Just in case it is interesting, here's the blocked state (take note I currently have other fs actions running on my btrfs root fs copying a lot of files from a remote server):
Kai Krakow <hurikhan77+bt...@gmail.com> schrieb: > This is what happened while rsyncing my system disk to my btrfs backup > device after I enabled space caching for the latter (and first time using > it after 3.3.1, last time I sync'ed it was with 3.2.x): > > [... dmesg output ...] [24701.417821] SysRq : Show Blocked State [24701.417826] task PC stack pid father [24701.417896] btrfs-delayed-m D ffff8802ddebd2e0 0 10993 2 0x00000000 [24701.417900] ffff8802ddebd2e0 0000000000000046 00000002bb866b00 ffff88042dc6d940 [24701.417903] ffff880300000002 ffff8803f68e7a98 0000000000010b00 ffff8802bbccdfd8 [24701.417906] ffff8802bbccdfd8 0000000000010b00 ffff8802ddebd2e0 0000000000010b00 [24701.417909] Call Trace: [24701.417914] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.417918] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.417921] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.417924] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.417927] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.417930] [<ffffffff81191a3f>] ? tree_insert+0x143/0x15f [24701.417933] [<ffffffff811d27a9>] ? radix_tree_tag_set+0x62/0xc4 [24701.417935] [<ffffffff8114d3f3>] ? insert_inline_extent_backref+0x63/0xea [24701.417939] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.417943] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.417945] [<ffffffff8114e3b8>] ? __btrfs_inc_extent_ref.clone.64+0xa9/0x1c9 [24701.417948] [<ffffffff8117a066>] ? map_private_extent_buffer+0x9d/0xde [24701.417951] [<ffffffff81152ac2>] ? run_clustered_refs+0x6a8/0x74a [24701.417953] [<ffffffff81147dc4>] ? comp_keys+0x23/0x28 [24701.417955] [<ffffffff81147eb5>] ? generic_bin_search.clone.43+0xec/0x130 [24701.417958] [<ffffffff81187026>] ? btrfs_tree_read_unlock+0x7b/0x8a [24701.417960] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.417963] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.417965] [<ffffffff81186ef2>] ? btrfs_tree_unlock+0x87/0x90 [24701.417968] [<ffffffff8114db18>] ? block_rsv_release_bytes.clone.46+0xad/0xc8 [24701.417970] [<ffffffff81160c40>] ? __btrfs_end_transaction+0x79/0x1e9 [24701.417973] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.417975] [<ffffffff81199aa6>] ? btrfs_async_run_delayed_node_done+0x16d/0x1cb [24701.417978] [<ffffffff811818f5>] ? worker_loop+0x17e/0x4c5 [24701.417980] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.417981] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.417984] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.417986] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.417988] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.417990] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.417993] btrfs-transacti D ffff8802ce3cd2e0 0 11002 2 0x00000000 [24701.417996] ffff8802ce3cd2e0 0000000000000046 0000000000000002 ffff88042dc6f2c0 [24701.417998] ffffffff00000000 0000000000000000 0000000000010b00 ffff8801f9401fd8 [24701.418001] ffff8801f9401fd8 0000000000010b00 ffff8802ce3cd2e0 0000000000010b00 [24701.418004] Call Trace: [24701.418006] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.418008] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418010] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.418012] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.418014] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418017] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418020] [<ffffffff8114f6af>] ? __btrfs_free_extent+0xcb/0x5c7 [24701.418022] [<ffffffff81152af8>] ? run_clustered_refs+0x6de/0x74a [24701.418025] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418028] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418030] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418032] [<ffffffff814592ab>] ? mutex_lock+0xd/0x2d [24701.418035] [<ffffffff8145a93c>] ? _raw_spin_lock_irqsave+0x9/0x22 [24701.418037] [<ffffffff8116056a>] ? btrfs_commit_transaction+0x8f/0x6d1 [24701.418039] [<ffffffff8104508d>] ? need_resched+0x1a/0x23 [24701.418042] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418044] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418046] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418048] [<ffffffff810b5e42>] ? kmem_cache_alloc+0x1c/0x95 [24701.418050] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418053] [<ffffffff81160fde>] ? start_transaction+0x1db/0x215 [24701.418055] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418057] [<ffffffff8115a9c6>] ? transaction_kthread+0x171/0x21b [24701.418059] [<ffffffff8115a855>] ? try_to_freeze+0x37/0x37 [24701.418061] [<ffffffff8115a855>] ? try_to_freeze+0x37/0x37 [24701.418063] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.418065] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.418067] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.418069] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.418071] rsync D ffff88029a5c3fc0 0 11012 1 0x00000004 [24701.418074] ffff88029a5c3fc0 0000000000000082 0000000000000003 ffff88042dc6d940 [24701.418076] 0000000000000050 0000000000000000 0000000000010b00 ffff8801b7671fd8 [24701.418079] ffff8801b7671fd8 0000000000010b00 ffff88029a5c3fc0 0000000000010b00 [24701.418082] Call Trace: [24701.418084] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.418086] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418088] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.418090] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.418092] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418095] [<ffffffff8117a066>] ? map_private_extent_buffer+0x9d/0xde [24701.418097] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418100] [<ffffffff8114f6af>] ? __btrfs_free_extent+0xcb/0x5c7 [24701.418102] [<ffffffff8114873b>] ? btrfs_leaf_free_space+0x31/0x6e [24701.418104] [<ffffffff81152af8>] ? run_clustered_refs+0x6de/0x74a [24701.418107] [<ffffffff814592ab>] ? mutex_lock+0xd/0x2d [24701.418109] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418112] [<ffffffff8116a0aa>] ? btrfs_add_link+0x176/0x1fb [24701.418114] [<ffffffff81160c40>] ? __btrfs_end_transaction+0x79/0x1e9 [24701.418116] [<ffffffff8116ad8a>] ? btrfs_create+0x173/0x1b4 [24701.418119] [<ffffffff81031028>] ? ns_capable+0x38/0x4b [24701.418121] [<ffffffff810c744d>] ? vfs_create+0x4f/0x6f [24701.418123] [<ffffffff810c7be4>] ? do_last+0x22b/0x57f [24701.418126] [<ffffffff810c8512>] ? path_openat+0xcf/0x32d [24701.418128] [<ffffffff810bcae2>] ? do_sync_write+0xb1/0xea [24701.418130] [<ffffffff810c8844>] ? do_filp_open+0x2c/0x72 [24701.418132] [<ffffffff8104508d>] ? need_resched+0x1a/0x23 [24701.418135] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418137] [<ffffffff811d74b1>] ? __strncpy_from_user+0x19/0x4a [24701.418140] [<ffffffff810d194f>] ? alloc_fd+0x69/0x110 [24701.418142] [<ffffffff810bc777>] ? do_sys_open+0x60/0xe7 [24701.418145] [<ffffffff8145b162>] ? system_call_fastpath+0x16/0x1b [24701.418146] btrfs-delayed-m D ffff8802ddebb300 0 11016 2 0x00000000 [24701.418149] ffff8802ddebb300 0000000000000046 0000000000000001 ffff88042dc6bfc0 [24701.418151] ffff88001e496e08 0000000019c00000 0000000000010b00 ffff88010e3adfd8 [24701.418154] ffff88010e3adfd8 0000000000010b00 ffff8802ddebb300 0000000000010b00 [24701.418157] Call Trace: [24701.418159] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.418161] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418163] [<ffffffff811d2f6b>] ? rb_insert_color+0xb1/0xd9 [24701.418165] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.418167] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.418170] [<ffffffff81191e7d>] ? add_delayed_tree_ref.clone.10+0xb7/0xee [24701.418172] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418175] [<ffffffff811507f5>] ? btrfs_lookup_extent_info+0x75/0x262 [24701.418177] [<ffffffff81179c0c>] ? read_extent_buffer+0x97/0xe2 [24701.418179] [<ffffffff81146b87>] ? update_ref_for_cow+0x44/0x216 [24701.418181] [<ffffffff81146f00>] ? __btrfs_cow_block+0x1a7/0x312 [24701.418183] [<ffffffff8114715f>] ? btrfs_cow_block+0xf4/0x103 [24701.418185] [<ffffffff81149bbd>] ? btrfs_search_slot+0x226/0x658 [24701.418188] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418190] [<ffffffff81159146>] ? btrfs_lookup_inode+0x25/0x87 [24701.418192] [<ffffffff8104508d>] ? need_resched+0x1a/0x23 [24701.418194] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418196] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418198] [<ffffffff814592ab>] ? mutex_lock+0xd/0x2d [24701.418200] [<ffffffff81198e2f>] ? btrfs_update_delayed_inode+0x6b/0x126 [24701.418203] [<ffffffff81160fde>] ? start_transaction+0x1db/0x215 [24701.418205] [<ffffffff811999d8>] ? btrfs_async_run_delayed_node_done+0x9f/0x1cb [24701.418207] [<ffffffff811818f5>] ? worker_loop+0x17e/0x4c5 [24701.418209] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418211] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418213] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.418215] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.418218] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.418220] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.418221] btrfs-endio-wri D ffff880079c28660 0 11038 2 0x00000000 [24701.418223] ffff880079c28660 0000000000000046 0000000000000050 ffff88042dc6f2c0 [24701.418226] 0000000000000002 0000000000000050 0000000000010b00 ffff88012389dfd8 [24701.418229] ffff88012389dfd8 0000000000010b00 ffff880079c28660 0000000000010b00 [24701.418231] Call Trace: [24701.418233] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.418235] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418237] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.418239] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.418242] [<ffffffff8108fed8>] ? __set_page_dirty_nobuffers+0x16/0xd2 [24701.418245] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418247] [<ffffffff81044f54>] ? __wake_up+0x35/0x46 [24701.418249] [<ffffffff81149048>] ? __push_leaf_right+0x37b/0x38f [24701.418252] [<ffffffff8114d3f3>] ? insert_inline_extent_backref+0x63/0xea [24701.418254] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418256] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418259] [<ffffffff8114e3b8>] ? __btrfs_inc_extent_ref.clone.64+0xa9/0x1c9 [24701.418261] [<ffffffff8115afc4>] ? verify_parent_transid+0x31/0xf9 [24701.418263] [<ffffffff81152ac2>] ? run_clustered_refs+0x6a8/0x74a [24701.418266] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418269] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418271] [<ffffffff8119a941>] ? btrfs_delayed_update_inode+0x340/0x363 [24701.418273] [<ffffffff81044f54>] ? __wake_up+0x35/0x46 [24701.418276] [<ffffffff81160c40>] ? __btrfs_end_transaction+0x79/0x1e9 [24701.418278] [<ffffffff81165953>] ? btrfs_finish_ordered_io+0x289/0x2ae [24701.418280] [<ffffffff81458f7b>] ? schedule_timeout+0xa8/0xd7 [24701.418283] [<ffffffff81190a6f>] ? end_compressed_bio_write+0x60/0xbb [24701.418284] [<ffffffff811818f5>] ? worker_loop+0x17e/0x4c5 [24701.418286] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418288] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418290] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.418292] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.418295] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.418297] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.418298] btrfs-delayed-m D ffff88020b5e9fe0 0 11041 2 0x00000000 [24701.418300] ffff88020b5e9fe0 0000000000000046 000000000000047f ffff88042dc6f2c0 [24701.418303] ffff880200000001 0000000000000000 0000000000010b00 ffff8801ccbedfd8 [24701.418306] ffff8801ccbedfd8 0000000000010b00 ffff88020b5e9fe0 0000000000010b00 [24701.418308] Call Trace: [24701.418310] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.418312] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418315] [<ffffffff8115043b>] ? find_free_extent.clone.71+0x7cb/0x950 [24701.418317] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.418319] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.418321] [<ffffffff811d2f6b>] ? rb_insert_color+0xb1/0xd9 [24701.418323] [<ffffffff81191a3f>] ? tree_insert+0x143/0x15f [24701.418326] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418328] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418330] [<ffffffff8114f6af>] ? __btrfs_free_extent+0xcb/0x5c7 [24701.418333] [<ffffffff81152af8>] ? run_clustered_refs+0x6de/0x74a [24701.418335] [<ffffffff81147dc4>] ? comp_keys+0x23/0x28 [24701.418337] [<ffffffff81187026>] ? btrfs_tree_read_unlock+0x7b/0x8a [24701.418340] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418342] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418344] [<ffffffff81186ef2>] ? btrfs_tree_unlock+0x87/0x90 [24701.418347] [<ffffffff8114db18>] ? block_rsv_release_bytes.clone.46+0xad/0xc8 [24701.418349] [<ffffffff81160c40>] ? __btrfs_end_transaction+0x79/0x1e9 [24701.418351] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418354] [<ffffffff81199aa6>] ? btrfs_async_run_delayed_node_done+0x16d/0x1cb [24701.418356] [<ffffffff811818f5>] ? worker_loop+0x17e/0x4c5 [24701.418357] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418359] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418361] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.418363] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.418366] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.418368] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.418369] btrfs-endio-wri D ffff880079c2b960 0 11043 2 0x00000000 [24701.418371] ffff880079c2b960 0000000000000046 ffff880425432ca8 ffffffff8180d020 [24701.418374] ffff880411c38200 ffffffff8117a066 0000000000010b00 ffff88010acc5fd8 [24701.418377] ffff88010acc5fd8 0000000000010b00 ffff880079c2b960 0000000000010b00 [24701.418379] Call Trace: [24701.418381] [<ffffffff8117a066>] ? map_private_extent_buffer+0x9d/0xde [24701.418384] [<ffffffff81186d0b>] ? btrfs_tree_lock+0xf5/0x24b [24701.418386] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418388] [<ffffffff811870bd>] ? btrfs_set_lock_blocking_rw+0x88/0xdf [24701.418390] [<ffffffff81149e7f>] ? btrfs_search_slot+0x4e8/0x658 [24701.418392] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418395] [<ffffffff81044f54>] ? __wake_up+0x35/0x46 [24701.418397] [<ffffffff8114901c>] ? __push_leaf_right+0x34f/0x38f [24701.418399] [<ffffffff8114d3f3>] ? insert_inline_extent_backref+0x63/0xea [24701.418401] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418404] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418416] [<ffffffff8114e3b8>] ? __btrfs_inc_extent_ref.clone.64+0xa9/0x1c9 [24701.418418] [<ffffffff8115afc4>] ? verify_parent_transid+0x31/0xf9 [24701.418420] [<ffffffff81152ac2>] ? run_clustered_refs+0x6a8/0x74a [24701.418422] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418424] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418426] [<ffffffff8119a941>] ? btrfs_delayed_update_inode+0x340/0x363 [24701.418428] [<ffffffff81044f54>] ? __wake_up+0x35/0x46 [24701.418430] [<ffffffff81160c40>] ? __btrfs_end_transaction+0x79/0x1e9 [24701.418432] [<ffffffff81165953>] ? btrfs_finish_ordered_io+0x289/0x2ae [24701.418434] [<ffffffff81458f7b>] ? schedule_timeout+0xa8/0xd7 [24701.418436] [<ffffffff81190a6f>] ? end_compressed_bio_write+0x60/0xbb [24701.418437] [<ffffffff811818f5>] ? worker_loop+0x17e/0x4c5 [24701.418439] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418441] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418442] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.418444] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.418446] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.418448] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.418449] btrfs-endio-wri D ffff8804250a8660 0 11069 2 0x00000000 [24701.418451] ffff8804250a8660 0000000000000046 ffff8801cfe0c7c0 ffff88029a5c5fa0 [24701.418453] 0000000000000001 ffffffff8117a066 0000000000010b00 ffff8801c5225fd8 [24701.418455] ffff8801c5225fd8 0000000000010b00 ffff8804250a8660 0000000000010b00 [24701.418458] Call Trace: [24701.418459] [<ffffffff8117a066>] ? map_private_extent_buffer+0x9d/0xde [24701.418461] [<ffffffff81186d0b>] ? btrfs_tree_lock+0xf5/0x24b [24701.418463] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418465] [<ffffffff811870bd>] ? btrfs_set_lock_blocking_rw+0x88/0xdf [24701.418467] [<ffffffff81149e7f>] ? btrfs_search_slot+0x4e8/0x658 [24701.418469] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418471] [<ffffffff81179510>] ? free_extent_buffer+0x12/0x30 [24701.418472] [<ffffffff8114901c>] ? __push_leaf_right+0x34f/0x38f [24701.418474] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418476] [<ffffffff8114f6af>] ? __btrfs_free_extent+0xcb/0x5c7 [24701.418478] [<ffffffff8115afc4>] ? verify_parent_transid+0x31/0xf9 [24701.418480] [<ffffffff8117a066>] ? map_private_extent_buffer+0x9d/0xde [24701.418482] [<ffffffff81152af8>] ? run_clustered_refs+0x6de/0x74a [24701.418484] [<ffffffff81191879>] ? find_ref_head+0x8e/0xbb [24701.418487] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418489] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418491] [<ffffffff8119a941>] ? btrfs_delayed_update_inode+0x340/0x363 [24701.418493] [<ffffffff81044f54>] ? __wake_up+0x35/0x46 [24701.418495] [<ffffffff81160c40>] ? __btrfs_end_transaction+0x79/0x1e9 [24701.418496] [<ffffffff81165953>] ? btrfs_finish_ordered_io+0x289/0x2ae [24701.418498] [<ffffffff81458f7b>] ? schedule_timeout+0xa8/0xd7 [24701.418500] [<ffffffff81190a6f>] ? end_compressed_bio_write+0x60/0xbb [24701.418502] [<ffffffff811818f5>] ? worker_loop+0x17e/0x4c5 [24701.418503] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418505] [<ffffffff81181777>] ? btrfs_queue_worker+0x273/0x273 [24701.418507] [<ffffffff8103ee71>] ? kthread+0x81/0x89 [24701.418508] [<ffffffff8145c254>] ? kernel_thread_helper+0x4/0x10 [24701.418510] [<ffffffff8103edf0>] ? kthread_freezable_should_stop+0x3c/0x3c [24701.418512] [<ffffffff8145c250>] ? gs_change+0xb/0xb [24701.418516] btrfs D ffff88018a4aaca0 0 7238 11004 0x00000004 [24701.418518] ffff88018a4aaca0 0000000000000086 ffff88032da29400 ffff8803dddef2c0 [24701.418521] ffff88043fb10b78 ffffffff8104b926 0000000000010b00 ffff88029775bfd8 [24701.418523] ffff88029775bfd8 0000000000010b00 ffff88018a4aaca0 0000000000010b00 [24701.418525] Call Trace: [24701.418527] [<ffffffff8104b926>] ? update_shares+0x5f/0xf9 [24701.418529] [<ffffffff81186b11>] ? btrfs_tree_read_lock+0xc5/0x110 [24701.418531] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418533] [<ffffffff811468ee>] ? btrfs_read_lock_root_node+0x1d/0x3f [24701.418534] [<ffffffff81149adc>] ? btrfs_search_slot+0x145/0x658 [24701.418537] [<ffffffff8114d0da>] ? lookup_inline_extent_backref+0xb8/0x36e [24701.418539] [<ffffffff81045000>] ? set_rq_online+0x47/0x57 [24701.418540] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418542] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418544] [<ffffffff8114f6af>] ? __btrfs_free_extent+0xcb/0x5c7 [24701.418546] [<ffffffff8117a066>] ? map_private_extent_buffer+0x9d/0xde [24701.418548] [<ffffffff810d055f>] ? find_inode+0x59/0x9a [24701.418550] [<ffffffff81045000>] ? set_rq_online+0x47/0x57 [24701.418552] [<ffffffff81152af8>] ? run_clustered_refs+0x6de/0x74a [24701.418554] [<ffffffff81179510>] ? free_extent_buffer+0x12/0x30 [24701.418557] [<ffffffff81152d84>] ? btrfs_run_delayed_refs+0x220/0x2ed [24701.418559] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418561] [<ffffffff81459e41>] ? _cond_resched+0x9/0x20 [24701.418562] [<ffffffff814592ab>] ? mutex_lock+0xd/0x2d [24701.418564] [<ffffffff8116056a>] ? btrfs_commit_transaction+0x8f/0x6d1 [24701.418577] [<ffffffff8104508d>] ? need_resched+0x1a/0x23 [24701.418579] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418581] [<ffffffff8115fd42>] ? wait_current_trans.clone.28+0x1a/0xd6 [24701.418583] [<ffffffff810b4bbd>] ? slab_pre_alloc_hook.clone.49+0x15/0x1c [24701.418585] [<ffffffff810b5e42>] ? kmem_cache_alloc+0x1c/0x95 [24701.418588] [<ffffffff8103f234>] ? wake_up_bit+0x23/0x23 [24701.418590] [<ffffffff811836ad>] ? btrfs_mksubvol+0x20c/0x2f8 [24701.418592] [<ffffffff811838cc>] ? btrfs_ioctl_snap_create_transid+0x133/0x162 [24701.418594] [<ffffffff8104509b>] ? should_resched+0x5/0x24 [24701.418596] [<ffffffff81183941>] ? btrfs_ioctl_snap_create+0x46/0x5f [24701.418599] [<ffffffff811fd9f4>] ? do_output_char+0x96/0x1ae [24701.418601] [<ffffffff81185e35>] ? btrfs_ioctl+0x525/0x1034 [24701.418603] [<ffffffff811fee18>] ? n_tty_write+0x31f/0x352 [24701.418605] [<ffffffff810e70dd>] ? fsnotify+0x235/0x25b [24701.418608] [<ffffffff81044f54>] ? __wake_up+0x35/0x46 [24701.418610] [<ffffffff810ca559>] ? do_vfs_ioctl+0x458/0x499 [24701.418612] [<ffffffff810bd1db>] ? vfs_write+0xcb/0xf9 [24701.418614] [<ffffffff810ca5d6>] ? sys_ioctl+0x3c/0x5e [24701.418617] [<ffffffff8145b162>] ? system_call_fastpath+0x16/0x1b -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
