INIT: Id "1" 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 "3" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. executing program INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "5" 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 "6" respawning too fast: disabled for 5 minutes [ 702.374164] INFO: task syz-executor292:3793 blocked for more than 140 seconds. [ 702.381551] Not tainted 4.4.139-g7ba5557 #66 [ 702.386487] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 702.394735] syz-executor292 D ffff8800b1fd74e0 26064 3793 3791 0x00000000 [ 702.402193] ffff8800b1fd74e0 000000000000003f 00007ffca4ff4788 b477450dc68f78cb [ 702.410217] ffff8800b1fd7600 ffff8801db21fdb8 ffff8801db21fde0 ffff8801db21f4d8 [ 702.418230] ffff8801db21f4c0 ffffffff84417840 ffff8801d88bc800 0000000000000000 [ 702.426254] Call Trace: [ 702.428951] [] schedule+0x7a/0x1b0 [ 702.434156] [] schedule_timeout+0x481/0x8b0 [ 702.440116] [] ? usleep_range+0x140/0x140 [ 702.446041] [] ? kvm_clock_read+0x23/0x40 [ 702.451826] [] ? kvm_clock_get_cycles+0x9/0x10 [ 702.458118] [] ? ktime_get+0x171/0x1e0 [ 702.463801] [] ? __delayacct_blkio_start+0x41/0x80 [ 702.470393] [] io_schedule_timeout+0x1ba/0x390 [ 702.476620] [] bit_wait_io+0x1b/0xd0 [ 702.481962] [] __wait_on_bit_lock.part.4+0x92/0x140 [ 702.488646] [] ? bit_wait+0xc0/0xc0 [ 702.493912] [] __wait_on_bit_lock+0x9/0x10 [ 702.499869] [] __lock_page+0x17d/0x1f0 [ 702.505430] [] ? add_page_wait_queue+0x150/0x150 [ 702.511848] [] ? wake_atomic_t_function+0x220/0x220 [ 702.518550] [] ? __might_sleep+0x90/0x1a0 [ 702.524404] [] __generic_file_splice_read+0x7eb/0xbb0 [ 702.531224] [] ? splice_grow_spd+0x1c0/0x1c0 [ 702.537292] [] ? page_cache_pipe_buf_release+0x70/0x70 [ 702.544262] [] ? save_stack_trace+0x26/0x50 [ 702.550242] [] ? save_stack+0x43/0xd0 [ 702.555712] [] ? kasan_kmalloc+0xc7/0xe0 [ 702.561408] [] ? __kmalloc+0x124/0x310 [ 702.566989] [] ? alloc_pipe_info+0x1ad/0x420 [ 702.573025] [] ? splice_direct_to_actor+0x661/0x830 [ 702.579719] [] ? fsnotify+0x866/0x10c0 [ 702.585337] [] ? avc_has_perm+0x2f3/0x4f0 [ 702.591110] [] ? avc_has_perm_noaudit+0x450/0x450 [ 702.597615] [] ? __fsnotify_update_child_dentry_flags.part.2+0x300/0x300 [ 702.606107] [] ? fsnotify+0x10c0/0x10c0 [ 702.611888] [] ? mark_held_locks+0xc7/0x130 [ 702.617883] [] ? mark_held_locks+0xc7/0x130 [ 702.623840] [] ? avc_policy_seqno+0x9/0x20 [ 702.629738] [] ? selinux_file_permission+0x2f2/0x450 [ 702.636500] [] generic_file_splice_read+0xe2/0x1c0 [ 702.643057] [] ? __generic_file_splice_read+0xbb0/0xbb0 [ 702.650184] [] do_splice_to+0xf7/0x140 [ 702.655738] [] splice_direct_to_actor+0x242/0x830 [ 702.662206] [] ? pipe_to_sendpage+0x330/0x330 [ 702.668369] [] ? do_splice_to+0x140/0x140 [ 702.674233] [] ? security_file_permission+0x8f/0x1e0 [ 702.680962] [] ? rw_verify_area+0x100/0x300 [ 702.686946] [] do_splice_direct+0x1a3/0x270 [ 702.692900] [] ? splice_direct_to_actor+0x830/0x830 [ 702.699618] [] ? rcu_sync_lockdep_assert+0x73/0xb0 [ 702.706199] [] ? __sb_start_write+0x14f/0x310 [ 702.712775] [] do_sendfile+0x4e4/0xb80 [ 702.718348] [] ? __compat_sys_pwritev64+0x170/0x170 [ 702.725077] [] ? __might_fault+0x114/0x1d0 [ 702.730954] [] SyS_sendfile64+0xc3/0x150 [ 702.736694] [] ? SyS_sendfile+0x160/0x160 [ 702.742483] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 702.749038] [] entry_SYSCALL_64_fastpath+0x22/0x9e [ 702.755687] 1 lock held by syz-executor292/3793: [ 702.760445] #0: (sb_writers#5){.+.+.+}, at: [] do_sendfile+0x863/0xb80 [ 702.769602] Sending NMI to all CPUs: [ 702.773622] NMI backtrace for cpu 0 [ 702.777268] CPU: 0 PID: 492 Comm: khungtaskd Not tainted 4.4.139-g7ba5557 #66 [ 702.784548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 702.793890] task: ffff8801d8e11800 task.stack: ffff8801d8e00000 [ 702.799955] RIP: 0010:[] [] flat_send_IPI_mask+0xf6/0x1a0 [ 702.808698] RSP: 0018:ffff8801d8e07cc8 EFLAGS: 00000046 [ 702.814151] RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 702.821486] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300 [ 702.828763] RBP: ffff8801d8e07cf0 R08: 0000000000000001 R09: 0000000000000000 [ 702.836034] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 702.843280] R13: 0000000000000003 R14: 0000000000000002 R15: ffffffff8446f6a0 [ 702.850551] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 702.858776] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 702.864652] CR2: 00007f80d1bc5000 CR3: 00000000b380c000 CR4: 00000000001606f0 [ 702.871899] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 702.879185] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 702.886458] Stack: [ 702.888581] ffffffff8446f6a0 ffffffff84a18ca0 0000000000000007 fffffbfff0942c44 [ 702.896117] 0000000000000040 ffff8801d8e07d10 ffffffff810b5b01 ffffffff83c0b2a0 [ 702.903625] 0000000000000003 ffff8801d8e07d68 ffffffff81e18603 ffffffff8140dd6f [ 702.911164] Call Trace: [ 702.913724] [] nmi_raise_cpu_backtrace+0x61/0x80 [ 702.920146] [] nmi_trigger_all_cpu_backtrace.cold.4+0x70/0xad [ 702.927681] [] ? print_lock+0x9f/0xa2 [ 702.933108] [] ? irq_force_complete_move+0x350/0x350 [ 702.939871] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 702.946882] [] watchdog.cold.1+0xd3/0xee [ 702.952575] [] ? watchdog+0xb0/0x9a0 [ 702.957936] [] kthread+0x268/0x300 [ 702.963098] [] ? reset_hung_task_detector+0x20/0x20 [ 702.969768] [] ? kthread_create_on_node+0x400/0x400 [ 702.976421] [] ? kthread_create_on_node+0x400/0x400 [ 702.983061] [] ret_from_fork+0x55/0x80 [ 702.988599] [] ? kthread_create_on_node+0x400/0x400 [ 702.995259] Code: b3 5f ff f6 c4 10 75 e2 44 89 e8 c1 e0 18 89 04 25 10 b3 5f ff 44 89 f2 09 da 80 cf 04 41 83 fe 02 0f 44 d3 89 14 25 00 b3 5f ff <41> f7 c4 00 02 00 00 75 1a 4c 89 e7 57 9d 0f 1f 44 00 00 e8 e2 [ 703.014278] NMI backtrace for cpu 1 [ 703.017884] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.139-g7ba5557 #66 [ 703.024911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 703.034284] task: ffff8801d9a41800 task.stack: ffff8801d9a50000 [ 703.040329] RIP: 0010:[] [] native_safe_halt+0x6/0x10 [ 703.048730] RSP: 0018:ffff8801d9a57da0 EFLAGS: 00000246 [ 703.054169] RAX: 0000000000000007 RBX: ffffffff84a05d68 RCX: 0000000000000000 [ 703.061424] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d9a420dc [ 703.068716] RBP: ffff8801d9a57da0 R08: 0000000000000000 R09: 0000000000000000 [ 703.075993] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 703.083260] R13: 0000000000000001 R14: fffffbfff07488e8 R15: ffffffff84a05d68 [ 703.090536] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 703.098763] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 703.105004] CR2: 00007f80d1bc5000 CR3: 00000000b380c000 CR4: 00000000001606f0 [ 703.112601] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 703.119900] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 703.127194] Stack: [ 703.129408] ffff8801d9a57dd8 ffffffff81025cf5 ffff8801d9a58000 0000000000000000 [ 703.136966] 0000000000000000 fffffbfff07488e8 ffffffff84a05d68 ffff8801d9a57de8 [ 703.144520] ffffffff81027240 ffff8801d9a57e00 ffffffff8121bc07 dffffc0000000000 [ 703.152318] Call Trace: [ 703.154916] [] default_idle+0x55/0x3c0 [ 703.160442] [] arch_cpu_idle+0x10/0x20 [ 703.166002] [] default_idle_call+0x57/0x70 [ 703.171864] [] cpu_startup_entry+0x6af/0x780 [ 703.177938] [] ? call_cpuidle+0xe0/0xe0 [ 703.183545] [] start_secondary+0x324/0x400 [ 703.189437] [] ? set_cpu_sibling_map+0x1180/0x1180 [ 703.196017] Code: 00 00 00 00 00 55 48 89 e5 fa 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 66 0f 1f 84 [ 703.215232] Kernel panic - not syncing: hung_task: blocked tasks [ 703.221383] CPU: 0 PID: 492 Comm: khungtaskd Not tainted 4.4.139-g7ba5557 #66 [ 703.228637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 703.237989] 0000000000000000 3cf38648c50f4c71 ffff8801d8e07cb8 ffffffff81e0d58d [ 703.245984] ffffffff83a836c0 0000000000000003 7fffffffffffffff 00000000003fff91 [ 703.254098] dffffc0000000000 ffff8801d8e07d78 ffffffff8140a184 0000000041b58ab3 [ 703.262104] Call Trace: [ 703.264671] [] dump_stack+0xc1/0x124 [ 703.270011] [] panic+0x19e/0x38d [ 703.275000] [] ? add_taint.cold.4+0x16/0x16 [ 703.280959] [] ? nmi_trigger_all_cpu_backtrace+0x3e6/0x488 [ 703.288398] [] ? nmi_trigger_all_cpu_backtrace+0x395/0x488 [ 703.295659] [] ? nmi_trigger_all_cpu_backtrace+0x395/0x488 [ 703.302911] [] watchdog.cold.1+0xe4/0xee [ 703.308609] [] ? watchdog+0xb0/0x9a0 [ 703.313948] [] kthread+0x268/0x300 [ 703.319109] [] ? reset_hung_task_detector+0x20/0x20 [ 703.325769] [] ? kthread_create_on_node+0x400/0x400 [ 703.332411] [] ? kthread_create_on_node+0x400/0x400 [ 703.339075] [] ret_from_fork+0x55/0x80 [ 703.344596] [] ? kthread_create_on_node+0x400/0x400 [ 703.351812] Dumping ftrace buffer: [ 703.355381] (ftrace buffer empty) [ 703.359069] Kernel Offset: disabled [ 703.362688] Rebooting in 86400 seconds..