INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. 2019/03/09 15:45:08 parsed 1 programs 2019/03/09 15:45:11 executed programs: 0 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 INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes [ 981.529056] INFO: task syz-executor.5:2203 blocked for more than 140 seconds. [ 981.536606] Not tainted 4.4.174+ #17 [ 981.540875] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.548846] syz-executor.5 D ffff8800b54a75d8 24800 2203 1 0x20020004 [ 981.556272] ffff8800b54a75d8 ffff8800b4d197c0 18a74f9b05dc0534 ffff8800b4d197c0 [ 981.564321] 0000000000000001 ffff8800b4d1a000 ffff8801db61f180 ffff8801db61f1a8 [ 981.572531] ffff8801db61e898 ffff8800b255af80 ffff8800b4d197c0 ffffed0016a94001 [ 981.580583] Call Trace: [ 981.583161] [] schedule+0x99/0x1d0 [ 981.588336] [] schedule_preempt_disabled+0x13/0x20 [ 981.595085] [] mutex_lock_nested+0x3c2/0xb80 [ 981.601147] [] ? lo_open+0x1d/0xb0 [ 981.606322] [] ? mutex_lock_nested+0x645/0xb80 [ 981.612595] [] ? __blkdev_get+0x10c/0xdf0 [ 981.618383] [] ? debug_lockdep_rcu_enabled+0x13/0xa0 [ 981.625163] [] ? mutex_trylock+0x500/0x500 [ 981.631060] [] ? disk_get_part+0x158/0x2c0 [ 981.636949] [] ? loop_unregister_transfer+0x90/0x90 [ 981.643641] [] lo_open+0x1d/0xb0 [ 981.648674] [] __blkdev_get+0x2ae/0xdf0 [ 981.654331] [] ? __blkdev_put+0x840/0x840 [ 981.660174] [] ? trace_hardirqs_on+0x10/0x10 [ 981.666218] [] blkdev_get+0x2e8/0x920 [ 981.671828] [] ? bd_may_claim+0xd0/0xd0 [ 981.677435] [] ? bd_acquire+0x8a/0x370 [ 981.683111] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.689125] [] blkdev_open+0x1aa/0x250 [ 981.694772] [] do_dentry_open+0x38f/0xbd0 [ 981.700619] [] ? __inode_permission2+0x9e/0x250 [ 981.706937] [] ? blkdev_get_by_dev+0x80/0x80 [ 981.713062] [] vfs_open+0x10b/0x210 [ 981.718322] [] ? may_open.isra.0+0xe7/0x210 [ 981.724314] [] path_openat+0x136f/0x4470 [ 981.730030] [] ? kasan_kmalloc.part.0+0xc6/0xf0 [ 981.736373] [] ? may_open.isra.0+0x210/0x210 [ 981.742614] [] ? trace_hardirqs_on+0x10/0x10 [ 981.748672] [] do_filp_open+0x1a1/0x270 [ 981.754324] [] ? user_path_mountpoint_at+0x50/0x50 [ 981.760927] [] ? do_dup2+0x3d0/0x3d0 [ 981.766305] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.772336] [] do_sys_open+0x2f8/0x600 [ 981.777857] [] ? mntput+0x66/0x90 [ 981.783239] [] ? filp_open+0x70/0x70 [ 981.788591] [] ? SyS_mkdirat+0x164/0x250 [ 981.794339] [] ? SyS_mknod+0x40/0x40 [ 981.799720] [] compat_SyS_open+0x2a/0x40 [ 981.805416] [] ? compat_SyS_getdents64+0x270/0x270 [ 981.812010] [] do_fast_syscall_32+0x32d/0xa90 [ 981.818143] [] sysenter_flags_fixed+0xd/0x1a [ 981.824220] 2 locks held by syz-executor.5/2203: [ 981.828977] #0: (&bdev->bd_mutex){+.+.+.}, at: [] __blkdev_get+0x10c/0xdf0 [ 981.838377] #1: (loop_index_mutex){+.+.+.}, at: [] lo_open+0x1d/0xb0 [ 981.847338] Sending NMI to all CPUs: [ 981.852347] NMI backtrace for cpu 0 [ 981.855957] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.174+ #17 [ 981.862283] task: ffffffff82e151c0 task.stack: ffffffff82e00000 [ 981.868317] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 981.876723] RSP: 0018:ffffffff82e07db0 EFLAGS: 00000246 [ 981.882233] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 981.889553] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82e15a84 [ 981.896806] RBP: ffffffff82e07de0 R08: 0000000000000000 R09: 0000000000000000 [ 981.904104] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 981.911396] R13: ffffffff82e08000 R14: dffffc0000000000 R15: ffffffff82e00000 [ 981.918824] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 981.927030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 981.932914] CR2: 0000000001af9000 CR3: 00000000b7fd5000 CR4: 00000000001606b0 [ 981.940186] Stack: [ 981.942311] ffffffff81020b16 ffffffff82e00000 0000000000000000 ffffffff82e08000 [ 981.949849] dffffc0000000000 ffffffff82e00000 ffffffff82e07df0 ffffffff81022d50 [ 981.957415] ffffffff82e07e08 ffffffff811eb4c8 0000000000000000 ffffffff82e07ed0 [ 981.964956] Call Trace: [ 981.967523] [] ? default_idle+0x56/0x3d0 [ 981.973249] [] arch_cpu_idle+0x10/0x20 [ 981.978827] [] default_idle_call+0x48/0x70 [ 981.984776] [] cpu_startup_entry+0x6d1/0x810 [ 981.990855] [] ? complete+0x18/0x70 [ 981.996105] [] ? call_cpuidle+0xe0/0xe0 [ 982.001738] [] ? schedule+0xab/0x1d0 [ 982.007193] [] rest_init+0x190/0x199 [ 982.012693] [] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 982.020901] [] start_kernel+0x64a/0x67e [ 982.026565] [] ? thread_stack_cache_init+0xb/0xb [ 982.033041] [] ? early_idt_handler_array+0x120/0x120 [ 982.039800] [] ? early_idt_handler_array+0x120/0x120 [ 982.046537] [] x86_64_start_reservations+0x29/0x2b [ 982.053158] [] x86_64_start_kernel+0x137/0x15a [ 982.059392] Code: 2e 0f 1f 84 00 00 00 00 00 fa c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 fb c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 0f 1f 40 00 66 [ 982.078520] NMI backtrace for cpu 1 [ 982.082195] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.088708] task: ffff8801da6f4740 task.stack: ffff8800001d0000 [ 982.094846] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 982.103736] RSP: 0018:ffff8800001d7c88 EFLAGS: 00000046 [ 982.109181] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 982.116430] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 982.123723] RBP: ffff8800001d7cb8 R08: 0000000000000018 R09: 0000000000000000 [ 982.131034] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 982.138281] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 982.145574] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.153800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.159693] CR2: 00000000011ab3e0 CR3: 00000001d25df000 CR4: 00000000001606b0 [ 982.166984] Stack: [ 982.169155] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.176769] 000000000001b6c0 0000000000000008 ffff8800001d7cd8 ffffffff81092bee [ 982.184480] 0000000000000008 ffffffff82924260 ffff8800001d7d30 ffffffff81ab8252 [ 982.192061] Call Trace: [ 982.194626] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.201068] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.208403] [] ? print_lock+0xa8/0xab [ 982.213884] [] ? irq_force_complete_move+0x330/0x330 [ 982.220644] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.227635] [] watchdog.cold+0xd3/0xee [ 982.233192] [] ? watchdog+0xac/0xa00 [ 982.238530] [] ? reset_hung_task_detector+0x20/0x20 [ 982.245262] [] kthread+0x273/0x310 [ 982.250451] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.257096] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.263467] [] ? finish_task_switch+0x1e1/0x660 [ 982.269808] [] ? finish_task_switch+0x1b3/0x660 [ 982.276107] [] ? __schedule+0x7af/0x1ee0 [ 982.281852] [] ? __schedule+0x7a3/0x1ee0 [ 982.287551] [] ? __schedule+0x7af/0x1ee0 [ 982.293366] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.300062] [] ret_from_fork+0x55/0x80 [ 982.305622] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.312425] Code: 00 c3 5f ff 80 e6 10 75 e1 41 c1 e5 18 44 89 2c 25 10 c3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 c3 5f ff <41> f7 c4 00 02 00 00 75 1e 4c 89 e7 57 9d 0f 1f 44 00 00 e8 f1 [ 982.331611] Kernel panic - not syncing: hung_task: blocked tasks [ 982.337767] CPU: 0 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.344233] 0000000000000000 127e0cddf555c88c ffff8800001d7c60 ffffffff81aad1a1 [ 982.352203] ffff8800b4d197c0 ffffffff82872120 dffffc0000000000 0000000000000003 [ 982.360174] 00000000003fff9d ffff8800001d7d40 ffffffff813a48c2 0000000041b58ab3 [ 982.368143] Call Trace: [ 982.370703] [] dump_stack+0xc1/0x120 [ 982.376112] [] panic+0x1b9/0x37b [ 982.381120] [] ? add_taint.cold+0x16/0x16 [ 982.386892] [] ? nmi_trigger_all_cpu_backtrace+0x3e1/0x490 [ 982.394139] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.401394] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.408660] [] watchdog.cold+0xe4/0xee [ 982.414179] [] ? watchdog+0xac/0xa00 [ 982.419517] [] ? reset_hung_task_detector+0x20/0x20 [ 982.426171] [] kthread+0x273/0x310 [ 982.431337] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.437994] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.444331] [] ? finish_task_switch+0x1e1/0x660 [ 982.450628] [] ? finish_task_switch+0x1b3/0x660 [ 982.456919] [] ? __schedule+0x7af/0x1ee0 [ 982.462601] [] ? __schedule+0x7a3/0x1ee0 [ 982.468340] [] ? __schedule+0x7af/0x1ee0 [ 982.474047] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.480688] [] ret_from_fork+0x55/0x80 [ 982.486207] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.493227] Kernel Offset: disabled [ 982.496854] Rebooting in 86400 seconds..