Re: lock, Workqueue: bcache bch_data_insert_keys [bcache]
From: Eric Wheeler <hidden>
Date: 2017-07-07 17:16:05
On Fri, 7 Jul 2017, Konstantin Shalygin wrote:
Hello. I caught lock (only hard reset helped to reboot kernel), when I started "every week rsync backup" of my laptop '/home'. After reboot I started the same task and this don't get any issues.
Hi Konstantin, Try this patch: https://www.spinics.net/lists/stable/msg178933.html -- Eric Wheeler
I run bcache over md raid5. [k0ste@home ~]$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 5.5T 0 disk └─md0 9:0 0 15T 0 raid5 └─bcache0 254:0 0 15T 0 disk /srv/raid sdb 8:16 0 5.5T 0 disk └─md0 9:0 0 15T 0 raid5 └─bcache0 254:0 0 15T 0 disk /srv/raid sdc 8:32 0 5.5T 0 disk └─md0 9:0 0 15T 0 raid5 └─bcache0 254:0 0 15T 0 disk /srv/raid sdd 8:48 1 14.3G 0 disk └─sdd1 8:49 1 14.3G 0 part /boot sde 8:64 0 5.5T 0 disk └─md0 9:0 0 15T 0 raid5 └─bcache0 254:0 0 15T 0 disk /srv/raid sdf 8:80 0 119.2G 0 disk └─sdf1 8:81 0 119.2G 0 part / nvme0n1 259:0 0 119.2G 0 disk └─bcache0 254:0 0 15T 0 disk /srv/raid dmesg:quoted
Jul 07 19:59:59 home kernel: INFO: task bcache:86 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: bcache D 0 86 2 0x00000000 Jul 07 19:59:59 home kernel: Workqueue: bcache bch_data_insert_keys [bcache] Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: closure_sync+0x23/0x90 [bcache] Jul 07 19:59:59 home kernel: bch_journal+0x115/0x3a0 [bcache] Jul 07 19:59:59 home kernel: bch_data_insert_keys+0x95/0x130 [bcache] Jul 07 19:59:59 home kernel: process_one_work+0x1e0/0x490 Jul 07 19:59:59 home kernel: rescuer_thread+0x20c/0x390 Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? cancel_delayed_work_sync+0x20/0x20 Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 19:59:59 home kernel: INFO: task xfsaild/bcache0:5174 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: xfsaild/bcache0 D 0 5174 2 0x00000000 Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: schedule_timeout+0x224/0x3c0 Jul 07 19:59:59 home kernel: ? check_preempt_curr+0x27/0x80 Jul 07 19:59:59 home kernel: ? ttwu_do_wakeup.isra.16+0x1e/0x170 Jul 07 19:59:59 home kernel: wait_for_common+0xb9/0x180 Jul 07 19:59:59 home kernel: ? wait_for_common+0xb9/0x180 Jul 07 19:59:59 home kernel: ? wake_up_q+0x80/0x80 Jul 07 19:59:59 home kernel: wait_for_completion+0x1d/0x20 Jul 07 19:59:59 home kernel: flush_work+0x13b/0x1c0 Jul 07 19:59:59 home kernel: ? flush_workqueue_prep_pwqs+0x190/0x190 Jul 07 19:59:59 home kernel: xlog_cil_force_lsn+0x7c/0x200 [xfs] Jul 07 19:59:59 home kernel: ? try_to_del_timer_sync+0x53/0x80 Jul 07 19:59:59 home kernel: _xfs_log_force+0x85/0x290 [xfs] Jul 07 19:59:59 home kernel: ? del_timer_sync+0x50/0x50 Jul 07 19:59:59 home kernel: ? xfsaild+0x16a/0x7c0 [xfs] Jul 07 19:59:59 home kernel: xfs_log_force+0x2c/0x90 [xfs] Jul 07 19:59:59 home kernel: xfsaild+0x16a/0x7c0 [xfs] Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? xfs_trans_ail_cursor_first+0x90/0x90 [xfs] Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 19:59:59 home kernel: INFO: task kworker/0:1:84671 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: kworker/0:1 D 0 84671 2 0x00000000 Jul 07 19:59:59 home kernel: Workqueue: bcache bch_data_insert_keys [bcache] Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: closure_sync+0x23/0x90 [bcache] Jul 07 19:59:59 home kernel: bch_journal+0x115/0x3a0 [bcache] Jul 07 19:59:59 home kernel: bch_data_insert_keys+0x95/0x130 [bcache] Jul 07 19:59:59 home kernel: process_one_work+0x1e0/0x490 Jul 07 19:59:59 home kernel: worker_thread+0x48/0x4e0 Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? process_one_work+0x490/0x490 Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 19:59:59 home kernel: INFO: task kworker/0:3:84673 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: kworker/0:3 D 0 84673 2 0x00000000 Jul 07 19:59:59 home kernel: Workqueue: bcache bch_data_insert_keys [bcache] Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: closure_sync+0x23/0x90 [bcache] Jul 07 19:59:59 home kernel: bch_journal+0x115/0x3a0 [bcache] Jul 07 19:59:59 home kernel: bch_data_insert_keys+0x95/0x130 [bcache] Jul 07 19:59:59 home kernel: process_one_work+0x1e0/0x490 Jul 07 19:59:59 home kernel: worker_thread+0x48/0x4e0 Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? process_one_work+0x490/0x490 Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 19:59:59 home kernel: INFO: task kworker/2:2:87164 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: kworker/2:2 D 0 87164 2 0x00000000 Jul 07 19:59:59 home kernel: Workqueue: xfs-sync/bcache0 xfs_log_worker [xfs] Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: ? find_next_bit+0xb/0x10 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: schedule_timeout+0x224/0x3c0 Jul 07 19:59:59 home kernel: wait_for_common+0xb9/0x180 Jul 07 19:59:59 home kernel: ? wait_for_common+0xb9/0x180 Jul 07 19:59:59 home kernel: ? wake_up_q+0x80/0x80 Jul 07 19:59:59 home kernel: wait_for_completion+0x1d/0x20 Jul 07 19:59:59 home kernel: flush_work+0x13b/0x1c0 Jul 07 19:59:59 home kernel: ? flush_workqueue_prep_pwqs+0x190/0x190 Jul 07 19:59:59 home kernel: xlog_cil_force_lsn+0x7c/0x200 [xfs] Jul 07 19:59:59 home kernel: ? find_next_bit+0xb/0x10 Jul 07 19:59:59 home kernel: _xfs_log_force+0x85/0x290 [xfs] Jul 07 19:59:59 home kernel: ? __switch_to+0x270/0x490 Jul 07 19:59:59 home kernel: ? xfs_log_worker+0x34/0x100 [xfs] Jul 07 19:59:59 home kernel: xfs_log_force+0x2c/0x90 [xfs] Jul 07 19:59:59 home kernel: xfs_log_worker+0x34/0x100 [xfs] Jul 07 19:59:59 home kernel: process_one_work+0x1e0/0x490 Jul 07 19:59:59 home kernel: worker_thread+0x48/0x4e0 Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? process_one_work+0x490/0x490 Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 19:59:59 home kernel: INFO: task kworker/1:28:89441 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: kworker/1:28 D 0 89441 2 0x00000000 Jul 07 19:59:59 home kernel: Workqueue: xfs-cil/bcache0 xlog_cil_push_work [xfs] Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: xlog_state_get_iclog_space+0xf8/0x2d0 [xfs] Jul 07 19:59:59 home kernel: ? wake_up_q+0x80/0x80 Jul 07 19:59:59 home kernel: xlog_write+0x166/0x640 [xfs] Jul 07 19:59:59 home kernel: xlog_cil_push+0x2a1/0x490 [xfs] Jul 07 19:59:59 home kernel: ? put_prev_entity+0x40/0xc10 Jul 07 19:59:59 home kernel: ? __switch_to+0x270/0x490 Jul 07 19:59:59 home kernel: xlog_cil_push_work+0x15/0x20 [xfs] Jul 07 19:59:59 home kernel: process_one_work+0x1e0/0x490 Jul 07 19:59:59 home kernel: worker_thread+0x225/0x4e0 Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? process_one_work+0x490/0x490 Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 19:59:59 home kernel: INFO: task kworker/0:0:92924 blocked for more than 120 seconds. Jul 07 19:59:59 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 19:59:59 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 19:59:59 home kernel: kworker/0:0 D 0 92924 2 0x00000000 Jul 07 19:59:59 home kernel: Workqueue: bcache bch_data_insert_keys [bcache] Jul 07 19:59:59 home kernel: Call Trace: Jul 07 19:59:59 home kernel: __schedule+0x22e/0x8e0 Jul 07 19:59:59 home kernel: schedule+0x3d/0x90 Jul 07 19:59:59 home kernel: closure_sync+0x23/0x90 [bcache] Jul 07 19:59:59 home kernel: bch_journal+0x115/0x3a0 [bcache] Jul 07 19:59:59 home kernel: bch_data_insert_keys+0x95/0x130 [bcache] Jul 07 19:59:59 home kernel: process_one_work+0x1e0/0x490 Jul 07 19:59:59 home kernel: worker_thread+0x48/0x4e0 Jul 07 19:59:59 home kernel: kthread+0x125/0x140 Jul 07 19:59:59 home kernel: ? process_one_work+0x490/0x490 Jul 07 19:59:59 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 19:59:59 home kernel: ret_from_fork+0x2c/0x40 Jul 07 20:02:02 home kernel: INFO: task bcache:86 blocked for more than 120 seconds. Jul 07 20:02:02 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 20:02:02 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 20:02:02 home kernel: bcache D 0 86 2 0x00000000 Jul 07 20:02:02 home kernel: Workqueue: bcache bch_data_insert_keys [bcache] Jul 07 20:02:02 home kernel: Call Trace: Jul 07 20:02:02 home kernel: __schedule+0x22e/0x8e0 Jul 07 20:02:02 home kernel: schedule+0x3d/0x90 Jul 07 20:02:02 home kernel: closure_sync+0x23/0x90 [bcache] Jul 07 20:02:02 home kernel: bch_journal+0x115/0x3a0 [bcache] Jul 07 20:02:02 home kernel: bch_data_insert_keys+0x95/0x130 [bcache] Jul 07 20:02:02 home kernel: process_one_work+0x1e0/0x490 Jul 07 20:02:02 home kernel: rescuer_thread+0x20c/0x390 Jul 07 20:02:02 home kernel: kthread+0x125/0x140 Jul 07 20:02:02 home kernel: ? cancel_delayed_work_sync+0x20/0x20 Jul 07 20:02:02 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 20:02:02 home kernel: ret_from_fork+0x2c/0x40 Jul 07 20:02:02 home kernel: INFO: task systemd-logind:412 blocked for more than 120 seconds. Jul 07 20:02:02 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 20:02:02 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 20:02:02 home kernel: systemd-logind D 0 412 1 0x00000100 Jul 07 20:02:02 home kernel: Call Trace: Jul 07 20:02:02 home kernel: __schedule+0x22e/0x8e0 Jul 07 20:02:02 home kernel: schedule+0x3d/0x90 Jul 07 20:02:02 home kernel: rwsem_down_write_failed+0x175/0x250 Jul 07 20:02:02 home kernel: ? ida_get_new_above+0x1a7/0x320 Jul 07 20:02:02 home kernel: call_rwsem_down_write_failed+0x17/0x30 Jul 07 20:02:02 home kernel: ? call_rwsem_down_write_failed+0x17/0x30 Jul 07 20:02:02 home kernel: down_write+0x24/0x40 Jul 07 20:02:02 home kernel: register_shrinker+0x3e/0x90 Jul 07 20:02:02 home kernel: sget_userns+0x409/0x470 Jul 07 20:02:02 home kernel: ? get_anon_bdev+0x110/0x110 Jul 07 20:02:02 home kernel: ? shmem_remount_fs+0x1c0/0x1c0 Jul 07 20:02:02 home kernel: sget+0x5e/0x80 Jul 07 20:02:02 home kernel: ? get_anon_bdev+0x110/0x110 Jul 07 20:02:02 home kernel: mount_nodev+0x30/0xa0 Jul 07 20:02:02 home kernel: shmem_mount+0x18/0x20 Jul 07 20:02:02 home kernel: mount_fs+0x32/0x160 Jul 07 20:02:02 home kernel: vfs_kern_mount.part.7+0x5d/0x110 Jul 07 20:02:02 home kernel: do_mount+0x528/0xc60 Jul 07 20:02:02 home kernel: ? _copy_from_user+0x4b/0x80 Jul 07 20:02:02 home kernel: SyS_mount+0x5a/0xe0 Jul 07 20:02:02 home kernel: do_syscall_64+0x54/0xc0 Jul 07 20:02:02 home kernel: entry_SYSCALL64_slow_path+0x25/0x25 Jul 07 20:02:02 home kernel: RIP: 0033:0x7f35e30b98da Jul 07 20:02:02 home kernel: RSP: 002b:00007ffc4ed06fb8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 Jul 07 20:02:02 home kernel: RAX: ffffffffffffffda RBX: 0000557b6f476480 RCX: 00007f35e30b98da Jul 07 20:02:02 home kernel: RDX: 0000557b6d4f1402 RSI: 0000557b6f478b80 RDI: 0000557b6d4f1402 Jul 07 20:02:02 home kernel: RBP: 0000000000000000 R08: 0000557b6f478d80 R09: 0000000000000040 Jul 07 20:02:02 home kernel: R10: 0000000000000006 R11: 0000000000000202 R12: 00007ffc4ed07060 Jul 07 20:02:02 home kernel: R13: 0000557b6d4f17ff R14: 0000000000000000 R15: 0000000000000000 Jul 07 20:02:02 home kernel: INFO: task xfsaild/bcache0:5174 blocked for more than 120 seconds. Jul 07 20:02:02 home kernel: Tainted: G O 4.11.7-1-ARCH #1 Jul 07 20:02:02 home kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jul 07 20:02:02 home kernel: xfsaild/bcache0 D 0 5174 2 0x00000000 Jul 07 20:02:02 home kernel: Call Trace: Jul 07 20:02:02 home kernel: __schedule+0x22e/0x8e0 Jul 07 20:02:02 home kernel: schedule+0x3d/0x90 Jul 07 20:02:02 home kernel: schedule_timeout+0x224/0x3c0 Jul 07 20:02:02 home kernel: ? check_preempt_curr+0x27/0x80 Jul 07 20:02:02 home kernel: ? ttwu_do_wakeup.isra.16+0x1e/0x170 Jul 07 20:02:02 home kernel: wait_for_common+0xb9/0x180 Jul 07 20:02:02 home kernel: ? wait_for_common+0xb9/0x180 Jul 07 20:02:02 home kernel: ? wake_up_q+0x80/0x80 Jul 07 20:02:02 home kernel: wait_for_completion+0x1d/0x20 Jul 07 20:02:02 home kernel: flush_work+0x13b/0x1c0 Jul 07 20:02:02 home kernel: ? flush_workqueue_prep_pwqs+0x190/0x190 Jul 07 20:02:02 home kernel: xlog_cil_force_lsn+0x7c/0x200 [xfs] Jul 07 20:02:02 home kernel: ? try_to_del_timer_sync+0x53/0x80 Jul 07 20:02:02 home kernel: _xfs_log_force+0x85/0x290 [xfs] Jul 07 20:02:02 home kernel: ? del_timer_sync+0x50/0x50 Jul 07 20:02:02 home kernel: ? xfsaild+0x16a/0x7c0 [xfs] Jul 07 20:02:02 home kernel: xfs_log_force+0x2c/0x90 [xfs] Jul 07 20:02:02 home kernel: xfsaild+0x16a/0x7c0 [xfs] Jul 07 20:02:02 home kernel: kthread+0x125/0x140 Jul 07 20:02:02 home kernel: ? kthread+0x125/0x140 Jul 07 20:02:02 home kernel: ? xfs_trans_ail_cursor_first+0x90/0x90 [xfs] Jul 07 20:02:02 home kernel: ? kthread_create_on_node+0x70/0x70 Jul 07 20:02:02 home kernel: ret_from_fork+0x2c/0x40This is bcache issue? -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html