INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "2" 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 [ 728.336414] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.24' (ECDSA) to the list of known hosts. [ 733.940422] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program [ 734.025923] audit: type=1400 audit(1544918312.632:7): avc: denied { map } for pid=1881 comm="syz-executor825" path="/root/syz-executor825132348" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes [ 1001.440178] INFO: task syz-executor825:1893 blocked for more than 140 seconds. [ 1001.447651] Not tainted 4.14.88+ #23 [ 1001.452106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.460095] syz-executor825 D27408 1893 1883 0x00000004 [ 1001.465694] Call Trace: [ 1001.468353] ? __schedule+0x729/0x1ed0 [ 1001.472431] ? __sched_text_start+0x8/0x8 [ 1001.476831] ? lock_downgrade+0x560/0x560 [ 1001.481176] ? lock_acquire+0x10f/0x380 [ 1001.485148] ? __mutex_lock+0x1bc/0x1480 [ 1001.489193] schedule+0x7f/0x1b0 [ 1001.492781] schedule_preempt_disabled+0x13/0x20 [ 1001.497545] __mutex_lock+0x521/0x1480 [ 1001.501879] ? blkdev_reread_part+0x18/0x30 [ 1001.506203] ? __wake_up_common_lock+0xd2/0x120 [ 1001.511011] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1001.516444] ? mark_held_locks+0xc2/0x130 [ 1001.520609] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1001.525693] ? trace_hardirqs_on_caller+0x381/0x520 [ 1001.530712] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1001.535800] ? __wake_up_common+0x5a0/0x5a0 [ 1001.540162] ? blkdev_reread_part+0x18/0x30 [ 1001.544468] blkdev_reread_part+0x18/0x30 [ 1001.548657] loop_reread_partitions+0x72/0x80 [ 1001.553179] loop_set_status+0xa84/0xf40 [ 1001.557407] loop_set_status64+0x8d/0xe0 [ 1001.561506] ? loop_set_status_old+0x2d0/0x2d0 [ 1001.566090] lo_ioctl+0x3cd/0x17d0 [ 1001.569756] ? loop_clr_fd+0xac0/0xac0 [ 1001.573668] blkdev_ioctl+0x57d/0x18c0 [ 1001.577677] ? blkpg_ioctl+0x920/0x920 [ 1001.581590] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.587024] ? debug_check_no_obj_freed+0x2b2/0x77c [ 1001.592089] ? lock_downgrade+0x560/0x560 [ 1001.596212] ? lock_acquire+0x10f/0x380 [ 1001.600192] ? debug_check_no_obj_freed+0x150/0x77c [ 1001.605190] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1001.610296] ? trace_hardirqs_on_caller+0x381/0x520 [ 1001.615359] block_ioctl+0xd9/0x120 [ 1001.618958] ? blkdev_fallocate+0x3b0/0x3b0 [ 1001.623311] do_vfs_ioctl+0x1a0/0x1030 [ 1001.627188] ? ioctl_preallocate+0x1d0/0x1d0 [ 1001.632010] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1001.637725] ? rcu_read_lock_sched_held+0x102/0x120 [ 1001.642753] ? putname+0xcf/0x100 [ 1001.646235] ? do_sys_open+0x203/0x580 [ 1001.650145] ? filp_open+0x60/0x60 [ 1001.653837] ? security_file_ioctl+0x7c/0xb0 [ 1001.658227] SyS_ioctl+0x7e/0xb0 [ 1001.661610] ? do_vfs_ioctl+0x1030/0x1030 [ 1001.665757] do_syscall_64+0x19b/0x4b0 [ 1001.669623] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.674816] RIP: 0033:0x441247 [ 1001.678111] RSP: 002b:00007ffc0bb3bbf8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 1001.685838] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441247 [ 1001.693107] RDX: 00007ffc0bb3bc90 RSI: 0000000000004c04 RDI: 0000000000000005 [ 1001.700622] RBP: 0000000000000010 R08: 0000000000000000 R09: 000000000000000a [ 1001.707874] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000005 [ 1001.715170] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000000000 [ 1001.722450] INFO: task syz-executor825:1898 blocked for more than 140 seconds. [ 1001.729776] Not tainted 4.14.88+ #23 [ 1001.734024] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.741986] syz-executor825 D28184 1898 1884 0x00000004 [ 1001.747810] Call Trace: [ 1001.750443] ? __schedule+0x729/0x1ed0 [ 1001.754317] ? __sched_text_start+0x8/0x8 [ 1001.758489] ? lock_downgrade+0x560/0x560 [ 1001.763282] ? lock_acquire+0x10f/0x380 [ 1001.767235] ? __mutex_lock+0x1bc/0x1480 [ 1001.771303] schedule+0x7f/0x1b0 [ 1001.774668] schedule_preempt_disabled+0x13/0x20 [ 1001.779483] __mutex_lock+0x521/0x1480 [ 1001.783424] ? blkdev_reread_part+0x18/0x30 [ 1001.787737] ? __wake_up_common_lock+0xd2/0x120 [ 1001.792418] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1001.797849] ? mark_held_locks+0xc2/0x130 [ 1001.802009] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1001.807089] ? trace_hardirqs_on_caller+0x381/0x520 [ 1001.812125] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1001.817210] ? __wake_up_common+0x5a0/0x5a0 [ 1001.821554] ? blkdev_reread_part+0x18/0x30 [ 1001.825858] blkdev_reread_part+0x18/0x30 [ 1001.830214] loop_reread_partitions+0x72/0x80 [ 1001.834951] loop_set_status+0xa84/0xf40 [ 1001.839000] loop_set_status64+0x8d/0xe0 [ 1001.843085] ? loop_set_status_old+0x2d0/0x2d0 [ 1001.847671] lo_ioctl+0x3cd/0x17d0 [ 1001.851222] ? loop_clr_fd+0xac0/0xac0 [ 1001.855092] blkdev_ioctl+0x57d/0x18c0 [ 1001.859044] ? blkpg_ioctl+0x920/0x920 [ 1001.862952] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.868304] ? debug_check_no_obj_freed+0x2b2/0x77c [ 1001.873331] ? lock_downgrade+0x560/0x560 [ 1001.877460] ? lock_acquire+0x10f/0x380 [ 1001.881437] ? debug_check_no_obj_freed+0x150/0x77c [ 1001.886433] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1001.891862] ? trace_hardirqs_on_caller+0x381/0x520 [ 1001.896855] block_ioctl+0xd9/0x120 [ 1001.900484] ? blkdev_fallocate+0x3b0/0x3b0 [ 1001.904800] do_vfs_ioctl+0x1a0/0x1030 [ 1001.908659] ? ioctl_preallocate+0x1d0/0x1d0 [ 1001.913084] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1001.918779] ? rcu_read_lock_sched_held+0x102/0x120 [ 1001.923962] ? putname+0xcf/0x100 [ 1001.927508] ? do_sys_open+0x203/0x580 [ 1001.931424] ? filp_open+0x60/0x60 [ 1001.934967] ? security_file_ioctl+0x7c/0xb0 [ 1001.939354] SyS_ioctl+0x7e/0xb0 [ 1001.942748] ? do_vfs_ioctl+0x1030/0x1030 [ 1001.946880] do_syscall_64+0x19b/0x4b0 [ 1001.950811] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.955982] RIP: 0033:0x441247 [ 1001.959146] RSP: 002b:00007ffc0bb3bbf8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 1001.966866] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441247 [ 1001.974140] RDX: 00007ffc0bb3bc90 RSI: 0000000000004c04 RDI: 0000000000000005 [ 1001.981417] RBP: 0000000000000010 R08: 0000000000000000 R09: 000000000000000a [ 1001.988694] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000005 [ 1001.995969] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000000000 [ 1002.003242] INFO: task syz-executor825:1903 blocked for more than 140 seconds. [ 1002.010598] Not tainted 4.14.88+ #23 [ 1002.014983] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.023522] syz-executor825 D28360 1903 1882 0x00000004 [ 1002.029284] Call Trace: [ 1002.031900] ? __schedule+0x729/0x1ed0 [ 1002.035776] ? __sched_text_start+0x8/0x8 [ 1002.040175] ? lock_downgrade+0x560/0x560 [ 1002.044317] ? lock_acquire+0x10f/0x380 [ 1002.048268] ? __mutex_lock+0x1bc/0x1480 [ 1002.052365] schedule+0x7f/0x1b0 [ 1002.055744] schedule_preempt_disabled+0x13/0x20 [ 1002.060502] __mutex_lock+0x521/0x1480 [ 1002.064372] ? blkdev_reread_part+0x18/0x30 [ 1002.068665] ? __wake_up_common_lock+0xd2/0x120 [ 1002.073335] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1002.078763] ? mark_held_locks+0xc2/0x130 [ 1002.082998] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1002.088082] ? trace_hardirqs_on_caller+0x381/0x520 [ 1002.093110] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1002.098203] ? __wake_up_common+0x5a0/0x5a0 [ 1002.102539] ? blkdev_reread_part+0x18/0x30 [ 1002.106839] blkdev_reread_part+0x18/0x30 [ 1002.110992] loop_reread_partitions+0x72/0x80 [ 1002.115466] loop_set_status+0xa84/0xf40 [ 1002.119781] loop_set_status64+0x8d/0xe0 [ 1002.124104] ? loop_set_status_old+0x2d0/0x2d0 [ 1002.128684] lo_ioctl+0x3cd/0x17d0 [ 1002.132234] ? loop_clr_fd+0xac0/0xac0 [ 1002.136282] blkdev_ioctl+0x57d/0x18c0 [ 1002.140190] ? blkpg_ioctl+0x920/0x920 [ 1002.144053] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.149570] ? debug_check_no_obj_freed+0x2b2/0x77c [ 1002.154975] ? lock_downgrade+0x560/0x560 [ 1002.159110] ? lock_acquire+0x10f/0x380 [ 1002.163091] ? debug_check_no_obj_freed+0x150/0x77c [ 1002.168325] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1002.173584] ? trace_hardirqs_on_caller+0x381/0x520 [ 1002.178585] block_ioctl+0xd9/0x120 [ 1002.182214] ? blkdev_fallocate+0x3b0/0x3b0 [ 1002.186517] do_vfs_ioctl+0x1a0/0x1030 [ 1002.190417] ? ioctl_preallocate+0x1d0/0x1d0 [ 1002.194808] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1002.200545] ? rcu_read_lock_sched_held+0x102/0x120 [ 1002.205542] ? putname+0xcf/0x100 [ 1002.208970] ? do_sys_open+0x203/0x580 [ 1002.213033] ? filp_open+0x60/0x60 [ 1002.216571] ? security_file_ioctl+0x7c/0xb0 [ 1002.220989] SyS_ioctl+0x7e/0xb0 [ 1002.224345] ? do_vfs_ioctl+0x1030/0x1030 [ 1002.228474] do_syscall_64+0x19b/0x4b0 [ 1002.232405] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.237572] RIP: 0033:0x441247 [ 1002.240887] RSP: 002b:00007ffc0bb3bbf8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 1002.248575] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441247 [ 1002.255868] RDX: 00007ffc0bb3bc90 RSI: 0000000000004c04 RDI: 0000000000000005 [ 1002.263132] RBP: 0000000000000010 R08: 0000000000000000 R09: 000000000000000a [ 1002.270419] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000005 [ 1002.277665] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000000000 [ 1002.285281] INFO: task blkid:1909 blocked for more than 140 seconds. [ 1002.291782] Not tainted 4.14.88+ #23 [ 1002.295994] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.303974] blkid D28008 1909 1896 0x00000004 [ 1002.309593] Call Trace: [ 1002.312217] ? __schedule+0x729/0x1ed0 [ 1002.316088] ? __sched_text_start+0x8/0x8 [ 1002.320246] ? lock_downgrade+0x560/0x560 [ 1002.324386] ? lock_acquire+0x10f/0x380 [ 1002.328568] ? __mutex_lock+0x1bc/0x1480 [ 1002.332679] schedule+0x7f/0x1b0 [ 1002.336037] schedule_preempt_disabled+0x13/0x20 [ 1002.340822] __mutex_lock+0x521/0x1480 [ 1002.344759] ? generic_error_remove_page+0xa0/0xa0 [ 1002.349662] ? lo_release+0x1a/0x190 [ 1002.353389] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1002.358825] ? check_preemption_disabled+0x34/0x1e0 [ 1002.363865] ? lock_downgrade+0x560/0x560 [ 1002.367998] ? lock_acquire+0x10f/0x380 [ 1002.372031] ? __blkdev_put+0x1ce/0x6e0 [ 1002.375991] ? lo_compat_ioctl+0x130/0x130 [ 1002.380236] ? lo_release+0x1a/0x190 [ 1002.383928] lo_release+0x1a/0x190 [ 1002.387440] __blkdev_put+0x526/0x6e0 [ 1002.391258] ? bd_set_size+0x320/0x320 [ 1002.395193] ? locks_remove_file+0x2de/0x450 [ 1002.399575] ? blkdev_put+0x4d0/0x4d0 [ 1002.403380] ? blkdev_put+0x75/0x4d0 [ 1002.407078] ? blkdev_put+0x4d0/0x4d0 [ 1002.411209] blkdev_close+0x86/0xb0 [ 1002.414812] __fput+0x25e/0x6f0 [ 1002.418098] task_work_run+0x116/0x190 [ 1002.421993] exit_to_usermode_loop+0x12e/0x150 [ 1002.426560] do_syscall_64+0x35d/0x4b0 [ 1002.430457] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.435767] RIP: 0033:0x7f6394d8a2b0 [ 1002.439450] RSP: 002b:00007fff754db3d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1002.447180] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6394d8a2b0 [ 1002.454792] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 1002.462080] RBP: 0000000000000000 R08: 0000000000000028 R09: 0000000001680000 [ 1002.469331] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000016c2030 [ 1002.476621] R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 [ 1002.483898] INFO: task syz-executor825:1914 blocked for more than 140 seconds. [ 1002.491258] Not tainted 4.14.88+ #23 [ 1002.495472] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.503532] syz-executor825 D29656 1914 1885 0x00000004 [ 1002.509179] Call Trace: [ 1002.511779] ? __schedule+0x729/0x1ed0 [ 1002.515648] ? __sched_text_start+0x8/0x8 [ 1002.519769] ? lock_downgrade+0x560/0x560 [ 1002.523923] ? lock_acquire+0x10f/0x380 [ 1002.527874] ? __mutex_lock+0x1bc/0x1480 [ 1002.531937] schedule+0x7f/0x1b0 [ 1002.535285] schedule_preempt_disabled+0x13/0x20 [ 1002.540374] __mutex_lock+0x521/0x1480 [ 1002.544238] ? loop_control_ioctl+0x71/0x310 [ 1002.548620] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1002.554079] ? avc_ss_reset+0x100/0x100 [ 1002.558083] ? add_mm_counter_fast+0xb0/0xb0 [ 1002.562501] ? __lock_acquire+0x619/0x4320 [ 1002.566721] ? do_wp_page+0x254/0x1880 [ 1002.570624] ? loop_control_ioctl+0x71/0x310 [ 1002.575015] ? trace_hardirqs_on+0x10/0x10 [ 1002.579224] loop_control_ioctl+0x71/0x310 [ 1002.583601] ? loop_probe+0x180/0x180 [ 1002.587526] ? __handle_mm_fault+0x6b1/0x25f0 [ 1002.592068] ? loop_probe+0x180/0x180 [ 1002.595853] do_vfs_ioctl+0x1a0/0x1030 [ 1002.599717] ? ioctl_preallocate+0x1d0/0x1d0 [ 1002.604173] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1002.609933] ? __do_page_fault+0x485/0xb60 [ 1002.614190] ? lock_downgrade+0x4fb/0x560 [ 1002.618328] ? security_file_ioctl+0x7c/0xb0 [ 1002.622752] SyS_ioctl+0x7e/0xb0 [ 1002.626102] ? do_vfs_ioctl+0x1030/0x1030 [ 1002.630257] do_syscall_64+0x19b/0x4b0 [ 1002.634133] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.639292] RIP: 0033:0x441339 [ 1002.642495] RSP: 002b:00007ffc0bb3be38 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1002.650205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1002.657444] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 1002.664883] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1002.672484] R10: 000000000153e880 R11: 0000000000000213 R12: 00000000000b3358 [ 1002.679728] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 1002.687242] INFO: task syz-executor825:1915 blocked for more than 140 seconds. [ 1002.694613] Not tainted 4.14.88+ #23 [ 1002.699022] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.707002] syz-executor825 D29656 1915 1887 0x00000004 [ 1002.712654] Call Trace: [ 1002.715223] ? __schedule+0x729/0x1ed0 [ 1002.719086] ? __sched_text_start+0x8/0x8 [ 1002.723248] ? lock_downgrade+0x560/0x560 [ 1002.727370] ? lock_acquire+0x10f/0x380 [ 1002.731361] ? __mutex_lock+0x1bc/0x1480 [ 1002.735409] schedule+0x7f/0x1b0 [ 1002.738767] schedule_preempt_disabled+0x13/0x20 [ 1002.743561] __mutex_lock+0x521/0x1480 [ 1002.747434] ? loop_control_ioctl+0x71/0x310 [ 1002.751854] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1002.757288] ? avc_ss_reset+0x100/0x100 [ 1002.761273] ? add_mm_counter_fast+0xb0/0xb0 [ 1002.765664] ? __lock_acquire+0x619/0x4320 [ 1002.769872] ? do_wp_page+0x254/0x1880 [ 1002.773777] ? loop_control_ioctl+0x71/0x310 [ 1002.778165] ? trace_hardirqs_on+0x10/0x10 [ 1002.782612] loop_control_ioctl+0x71/0x310 [ 1002.786830] ? loop_probe+0x180/0x180 [ 1002.790645] ? __handle_mm_fault+0x6b1/0x25f0 [ 1002.795132] ? loop_probe+0x180/0x180 [ 1002.798903] do_vfs_ioctl+0x1a0/0x1030 [ 1002.803145] ? ioctl_preallocate+0x1d0/0x1d0 [ 1002.807532] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1002.813263] ? __do_page_fault+0x485/0xb60 [ 1002.817477] ? lock_downgrade+0x4fb/0x560 [ 1002.821636] ? security_file_ioctl+0x7c/0xb0 [ 1002.826042] SyS_ioctl+0x7e/0xb0 [ 1002.829401] ? do_vfs_ioctl+0x1030/0x1030 [ 1002.833553] do_syscall_64+0x19b/0x4b0 [ 1002.837427] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.842615] RIP: 0033:0x441339 [ 1002.845870] RSP: 002b:00007ffc0bb3be38 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1002.853577] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1002.860842] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 1002.868084] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1002.875524] R10: 000000000153e880 R11: 0000000000000213 R12: 00000000000b3355 [ 1002.882811] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 1002.890130] INFO: task syz-executor825:1916 blocked for more than 140 seconds. [ 1002.897472] Not tainted 4.14.88+ #23 [ 1002.901709] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.909655] syz-executor825 D29656 1916 1886 0x00000004 [ 1002.915312] Call Trace: [ 1002.917908] ? __schedule+0x729/0x1ed0 [ 1002.921805] ? mutex_spin_on_owner+0x1c9/0x4a0 [ 1002.926371] ? __sched_text_start+0x8/0x8 [ 1002.930861] ? lock_downgrade+0x560/0x560 [ 1002.935160] ? lock_acquire+0x10f/0x380 [ 1002.939290] ? __mutex_lock+0x5fc/0x1480 [ 1002.943384] schedule+0x7f/0x1b0 [ 1002.946728] schedule_preempt_disabled+0x13/0x20 [ 1002.951489] __mutex_lock+0x521/0x1480 [ 1002.955360] ? loop_control_ioctl+0x180/0x310 [ 1002.959968] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1002.965455] ? avc_ss_reset+0x100/0x100 [ 1002.969411] ? add_mm_counter_fast+0xb0/0xb0 [ 1002.973926] ? __lock_acquire+0x619/0x4320 [ 1002.978223] ? __radix_tree_lookup+0x183/0x220 [ 1002.982838] ? loop_control_ioctl+0x180/0x310 [ 1002.987315] loop_control_ioctl+0x180/0x310 [ 1002.991657] ? loop_probe+0x180/0x180 [ 1002.995449] ? __handle_mm_fault+0x6b1/0x25f0 [ 1002.999916] ? loop_probe+0x180/0x180 [ 1003.003722] do_vfs_ioctl+0x1a0/0x1030 [ 1003.007728] ? ioctl_preallocate+0x1d0/0x1d0 [ 1003.012158] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1003.017848] ? __do_page_fault+0x485/0xb60 [ 1003.022113] ? lock_downgrade+0x4fb/0x560 [ 1003.026250] ? security_file_ioctl+0x7c/0xb0 [ 1003.030838] SyS_ioctl+0x7e/0xb0 [ 1003.034194] ? do_vfs_ioctl+0x1030/0x1030 [ 1003.038320] do_syscall_64+0x19b/0x4b0 [ 1003.042233] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.047793] RIP: 0033:0x441339 [ 1003.051178] RSP: 002b:00007ffc0bb3be38 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1003.058990] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1003.066698] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 1003.073973] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1003.081256] R10: 000000000153e880 R11: 0000000000000213 R12: 00000000000b33da [ 1003.088508] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 1003.095809] INFO: task blkid:1917 blocked for more than 140 seconds. [ 1003.102331] Not tainted 4.14.88+ #23 [ 1003.106537] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.114701] blkid D27816 1917 1895 0x00000004 [ 1003.120388] Call Trace: [ 1003.122966] ? __schedule+0x729/0x1ed0 [ 1003.126849] ? __sched_text_start+0x8/0x8 [ 1003.131013] ? lock_downgrade+0x560/0x560 [ 1003.135141] ? lock_acquire+0x10f/0x380 [ 1003.139088] ? __mutex_lock+0x1bc/0x1480 [ 1003.143168] schedule+0x7f/0x1b0 [ 1003.146672] schedule_preempt_disabled+0x13/0x20 [ 1003.151447] __mutex_lock+0x521/0x1480 [ 1003.155318] ? __mutex_lock+0x6f4/0x1480 [ 1003.159348] ? lo_open+0x17/0xa0 [ 1003.162734] ? wait_for_common_io.constprop.2+0x3c0/0x3e0 [ 1003.168249] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1003.173708] ? refcount_inc_not_zero+0x6b/0xb0 [ 1003.178320] ? get_disk+0xd0/0xd0 [ 1003.181775] ? blkdev_ioctl+0x18c0/0x18c0 [ 1003.185902] ? exact_match+0x9/0x20 [ 1003.189496] ? get_disk+0xd0/0xd0 [ 1003.193314] ? kobj_lookup+0x335/0x420 [ 1003.197184] ? loop_unregister_transfer+0x90/0x90 [ 1003.202037] ? lo_open+0x17/0xa0 [ 1003.205381] lo_open+0x17/0xa0 [ 1003.208544] __blkdev_get+0x8e2/0xe50 [ 1003.212366] ? __blkdev_put+0x6e0/0x6e0 [ 1003.216327] ? check_preemption_disabled+0x34/0x1e0 [ 1003.221537] ? fsnotify+0x773/0x1200 [ 1003.225233] blkdev_get+0x97/0x8c0 [ 1003.228744] ? bd_may_claim+0xe0/0xe0 [ 1003.232542] ? bd_acquire+0x171/0x2c0 [ 1003.236321] ? lock_downgrade+0x560/0x560 [ 1003.240466] ? lock_acquire+0x10f/0x380 [ 1003.244421] ? bd_acquire+0x21/0x2c0 [ 1003.248110] blkdev_open+0x1bd/0x240 [ 1003.251830] ? security_file_open+0x88/0x190 [ 1003.256219] do_dentry_open+0x426/0xda0 [ 1003.260194] ? bd_acquire+0x2c0/0x2c0 [ 1003.263982] vfs_open+0x11c/0x210 [ 1003.267426] path_openat+0x5f9/0x2930 [ 1003.271237] ? path_mountpoint+0x9a0/0x9a0 [ 1003.275473] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1003.279946] ? trace_hardirqs_on+0x10/0x10 [ 1003.284199] do_filp_open+0x197/0x270 [ 1003.287981] ? may_open_dev+0xd0/0xd0 [ 1003.291798] ? _raw_spin_unlock+0x29/0x40 [ 1003.295937] do_sys_open+0x2ef/0x580 [ 1003.299623] ? filp_open+0x60/0x60 [ 1003.303173] ? up_read+0x17/0x30 [ 1003.306519] ? __do_page_fault+0x64c/0xb60 [ 1003.310757] ? do_syscall_64+0x43/0x4b0 [ 1003.314712] ? do_sys_open+0x580/0x580 [ 1003.318657] do_syscall_64+0x19b/0x4b0 [ 1003.322878] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.328060] RIP: 0033:0x7f5aa593d120 [ 1003.331956] RSP: 002b:00007ffe28d6a108 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1003.339650] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5aa593d120 [ 1003.346940] RDX: 00007ffe28d6af41 RSI: 0000000000000000 RDI: 00007ffe28d6af41 [ 1003.354224] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1003.361783] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000181c030 [ 1003.369096] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1003.376451] INFO: task blkid:1918 blocked for more than 140 seconds. [ 1003.382955] Not tainted 4.14.88+ #23 [ 1003.387164] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.395147] blkid D29000 1918 1899 0x00000004 [ 1003.400783] Call Trace: [ 1003.403359] ? __schedule+0x729/0x1ed0 [ 1003.407234] ? __sched_text_start+0x8/0x8 [ 1003.411455] ? lock_downgrade+0x560/0x560 [ 1003.415577] ? lock_acquire+0x10f/0x380 [ 1003.419522] ? __mutex_lock+0x1bc/0x1480 [ 1003.423595] schedule+0x7f/0x1b0 [ 1003.426943] schedule_preempt_disabled+0x13/0x20 [ 1003.431725] __mutex_lock+0x521/0x1480 [ 1003.435592] ? __mutex_lock+0x6f4/0x1480 [ 1003.439626] ? lo_open+0x17/0xa0 [ 1003.443010] ? wait_for_common_io.constprop.2+0x3c0/0x3e0 [ 1003.448538] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1003.454367] ? refcount_inc_not_zero+0x6b/0xb0 [ 1003.458935] ? get_disk+0xd0/0xd0 [ 1003.462403] ? blkdev_ioctl+0x18c0/0x18c0 [ 1003.466869] ? exact_match+0x9/0x20 [ 1003.470629] ? get_disk+0xd0/0xd0 [ 1003.474063] ? kobj_lookup+0x335/0x420 [ 1003.477957] ? loop_unregister_transfer+0x90/0x90 [ 1003.482816] ? lo_open+0x17/0xa0 [ 1003.486164] lo_open+0x17/0xa0 [ 1003.489336] __blkdev_get+0x8e2/0xe50 [ 1003.493160] ? __blkdev_put+0x6e0/0x6e0 [ 1003.497120] ? check_preemption_disabled+0x34/0x1e0 [ 1003.502328] ? fsnotify+0x773/0x1200 [ 1003.506036] blkdev_get+0x97/0x8c0 [ 1003.509552] ? bd_may_claim+0xe0/0xe0 [ 1003.513371] ? bd_acquire+0x171/0x2c0 [ 1003.517362] ? lock_downgrade+0x560/0x560 [ 1003.521535] ? lock_acquire+0x10f/0x380 [ 1003.525487] ? bd_acquire+0x21/0x2c0 [ 1003.529186] blkdev_open+0x1bd/0x240 [ 1003.532939] ? security_file_open+0x88/0x190 [ 1003.537518] do_dentry_open+0x426/0xda0 [ 1003.541521] ? bd_acquire+0x2c0/0x2c0 [ 1003.545325] vfs_open+0x11c/0x210 [ 1003.548752] path_openat+0x5f9/0x2930 [ 1003.552564] ? path_mountpoint+0x9a0/0x9a0 [ 1003.556779] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1003.561286] ? trace_hardirqs_on+0x10/0x10 [ 1003.565531] do_filp_open+0x197/0x270 [ 1003.569305] ? may_open_dev+0xd0/0xd0 [ 1003.573127] ? _raw_spin_unlock+0x29/0x40 [ 1003.577262] do_sys_open+0x2ef/0x580 [ 1003.581718] ? filp_open+0x60/0x60 [ 1003.585241] ? up_read+0x17/0x30 [ 1003.588710] ? __do_page_fault+0x64c/0xb60 [ 1003.593201] ? do_syscall_64+0x43/0x4b0 [ 1003.597164] ? do_sys_open+0x580/0x580 [ 1003.601283] do_syscall_64+0x19b/0x4b0 [ 1003.605250] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.610457] RIP: 0033:0x7fcec469a120 [ 1003.614146] RSP: 002b:00007ffddf120668 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1003.622284] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcec469a120 [ 1003.629542] RDX: 00007ffddf121f41 RSI: 0000000000000000 RDI: 00007ffddf121f41 [ 1003.636827] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1003.644094] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000023f0030 [ 1003.651359] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1003.658621] INFO: task blkid:1919 blocked for more than 140 seconds. [ 1003.665107] Not tainted 4.14.88+ #23 [ 1003.669314] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.677277] blkid D27816 1919 1892 0x00000004 [ 1003.682909] Call Trace: [ 1003.685476] ? __schedule+0x729/0x1ed0 [ 1003.689338] ? __sched_text_start+0x8/0x8 [ 1003.693495] ? lock_downgrade+0x560/0x560 [ 1003.697626] ? lock_acquire+0x10f/0x380 [ 1003.701619] ? __mutex_lock+0x1bc/0x1480 [ 1003.705666] schedule+0x7f/0x1b0 [ 1003.709008] schedule_preempt_disabled+0x13/0x20 [ 1003.714095] __mutex_lock+0x521/0x1480 [ 1003.717959] ? __mutex_lock+0x6f4/0x1480 [ 1003.722019] ? lo_open+0x17/0xa0 [ 1003.725365] ? wait_for_common_io.constprop.2+0x3c0/0x3e0 [ 1003.730908] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1003.736347] ? refcount_inc_not_zero+0x6b/0xb0 [ 1003.740942] ? disk_get_part+0x9a/0x140 [ 1003.744900] ? refcount_inc_not_zero+0x6b/0xb0 [ 1003.749451] ? check_preemption_disabled+0x34/0x1e0 [ 1003.754472] ? loop_unregister_transfer+0x90/0x90 [ 1003.759292] ? lo_open+0x17/0xa0 [ 1003.762655] lo_open+0x17/0xa0 [ 1003.765826] __blkdev_get+0x267/0xe50 [ 1003.769602] ? __blkdev_put+0x6e0/0x6e0 [ 1003.773585] ? check_preemption_disabled+0x34/0x1e0 [ 1003.778580] ? fsnotify+0x773/0x1200 [ 1003.782300] blkdev_get+0x97/0x8c0 [ 1003.785824] ? bd_may_claim+0xe0/0xe0 [ 1003.789607] ? bd_acquire+0x171/0x2c0 [ 1003.793409] ? lock_downgrade+0x560/0x560 [ 1003.797537] ? lock_acquire+0x10f/0x380 [ 1003.801522] ? bd_acquire+0x21/0x2c0 [ 1003.805223] blkdev_open+0x1bd/0x240 [ 1003.808908] ? security_file_open+0x88/0x190 [ 1003.813332] do_dentry_open+0x426/0xda0 [ 1003.817290] ? bd_acquire+0x2c0/0x2c0 [ 1003.821104] vfs_open+0x11c/0x210 [ 1003.824539] path_openat+0x5f9/0x2930 [ 1003.828317] ? path_mountpoint+0x9a0/0x9a0 [ 1003.832552] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1003.837029] ? trace_hardirqs_on+0x10/0x10 [ 1003.841928] do_filp_open+0x197/0x270 [ 1003.845714] ? may_open_dev+0xd0/0xd0 [ 1003.849500] ? _raw_spin_unlock+0x29/0x40 [ 1003.853695] do_sys_open+0x2ef/0x580 [ 1003.857399] ? filp_open+0x60/0x60 [ 1003.860984] ? up_read+0x17/0x30 [ 1003.864338] ? __do_page_fault+0x64c/0xb60 [ 1003.868550] ? do_syscall_64+0x43/0x4b0 [ 1003.872534] ? do_sys_open+0x580/0x580 [ 1003.876403] do_syscall_64+0x19b/0x4b0 [ 1003.880305] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.885474] RIP: 0033:0x7f558d692120 [ 1003.889172] RSP: 002b:00007ffddd4e7b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1003.896891] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f558d692120 [ 1003.904168] RDX: 00007ffddd4e9f41 RSI: 0000000000000000 RDI: 00007ffddd4e9f41 [ 1003.911447] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1003.918700] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000b78030 [ 1003.925982] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1003.933378] [ 1003.933378] Showing all locks held in the system: [ 1003.939670] 1 lock held by khungtaskd/23: [ 1003.943830] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x74/0x20f [ 1003.952877] 1 lock held by rsyslogd/1624: [ 1003.956995] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa2/0xc0 [ 1003.965323] 2 locks held by getty/1752: [ 1003.969279] #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 [ 1003.978284] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x1700 [ 1003.987598] 2 locks held by syz-executor825/1893: [ 1003.992447] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x85/0x17d0 [ 1004.001068] #1: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x18/0x30 [ 1004.009986] 2 locks held by syz-executor825/1898: [ 1004.014826] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x85/0x17d0 [ 1004.023428] #1: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x18/0x30 [ 1004.032687] 2 locks held by syz-executor825/1903: [ 1004.037748] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x85/0x17d0 [ 1004.046395] #1: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x18/0x30 [ 1004.055340] 2 locks held by blkid/1909: [ 1004.059289] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_put+0xb1/0x6e0 [ 1004.067793] #1: (loop_index_mutex){+.+.}, at: [] lo_release+0x1a/0x190 [ 1004.076217] 1 lock held by syz-executor825/1914: [ 1004.081015] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1004.090149] 1 lock held by syz-executor825/1915: [ 1004.094882] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1004.103990] 2 locks held by syz-executor825/1916: [ 1004.108805] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1004.117907] #1: (&lo->lo_ctl_mutex#2){+.+.}, at: [] loop_control_ioctl+0x180/0x310 [ 1004.127385] 2 locks held by blkid/1917: [ 1004.131359] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1004.139973] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1004.148052] 2 locks held by blkid/1918: [ 1004.152149] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1004.160658] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1004.168701] 2 locks held by blkid/1919: [ 1004.172684] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1004.181186] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1004.189330] 2 locks held by blkid/1920: [ 1004.193302] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1004.201910] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1004.209953] 2 locks held by blkid/1922: [ 1004.213922] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1004.222513] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1004.230582] [ 1004.232294] ============================================= [ 1004.232294] [ 1004.239338] NMI backtrace for cpu 1 [ 1004.242981] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.88+ #23 [ 1004.249442] Call Trace: [ 1004.252007] dump_stack+0xb9/0x11b [ 1004.255587] ? irq_force_complete_move.cold.3+0x64/0x64 [ 1004.260930] nmi_cpu_backtrace.cold.0+0x47/0x85 [ 1004.265567] ? irq_force_complete_move.cold.3+0x64/0x64 [ 1004.270988] nmi_trigger_cpumask_backtrace+0x121/0x146 [ 1004.276264] watchdog+0x574/0xa70 [ 1004.279711] ? reset_hung_task_detector+0x10/0x10 [ 1004.284524] kthread+0x348/0x420 [ 1004.287862] ? kthread_create_on_node+0xe0/0xe0 [ 1004.292503] ret_from_fork+0x3a/0x50 [ 1004.296362] Sending NMI from CPU 1 to CPUs 0: [ 1004.301189] NMI backtrace for cpu 0 [ 1004.301194] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.88+ #23 [ 1004.301199] task: ffffffffa5031200 task.stack: ffffffffa5000000 [ 1004.301203] RIP: 0010:__local_bh_disable_ip+0x0/0xc0 [ 1004.301208] RSP: 0018:ffff8881dba07fb0 EFLAGS: 00000046 [ 1004.301215] RAX: 0000000080000001 RBX: ffffffffa5031200 RCX: 1ffffffff49d5884 [ 1004.301221] RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffffa2cec5ea [ 1004.301226] RBP: ffff8881dba07fe8 R08: 0000000000000000 R09: 0000000000000000 [ 1004.301232] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000002a200 [ 1004.301237] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1004.301243] FS: 0000000000000000(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 1004.301247] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1004.301253] CR2: 000000000108a3e0 CR3: 0000000169226003 CR4: 00000000001606b0 [ 1004.301258] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1004.301264] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1004.301266] Call Trace: [ 1004.301269] [ 1004.301272] irq_enter+0xab/0xd0 [ 1004.301275] scheduler_ipi+0xb6/0x340 [ 1004.301280] ? default_inquire_remote_apic+0x50/0x50 [ 1004.301283] reschedule_interrupt+0x84/0x90 [ 1004.301286] [ 1004.301288] RIP: 0010:native_safe_halt+0x2/0x10 [ 1004.301290] RSP: 0018:ffffffffa5007d28 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02 [ 1004.301294] RAX: 0000000000000007 RBX: ffffffffa542f968 RCX: 0000000000000000 [ 1004.301296] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffffa5031a2c [ 1004.301299] RBP: ffffffffa5439da8 R08: 0000000000000001 R09: 0000000000000000 [ 1004.301301] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1004.301303] R13: 1ffffffff4a00fae R14: 0000000000000000 R15: ffffffffa5439e64 [ 1004.301305] default_idle+0x50/0x380 [ 1004.301306] do_idle+0x2da/0x3b0 [ 1004.301308] ? arch_cpu_idle_exit+0x40/0x40 [ 1004.301310] ? check_preemption_disabled+0x34/0x1e0 [ 1004.301311] cpu_startup_entry+0xc9/0xe0 [ 1004.301313] ? cpu_in_idle+0x20/0x20 [ 1004.301315] ? preempt_count_add+0xb8/0x180 [ 1004.301317] ? trace_event_define_fields_x86_irq_vector+0x28/0x28 [ 1004.301318] start_kernel+0x701/0x73f [ 1004.301320] ? mem_encrypt_init+0x5/0x5 [ 1004.301321] ? memcpy_orig+0x54/0x110 [ 1004.301323] secondary_startup_64+0xa5/0xb0 [ 1004.301324] Code: 89 04 24 e8 f3 29 44 00 48 8b 04 24 eb bd 48 89 14 24 e8 f4 29 44 00 48 8b 14 24 e9 1a ff ff ff 90 66 2e 0f 1f 84 00 00 00 00 00 <55> 53 89 f3 65 8b 05 a5 1f 33 5d a9 00 00 0f 00 0f 85 98 00 00 [ 1004.301902] Kernel panic - not syncing: hung_task: blocked tasks [ 1004.301908] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.88+ #23 [ 1004.301910] Call Trace: [ 1004.301918] dump_stack+0xb9/0x11b [ 1004.301927] panic+0x1bf/0x3a4 [ 1004.301934] ? add_taint.cold.4+0x16/0x16 [ 1004.301954] watchdog+0x585/0xa70 [ 1004.301967] ? reset_hung_task_detector+0x10/0x10 [ 1004.301974] kthread+0x348/0x420 [ 1004.301980] ? kthread_create_on_node+0xe0/0xe0 [ 1004.301989] ret_from_fork+0x3a/0x50 [ 1004.587907] Kernel Offset: 0x21c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 1004.598818] Rebooting in 86400 seconds..