XFS (dm-16): Mounting Filesystem XFS (dm-17): Mounting Filesystem XFS (dm-16): Starting recovery (logdev: internal) XFS (dm-16): Ending recovery (logdev: internal) XFS (dm-17): Starting recovery (logdev: internal) XFS (dm-17): Ending recovery (logdev: internal) XFS (dm-4): Mounting Filesystem XFS (dm-4): Ending clean mount XFS (dm-5): Mounting Filesystem XFS (dm-5): Starting recovery (logdev: internal) XFS (dm-5): Ending recovery (logdev: internal) XFS (dm-6): Mounting Filesystem XFS (dm-6): Starting recovery (logdev: internal) XFS (dm-6): Ending recovery (logdev: internal) XFS (dm-7): Mounting Filesystem XFS (dm-7): Starting recovery (logdev: internal) XFS (dm-7): Ending recovery (logdev: internal) XFS (dm-4): Mounting Filesystem XFS (dm-4): Ending clean mount XFS (dm-9): Mounting Filesystem XFS (dm-9): Ending clean mount XFS (dm-10): Mounting Filesystem XFS (dm-10): Starting recovery (logdev: internal) XFS (dm-10): Ending recovery (logdev: internal) XFS (dm-11): Mounting Filesystem XFS (dm-11): Starting recovery (logdev: internal) XFS (dm-11): Ending recovery (logdev: internal) XFS (dm-12): Mounting Filesystem XFS (dm-12): Starting recovery (logdev: internal) XFS (dm-12): Ending recovery (logdev: internal) XFS (dm-13): Mounting Filesystem XFS (dm-13): Starting recovery (logdev: internal) XFS (dm-13): Ending recovery (logdev: internal) XFS (dm-14): Mounting Filesystem XFS (dm-14): Starting recovery (logdev: internal) XFS (dm-14): Ending recovery (logdev: internal) XFS (dm-15): Mounting Filesystem XFS (dm-15): Starting recovery (logdev: internal) XFS (dm-15): Ending recovery (logdev: internal) XFS (dm-16): Mounting Filesystem XFS (dm-16): Starting recovery (logdev: internal) XFS (dm-16): Ending recovery (logdev: internal) XFS (dm-17): Mounting Filesystem XFS (dm-17): Starting recovery (logdev: internal) XFS (dm-17): Ending recovery (logdev: internal) XFS (dm-10): Mounting Filesystem XFS (dm-10): Starting recovery (logdev: internal) XFS (dm-10): Ending recovery (logdev: internal) XFS (dm-11): Mounting Filesystem XFS (dm-11): Starting recovery (logdev: internal) XFS (dm-11): Ending recovery (logdev: internal) XFS (dm-4): Mounting Filesystem XFS (dm-4): Ending clean mount XFS (dm-9): Mounting Filesystem XFS (dm-9): Ending clean mount XFS (dm-14): Mounting Filesystem XFS (dm-14): Ending clean mount XFS (dm-15): Mounting Filesystem XFS (dm-15): Starting recovery (logdev: internal) XFS (dm-15): Ending recovery (logdev: internal) XFS (dm-16): Mounting Filesystem XFS (dm-16): Starting recovery (logdev: internal) XFS (dm-16): Ending recovery (logdev: internal) XFS (loop1): Mounting Filesystem XFS (loop1): Ending clean mount XFS (loop2): Mounting Filesystem XFS (loop2): Ending clean mount INFO: task xfsalloc/0:463 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. xfsalloc/0 D ffff880004b1b840 0 463 2 0x00000000 ffff88003eb27a50 0000000000000246 0000000000000000 0000000000000000 ffffffff810074fd ffff88003eb27a20 ffffffff81007ca2 0000000000000000 ffff8800045705f8 ffff88003eb27fd8 000000000000fbc8 ffff8800045705f8 Call Trace: [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] xlog_wait+0x72/0x90 [xfs] [] ? default_wake_function+0x0/0x20 [] ? xlog_state_release_iclog+0xb3/0xf0 [xfs] [] _xfs_log_force+0x1ae/0x240 [xfs] [] xfs_log_force+0x38/0x90 [xfs] [] xfs_alloc_ag_vextent_size+0x1b8/0x630 [xfs] [] xfs_alloc_ag_vextent+0xad/0x100 [xfs] [] xfs_alloc_vextent+0x2bc/0x610 [xfs] [] xfs_bmap_btalloc+0x267/0x700 [xfs] [] xfs_bmap_alloc+0xe/0x10 [xfs] [] __xfs_bmapi_allocate+0x102/0x340 [xfs] [] ? thread_return+0x4e/0x760 [] ? xen_force_evtchn_callback+0xd/0x10 [] xfs_bmapi_allocate_worker+0x70/0xa0 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] worker_thread+0x170/0x2a0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? autoremove_wake_function+0x0/0x40 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] ? worker_thread+0x0/0x2a0 [] kthread+0x96/0xa0 [] ? worker_thread+0x0/0x2a0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task flush-7:0:23981 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. flush-7:0 D ffff880004b1b840 0 23981 2 0x00000080 ffff88003eb6f970 0000000000000246 00000000ffffffff 003eccac90e64182 ffff88003eb6f8f0 ffff88003c28d2f0 0000000001063a6a ffffffffac679ecd ffff88003e018638 ffff88003eb6ffd8 000000000000fbc8 ffff88003e018638 Call Trace: [] ? ktime_get_ts+0xb1/0xf0 [] ? sync_page+0x0/0x50 [] io_schedule+0x73/0xc0 [] sync_page+0x3d/0x50 [] __wait_on_bit_lock+0x5a/0xc0 [] __lock_page+0x67/0x70 [] ? wake_bit_function+0x0/0x50 [] ? pagevec_lookup_tag+0x25/0x40 [] write_cache_pages+0x3cd/0x4c0 [] ? __writepage+0x0/0x40 [] ? xen_force_evtchn_callback+0xd/0x10 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] writeback_single_inode+0xdd/0x290 [] writeback_sb_inodes+0xbd/0x170 [] writeback_inodes_wb+0xab/0x1b0 [] wb_writeback+0x2f3/0x410 [] ? check_events+0x12/0x20 [] ? del_timer_sync+0x22/0x30 [] wb_do_writeback+0x1a5/0x240 [] bdi_writeback_task+0x63/0x1b0 [] ? bit_waitqueue+0x17/0xd0 [] ? bdi_start_fn+0x0/0x100 [] bdi_start_fn+0x86/0x100 [] ? bdi_start_fn+0x0/0x100 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task loop1:15077 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. loop1 D ffff880004b1b840 0 15077 2 0x00000080 ffff88003e461500 0000000000000246 ffff88003e4614b0 ffffffffa00ed42d 000000000000000c ffff88003d513dc0 ffffea00005b7920 00000004005b78f8 ffff88003e454638 ffff88003e461fd8 000000000000fbc8 ffff88003e454638 Call Trace: [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] schedule_timeout+0x215/0x2e0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] wait_for_common+0x123/0x180 [] ? default_wake_function+0x0/0x20 [] ? __queue_work+0x41/0x50 [] wait_for_completion+0x1d/0x20 [] xfs_bmapi_allocate+0xa8/0xd0 [xfs] [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] xfs_bmapi+0x8e6/0xee0 [xfs] [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? kmem_zone_alloc+0x77/0xf0 [xfs] [] xfs_iomap_write_allocate+0x140/0x370 [xfs] [] xfs_map_blocks+0x193/0x250 [xfs] [] xfs_vm_writepage+0x1f9/0x590 [xfs] [] __writepage+0x17/0x40 [] write_cache_pages+0x1fd/0x4c0 [] ? __writepage+0x0/0x40 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] __filemap_fdatawrite_range+0x5b/0x60 [] ? xen_end_context_switch+0x1e/0x30 [] filemap_write_and_wait_range+0x5a/0x90 [] vfs_fsync_range+0x7e/0x100 [] vfs_fsync+0x1d/0x20 [] do_bio_filebacked+0x317/0x330 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] loop_thread+0xd1/0x270 [] ? autoremove_wake_function+0x0/0x40 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] ? loop_thread+0x0/0x270 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task loop2:15087 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. loop2 D ffff880004b1b840 0 15087 2 0x00000080 ffff88003c6a5500 0000000000000246 ffff88003c6a54b0 ffffffffa00ed42d 000000000000000b ffff88003e6c4df0 ffffea00009af4b8 00000007009af490 ffff880006a3b058 ffff88003c6a5fd8 000000000000fbc8 ffff880006a3b058 Call Trace: [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] schedule_timeout+0x215/0x2e0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] wait_for_common+0x123/0x180 [] ? default_wake_function+0x0/0x20 [] ? __queue_work+0x41/0x50 [] wait_for_completion+0x1d/0x20 [] xfs_bmapi_allocate+0xa8/0xd0 [xfs] [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] xfs_bmapi+0x8e6/0xee0 [xfs] [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? kmem_zone_alloc+0x77/0xf0 [xfs] [] xfs_iomap_write_allocate+0x140/0x370 [xfs] [] xfs_map_blocks+0x193/0x250 [xfs] [] xfs_vm_writepage+0x1f9/0x590 [xfs] [] __writepage+0x17/0x40 [] write_cache_pages+0x1fd/0x4c0 [] ? __writepage+0x0/0x40 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] __filemap_fdatawrite_range+0x5b/0x60 [] ? xen_end_context_switch+0x1e/0x30 [] filemap_write_and_wait_range+0x5a/0x90 [] vfs_fsync_range+0x7e/0x100 [] vfs_fsync+0x1d/0x20 [] do_bio_filebacked+0x317/0x330 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] loop_thread+0xd1/0x270 [] ? autoremove_wake_function+0x0/0x40 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] ? loop_thread+0x0/0x270 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task flush-7:2:15212 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. flush-7:2 D ffff880004b1b840 0 15212 2 0x00000080 ffff88003e1e7440 0000000000000246 0000000000000000 ffff88003eb20080 ffff88003eb20080 ffff880004b1b840 0000000000000000 0000000000000000 ffff88002cf17098 ffff88003e1e7fd8 000000000000fbc8 ffff88002cf17098 Call Trace: [] schedule_timeout+0x215/0x2e0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] wait_for_common+0x123/0x180 [] ? default_wake_function+0x0/0x20 [] ? __queue_work+0x41/0x50 [] wait_for_completion+0x1d/0x20 [] xfs_bmapi_allocate+0xa8/0xd0 [xfs] [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] xfs_bmapi+0x8e6/0xee0 [xfs] [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? check_events+0x12/0x20 [] ? kmem_zone_alloc+0x77/0xf0 [xfs] [] xfs_iomap_write_allocate+0x140/0x370 [xfs] [] xfs_map_blocks+0x193/0x250 [xfs] [] xfs_vm_writepage+0x1f9/0x590 [xfs] [] __writepage+0x17/0x40 [] write_cache_pages+0x1fd/0x4c0 [] ? pagevec_lookup_tag+0x25/0x40 [] ? __writepage+0x0/0x40 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] writeback_single_inode+0xdd/0x290 [] writeback_sb_inodes+0xbd/0x170 [] writeback_inodes_wb+0xab/0x1b0 [] wb_writeback+0x2f3/0x410 [] ? check_events+0x12/0x20 [] ? del_timer_sync+0x22/0x30 [] wb_do_writeback+0x1a5/0x240 [] bdi_writeback_task+0x63/0x1b0 [] ? bit_waitqueue+0x17/0xd0 [] ? bdi_start_fn+0x0/0x100 [] bdi_start_fn+0x86/0x100 [] ? bdi_start_fn+0x0/0x100 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task flush-7:1:15213 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. flush-7:1 D ffff880004b1b840 0 15213 2 0x00000080 ffff88003dc014a0 0000000000000246 0000000000000000 ffff88003eb20080 ffff88003eb20080 ffff880004b1b840 0000000000000000 0000000000000000 ffff88002cf16638 ffff88003dc01fd8 000000000000fbc8 ffff88002cf16638 Call Trace: [] schedule_timeout+0x215/0x2e0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] wait_for_common+0x123/0x180 [] ? default_wake_function+0x0/0x20 [] ? __queue_work+0x41/0x50 [] wait_for_completion+0x1d/0x20 [] xfs_bmapi_allocate+0xa8/0xd0 [xfs] [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] xfs_bmapi+0x8e6/0xee0 [xfs] [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? kmem_zone_alloc+0x77/0xf0 [xfs] [] xfs_iomap_write_allocate+0x140/0x370 [xfs] [] xfs_map_blocks+0x193/0x250 [xfs] [] xfs_vm_writepage+0x1f9/0x590 [xfs] [] __writepage+0x17/0x40 [] write_cache_pages+0x1fd/0x4c0 [] ? __writepage+0x0/0x40 [] ? retint_restore_args+0x5/0x6 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] writeback_single_inode+0xdd/0x290 [] ? xen_force_evtchn_callback+0xd/0x10 [] writeback_sb_inodes+0xbd/0x170 [] ? xen_irq_enable_direct_end+0x0/0x7 [] wb_writeback+0x174/0x410 [] ? check_events+0x12/0x20 [] ? del_timer_sync+0x22/0x30 [] wb_do_writeback+0xbb/0x240 [] bdi_writeback_task+0x63/0x1b0 [] ? bit_waitqueue+0x17/0xd0 [] ? bdi_start_fn+0x0/0x100 [] bdi_start_fn+0x86/0x100 [] ? bdi_start_fn+0x0/0x100 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task umount:15333 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. umount D ffff880004b1b840 0 15333 14904 0x00000080 ffff88003deabc28 0000000000000286 ffff88003deabbd8 ffffffff810097cc ffff88002cf160b8 0000000000000000 0000000000eabbe8 ffff880004b193c0 ffff8800131abaf8 ffff88003deabfd8 000000000000fbc8 ffff8800131abaf8 Call Trace: [] ? __switch_to+0x1ac/0x320 [] ? thread_return+0x4e/0x760 [] schedule_timeout+0x215/0x2e0 [] ? enqueue_task_fair+0xfb/0x100 [] wait_for_common+0x123/0x180 [] ? default_wake_function+0x0/0x20 [] wait_for_completion+0x1d/0x20 [] writeback_inodes_sb_nr+0x75/0xa0 [] writeback_inodes_sb+0x43/0x50 [] __sync_filesystem+0x3e/0x90 [] sync_filesystem+0x3a/0x70 [] generic_shutdown_super+0x27/0xe0 [] kill_block_super+0x31/0x50 [] deactivate_super+0x57/0x80 [] mntput_no_expire+0xbf/0x110 [] sys_umount+0x7b/0x3a0 [] system_call_fastpath+0x16/0x1b INFO: task xfsalloc/0:463 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. xfsalloc/0 D ffff880004b1b840 0 463 2 0x00000000 ffff88003eb27a50 0000000000000246 0000000000000000 0000000000000000 ffffffff810074fd ffff88003eb27a20 ffffffff81007ca2 0000000000000000 ffff8800045705f8 ffff88003eb27fd8 000000000000fbc8 ffff8800045705f8 Call Trace: [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] xlog_wait+0x72/0x90 [xfs] [] ? default_wake_function+0x0/0x20 [] ? xlog_state_release_iclog+0xb3/0xf0 [xfs] [] _xfs_log_force+0x1ae/0x240 [xfs] [] xfs_log_force+0x38/0x90 [xfs] [] xfs_alloc_ag_vextent_size+0x1b8/0x630 [xfs] [] xfs_alloc_ag_vextent+0xad/0x100 [xfs] [] xfs_alloc_vextent+0x2bc/0x610 [xfs] [] xfs_bmap_btalloc+0x267/0x700 [xfs] [] xfs_bmap_alloc+0xe/0x10 [xfs] [] __xfs_bmapi_allocate+0x102/0x340 [xfs] [] ? thread_return+0x4e/0x760 [] ? xen_force_evtchn_callback+0xd/0x10 [] xfs_bmapi_allocate_worker+0x70/0xa0 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] worker_thread+0x170/0x2a0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? autoremove_wake_function+0x0/0x40 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] ? worker_thread+0x0/0x2a0 [] kthread+0x96/0xa0 [] ? worker_thread+0x0/0x2a0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task flush-7:0:23981 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. flush-7:0 D ffff880004b1b840 0 23981 2 0x00000080 ffff88003eb6f970 0000000000000246 00000000ffffffff 003eccac90e64182 ffff88003eb6f8f0 ffff88003c28d2f0 0000000001063a6a ffffffffac679ecd ffff88003e018638 ffff88003eb6ffd8 000000000000fbc8 ffff88003e018638 Call Trace: [] ? ktime_get_ts+0xb1/0xf0 [] ? sync_page+0x0/0x50 [] io_schedule+0x73/0xc0 [] sync_page+0x3d/0x50 [] __wait_on_bit_lock+0x5a/0xc0 [] __lock_page+0x67/0x70 [] ? wake_bit_function+0x0/0x50 [] ? pagevec_lookup_tag+0x25/0x40 [] write_cache_pages+0x3cd/0x4c0 [] ? __writepage+0x0/0x40 [] ? xen_force_evtchn_callback+0xd/0x10 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] writeback_single_inode+0xdd/0x290 [] writeback_sb_inodes+0xbd/0x170 [] writeback_inodes_wb+0xab/0x1b0 [] wb_writeback+0x2f3/0x410 [] ? check_events+0x12/0x20 [] ? del_timer_sync+0x22/0x30 [] wb_do_writeback+0x1a5/0x240 [] bdi_writeback_task+0x63/0x1b0 [] ? bit_waitqueue+0x17/0xd0 [] ? bdi_start_fn+0x0/0x100 [] bdi_start_fn+0x86/0x100 [] ? bdi_start_fn+0x0/0x100 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 INFO: task loop1:15077 blocked for more than 120 seconds. Not tainted 2.6.32-431.17.1.el6.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. loop1 D ffff880004b1b840 0 15077 2 0x00000080 ffff88003e461500 0000000000000246 ffff88003e4614b0 ffffffffa00ed42d 000000000000000c ffff88003d513dc0 ffffea00005b7920 00000004005b78f8 ffff88003e454638 ffff88003e461fd8 000000000000fbc8 ffff88003e454638 Call Trace: [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] schedule_timeout+0x215/0x2e0 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] wait_for_common+0x123/0x180 [] ? default_wake_function+0x0/0x20 [] ? __queue_work+0x41/0x50 [] wait_for_completion+0x1d/0x20 [] xfs_bmapi_allocate+0xa8/0xd0 [xfs] [] ? xfs_bmap_search_multi_extents+0xad/0x120 [xfs] [] ? xfs_bmapi_allocate_worker+0x0/0xa0 [xfs] [] xfs_bmapi+0x8e6/0xee0 [xfs] [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? kmem_zone_alloc+0x77/0xf0 [xfs] [] xfs_iomap_write_allocate+0x140/0x370 [xfs] [] xfs_map_blocks+0x193/0x250 [xfs] [] xfs_vm_writepage+0x1f9/0x590 [xfs] [] __writepage+0x17/0x40 [] write_cache_pages+0x1fd/0x4c0 [] ? __writepage+0x0/0x40 [] generic_writepages+0x24/0x30 [] xfs_vm_writepages+0x5d/0x80 [xfs] [] do_writepages+0x21/0x40 [] __filemap_fdatawrite_range+0x5b/0x60 [] ? xen_end_context_switch+0x1e/0x30 [] filemap_write_and_wait_range+0x5a/0x90 [] vfs_fsync_range+0x7e/0x100 [] vfs_fsync+0x1d/0x20 [] do_bio_filebacked+0x317/0x330 [] ? xen_force_evtchn_callback+0xd/0x10 [] ? check_events+0x12/0x20 [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] loop_thread+0xd1/0x270 [] ? autoremove_wake_function+0x0/0x40 [] ? _spin_unlock_irqrestore+0x1c/0x20 [] ? loop_thread+0x0/0x270 [] kthread+0x96/0xa0 [] child_rip+0xa/0x20 [] ? int_ret_from_sys_call+0x7/0x1b [] ? retint_restore_args+0x5/0x6 [] ? child_rip+0x0/0x20 Stopping atd: [ OK ] Stopping sshd: [ OK ] Shutting down postfix: [ OK ] Stopping crond: [ OK ] Shutting down ntpd: [ OK ] Stopping block device availability: Deactivating block devices: [ OK ] Unmounting loopback filesystems: umount: /d: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))