One of my Btrfs partitions ran into a severe slowdown recently. Operations that would normally complete in 20-30 seconds were now requiring hours. There were no errors or warnings in dmesg (Alt-SysRq-W is below, but shows nothing out of the ordinary). And if I took the partition offline, it would pass btrfsck without error. So far, I''ve found not indications of corruption. The kernel is a version 3.6.6 merged with the for-linus branch for 3.7. I usually mount with compress-force-lzo, but no autodefrag or other options. The symptoms were consistent with some kind of corner case metadata starvation. While under pressure, my ''btrfs df'' would show something like the following: # btrfs fi df /mnt/sabayon9/ Data: total=7.00GB, used=6.00GB System: total=4.00MB, used=4.00KB Metadata: total=768.00MB, used=737.65MB For some reason, btrfs was not allocating any additional metadata space. The partition is 25 GB, and not very full: /dev/sda2 btrfs 25165824 7047816 18082844 29% /mnt/sabayon9 When I rebooted into a 3.4 kernel (which is merged with the Btrfs code for 3.5), the slow down cleared after I mounted the partition, and triggered an allocation of metadata up to 1 GB. I would note that I tried my 3.5 vintage kernel (which is merged with the Btrfs code for 3.6), and was unable to clear the issue. This tends to strengthen my suspicion that this is some kind of corner case since this code has been out there for a while now. Currently, I''m showing something like this with ''btrfs df'' # btrfs fi df /mnt/sabayon9/ Data: total=8.00GB, used=5.97GB System: total=4.00MB, used=4.00KB Metadata: total=1.00GB, used=722.65MB Now, everything is operating normally in my 3.6.6 kernel. I''ve saved an image of the partition in it''s ''slow-down'' condition in case it becomes desirable to test something in that condition. I''m including my dmesg output of an Alt-SysRq-W operation, but I don''t see anything useful there. [18697.498504] SysRq : Show Blocked State [18697.498510] task PC stack pid father [18697.498551] btrfs-submit-1 D 0000000000000210 0 4236 2 0x00000000 [18697.498556] ffff880123d53b70 0000000000000046 ffff8801231908d0 ffff880123d53fd8 [18697.498560] 0000000000004000 0000000000012700 ffff88012aaf4380 ffff880124269680 [18697.498563] 0000000000000006 ffff880125e18000 ffff880125e18000 0000000000000000 [18697.498567] Call Trace: [18697.498576] [<ffffffff812d8750>] ? __blk_run_queue+0x1e/0x20 [18697.498580] [<ffffffff812db573>] ? queue_unplugged+0x83/0x99 [18697.498585] [<ffffffff8161dcf4>] schedule+0x64/0x66 [18697.498588] [<ffffffff8161dd85>] io_schedule+0x8f/0xce [18697.498591] [<ffffffff812dd520>] get_request+0x559/0x5b0 [18697.498596] [<ffffffff8104c79b>] ? abort_exclusive_wait+0x8e/0x8e [18697.498599] [<ffffffff812de7de>] blk_queue_bio+0x1b7/0x315 [18697.498602] [<ffffffff812dcbc3>] generic_make_request+0x9f/0xe1 [18697.498605] [<ffffffff812dcce9>] submit_bio+0xe4/0x103 [18697.498640] [<ffffffffa006a145>] run_scheduled_bios+0x28c/0x428 [btrfs] [18697.498660] [<ffffffffa006a2f6>] pending_bios_fn+0x15/0x17 [btrfs] [18697.498679] [<ffffffffa0071840>] worker_loop+0x15f/0x497 [btrfs] [18697.498698] [<ffffffffa00716e1>] ? btrfs_queue_worker+0x272/0x272 [btrfs] [18697.498702] [<ffffffff8104c072>] kthread+0x8b/0x93 [18697.498707] [<ffffffff816205b4>] kernel_thread_helper+0x4/0x10 [18697.498710] [<ffffffff8104bfe7>] ? kthread_freezable_should_stop+0x57/0x57 [18697.498714] [<ffffffff816205b0>] ? gs_change+0xb/0xb [18697.498718] btrfs-transacti D 0000000000000002 0 4248 2 0x00000000 [18697.498721] ffff880123d83b70 0000000000000046 0000000000000000 ffff880123d83fd8 [18697.498725] 0000000000004000 0000000000012700 ffff88012aaf4380 ffff880123d79680 [18697.498728] ffffffffa0049342 ffff880123d83bf0 ffff880123d83b10 ffffffff810c9ee4 [18697.498732] Call Trace: [18697.498748] [<ffffffffa0049342>] ? check_leaf+0x2d4/0x2d4 [btrfs] [18697.498753] [<ffffffff810c9ee4>] ? release_pages+0x1b2/0x1c1 [18697.498772] [<ffffffffa0063068>] ? submit_one_bio+0x8a/0x94 [btrfs] [18697.498776] [<ffffffff8106c8db>] ? ktime_get_ts+0x56/0xbc [18697.498780] [<ffffffff8109c171>] ? delayacct_end+0x79/0x84 [18697.498784] [<ffffffff810bf744>] ? __lock_page+0x68/0x68 [18697.498787] [<ffffffff8161dcf4>] schedule+0x64/0x66 [18697.498790] [<ffffffff8161dd85>] io_schedule+0x8f/0xce [18697.498793] [<ffffffff810bf752>] sleep_on_page+0xe/0x12 [18697.498796] [<ffffffff8161c436>] __wait_on_bit+0x48/0x7b [18697.498799] [<ffffffff810bf4b9>] ? find_get_pages_tag+0xf4/0x130 [18697.498803] [<ffffffff810bf97d>] wait_on_page_bit+0x72/0x74 [18697.498806] [<ffffffff8104c7d3>] ? autoremove_wake_function+0x38/0x38 [18697.498810] [<ffffffff810bfa4c>] filemap_fdatawait_range+0x87/0x13e [18697.498829] [<ffffffffa0063c09>] ? free_extent_state+0x7d/0x85 [btrfs] [18697.498849] [<ffffffffa0064631>] ? clear_extent_bit+0x272/0x2aa [btrfs] [18697.498866] [<ffffffffa004f696>] btrfs_wait_marked_extents+0x7d/0xce [btrfs] [18697.498884] [<ffffffffa004f715>] btrfs_write_and_wait_marked_extents+0x2e/0x3e [btrfs] [18697.498902] [<ffffffffa004f769>] btrfs_write_and_wait_transaction+0x44/0x46 [btrfs] [18697.498919] [<ffffffffa004fea0>] btrfs_commit_transaction+0x65b/0x969 [btrfs] [18697.498923] [<ffffffff8104c79b>] ? abort_exclusive_wait+0x8e/0x8e [18697.498939] [<ffffffffa0049700>] transaction_kthread+0xdf/0x1a0 [btrfs] [18697.498956] [<ffffffffa0049621>] ? cleaner_kthread+0xe6/0xe6 [btrfs] [18697.498959] [<ffffffff8104c072>] kthread+0x8b/0x93 [18697.498963] [<ffffffff816205b4>] kernel_thread_helper+0x4/0x10 [18697.498967] [<ffffffff8104bfe7>] ? kthread_freezable_should_stop+0x57/0x57 [18697.498970] [<ffffffff816205b0>] ? gs_change+0xb/0xb [18697.498987] cp D 0000000000030000 0 5847 4147 0x00000000 [18697.498990] ffff880100ce1ba8 0000000000000086 ffff880100ce1aa8 ffff880100ce1fd8 [18697.498994] 0000000000004000 0000000000012700 ffff880123d79680 ffff880096ea2d00 [18697.498998] ffff880100ce1b28 0000000000000004 ffff880100ce1ae8 ffff880124339b00 [18697.499001] Call Trace: [18697.499016] [<ffffffffa003e133>] ? reserve_metadata_bytes.isra.61+0x229/0x6ac [btrfs] [18697.499020] [<ffffffff8161dcf4>] schedule+0x64/0x66 [18697.499037] [<ffffffffa004f309>] wait_current_trans.isra.28+0xac/0xdd [btrfs] [18697.499041] [<ffffffff8104c79b>] ? abort_exclusive_wait+0x8e/0x8e [18697.499059] [<ffffffffa00508a6>] start_transaction+0x3ae/0x3c3 [btrfs] [18697.499077] [<ffffffffa0050b5f>] btrfs_start_transaction+0x15/0x17 [btrfs] [18697.499096] [<ffffffffa00615b0>] __btrfs_setxattr+0x4d/0xd9 [btrfs] [18697.499115] [<ffffffffa009cfe7>] btrfs_set_acl+0x10b/0x19c [btrfs] [18697.499119] [<ffffffff81118b07>] ? __d_lookup+0x67/0x133 [18697.499137] [<ffffffffa009d100>] btrfs_xattr_acl_set+0x88/0xb4 [btrfs] [18697.499141] [<ffffffff8111de43>] ? mntput_no_expire+0x3f/0x13c [18697.499144] [<ffffffff811213d6>] generic_removexattr+0x4f/0x56 [18697.499164] [<ffffffffa0061a85>] btrfs_removexattr+0x51/0x86 [btrfs] [18697.499167] [<ffffffff811215f8>] vfs_removexattr+0x83/0xf1 [18697.499170] [<ffffffff811216c1>] removexattr+0x5b/0x7b [18697.499174] [<ffffffff8110ee64>] ? putname+0x32/0x3b [18697.499177] [<ffffffff81112b71>] ? user_path_at_empty+0x61/0x92 [18697.499181] [<ffffffff81106e5e>] ? __sb_start_write+0xbc/0xf0 [18697.499184] [<ffffffff8111de43>] ? mntput_no_expire+0x3f/0x13c [18697.499187] [<ffffffff8111e19f>] ? __mnt_want_write+0x37/0x4f [18697.499190] [<ffffffff8111e1e3>] ? mnt_want_write+0x2c/0x4b [18697.499193] [<ffffffff811223d2>] sys_removexattr+0x4d/0x6c [18697.499197] [<ffffffff8161f3d6>] system_call_fastpath+0x1a/0x1f [18697.499201] Sched Debug Version: v0.10, 3.6.6-git-local+ #1 [18697.499203] ktime : 18697499.202192 [18697.499205] sched_clk : 18649901.375756 [18697.499207] cpu_clk : 18697499.200417 [18697.499209] jiffies : 4313364794 [18697.499210] sched_clock_stable : 0 [18697.499211] [18697.499212] sysctl_sched [18697.499214] .sysctl_sched_latency : 12.000000 [18697.499216] .sysctl_sched_min_granularity : 1.500000 [18697.499217] .sysctl_sched_wakeup_granularity : 2.000000 [18697.499219] .sysctl_sched_child_runs_first : 0 [18697.499220] .sysctl_sched_features : 24119 [18697.499222] .sysctl_sched_tunable_scaling : 1 (logaritmic) [18697.499224] [18697.499224] cpu#0, 2666.778 MHz [18697.499226] .nr_running : 0 [18697.499228] .load : 0 [18697.499229] .nr_switches : 8543763 [18697.499231] .nr_load_updates : 7498116 [18697.499232] .nr_uninterruptible : -65 [18697.499234] .next_balance : 4313.364935 [18697.499235] .curr->pid : 0 [18697.499237] .clock : 18697492.765964 [18697.499239] .cpu_load[0] : 0 [18697.499240] .cpu_load[1] : 0 [18697.499241] .cpu_load[2] : 0 [18697.499242] .cpu_load[3] : 0 [18697.499244] .cpu_load[4] : 22 [18697.499245] .yld_count : 2011 [18697.499246] .sched_count : 8848041 [18697.499248] .sched_goidle : 2422414 [18697.499249] .avg_idle : 1000000 [18697.499251] .ttwu_count : 4070219 [18697.499252] .ttwu_local : 2763355 [18697.499254] [18697.499254] cfs_rq[0]:/autogroup-10 [18697.499257] .exec_clock : 517.528854 [18697.499258] .MIN_vruntime : 0.000001 [18697.499260] .min_vruntime : 1475.651593 [18697.499262] .max_vruntime : 0.000001 [18697.499263] .spread : 0.000000 [18697.499265] .spread0 : -12058621.131098 [18697.499266] .nr_spread_over : 188 [18697.499268] .nr_running : 0 [18697.499269] .load : 0 [18697.499271] .load_avg : 319.999968 [18697.499272] .load_period : 6.594176 [18697.499274] .load_contrib : 48 [18697.499275] .load_tg : 48 [18697.499277] .se->exec_start : 18697468.292146 [18697.499279] .se->vruntime : 12060089.947822 [18697.499281] .se->sum_exec_runtime : 517.547323 [18697.499282] .se->statistics.wait_start : 0.000000 [18697.499284] .se->statistics.sleep_start : 0.000000 [18697.499285] .se->statistics.block_start : 0.000000 [18697.499287] .se->statistics.sleep_max : 0.000000 [18697.499288] .se->statistics.block_max : 0.000000 [18697.499290] .se->statistics.exec_max : 9.876033 [18697.499292] .se->statistics.slice_max : 0.515916 [18697.499293] .se->statistics.wait_max : 3.792060 [18697.499295] .se->statistics.wait_sum : 19.139268 [18697.499296] .se->statistics.wait_count : 9966 [18697.499298] .se->load.weight : 2 [18697.499300] [18697.499300] cfs_rq[0]:/ [18697.499302] .exec_clock : 5842563.144833 [18697.499304] .MIN_vruntime : 0.000001 [18697.499306] .min_vruntime : 12060096.782691 [18697.499307] .max_vruntime : 0.000001 [18697.499309] .spread : 0.000000 [18697.499310] .spread0 : 0.000000 [18697.499312] .nr_spread_over : 1914 [18697.499313] .nr_running : 0 [18697.499314] .load : 0 [18697.499316] .load_avg : 0.000000 [18697.499317] .load_period : 0.000000 [18697.499319] .load_contrib : 0 [18697.499320] .load_tg : 0 [18697.499322] [18697.499322] rt_rq[0]: [18697.499323] .rt_nr_running : 0 [18697.499325] .rt_throttled : 0 [18697.499326] .rt_time : 0.000000 [18697.499328] .rt_runtime : 950.000000 [18697.499330] [18697.499330] runnable tasks: [18697.499330] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [18697.499330] ---------------------------------------------------------------------------------------------------------- [18697.499349] [18697.499349] cpu#1, 2666.778 MHz [18697.499351] .nr_running : 0 [18697.499352] .load : 0 [18697.499353] .nr_switches : 8541355 [18697.499355] .nr_load_updates : 7522324 [18697.499356] .nr_uninterruptible : 68 [18697.499358] .next_balance : 4313.364923 [18697.499359] .curr->pid : 0 [18697.499361] .clock : 18697487.653089 [18697.499362] .cpu_load[0] : 0 [18697.499364] .cpu_load[1] : 0 [18697.499365] .cpu_load[2] : 0 [18697.499366] .cpu_load[3] : 1 [18697.499368] .cpu_load[4] : 48 [18697.499369] .yld_count : 170835 [18697.499370] .sched_count : 9035951 [18697.499372] .sched_goidle : 2395497 [18697.499373] .avg_idle : 890294 [18697.499375] .ttwu_count : 4174757 [18697.499376] .ttwu_local : 2827268 [18697.499378] [18697.499378] cfs_rq[1]:/autogroup-35 [18697.499380] .exec_clock : 30930.525657 [18697.499382] .MIN_vruntime : 0.000001 [18697.499383] .min_vruntime : 30935.261755 [18697.499385] .max_vruntime : 0.000001 [18697.499386] .spread : 0.000000 [18697.499388] .spread0 : -12029161.520936 [18697.499389] .nr_spread_over : 2 [18697.499391] .nr_running : 0 [18697.499392] .load : 0 [18697.499394] .load_avg : 3.527416 [18697.499395] .load_period : 8.786121 [18697.499397] .load_contrib : 0 [18697.499398] .load_tg : 0 [18697.499400] .se->exec_start : 18697463.132124 [18697.499402] .se->vruntime : 12034839.379971 [18697.499403] .se->sum_exec_runtime : 30932.319294 [18697.499405] .se->statistics.wait_start : 0.000000 [18697.499406] .se->statistics.sleep_start : 0.000000 [18697.499408] .se->statistics.block_start : 0.000000 [18697.499410] .se->statistics.sleep_max : 0.000000 [18697.499411] .se->statistics.block_max : 0.000000 [18697.499413] .se->statistics.exec_max : 8.785310 [18697.499414] .se->statistics.slice_max : 10.840062 [18697.499416] .se->statistics.wait_max : 22.000422 [18697.499418] .se->statistics.wait_sum : 1792.026119 [18697.499419] .se->statistics.wait_count : 259517 [18697.499421] .se->load.weight : 2 [18697.499422] [18697.499422] cfs_rq[1]:/ [18697.499424] .exec_clock : 5857108.141776 [18697.499426] .MIN_vruntime : 0.000001 [18697.499428] .min_vruntime : 12034846.600155 [18697.499429] .max_vruntime : 0.000001 [18697.499431] .spread : 0.000000 [18697.499432] .spread0 : -25250.182536 [18697.499434] .nr_spread_over : 1735 [18697.499435] .nr_running : 0 [18697.499437] .load : 0 [18697.499438] .load_avg : 0.000000 [18697.499440] .load_period : 0.000000 [18697.499441] .load_contrib : 0 [18697.499442] .load_tg : 0 [18697.499444] [18697.499444] rt_rq[1]: [18697.499445] .rt_nr_running : 0 [18697.499447] .rt_throttled : 0 [18697.499448] .rt_time : 0.000000 [18697.499450] .rt_runtime : 950.000000 [18697.499452] [18697.499452] runnable tasks: [18697.499452] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [18697.499452] ---------------------------------------------------------------------------------------------------------- [18697.499465] [18802.797748] SysRq : Show Blocked State [18802.797754] task PC stack pid father [18802.797798] btrfs-transacti D 0000000000000002 0 4248 2 0x00000000 [18802.797803] ffff880123d83b70 0000000000000046 ffff880126b25a48 ffff880123d83fd8 [18802.797807] 0000000000004000 0000000000012700 ffffffff81c14410 ffff880123d79680 [18802.797810] ffff88012fc12770 ffff880126b25a48 ffff880123d83af0 ffffffff8105cf95 [18802.797814] Call Trace: [18802.797823] [<ffffffff8105cf95>] ? pick_next_task_fair+0xcb/0x12c [18802.797859] [<ffffffffa0063310>] ? alloc_extent_state+0x20/0x9f [btrfs] [18802.797863] [<ffffffff8161d97d>] ? __schedule+0x7a2/0x83a [18802.797867] [<ffffffff8106c8db>] ? ktime_get_ts+0x56/0xbc [18802.797871] [<ffffffff8109c171>] ? delayacct_end+0x79/0x84 [18802.797876] [<ffffffff810bf744>] ? __lock_page+0x68/0x68 [18802.797878] [<ffffffff8161dcf4>] schedule+0x64/0x66 [18802.797881] [<ffffffff8161dd85>] io_schedule+0x8f/0xce [18802.797885] [<ffffffff810bf752>] sleep_on_page+0xe/0x12 [18802.797888] [<ffffffff8161c436>] __wait_on_bit+0x48/0x7b [18802.797891] [<ffffffff810bf4b9>] ? find_get_pages_tag+0xf4/0x130 [18802.797894] [<ffffffff810bf97d>] wait_on_page_bit+0x72/0x74 [18802.797899] [<ffffffff8104c7d3>] ? autoremove_wake_function+0x38/0x38 [18802.797902] [<ffffffff810bfa4c>] filemap_fdatawait_range+0x87/0x13e [18802.797921] [<ffffffffa0063c09>] ? free_extent_state+0x7d/0x85 [btrfs] [18802.797941] [<ffffffffa0064631>] ? clear_extent_bit+0x272/0x2aa [btrfs] [18802.797959] [<ffffffffa004f696>] btrfs_wait_marked_extents+0x7d/0xce [btrfs] [18802.797977] [<ffffffffa004f715>] btrfs_write_and_wait_marked_extents+0x2e/0x3e [btrfs] [18802.797994] [<ffffffffa004f769>] btrfs_write_and_wait_transaction+0x44/0x46 [btrfs] [18802.798012] [<ffffffffa004fea0>] btrfs_commit_transaction+0x65b/0x969 [btrfs] [18802.798015] [<ffffffff8104c79b>] ? abort_exclusive_wait+0x8e/0x8e [18802.798032] [<ffffffffa0049700>] transaction_kthread+0xdf/0x1a0 [btrfs] [18802.798048] [<ffffffffa0049621>] ? cleaner_kthread+0xe6/0xe6 [btrfs] [18802.798052] [<ffffffff8104c072>] kthread+0x8b/0x93 [18802.798056] [<ffffffff816205b4>] kernel_thread_helper+0x4/0x10 [18802.798060] [<ffffffff8104bfe7>] ? kthread_freezable_should_stop+0x57/0x57 [18802.798063] [<ffffffff816205b0>] ? gs_change+0xb/0xb [18802.798079] cp D 0000000000078000 0 5847 4147 0x00000000 [18802.798083] ffff880100ce1b48 0000000000000086 ffff880100ce1a48 ffff880100ce1fd8 [18802.798086] 0000000000004000 0000000000012700 ffff88002e5cad00 ffff880096ea2d00 [18802.798090] ffff88008a7c6968 0000000000000004 ffff880100ce1ba7 ffff880124339b00 [18802.798093] Call Trace: [18802.798108] [<ffffffffa003e133>] ? reserve_metadata_bytes.isra.61+0x229/0x6ac [btrfs] [18802.798122] [<ffffffffa00352e9>] ? btrfs_search_slot+0x6fc/0x75f [btrfs] [18802.798125] [<ffffffff8161dcf4>] schedule+0x64/0x66 [18802.798142] [<ffffffffa004f309>] wait_current_trans.isra.28+0xac/0xdd [btrfs] [18802.798146] [<ffffffff8104c79b>] ? abort_exclusive_wait+0x8e/0x8e [18802.798164] [<ffffffffa00508a6>] start_transaction+0x3ae/0x3c3 [btrfs] [18802.798177] [<ffffffffa00309fc>] ? btrfs_free_path+0x27/0x2c [btrfs] [18802.798194] [<ffffffffa0050b5f>] btrfs_start_transaction+0x15/0x17 [btrfs] [18802.798213] [<ffffffffa005b763>] btrfs_create+0x3a/0x1e0 [btrfs] [18802.798217] [<ffffffff811101ad>] vfs_create+0x98/0xf1 [18802.798220] [<ffffffff81111f60>] do_last+0x645/0xbd1 [18802.798224] [<ffffffff8110f4d2>] ? link_path_walk+0x7e/0x79c [18802.798227] [<ffffffff811125b1>] path_openat+0xc5/0x424 [18802.798231] [<ffffffff81112bed>] do_filp_open+0x38/0x86 [18802.798235] [<ffffffff8111cbe6>] ? alloc_fd+0x72/0x101 [18802.798239] [<ffffffff81104d05>] do_sys_open+0x112/0x1a4 [18802.798242] [<ffffffff81104db8>] sys_open+0x21/0x23 [18802.798246] [<ffffffff8161f3d6>] system_call_fastpath+0x1a/0x1f [18802.798251] Sched Debug Version: v0.10, 3.6.6-git-local+ #1 [18802.798253] ktime : 18802798.250983 [18802.798255] sched_clk : 18754926.134124 [18802.798256] cpu_clk : 18802798.249729 [18802.798258] jiffies : 4313470093 [18802.798259] sched_clock_stable : 0 [18802.798260] [18802.798262] sysctl_sched [18802.798263] .sysctl_sched_latency : 12.000000 [18802.798265] .sysctl_sched_min_granularity : 1.500000 [18802.798267] .sysctl_sched_wakeup_granularity : 2.000000 [18802.798268] .sysctl_sched_child_runs_first : 0 [18802.798270] .sysctl_sched_features : 24119 [18802.798271] .sysctl_sched_tunable_scaling : 1 (logaritmic) [18802.798274] [18802.798274] cpu#0, 2666.778 MHz [18802.798276] .nr_running : 0 [18802.798277] .load : 0 [18802.798279] .nr_switches : 8667113 [18802.798280] .nr_load_updates : 7533867 [18802.798282] .nr_uninterruptible : -70 [18802.798283] .next_balance : 4313.470181 [18802.798285] .curr->pid : 0 [18802.798287] .clock : 18802797.530296 [18802.798288] .cpu_load[0] : 0 [18802.798289] .cpu_load[1] : 0 [18802.798291] .cpu_load[2] : 0 [18802.798292] .cpu_load[3] : 6 [18802.798293] .cpu_load[4] : 14 [18802.798295] .yld_count : 2011 [18802.798296] .sched_count : 8988377 [18802.798298] .sched_goidle : 2467717 [18802.798299] .avg_idle : 1000000 [18802.798300] .ttwu_count : 4134537 [18802.798302] .ttwu_local : 2815417 [18802.798304] [18802.798304] cfs_rq[0]:/autogroup-35 [18802.798306] .exec_clock : 28601.033797 [18802.798308] .MIN_vruntime : 0.000001 [18802.798310] .min_vruntime : 28598.089785 [18802.798311] .max_vruntime : 0.000001 [18802.798313] .spread : 0.000000 [18802.798315] .spread0 : -12034226.063599 [18802.798316] .nr_spread_over : 0 [18802.798318] .nr_running : 0 [18802.798319] .load : 0 [18802.798321] .load_avg : 44.871676 [18802.798322] .load_period : 8.608018 [18802.798324] .load_contrib : 5 [18802.798325] .load_tg : 5 [18802.798327] .se->exec_start : 18802782.433811 [18802.798329] .se->vruntime : 12062817.920135 [18802.798330] .se->sum_exec_runtime : 28602.752864 [18802.798332] .se->statistics.wait_start : 0.000000 [18802.798334] .se->statistics.sleep_start : 0.000000 [18802.798335] .se->statistics.block_start : 0.000000 [18802.798337] .se->statistics.sleep_max : 0.000000 [18802.798338] .se->statistics.block_max : 0.000000 [18802.798340] .se->statistics.exec_max : 9.949400 [18802.798342] .se->statistics.slice_max : 16.022897 [18802.798343] .se->statistics.wait_max : 18.604128 [18802.798345] .se->statistics.wait_sum : 1373.495158 [18802.798347] .se->statistics.wait_count : 243328 [18802.798348] .se->load.weight : 2 [18802.798350] [18802.798350] cfs_rq[0]:/ [18802.798352] .exec_clock : 5846108.499298 [18802.798354] .MIN_vruntime : 0.000001 [18802.798355] .min_vruntime : 12062824.153384 [18802.798357] .max_vruntime : 0.000001 [18802.798359] .spread : 0.000000 [18802.798360] .spread0 : 0.000000 [18802.798361] .nr_spread_over : 1914 [18802.798363] .nr_running : 0 [18802.798364] .load : 0 [18802.798366] .load_avg : 0.000000 [18802.798367] .load_period : 0.000000 [18802.798369] .load_contrib : 0 [18802.798370] .load_tg : 0 [18802.798371] [18802.798371] rt_rq[0]: [18802.798373] .rt_nr_running : 0 [18802.798375] .rt_throttled : 0 [18802.798376] .rt_time : 0.000000 [18802.798378] .rt_runtime : 950.000000 [18802.798380] [18802.798380] runnable tasks: [18802.798380] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [18802.798380] ---------------------------------------------------------------------------------------------------------- [18802.798396] [18802.798396] cpu#1, 2666.778 MHz [18802.798398] .nr_running : 0 [18802.798399] .load : 0 [18802.798401] .nr_switches : 8667417 [18802.798402] .nr_load_updates : 7558261 [18802.798404] .nr_uninterruptible : 72 [18802.798405] .next_balance : 4313.470188 [18802.798407] .curr->pid : 0 [18802.798409] .clock : 18802789.528166 [18802.798410] .cpu_load[0] : 0 [18802.798411] .cpu_load[1] : 0 [18802.798413] .cpu_load[2] : 0 [18802.798414] .cpu_load[3] : 0 [18802.798415] .cpu_load[4] : 0 [18802.798416] .yld_count : 170835 [18802.798418] .sched_count : 9179024 [18802.798419] .sched_goidle : 2441686 [18802.798421] .avg_idle : 1000000 [18802.798422] .ttwu_count : 4237599 [18802.798424] .ttwu_local : 2879379 [18802.798425] [18802.798425] cfs_rq[1]:/ [18802.798427] .exec_clock : 5860657.264448 [18802.798429] .MIN_vruntime : 0.000001 [18802.798431] .min_vruntime : 12037518.524875 [18802.798432] .max_vruntime : 0.000001 [18802.798434] .spread : 0.000000 [18802.798435] .spread0 : -25305.628509 [18802.798437] .nr_spread_over : 1736 [18802.798438] .nr_running : 0 [18802.798440] .load : 0 [18802.798441] .load_avg : 0.000000 [18802.798443] .load_period : 0.000000 [18802.798444] .load_contrib : 0 [18802.798446] .load_tg : 0 [18802.798447] [18802.798447] rt_rq[1]: [18802.798449] .rt_nr_running : 0 [18802.798450] .rt_throttled : 0 [18802.798452] .rt_time : 0.000000 [18802.798453] .rt_runtime : 950.000000 [18802.798455] [18802.798455] runnable tasks: [18802.798455] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [18802.798455] ---------------------------------------------------------------------------------------------------------- [18802.798466] -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html