btrfs/130 test causing soft lockup and rcu_sched self-detected stall on CPU

This issue was found by the regression test suite.
This test will hang and get killed with our timeout setting.

It's not a regression as I can see that it will time out on older kernels as well. And it can be seen on different releases (although I haven't check if they all have the same dmesg output)

The stalled process will hinder the test for xfs filesystem. As the partition was occupied and cannot be destroyed.

There is a similar bug 1717443

[ 215.728801] BTRFS: device fsid 97eb2b12-1ed4-4cab-bdb8-de78292ab2d1 devid 1 transid 3 /dev/sdb2
[ 215.808560] BTRFS info (device sdb2): disk space caching is enabled
[ 215.808564] BTRFS: has skinny extents
[ 215.808566] BTRFS: flagging fs with big metadata feature
[ 215.922083] BTRFS: creating UUID tree
[ 216.295453] BTRFS: device fsid 18dbdc70-b4a8-4a1d-bd6e-629a7c44c769 devid 1 transid 3 /dev/sdb2
[ 216.374891] BTRFS info (device sdb2): disk space caching is enabled
[ 216.374894] BTRFS: has skinny extents
[ 216.374896] BTRFS: flagging fs with big metadata feature
[ 216.397006] BTRFS: creating UUID tree
[ 222.588433] perf interrupt took too long (3642 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[ 256.078072] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [btrfs:12947]
[ 256.078507] Modules linked in: ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core hpilo 8250_fintek ipmi_si ipmi_msghandler lpc_ich shpchp acpi_power_meter ioatdma dca mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ses enclosure aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd tg3 ptp pps_core hpsa scsi_transport_sas wmi fjes
[ 256.078570] CPU: 0 PID: 12947 Comm: btrfs Not tainted 4.4.0-96-generic #119-Ubuntu
[ 256.078573] Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 12/27/2015
[ 256.078576] task: ffff880858118e00 ti: ffff880859eec000 task.ti: ffff880859eec000
[ 256.078579] RIP: 0010:[<ffffffffc0289504>] [<ffffffffc0289504>] find_parent_nodes+0x5c4/0x7a0 [btrfs]
[ 256.078618] RSP: 0018:ffff880859eef928 EFLAGS: 00000282
[ 256.078620] RAX: ffff88083fb29c40 RBX: 0000000000000000 RCX: ffff880859eef970
[ 256.078623] RDX: ffff88083fb29c20 RSI: 0000000001c78000 RDI: ffff880854561000
[ 256.078625] RBP: ffff880859eef9f8 R08: 0000000002400040 R09: 0000000180330021
[ 256.078627] R10: ffff88083fc6f5a0 R11: 000000000001a890 R12: ffff880854561000
[ 256.078628] R13: ffff88083fc6f500 R14: 0000000000000000 R15: ffff880859eefa50
[ 256.078632] FS: 00007f52288698c0(0000) GS:ffff88085f200000(0000) knlGS:0000000000000000
[ 256.078634] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 256.078636] CR2: 00007f52277ebe38 CR3: 00000008547cd000 CR4: 00000000003406f0
[ 256.078638] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 256.078640] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 256.078642] Stack:
[ 256.078644] 0000000000000000 ffff88085b318000 0000000000000000 ffff880854561000
[ 256.078648] ffff880859eefa50 0000000000c40000 0000000000000000 ffff8808592091b0
[ 256.078652] 00000000592093f0 ffff8808580e5ce0 0000000000001063 ffff880859eef980
[ 256.078656] Call Trace:
[ 256.078683] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 256.078706] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 256.078726] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 256.078747] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 256.078767] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 256.078786] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 256.078805] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 256.078828] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 256.078833] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 256.078839] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 256.078842] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 256.078846] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 256.078850] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 256.078854] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 256.078859] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 256.078863] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 256.078867] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 256.078872] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 256.078875] Code: a8 01 00 00 75 32 48 8b 85 78 ff ff ff 48 85 c0 0f 84 a2 01 00 00 48 8b 50 10 48 85 d2 75 08 e9 96 01 00 00 48 89 c2 48 8b 42 10 <48> 85 c0 75 f4 49 8b 45 38 48 89 42 10 48 c7 85 78 ff ff ff 00
[ 284.077090] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [btrfs:12947]
[ 284.077530] Modules linked in: ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core hpilo 8250_fintek ipmi_si ipmi_msghandler lpc_ich shpchp acpi_power_meter ioatdma dca mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ses enclosure aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd tg3 ptp pps_core hpsa scsi_transport_sas wmi fjes
[ 284.077589] CPU: 0 PID: 12947 Comm: btrfs Tainted: G L 4.4.0-96-generic #119-Ubuntu
[ 284.077591] Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 12/27/2015
[ 284.077594] task: ffff880858118e00 ti: ffff880859eec000 task.ti: ffff880859eec000
[ 284.077596] RIP: 0010:[<ffffffffc02894fd>] [<ffffffffc02894fd>] find_parent_nodes+0x5bd/0x7a0 [btrfs]
[ 284.077634] RSP: 0018:ffff880859eef928 EFLAGS: 00000286
[ 284.077636] RAX: ffff88083b22d200 RBX: 0000000000000000 RCX: ffff880859eef970
[ 284.077638] RDX: ffff88083b22d1e0 RSI: 0000000001ca8000 RDI: ffff880854561000
[ 284.077640] RBP: ffff880859eef9f8 R08: 0000000002400040 R09: 0000000180330020
[ 284.077641] R10: ffff88083fd1b780 R11: 000000000001a890 R12: ffff880854561000
[ 284.077643] R13: ffff88083fd1b6e0 R14: 0000000000000000 R15: ffff880859eefa50
[ 284.077646] FS: 00007f52288698c0(0000) GS:ffff88085f200000(0000) knlGS:0000000000000000
[ 284.077648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 284.077650] CR2: 00007f52277ebe38 CR3: 00000008547cd000 CR4: 00000000003406f0
[ 284.077652] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 284.077654] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 284.077655] Stack:
[ 284.077657] 0000000000000000 ffff88085b318000 0000000000000000 ffff880854561000
[ 284.077661] ffff880859eefa50 0000000000c40000 0000000000000000 ffff8808592091b0
[ 284.077664] 00000000592093f0 ffff880850c898e0 0000000000001063 ffff880859eef980
[ 284.077668] Call Trace:
[ 284.077693] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 284.077715] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 284.077734] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 284.077753] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 284.077772] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 284.077789] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 284.077807] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 284.077828] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 284.077833] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 284.077839] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 284.077842] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 284.077845] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 284.077849] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 284.077853] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 284.077857] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 284.077861] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 284.077864] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 284.077870] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 284.077872] Code: 00 85 c0 89 c3 0f 88 a8 01 00 00 75 32 48 8b 85 78 ff ff ff 48 85 c0 0f 84 a2 01 00 00 48 8b 50 10 48 85 d2 75 08 e9 96 01 00 00 <48> 89 c2 48 8b 42 10 48 85 c0 75 f4 49 8b 45 38 48 89 42 10 48
[ 291.864815] INFO: rcu_sched self-detected stall on CPU
[ 291.865136] 0-...: (14999 ticks this GP) idle=037/140000000000001/0 softirq=6826/6826 fqs=14986
[ 291.865666] (t=15000 jiffies g=5255 c=5254 q=462)
[ 291.865966] Task dump for CPU 0:
[ 291.865969] btrfs R running task 0 12947 8601 0x00000008
[ 291.865974] ffff880858118e00 7d3693218f1b3cab ffff88085f203da8 ffffffff810aedd9
[ 291.865978] 0000000000000000 ffffffff81e52e00 ffff88085f203dc0 ffffffff810b16b7
[ 291.865981] 0000000000000001 ffff88085f203df0 ffffffff810e527e ffff88085f217b80
[ 291.865984] Call Trace:
[ 291.865987] <IRQ> [<ffffffff810aedd9>] sched_show_task+0xa9/0x110
[ 291.866000] [<ffffffff810b16b7>] dump_cpu_task+0x37/0x40
[ 291.866005] [<ffffffff810e527e>] rcu_dump_cpu_stacks+0x8e/0xe0
[ 291.866009] [<ffffffff810e901a>] rcu_check_callbacks+0x4fa/0x7f0
[ 291.866016] [<ffffffff81140d1c>] ? acct_account_cputime+0x1c/0x20
[ 291.866020] [<ffffffff810b215f>] ? account_system_time+0x7f/0x110
[ 291.866025] [<ffffffff810ff300>] ? tick_sched_handle.isra.14+0x60/0x60
[ 291.866029] [<ffffffff810ef5c9>] update_process_times+0x39/0x60
[ 291.866032] [<ffffffff810ff2c5>] tick_sched_handle.isra.14+0x25/0x60
[ 291.866036] [<ffffffff810ff33d>] tick_sched_timer+0x3d/0x70
[ 291.866039] [<ffffffff810eff02>] __hrtimer_run_queues+0x102/0x290
[ 291.866042] [<ffffffff810f06c8>] hrtimer_interrupt+0xa8/0x1a0
[ 291.866048] [<ffffffff81053078>] local_apic_timer_interrupt+0x38/0x60
[ 291.866053] [<ffffffff81845d1d>] smp_apic_timer_interrupt+0x3d/0x50
[ 291.866059] [<ffffffff81843fe2>] apic_timer_interrupt+0x82/0x90
[ 291.866061] <EOI> [<ffffffffc0289504>] ? find_parent_nodes+0x5c4/0x7a0 [btrfs]
[ 291.866113] [<ffffffffc02894d3>] ? find_parent_nodes+0x593/0x7a0 [btrfs]
[ 291.866134] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 291.866154] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 291.866171] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 291.866190] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 291.866208] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 291.866225] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 291.866243] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 291.866264] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 291.866268] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 291.866273] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 291.866276] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 291.866279] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 291.866283] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 291.866286] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 291.866291] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 291.866295] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 291.866298] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 291.866302] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 316.075965] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [btrfs:12947]
[ 316.076407] Modules linked in: ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core hpilo 8250_fintek ipmi_si ipmi_msghandler lpc_ich shpchp acpi_power_meter ioatdma dca mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ses enclosure aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd tg3 ptp pps_core hpsa scsi_transport_sas wmi fjes
[ 316.076465] CPU: 0 PID: 12947 Comm: btrfs Tainted: G L 4.4.0-96-generic #119-Ubuntu
[ 316.076468] Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 12/27/2015
[ 316.076471] task: ffff880858118e00 ti: ffff880859eec000 task.ti: ffff880859eec000
[ 316.076473] RIP: 0010:[<ffffffffc02894fd>] [<ffffffffc02894fd>] find_parent_nodes+0x5bd/0x7a0 [btrfs]
[ 316.076510] RSP: 0018:ffff880859eef928 EFLAGS: 00000286
[ 316.076512] RAX: ffff880022d2a0a0 RBX: 0000000000000000 RCX: ffff880859eef970
[ 316.076514] RDX: ffff880022d2a080 RSI: 0000000001c78000 RDI: ffff880854561000
[ 316.076515] RBP: ffff880859eef9f8 R08: 0000000002400040 R09: 0000000180330014
[ 316.076517] R10: ffff88083fd9f9b0 R11: 000000000001a890 R12: ffff880854561000
[ 316.076519] R13: ffff88083fd9f910 R14: 0000000000000000 R15: ffff880859eefa50
[ 316.076522] FS: 00007f52288698c0(0000) GS:ffff88085f200000(0000) knlGS:0000000000000000
[ 316.076524] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 316.076526] CR2: 00007f52277ebe38 CR3: 00000008547cd000 CR4: 00000000003406f0
[ 316.076528] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 316.076530] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 316.076531] Stack:
[ 316.076533] 0000000000000000 ffff88085b318000 0000000000000000 ffff880854561000
[ 316.076537] ffff880859eefa50 0000000000c40000 0000000000000000 ffff8808592091b0
[ 316.076540] 00000000592093f0 ffff8808580e5ce0 0000000000001063 ffff880859eef980
[ 316.076544] Call Trace:
[ 316.076568] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 316.076589] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 316.076609] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 316.076628] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 316.076646] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 316.076663] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 316.076681] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 316.076702] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 316.076707] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 316.076713] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 316.076716] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 316.076719] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 316.076723] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 316.076727] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 316.076731] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 316.076735] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 316.076738] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 316.076744] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 316.076746] Code: 00 85 c0 89 c3 0f 88 a8 01 00 00 75 32 48 8b 85 78 ff ff ff 48 85 c0 0f 84 a2 01 00 00 48 8b 50 10 48 85 d2 75 08 e9 96 01 00 00 <48> 89 c2 48 8b 42 10 48 85 c0 75 f4 49 8b 45 38 48 89 42 10 48
[ 319.350180] perf interrupt took too long (5787 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
[ 332.110571] cfg80211: World regulatory domain updated:
[ 332.110576] cfg80211: DFS Master region: unset
[ 332.110578] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 332.110581] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 332.110584] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 332.110586] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 332.110589] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 332.110592] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 332.110594] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 332.110596] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 332.110599] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 364.122273] NMI watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [btrfs:12947]
[ 364.122716] Modules linked in: cfg80211 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core hpilo 8250_fintek ipmi_si ipmi_msghandler lpc_ich shpchp acpi_power_meter ioatdma dca mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ses enclosure aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd tg3 ptp pps_core hpsa scsi_transport_sas wmi fjes
[ 364.122777] CPU: 12 PID: 12947 Comm: btrfs Tainted: G L 4.4.0-96-generic #119-Ubuntu
[ 364.122779] Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 12/27/2015
[ 364.122782] task: ffff880858118e00 ti: ffff880859eec000 task.ti: ffff880859eec000
[ 364.122785] RIP: 0010:[<ffffffffc02894fd>] [<ffffffffc02894fd>] find_parent_nodes+0x5bd/0x7a0 [btrfs]
[ 364.122822] RSP: 0018:ffff880859eef928 EFLAGS: 00000282
[ 364.122824] RAX: ffff8800224c3c80 RBX: 0000000000000000 RCX: ffff880859eef970
[ 364.122826] RDX: ffff8800224c3c60 RSI: 0000000001c9c000 RDI: ffff8808500aff00
[ 364.122828] RBP: ffff880859eef9f8 R08: 0000000002400040 R09: 0000000180330012
[ 364.122830] R10: ffff88083414eaa0 R11: 000000000001a890 R12: ffff8808500aff00
[ 364.122831] R13: ffff88083414ea00 R14: 0000000000000000 R15: ffff880859eefa50
[ 364.122834] FS: 00007f52288698c0(0000) GS:ffff88085f500000(0000) knlGS:0000000000000000
[ 364.122836] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 364.122838] CR2: 00007fdd1abdc0e0 CR3: 00000008547cd000 CR4: 00000000003406e0
[ 364.122840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 364.122842] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 364.122844] Stack:
[ 364.122845] 0000000000000000 ffff88085b318000 0000000000000000 ffff8808500aff00
[ 364.122849] ffff880859eefa50 0000000000c40000 0000000000000000 ffff88085928ed80
[ 364.122853] 000000005928ecf0 ffff880857ad5600 0000000000001063 ffff880859eef980
[ 364.122856] Call Trace:
[ 364.122881] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 364.122902] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 364.122920] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 364.122939] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 364.122957] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 364.122975] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 364.122992] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 364.123013] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 364.123019] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 364.123025] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 364.123028] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 364.123031] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 364.123036] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 364.123040] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 364.123045] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 364.123049] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 364.123052] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 364.123058] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 364.123060] Code: 00 85 c0 89 c3 0f 88 a8 01 00 00 75 32 48 8b 85 78 ff ff ff 48 85 c0 0f 84 a2 01 00 00 48 8b 50 10 48 85 d2 75 08 e9 96 01 00 00 <48> 89 c2 48 8b 42 10 48 85 c0 75 f4 49 8b 45 38 48 89 42 10 48
[ 392.121285] NMI watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [btrfs:12947]
[ 392.121744] Modules linked in: cfg80211 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core hpilo 8250_fintek ipmi_si ipmi_msghandler lpc_ich shpchp acpi_power_meter ioatdma dca mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ses enclosure aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd tg3 ptp pps_core hpsa scsi_transport_sas wmi fjes
[ 392.121802] CPU: 12 PID: 12947 Comm: btrfs Tainted: G L 4.4.0-96-generic #119-Ubuntu
[ 392.121805] Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 12/27/2015
[ 392.121808] task: ffff880858118e00 ti: ffff880859eec000 task.ti: ffff880859eec000
[ 392.121810] RIP: 0010:[<ffffffffc0289504>] [<ffffffffc0289504>] find_parent_nodes+0x5c4/0x7a0 [btrfs]
[ 392.121846] RSP: 0018:ffff880859eef928 EFLAGS: 00000286
[ 392.121848] RAX: ffff880837b461e0 RBX: 0000000000000000 RCX: ffff880859eef970
[ 392.121850] RDX: ffff880837b461c0 RSI: 0000000001c9c000 RDI: ffff8808500aff00
[ 392.121852] RBP: ffff880859eef9f8 R08: 0000000002400040 R09: 000000018033000f
[ 392.121853] R10: ffff880834185dc0 R11: 000000000001a890 R12: ffff8808500aff00
[ 392.121855] R13: ffff880834185d20 R14: 0000000000000000 R15: ffff880859eefa50
[ 392.121858] FS: 00007f52288698c0(0000) GS:ffff88085f500000(0000) knlGS:0000000000000000
[ 392.121860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 392.121862] CR2: 00007fdd1abdc0e0 CR3: 00000008547cd000 CR4: 00000000003406e0
[ 392.121864] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 392.121866] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 392.121867] Stack:
[ 392.121869] 0000000000000000 ffff88085b318000 0000000000000000 ffff8808500aff00
[ 392.121873] ffff880859eefa50 0000000000c40000 0000000000000000 ffff88085928ed80
[ 392.121876] 000000005928ecf0 ffff880857ad5600 0000000000001063 ffff880859eef980
[ 392.121880] Call Trace:
[ 392.121905] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 392.121925] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 392.121944] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 392.121963] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 392.121981] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 392.121999] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 392.122017] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 392.122039] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 392.122044] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 392.122050] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 392.122053] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 392.122056] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 392.122060] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 392.122064] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 392.122069] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 392.122073] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 392.122076] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 392.122081] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 392.122083] Code: a8 01 00 00 75 32 48 8b 85 78 ff ff ff 48 85 c0 0f 84 a2 01 00 00 48 8b 50 10 48 85 d2 75 08 e9 96 01 00 00 48 89 c2 48 8b 42 10 <48> 85 c0 75 f4 49 8b 45 38 48 89 42 10 48 c7 85 78 ff ff ff 00
[ 399.409025] INFO: rcu_sched self-detected stall on CPU
[ 399.410066] 12-...: (14999 ticks this GP) idle=fe5/140000000000001/0 softirq=4506/4506 fqs=14998
[ 399.410907] (t=15000 jiffies g=5362 c=5361 q=333)
[ 399.411226] Task dump for CPU 12:
[ 399.411229] btrfs R running task 0 12947 8601 0x00000008
[ 399.411233] ffff880858118e00 7d3693218f1b3cab ffff88085f503da8 ffffffff810aedd9
[ 399.411237] 000000000000000c ffffffff81e52e00 ffff88085f503dc0 ffffffff810b16b7
[ 399.411240] 000000000000000d ffff88085f503df0 ffffffff810e527e ffff88085f517b80
[ 399.411244] Call Trace:
[ 399.411246] <IRQ> [<ffffffff810aedd9>] sched_show_task+0xa9/0x110
[ 399.411260] [<ffffffff810b16b7>] dump_cpu_task+0x37/0x40
[ 399.411265] [<ffffffff810e527e>] rcu_dump_cpu_stacks+0x8e/0xe0
[ 399.411268] [<ffffffff810e901a>] rcu_check_callbacks+0x4fa/0x7f0
[ 399.411275] [<ffffffff81140d1c>] ? acct_account_cputime+0x1c/0x20
[ 399.411280] [<ffffffff810b215f>] ? account_system_time+0x7f/0x110
[ 399.411285] [<ffffffff810ff300>] ? tick_sched_handle.isra.14+0x60/0x60
[ 399.411289] [<ffffffff810ef5c9>] update_process_times+0x39/0x60
[ 399.411292] [<ffffffff810ff2c5>] tick_sched_handle.isra.14+0x25/0x60
[ 399.411296] [<ffffffff810ff33d>] tick_sched_timer+0x3d/0x70
[ 399.411300] [<ffffffff810eff02>] __hrtimer_run_queues+0x102/0x290
[ 399.411303] [<ffffffff810f06c8>] hrtimer_interrupt+0xa8/0x1a0
[ 399.411308] [<ffffffff81053078>] local_apic_timer_interrupt+0x38/0x60
[ 399.411314] [<ffffffff81845d1d>] smp_apic_timer_interrupt+0x3d/0x50
[ 399.411319] [<ffffffff81843fe2>] apic_timer_interrupt+0x82/0x90
[ 399.411321] <EOI> [<ffffffffc0289500>] ? find_parent_nodes+0x5c0/0x7a0 [btrfs]
[ 399.411377] [<ffffffffc02894d3>] ? find_parent_nodes+0x593/0x7a0 [btrfs]
[ 399.411397] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 399.411417] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 399.411435] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 399.411454] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 399.411472] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 399.411489] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 399.411507] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 399.411528] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 399.411531] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 399.411536] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 399.411539] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 399.411542] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 399.411545] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 399.411549] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 399.411554] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 399.411558] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 399.411561] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 399.411566] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 424.120155] NMI watchdog: BUG: soft lockup - CPU#12 stuck for 22s! [btrfs:12947]
[ 424.120588] Modules linked in: cfg80211 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core hpilo 8250_fintek ipmi_si ipmi_msghandler lpc_ich shpchp acpi_power_meter ioatdma dca mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ses enclosure aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd tg3 ptp pps_core hpsa scsi_transport_sas wmi fjes
[ 424.120648] CPU: 12 PID: 12947 Comm: btrfs Tainted: G L 4.4.0-96-generic #119-Ubuntu
[ 424.120650] Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 12/27/2015
[ 424.120653] task: ffff880858118e00 ti: ffff880859eec000 task.ti: ffff880859eec000
[ 424.120655] RIP: 0010:[<ffffffffc0289504>] [<ffffffffc0289504>] find_parent_nodes+0x5c4/0x7a0 [btrfs]
[ 424.120692] RSP: 0018:ffff880859eef928 EFLAGS: 00000282
[ 424.120694] RAX: ffff880835ae5ea0 RBX: 0000000000000000 RCX: ffff880859eef970
[ 424.120696] RDX: ffff880835ae5e80 RSI: 0000000001cac000 RDI: ffff8808500aff00
[ 424.120698] RBP: ffff880859eef9f8 R08: 0000000002400040 R09: 0000000180330031
[ 424.120700] R10: ffff880078187410 R11: 000000000001a890 R12: ffff8808500aff00
[ 424.120702] R13: ffff880078187370 R14: 0000000000000000 R15: ffff880859eefa50
[ 424.120704] FS: 00007f52288698c0(0000) GS:ffff88085f500000(0000) knlGS:0000000000000000
[ 424.120706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 424.120708] CR2: 00007fdd1abdc0e0 CR3: 00000008547cd000 CR4: 00000000003406e0
[ 424.120710] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 424.120712] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 424.120714] Stack:
[ 424.120715] 0000000000000000 ffff88085b318000 0000000000000000 ffff8808500aff00
[ 424.120719] ffff880859eefa50 0000000000c40000 0000000000000000 ffff88085928ed80
[ 424.120723] 000000005928ecf0 ffff8808555f7400 0000000000001063 ffff880859eef980
[ 424.120726] Call Trace:
[ 424.120750] [<ffffffffc02911d0>] ? dir_changed.isra.15+0xa0/0xa0 [btrfs]
[ 424.120771] [<ffffffffc028a3c9>] iterate_extent_inodes+0x109/0x350 [btrfs]
[ 424.120790] [<ffffffffc028a018>] ? extent_from_logical+0x198/0x230 [btrfs]
[ 424.120809] [<ffffffffc0295aa1>] process_extent+0x771/0x1000 [btrfs]
[ 424.120827] [<ffffffffc0292960>] ? __record_deleted_ref+0x30/0x30 [btrfs]
[ 424.120845] [<ffffffffc0297021>] changed_cb+0x231/0xad0 [btrfs]
[ 424.120862] [<ffffffffc02989f4>] btrfs_ioctl_send+0x1134/0x1210 [btrfs]
[ 424.120883] [<ffffffffc025f083>] btrfs_ioctl+0x2a3/0x28b0 [btrfs]
[ 424.120889] [<ffffffff810b4e67>] ? task_move_group_fair+0x57/0x60
[ 424.120895] [<ffffffff810b2d6c>] ? __enqueue_entity+0x6c/0x70
[ 424.120898] [<ffffffff810b8937>] ? enqueue_entity+0x3a7/0xd10
[ 424.120901] [<ffffffff810b934a>] ? enqueue_task_fair+0xaa/0x8b0
[ 424.120905] [<ffffffff81037ef9>] ? sched_clock+0x9/0x10
[ 424.120909] [<ffffffff810b1d9f>] ? sched_clock_cpu+0x8f/0xa0
[ 424.120914] [<ffffffff81223faf>] do_vfs_ioctl+0x29f/0x490
[ 424.120918] [<ffffffff8108061c>] ? _do_fork+0xec/0x360
[ 424.120921] [<ffffffff81224219>] SyS_ioctl+0x79/0x90
[ 424.120927] [<ffffffff81843272>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 424.120928] Code: a8 01 00 00 75 32 48 8b 85 78 ff ff ff 48 85 c0 0f 84 a2 01 00 00 48 8b 50 10 48 85 d2 75 08 e9 96 01 00 00 48 89 c2 48 8b 42 10 <48> 85 c0 75 f4 49 8b 45 38 48 89 42 10 48 c7 85 78 ff ff ff 00

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-96-generic 4.4.0-96.119
ProcVersionSignature: User Name 4.4.0-96.119-generic 4.4.83
Uname: Linux 4.4.0-96-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Sep 22 11:37 seq
 crw-rw---- 1 root audio 116, 33 Sep 22 11:37 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Fri Sep 22 11:43:07 2017
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: HP ProLiant DL360 Gen9
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-96-generic root=UUID=051b34ce-dfed-4e36-aa78-851c5a284ee4 ro
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-96-generic N/A
 linux-backports-modules-4.4.0-96-generic N/A
 linux-firmware 1.157.12
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/27/2015
dmi.bios.vendor: HP
dmi.bios.version: P89
dmi.board.name: ProLiant DL360 Gen9
dmi.board.vendor: HP
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias: dmi:bvnHP:bvrP89:bd12/27/2015:svnHP:pnProLiantDL360Gen9:pvr:rvnHP:rnProLiantDL360Gen9:rvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL360 Gen9
dmi.sys.vendor: HP