456813] ffff8804292a1978 ffff88042af3cb60 ffff88042af3cb60 ffff8804292a1a50 [ 360.456815] Call Trace: [ 360.456819] [<ffffffff810cc034>] ? __lock_page+0x66/0x66 [ 360.456822] [<ffffffff813a1f93>] ? schedule+0x6b/0x7c [ 360.456824] [<ffffffff813a1ff9>] ? io_schedule+0x55/0x6b [ 360.456825] [<ffffffff810cc03a>] ? sleep_on_page+0x6/0xa [ 360.456827] [<ffffffff813a137a>] ? __wait_on_bit_lock+0x3c/0x85 [ 360.456829] [<ffffffff810cc4a4>] ? find_get_pages_tag+0xfa/0x125 [ 360.456831] [<ffffffff810cc02f>] ? __lock_page+0x61/0x66 [ 360.456833] [<ffffffff8105b333>] ? autoremove_wake_function+0x2a/0x2a [ 360.456835] [<ffffffff810d4700>] ? write_cache_pages+0x177/0x302 [ 360.456836] [<ffffffff810d3d07>] ? page_index+0x14/0x14 [ 360.456838] [<ffffffff810d48c6>] ? generic_writepages+0x3b/0x57 [ 360.456840] [<ffffffff81134698>] ? __writeback_single_inode+0x72/0x225 [ 360.456842] [<ffffffff8113550b>] ? writeback_sb_inodes+0x215/0x36d [ 360.456844] [<ffffffff811356cc>] ? __writeback_inodes_wb+0x69/0xab [ 360.456846] [<ffffffff81135844>] ? wb_writeback+0x136/0x2a7 [ 360.456848] [<ffffffff81135c88>] ? wb_do_writeback+0x161/0x1dc [ 360.456851] [<ffffffff81135d66>] ? bdi_writeback_workfn+0x63/0xf4 [ 360.456852] [<ffffffff81055a49>] ? process_one_work+0x19b/0x2b2 [ 360.456854] [<ffffffff81055f41>] ? worker_thread+0x12b/0x1f6 [ 360.456856] [<ffffffff81055e16>] ? rescuer_thread+0x28f/0x28f [ 360.456857] [<ffffffff8105a909>] ? kthread+0x81/0x89 [ 360.456859] [<ffffffff8105a888>] ? __kthread_parkme+0x5c/0x5c [ 360.456860] [<ffffffff813a75fc>] ? ret_from_fork+0x7c/0xb0 [ 360.456862] [<ffffffff8105a888>] ? __kthread_parkme+0x5c/0x5c [ 360.456881] INFO: task dpkg:5140 blocked for more than 120 seconds. [ 360.459062] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 360.461283] dpkg D ffff88042e0e2cc0 0 5140 5112 0x00000000 [ 360.461287] ffff8804290d2180 0000000000000086 000000000000020c ffff88042af38000 [ 360.461289] 0000000000062cc0 ffff880429bf7fd8 0000000000062cc0 ffff880429bf7fd8 [ 360.461290] ffff880429bf78e8 ffff8804290d2180 ffff880429bf7a10 ffff880429bf7a08 [ 360.461292] Call Trace: [ 360.461296] [<ffffffff813a10ef>] ? console_conditional_schedule+0xf/0xf [ 360.461298] [<ffffffff813a1f93>] ? schedule+0x6b/0x7c [ 360.461299] [<ffffffff813a111b>] ? schedule_timeout+0x2c/0x123 [ 360.461301] [<ffffffff813a5c20>] ? add_preempt_count+0xb7/0xe0 [ 360.461303] [<ffffffff81065cfd>] ? migrate_enable+0x1cd/0x1dd [ 360.461306] [<ffffffff810651ab>] ? get_parent_ip+0x9/0x1b [ 360.461308] [<ffffffff813a5c20>] ? add_preempt_count+0xb7/0xe0 [ 360.461310] [<ffffffff813a188b>] ? __wait_for_common+0x78/0xd6 [ 360.461323] [<ffffffffa00c0032>] ? xfs_bmapi_allocate+0x92/0x9e [xfs] [ 360.461333] [<ffffffffa00c035d>] ? xfs_bmapi_write+0x31f/0x558 [xfs] [ 360.461336] [<ffffffff81109680>] ? kmem_cache_alloc+0x7c/0x17d [ 360.461346] [<ffffffffa00bde6e>] ? __xfs_bmapi_allocate+0x22b/0x22b [xfs] [ 360.461354] [<ffffffffa00a6899>] ? xfs_iomap_write_allocate+0x1bc/0x2c8 [xfs] [ 360.461362] [<ffffffffa0099dc5>] ? xfs_map_blocks+0x125/0x1f5 [xfs] [ 360.461369] [<ffffffffa009ac87>] ? xfs_vm_writepage+0x266/0x48f [xfs] [ 360.461371] [<ffffffff810d3d14>] ? __writepage+0xd/0x2a [ 360.461372] [<ffffffff810d4790>] ? write_cache_pages+0x207/0x302 [ 360.461374] [<ffffffff810d3d07>] ? page_index+0x14/0x14 [ 360.461376] [<ffffffff810d48c6>] ? generic_writepages+0x3b/0x57 [ 360.461378] [<ffffffff810cd303>] ? __filemap_fdatawrite_range+0x50/0x55 [ 360.461380] [<ffffffff81138a63>] ? SyS_sync_file_range+0xe2/0x127 [ 360.461382] [<ffffffff813a76a9>] ? system_call_fastpath+0x16/0x1b Austin _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
