INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. executing program [ 715.922304] INFO: task kworker/u4:1:64 blocked for more than 140 seconds. [ 715.929271] Not tainted 4.9.131+ #50 [ 715.933742] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 715.941708] kworker/u4:1 D25352 64 2 0x80000000 [ 715.947581] Workqueue: writeback wb_workfn (flush-8:0) [ 715.953182] ffff8801d7fe5f00 0000000000000000 ffff8801d4c78580 ffffffff83029180 [ 715.961230] ffff8801db621018 ffff8801d793f130 ffffffff827f3542 ffff8801d7fe5f00 [ 715.969569] 0000000000000000 0000000000000000 0000000000000000 ffff8801db6218f0 [ 715.977712] Call Trace: [ 715.980293] [] ? __schedule+0x662/0x1b10 [ 715.986123] [] schedule+0x7f/0x1b0 [ 715.991314] [] wait_transaction_locked+0x1a5/0x230 [ 715.998007] [] ? wait_transaction_locked+0x15c/0x230 [ 716.004831] [] ? ext4_init_security+0x40/0x40 [ 716.010973] [] ? save_stack_trace+0x16/0x20 [ 716.017066] [] ? autoremove_wake_function.part.0+0x130/0x130 [ 716.024616] [] ? __ext4_journal_start_sb+0x10c/0x460 [ 716.031368] [] ? ext4_writepages+0xe75/0x2e00 [ 716.038316] [] ? do_writepages+0xef/0x1d0 [ 716.044184] [] ? __writeback_single_inode+0xd9/0x1020 [ 716.051027] [] ? writeback_sb_inodes+0x4ac/0xe70 [ 716.057512] [] ? __writeback_inodes_wb+0xfb/0x1e0 [ 716.064073] [] add_transaction_credits+0x408/0x980 [ 716.070652] [] ? ext4_init_io_end+0x25/0x100 [ 716.076775] [] ? ext4_writepages+0xcd0/0x2e00 [ 716.082993] [] ? __writeback_single_inode+0xd9/0x1020 [ 716.089839] [] ? sub_reserved_credits+0x40/0x40 [ 716.096227] [] ? start_this_handle+0x239/0xe40 [ 716.102516] [] start_this_handle+0x340/0xe40 [ 716.108570] [] ? jbd2_journal_free_reserved+0x100/0x100 [ 716.115662] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 716.122577] [] ? kmem_cache_alloc+0x246/0x2b0 [ 716.128718] [] jbd2__journal_start+0x306/0x8b0 [ 716.135026] [] ? ext4_writepages+0xe75/0x2e00 [ 716.141171] [] __ext4_journal_start_sb+0x10c/0x460 [ 716.147819] [] ? ext4_meta_trans_blocks+0x214/0x2d0 [ 716.154549] [] ext4_writepages+0xe75/0x2e00 [ 716.160523] [] ? do_writepages+0xef/0x1d0 [ 716.167047] [] ? ext4_mark_inode_dirty+0xb40/0xb40 [ 716.173698] [] ? trace_hardirqs_on+0x10/0x10 [ 716.179748] [] ? trace_hardirqs_on+0x10/0x10 [ 716.185877] [] ? trace_hardirqs_on+0x10/0x10 [ 716.191932] [] ? ext4_mark_inode_dirty+0xb40/0xb40 [ 716.198581] [] do_writepages+0xef/0x1d0 [ 716.204266] [] ? page_writeback_cpu_online+0x20/0x20 [ 716.211015] [] ? check_preemption_disabled+0x3b/0x170 [ 716.217917] [] __writeback_single_inode+0xd9/0x1020 [ 716.224649] [] ? writeback_sb_inodes+0x39b/0xe70 [ 716.231049] [] writeback_sb_inodes+0x4ac/0xe70 [ 716.237344] [] ? __writeback_single_inode+0x1020/0x1020 [ 716.244435] [] ? down_read_trylock+0x6a/0xd0 [ 716.250489] [] ? trylock_super+0x20/0xf0 [ 716.256263] [] __writeback_inodes_wb+0xfb/0x1e0 [ 716.262639] [] wb_writeback+0x512/0xbd0 [ 716.268257] [] ? __writeback_inodes_wb+0x1e0/0x1e0 [ 716.274902] [] wb_workfn+0x8bc/0xe90 [ 716.280265] [] ? debug_object_deactivate+0x214/0x340 [ 716.287135] [] ? inode_wait_for_writeback+0x40/0x40 [ 716.294516] [] process_one_work+0x831/0x1530 [ 716.300609] [] ? process_one_work+0x774/0x1530 [ 716.306932] [] ? cancel_delayed_work_sync+0x20/0x20 [ 716.313665] [] worker_thread+0xd6/0x1140 [ 716.319373] [] ? ___preempt_schedule+0x16/0x18 [ 716.325739] [] kthread+0x26d/0x300 [ 716.330923] [] ? process_one_work+0x1530/0x1530 [ 716.337325] [] ? kthread_park+0xa0/0xa0 [ 716.343018] [] ? __switch_to_asm+0x34/0x70 [ 716.348897] [] ? kthread_park+0xa0/0xa0 [ 716.354651] [] ? kthread_park+0xa0/0xa0 [ 716.360272] [] ret_from_fork+0x5c/0x70 [ 716.365909] [ 716.365909] Showing all locks held in the system: [ 716.372340] 2 locks held by khungtaskd/24: [ 716.376564] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 716.385358] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 716.395150] 4 locks held by kworker/u4:1/64: [ 716.399547] #0: ("writeback"){.+.+.+}, at: [] process_one_work+0x73c/0x1530 [ 716.408939] #1: ((&(&wb->dwork)->work)){+.+.+.}, at: [] process_one_work+0x774/0x1530 [ 716.419181] #2: (&type->s_umount_key#32){++++.+}, at: [] trylock_super+0x20/0xf0 [ 716.429169] #3: (&sbi->s_journal_flag_rwsem){.+.+.+}, at: [] do_writepages+0xef/0x1d0 [ 716.439412] 3 locks held by rs:main Q:Reg/1894: [ 716.444090] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 [ 716.453062] #1: (sb_writers#4){.+.+.+}, at: [] vfs_write+0x3eb/0x520 [ 716.461990] #2: (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [] ext4_file_write_iter+0x122/0xd70 [ 716.473103] 2 locks held by getty/2024: [ 716.477064] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 716.486444] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 716.496450] [ 716.498065] ============================================= [ 716.498065] [ 716.506103] NMI backtrace for cpu 0 [ 716.509736] CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.131+ #50 [ 716.516215] ffff8801d9907d08 ffffffff81b37029 0000000000000000 0000000000000000 [ 716.524270] 0000000000000000 0000000000000001 ffffffff81098450 ffff8801d9907d40 [ 716.532317] ffffffff81b42139 0000000000000000 0000000000000000 0000000000000003 [ 716.540375] Call Trace: [ 716.542956] [] dump_stack+0xc1/0x128 [ 716.548316] [] ? irq_force_complete_move+0x330/0x330 [ 716.555064] [] nmi_cpu_backtrace.cold.0+0x48/0x87 [ 716.561557] [] ? irq_force_complete_move+0x330/0x330 [ 716.568304] [] nmi_trigger_cpumask_backtrace+0x12c/0x151 [ 716.575398] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 716.582401] [] watchdog+0x6ad/0xa20 [ 716.587664] [] ? watchdog+0x11c/0xa20 [ 716.593115] [] kthread+0x26d/0x300 [ 716.598297] [] ? reset_hung_task_detector+0x20/0x20 [ 716.604952] [] ? kthread_park+0xa0/0xa0 [ 716.610574] [] ? __switch_to_asm+0x34/0x70 [ 716.616447] [] ? kthread_park+0xa0/0xa0 [ 716.622061] [] ? kthread_park+0xa0/0xa0 [ 716.627675] [] ret_from_fork+0x5c/0x70 [ 716.633284] Sending NMI from CPU 0 to CPUs 1: [ 716.638296] NMI backtrace for cpu 1 [ 716.641928] CPU: 1 PID: 2153 Comm: syz-executor348 Not tainted 4.9.131+ #50 [ 716.649008] task: ffff8801cb192f80 task.stack: ffff8801cad20000 [ 716.655049] RIP: 0010:[] c [] lock_is_held+0x56/0x140 [ 716.663437] RSP: 0018:ffff8801cad274a8 EFLAGS: 00000246 [ 716.668870] RAX: 0000000000000246 RBX: ffff8801cb192f80 RCX: 0000000000000000 [ 716.676124] RDX: 0000000000000000 RSI: ffffffff81b9be7b RDI: ffff8801cb19382c [ 716.683377] RBP: ffff8801cad274c0 R08: ffff8801cb193918 R09: 0000000000000000 [ 716.690629] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c5094c78 [ 716.697880] R13: ffffffff830cc2e0 R14: ffff8801c5094c78 R15: 0000000000000000 [ 716.705149] FS: 0000000001197880(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 716.713445] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.719311] CR2: 00000000004550a0 CR3: 00000001cb136000 CR4: 00000000001606b0 [ 716.726566] Stack: [ 716.728708] 0000000000000003c ffff8801c5094c78c dffffc0000000000c ffff8801cad274d8c [ 716.736921] ffffffff81243993c 0000000000000000c ffff8801cad27528c ffffffff815bc6dbc [ 716.745147] 00001000cad27528c 0000000000008608c ffff8801d9180b80c 0000000000008608c [ 716.753356] Call Trace: [ 716.755918] [] rcu_read_lock_sched_held+0x103/0x120 [ 716.762561] [] __find_get_block+0x3eb/0x4d0 [ 716.768508] [] __getblk_gfp+0x38/0x700 [ 716.774045] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 716.780606] [] ? check_preemption_disabled+0x3b/0x170 [ 716.787423] [] __read_extent_tree_block+0xad/0x770 [ 716.793978] [] ext4_find_extent+0x351/0x940 [ 716.799931] [] ? __ext4_ext_check+0xac0/0xfc0 [ 716.806058] [] mext_check_coverage.constprop.2+0x256/0x400 [ 716.813321] [] ? ext4_check_blockref+0x1e0/0x1e0 [ 716.819713] [] ? down_write_nested+0x45/0xa0 [ 716.825753] [] ? ext4_double_down_write_data_sem+0x6c/0x80 [ 716.833003] [] ext4_move_extents+0x17bb/0x2a50 [ 716.839214] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 716.845943] [] ? ext4_double_up_write_data_sem+0x30/0x30 [ 716.853021] [] ? trace_hardirqs_on+0x10/0x10 [ 716.859297] [] ? trace_hardirqs_on+0x10/0x10 [ 716.865334] [] ? check_preemption_disabled+0x3b/0x170 [ 716.872153] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 716.878968] [] ? preempt_count_add+0x7d/0x170 [ 716.885091] [] ? mnt_clone_write+0xe3/0x140 [ 716.891038] [] ? __mnt_want_write_file+0x97/0xb0 [ 716.897418] [] ext4_ioctl+0x27fc/0x3620 [ 716.903025] [] ? ext4_ioctl_setflags+0x5d0/0x5d0 [ 716.909409] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 716.916138] [] ? avc_ss_reset+0x110/0x110 [ 716.921912] [] ? __sb_end_write+0xc1/0x100 [ 716.927775] [] ? vfs_fallocate+0x470/0x620 [ 716.933641] [] ? __might_sleep+0x95/0x1a0 [ 716.939415] [] ? ext4_ioctl_setflags+0x5d0/0x5d0 [ 716.945802] [] do_vfs_ioctl+0x1ac/0x11a0 [ 716.951491] [] ? ioctl_preallocate+0x220/0x220 [ 716.957707] [] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 716.965218] [] ? __sb_end_write+0x6b/0x100 [ 716.971079] [] ? vfs_write+0x324/0x520 [ 716.976691] [] ? security_file_ioctl+0x8f/0xc0 [ 716.982914] [] SyS_ioctl+0x8f/0xc0 [ 716.988086] [] ? do_vfs_ioctl+0x11a0/0x11a0 [ 716.994040] [] do_syscall_64+0x19f/0x550 [ 716.999735] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 717.006645] Code: cea c03 c0f cb6 c14 c02 c48 c89 cf8 c83 ce0 c07 c83 cc0 c03 c38 cd0 c7c c08 c84 cd2 c0f c85 cd8 c00 c00 c00 c8b c83 cac c08 c00 c00 c85 cc0 c0f c85 cba c00 c00 c00 c9c c58 c<0f> c1f c44 c00 c00 c48 c89 cc3 cfa c66 c0f c1f c44 c00 c00 c65 c4c c8b c24 c25 c00 c [ 717.038396] Kernel panic - not syncing: hung_task: blocked tasks [ 717.044553] CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.131+ #50 [ 717.051027] ffff8801d9907cc8 ffffffff81b37029 ffffffff82a783c0 00000000ffffffff [ 717.059064] 0000000000000000 0000000000000000 dffffc0000000000 ffff8801d9907d88 [ 717.067116] ffffffff813f6b25 0000000041b58ab3 ffffffff82e298d3 ffffffff813f6966 [ 717.075154] Call Trace: [ 717.077737] [] dump_stack+0xc1/0x128 [ 717.083093] [] panic+0x1bf/0x39f [ 717.088098] [] ? add_taint.cold.6+0x16/0x16 [ 717.094063] [] ? ___preempt_schedule+0x16/0x18 [ 717.100288] [] ? nmi_trigger_cpumask_backtrace+0x102/0x151 [ 717.107554] [] watchdog+0x6be/0xa20 [ 717.112821] [] ? watchdog+0x11c/0xa20 [ 717.118264] [] kthread+0x26d/0x300 [ 717.123444] [] ? reset_hung_task_detector+0x20/0x20 [ 717.130101] [] ? kthread_park+0xa0/0xa0 [ 717.135718] [] ? __switch_to_asm+0x34/0x70 [ 717.141601] [] ? kthread_park+0xa0/0xa0 [ 717.147217] [] ? kthread_park+0xa0/0xa0 [ 717.152830] [] ret_from_fork+0x5c/0x70 [ 717.158628] Kernel Offset: disabled [ 717.162257] Rebooting in 86400 seconds..