Warning: Permanently added '10.128.0.199' (ECDSA) to the list of known hosts. 2019/02/14 10:55:36 parsed 1 programs 2019/02/14 10:55:39 executed programs: 0 INIT: Id "1" 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 INIT: Id "6" respawning too fast: disabled for 5 minutes [ 981.622291] INFO: task syz-executor.2:2195 blocked for more than 140 seconds. [ 981.629640] Not tainted 4.4.174+ #4 [ 981.633812] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.641770] syz-executor.2 D ffff8800b4a47648 25392 2195 1 0x00000004 [ 981.649255] ffff8800b4a47648 ffff8800b4a92f80 621948c24fb84abc ffff8800b4a92f80 [ 981.657423] 0000000000000001 ffff8800b4a93800 ffff8801db71f180 ffff8801db71f1a8 [ 981.665466] ffff8801db71e898 ffff8801d6eac740 ffff8800b4a92f80 ffffed0016948001 [ 981.673516] Call Trace: [ 981.676191] [] schedule+0x99/0x1d0 [ 981.681508] [] schedule_preempt_disabled+0x13/0x20 [ 981.688108] [] mutex_lock_nested+0x3c2/0xb80 [ 981.694160] [] ? lo_open+0x1d/0xb0 [ 981.699328] [] ? mutex_lock_nested+0x645/0xb80 [ 981.705571] [] ? __blkdev_get+0x10c/0xdf0 [ 981.711357] [] ? debug_lockdep_rcu_enabled+0x13/0xa0 [ 981.718136] [] ? mutex_trylock+0x500/0x500 [ 981.724014] [] ? disk_get_part+0x158/0x2c0 [ 981.729876] [] ? loop_unregister_transfer+0x90/0x90 [ 981.736547] [] lo_open+0x1d/0xb0 [ 981.741547] [] __blkdev_get+0x2ae/0xdf0 [ 981.747186] [] ? __blkdev_put+0x840/0x840 [ 981.752988] [] ? trace_hardirqs_on+0x10/0x10 [ 981.759020] [] blkdev_get+0x2e8/0x920 [ 981.764471] [] ? bd_may_claim+0xd0/0xd0 [ 981.770069] [] ? bd_acquire+0x8a/0x370 [ 981.775627] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.781589] [] blkdev_open+0x1aa/0x250 [ 981.787134] [] do_dentry_open+0x38f/0xbd0 [ 981.792917] [] ? __inode_permission2+0x9e/0x250 [ 981.799267] [] ? blkdev_get_by_dev+0x80/0x80 [ 981.805393] [] vfs_open+0x10b/0x210 [ 981.810656] [] ? may_open.isra.0+0xe7/0x210 [ 981.816628] [] path_openat+0x136f/0x4470 [ 981.822333] [] ? kasan_kmalloc.part.0+0xc6/0xf0 [ 981.828627] [] ? may_open.isra.0+0x210/0x210 [ 981.834688] [] ? trace_hardirqs_on+0x10/0x10 [ 981.840721] [] do_filp_open+0x1a1/0x270 [ 981.846342] [] ? trace_hardirqs_on+0x10/0x10 [ 981.852404] [] ? user_path_mountpoint_at+0x50/0x50 [ 981.858962] [] ? __alloc_fd+0x1ea/0x490 [ 981.864848] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.870799] [] do_sys_open+0x2f8/0x600 [ 981.876340] [] ? mntput+0x66/0x90 [ 981.881416] [] ? filp_open+0x70/0x70 [ 981.886788] [] ? SyS_mkdirat+0x164/0x250 [ 981.892490] [] ? task_work_run+0x251/0x2b0 [ 981.898426] [] ? SyS_mknod+0x40/0x40 [ 981.903803] [] ? int_ret_from_sys_call+0x52/0xa3 [ 981.910193] [] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 981.917061] [] SyS_open+0x2d/0x40 [ 981.922165] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 981.928741] 2 locks held by syz-executor.2/2195: [ 981.933584] #0: (&bdev->bd_mutex){+.+.+.}, at: [] __blkdev_get+0x10c/0xdf0 [ 981.942936] #1: (loop_index_mutex){+.+.+.}, at: [] lo_open+0x1d/0xb0 [ 981.951761] Sending NMI to all CPUs: [ 981.956667] NMI backtrace for cpu 0 [ 981.960276] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.174+ #4 [ 981.966511] task: ffffffff82e151c0 task.stack: ffffffff82e00000 [ 981.972558] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 981.980932] RSP: 0018:ffffffff82e07db0 EFLAGS: 00000246 [ 981.986385] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 981.993644] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82e15a84 [ 982.000957] RBP: ffffffff82e07de0 R08: 0000000000000000 R09: 0000000000000000 [ 982.008262] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 982.015536] R13: ffffffff82e08000 R14: dffffc0000000000 R15: ffffffff82e00000 [ 982.022811] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 982.031017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.036920] CR2: 0000000001fec000 CR3: 00000000ba64f000 CR4: 00000000001606b0 [ 982.044181] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.051440] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.058728] Stack: [ 982.060855] ffffffff81020b16 ffffffff82e00000 0000000000000000 ffffffff82e08000 [ 982.068386] dffffc0000000000 ffffffff82e00000 ffffffff82e07df0 ffffffff81022d50 [ 982.075903] ffffffff82e07e08 ffffffff811eb4c8 0000000000000000 ffffffff82e07ed0 [ 982.083438] Call Trace: [ 982.085998] [] ? default_idle+0x56/0x3d0 [ 982.091682] [] arch_cpu_idle+0x10/0x20 [ 982.097229] [] default_idle_call+0x48/0x70 [ 982.103101] [] cpu_startup_entry+0x6d1/0x810 [ 982.109133] [] ? complete+0x18/0x70 [ 982.114412] [] ? call_cpuidle+0xe0/0xe0 [ 982.120017] [] ? schedule+0xab/0x1d0 [ 982.125403] [] rest_init+0x190/0x199 [ 982.130746] [] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 982.138815] [] start_kernel+0x64a/0x67e [ 982.144430] [] ? thread_stack_cache_init+0xb/0xb [ 982.150814] [] ? early_idt_handler_array+0x120/0x120 [ 982.157577] [] ? early_idt_handler_array+0x120/0x120 [ 982.164361] [] x86_64_start_reservations+0x29/0x2b [ 982.170913] [] x86_64_start_kernel+0x137/0x15a [ 982.177142] 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 [ 982.196122] NMI backtrace for cpu 1 [ 982.199723] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #4 [ 982.206130] task: ffff8801da6f4740 task.stack: ffff8800001d0000 [ 982.212185] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 982.220908] RSP: 0018:ffff8800001d7c88 EFLAGS: 00000046 [ 982.226360] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 982.233618] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 982.241144] RBP: ffff8800001d7cb8 R08: 0000000000000018 R09: 0000000000000000 [ 982.248442] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 982.255772] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 982.263057] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.271261] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.277147] CR2: 00000000007831ec CR3: 00000000b6bdb000 CR4: 00000000001606b0 [ 982.284410] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.291660] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.298946] Stack: [ 982.301079] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.308620] 000000000001b6c0 0000000000000008 ffff8800001d7cd8 ffffffff81092bee [ 982.316153] 0000000000000008 ffffffff82924260 ffff8800001d7d30 ffffffff81ab8252 [ 982.323701] Call Trace: [ 982.326262] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.332675] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.340121] [] ? print_lock+0xa8/0xab [ 982.345579] [] ? irq_force_complete_move+0x330/0x330 [ 982.352315] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.359300] [] watchdog.cold+0xd3/0xee [ 982.364891] [] ? watchdog+0xac/0xa00 [ 982.370233] [] ? reset_hung_task_detector+0x20/0x20 [ 982.376907] [] kthread+0x273/0x310 [ 982.382069] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.388753] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.395058] [] ? finish_task_switch+0x1e1/0x660 [ 982.401348] [] ? finish_task_switch+0x1b3/0x660 [ 982.407676] [] ? __schedule+0x7af/0x1ee0 [ 982.413390] [] ? __schedule+0x7a3/0x1ee0 [ 982.419077] [] ? __schedule+0x7af/0x1ee0 [ 982.424800] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.431442] [] ret_from_fork+0x55/0x80 [ 982.436986] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.443643] 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 [ 982.462712] Kernel panic - not syncing: hung_task: blocked tasks [ 982.468845] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #4 [ 982.475230] 0000000000000000 12257e8807cd5d51 ffff8800001d7c60 ffffffff81aad1a1 [ 982.483234] ffff8800b4a92f80 ffffffff82872120 dffffc0000000000 0000000000000002 [ 982.491337] 00000000003fff9c ffff8800001d7d40 ffffffff813a48c2 0000000041b58ab3 [ 982.499382] Call Trace: [ 982.501948] [] dump_stack+0xc1/0x120 [ 982.507288] [] panic+0x1b9/0x37b [ 982.512285] [] ? add_taint.cold+0x16/0x16 [ 982.518063] [] ? find_next_bit+0x44/0x50 [ 982.523755] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.531052] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.538354] [] watchdog.cold+0xe4/0xee [ 982.543959] [] ? watchdog+0xac/0xa00 [ 982.549297] [] ? reset_hung_task_detector+0x20/0x20 [ 982.555936] [] kthread+0x273/0x310 [ 982.561101] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.567743] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.574045] [] ? finish_task_switch+0x1e1/0x660 [ 982.580339] [] ? finish_task_switch+0x1b3/0x660 [ 982.586632] [] ? __schedule+0x7af/0x1ee0 [ 982.592325] [] ? __schedule+0x7a3/0x1ee0 [ 982.598014] [] ? __schedule+0x7af/0x1ee0 [ 982.603703] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.610349] [] ret_from_fork+0x55/0x80 [ 982.615863] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.622809] Kernel Offset: disabled [ 982.626429] Rebooting in 86400 seconds..