F2FS-fs (loop4): Unable to read 2th superblock F2FS-fs (loop2): Unable to read 1th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop0): Unable to read 1th superblock F2FS-fs (loop0): Unable to read 2th superblock INFO: task init:3446 blocked for more than 140 seconds. Not tainted 4.9.186+ #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29304 3446 1 0x00000000 0000000000000087 ffff8801d2c35f00 ffff8801d266dd80 ffff8801db621000 ffff8801d3154740 ffff8801db621018 ffff8801d27a7758 ffffffff8281856e ffff8801d2c367c8 ffff8801d2c367a0 00ff8801d2c367d0 ffff8801db6218f0 Call Trace: [<00000000c26174b6>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<00000000d3f6b7dd>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579 [<000000008ad6ab31>] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [<000000008ad6ab31>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621 [<0000000083bcd7c3>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] [<0000000083bcd7c3>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 [<00000000c44eb17a>] chrdev_open+0x230/0x630 fs/char_dev.c:398 [<000000008fc9d389>] do_dentry_open+0x422/0xd20 fs/open.c:772 [<00000000a7931bc8>] vfs_open+0x105/0x230 fs/open.c:885 [<00000000e8d99db1>] do_last fs/namei.c:3457 [inline] [<00000000e8d99db1>] path_openat+0xbf5/0x2f60 fs/namei.c:3581 [<00000000e4e92437>] do_filp_open+0x1a1/0x280 fs/namei.c:3615 [<00000000f946932f>] do_sys_open+0x2f0/0x610 fs/open.c:1078 [<000000002f51d491>] SYSC_open fs/open.c:1096 [inline] [<000000002f51d491>] SyS_open+0x2d/0x40 fs/open.c:1091 [<00000000064fe0bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000bc13cb9d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Showing all locks held in the system: 2 locks held by khungtaskd/24: #0: (rcu_read_lock){......}, at: [<00000000fb8f221d>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline] #0: (rcu_read_lock){......}, at: [<00000000fb8f221d>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263 #1: (tasklist_lock){.+.+..}, at: [<00000000539cd4fb>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336 1 lock held by rsyslogd/1893: #0: (&f->f_pos_lock){+.+.+.}, at: [<00000000abaece3e>] __fdget_pos+0xa8/0xd0 fs/file.c:782 2 locks held by getty/2021: #0: (&tty->ldisc_sem){++++++}, at: [<000000000b14624c>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+...}, at: [<000000005c5e3327>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 1 lock held by init/3446: #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/3460: #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/3462: #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/3463: #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/10324: #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<0000000083bcd7c3>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.186+ #14 ffff8801d98efcc8 ffffffff81b660c1 0000000000000000 0000000000000000 0000000000000000 ffffffff81099a01 dffffc0000000000 ffff8801d98efd00 ffffffff81b7135c 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<000000000b6dde29>] __dump_stack lib/dump_stack.c:15 [inline] [<000000000b6dde29>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000f4b61f6a>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<000000003a4b5aca>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<0000000060a83829>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<00000000d837a435>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<00000000d837a435>] check_hung_task kernel/hung_task.c:126 [inline] [<00000000d837a435>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline] [<00000000d837a435>] watchdog+0x670/0xaf0 kernel/hung_task.c:263 [<000000002ef63c73>] kthread+0x278/0x310 kernel/kthread.c:211 [<00000000d1fb3c0f>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 20359 Comm: blkid Not tainted 4.9.186+ #14 task: 00000000c287a402 task.stack: 000000008cad1ef6 RIP: 0010:[] c [<00000000117204da>] get_current arch/x86/include/asm/current.h:14 [inline] RIP: 0010:[] c [<00000000117204da>] __sanitizer_cov_trace_pc+0x8/0x50 kernel/kcov.c:99 RSP: 0018:ffff8801c9a97be8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff8801cebdba50 RCX: ffff8801cebdb890 RDX: 1ffff10039d7b754 RSI: ffffffff814b28fa RDI: ffff8801cebdbaa0 RBP: ffff8801c9a97be8 R08: 0000000000000001 R09: 0000000000007385 R10: ffff8801d3cda098 R11: 0000000000000001 R12: 00007fc9ba054000 R13: ffff8801cebdba50 R14: dffffc0000000000 R15: ffff8801cebdb890 FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff9d318ffc CR3: 00000001c70ff000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801c9a97c10c ffffffff814b28fac 0000000000000000c ffff8801cebdba70c ffff8801cebdba50c ffff8801c9a97c40c ffffffff814b3546c ffff8801c58eb700c ffff8801c58eb708c ffff8801cebdb8a0c ffff8801c7a37110c ffff8801c9a97c78c Call Trace: [<000000008c045ae7>] vma_compute_subtree_gap+0x7a/0x1f0 mm/mmap.c:265 [<00000000b0194291>] validate_mm_rb+0x76/0xb0 mm/mmap.c:343 [<000000005650d4c6>] vma_rb_insert mm/mmap.c:414 [inline] [<000000005650d4c6>] __vma_link_rb+0x133/0x1f0 mm/mmap.c:570 [<00000000bfe8137f>] __vma_link mm/mmap.c:598 [inline] [<00000000bfe8137f>] vma_link+0xc3/0x180 mm/mmap.c:612 [<000000009159fd2d>] mmap_region+0x865/0xfa0 mm/mmap.c:1747 [<000000009a387dab>] do_mmap+0x539/0xbc0 mm/mmap.c:1505 [<000000001b7c6140>] do_mmap_pgoff include/linux/mm.h:2047 [inline] [<000000001b7c6140>] vm_mmap_pgoff+0x179/0x1c0 mm/util.c:329 [<0000000075b50db9>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000075b50db9>] SyS_mmap_pgoff+0xfa/0x1b0 mm/mmap.c:1513 [<00000000b8bcca69>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000b8bcca69>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000064fe0bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000bc13cb9d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: cc1 c1d c00 ce9 c9a cfe cff cff c4c c89 cef ce8 c13 cc1 c1d c00 ce9 c1e cfe cff cff c66 c2e c0f c1f c84 c00 c00 c00 c00 c00 c0f c1f c40 c00 c55 c48 c89 ce5 c48 c8b c75 c08 c<65> c48 c8b c04 c25 c00 c7e c01 c00 c65 c8b c15 cc8 c6f ccf c7e c81 ce2 c00 c01 c1f c