Warning: Permanently added '10.128.0.222' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 480.061690][ C1] hrtimer: interrupt took 49446 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 637.053708][ T1644] INFO: task syz-executor136:9222 blocked for more than 143 seconds. [ 637.068744][ T1644] Not tainted 5.10.0-rc4-next-20201123-syzkaller #0 executing program [ 637.104246][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 637.114530][ T1644] task:syz-executor136 state:D stack:28952 pid: 9222 ppid: 8504 flags:0x00004000 [ 637.125202][ T1644] Call Trace: [ 637.129286][ T1644] __schedule+0x896/0x2050 [ 637.133812][ T1644] ? io_schedule_timeout+0x140/0x140 [ 637.140099][ T1644] ? lockdep_hardirqs_on+0x79/0x100 executing program executing program [ 637.150506][ T1644] ? _raw_spin_unlock_irq+0x2a/0x40 [ 637.160399][ T1644] schedule+0xcf/0x270 [ 637.164723][ T1644] __io_uring_files_cancel+0xc4d/0x14b0 [ 637.187840][ T1644] ? __io_uring_free+0x1d0/0x1d0 [ 637.217990][ T1644] ? exit_sem+0x112/0x1e80 executing program executing program executing program [ 637.239629][ T1644] ? find_held_lock+0x2d/0x110 [ 637.245782][ T1644] ? add_wait_queue+0x150/0x150 [ 637.252885][ T1644] ? copy_semundo+0x2f0/0x2f0 [ 637.257919][ T1644] exit_files+0xe4/0x170 [ 637.262363][ T1644] do_exit+0xb61/0x29f0 [ 637.267950][ T1644] ? find_held_lock+0x2d/0x110 [ 637.281330][ T1644] ? mm_update_next_owner+0x7a0/0x7a0 [ 637.287454][ T1644] ? get_signal+0x2f6/0x2010 [ 637.303271][ T1644] ? lock_downgrade+0x6d0/0x6d0 [ 637.308373][ T1644] do_group_exit+0x125/0x310 [ 637.312987][ T1644] get_signal+0x3ec/0x2010 [ 637.317636][ T1644] ? futex_exit_release+0x220/0x220 [ 637.322972][ T1644] ? populate_vma_page_range+0x380/0x380 [ 637.329086][ T1644] ? do_mmap+0x616/0x11d0 [ 637.333556][ T1644] arch_do_signal_or_restart+0x2a8/0x1eb0 [ 637.340601][ T1644] ? vm_mmap_pgoff+0xe8/0x200 [ 637.345511][ T1644] ? randomize_stack_top+0x100/0x100 [ 637.352764][ T1644] ? copy_siginfo_to_user32+0xa0/0xa0 [ 637.359797][ T1644] ? __do_sys_futex+0x2a2/0x470 [ 637.369194][ T1644] ? do_futex+0x1a60/0x1a60 [ 637.374685][ T1644] exit_to_user_mode_prepare+0x124/0x200 [ 637.382535][ T1644] syscall_exit_to_user_mode+0x36/0x260 executing program executing program executing program [ 637.390014][ T1644] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 637.397354][ T1644] RIP: 0033:0x446c69 [ 637.405823][ T1644] RSP: 002b:00007f96da049da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 637.424439][ T1644] RAX: fffffffffffffe00 RBX: 00000000006dbc58 RCX: 0000000000446c69 [ 637.456556][ T1644] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc58 [ 637.465275][ T1644] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 executing program executing program executing program [ 637.519227][ T1644] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c [ 637.528740][ T1644] R13: 0000000000000004 R14: 00007f96da04a9c0 R15: 000000000000002d [ 637.541695][ T1644] INFO: task syz-executor136:9685 blocked for more than 143 seconds. [ 637.562056][ T1644] Not tainted 5.10.0-rc4-next-20201123-syzkaller #0 [ 637.570517][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 637.607034][ T1644] task:syz-executor136 state:D stack:28712 pid: 9685 ppid: 8502 flags:0x00004000 executing program executing program executing program [ 637.627381][ T1644] Call Trace: [ 637.630733][ T1644] __schedule+0x896/0x2050 [ 637.639438][ T1644] ? io_schedule_timeout+0x140/0x140 [ 637.649544][ T1644] ? lockdep_hardirqs_on+0x79/0x100 [ 637.655568][ T1644] ? _raw_spin_unlock_irq+0x2a/0x40 executing program [ 637.696967][ T1644] schedule+0xcf/0x270 [ 637.701547][ T1644] __io_uring_files_cancel+0xc4d/0x14b0 [ 637.735408][ T1644] ? __io_uring_free+0x1d0/0x1d0 [ 637.742061][ T1644] ? exit_sem+0x112/0x1e80 executing program executing program [ 637.748871][ T1644] ? find_held_lock+0x2d/0x110 [ 637.754106][ T1644] ? add_wait_queue+0x150/0x150 [ 637.764502][ T1644] ? copy_semundo+0x2f0/0x2f0 [ 637.772276][ T1644] exit_files+0xe4/0x170 [ 637.777341][ T1644] do_exit+0xb61/0x29f0 [ 637.783440][ T1644] ? find_held_lock+0x2d/0x110 [ 637.790053][ T1644] ? mm_update_next_owner+0x7a0/0x7a0 [ 637.795475][ T1644] ? get_signal+0x2f6/0x2010 [ 637.801616][ T1644] ? lock_downgrade+0x6d0/0x6d0 [ 637.807046][ T1644] do_group_exit+0x125/0x310 [ 637.811674][ T1644] get_signal+0x3ec/0x2010 [ 637.818840][ T1644] ? futex_exit_release+0x220/0x220 [ 637.828653][ T1644] ? populate_vma_page_range+0x380/0x380 [ 637.835157][ T1644] ? do_mmap+0x616/0x11d0 [ 637.840450][ T1644] arch_do_signal_or_restart+0x2a8/0x1eb0 executing program executing program executing program [ 637.847781][ T1644] ? vm_mmap_pgoff+0xe8/0x200 [ 637.852688][ T1644] ? randomize_stack_top+0x100/0x100 [ 637.861367][ T1644] ? copy_siginfo_to_user32+0xa0/0xa0 [ 637.872117][ T1644] ? __do_sys_futex+0x2a2/0x470 [ 637.878200][ T1644] ? do_futex+0x1a60/0x1a60 [ 637.883568][ T1644] exit_to_user_mode_prepare+0x124/0x200 [ 637.890741][ T1644] syscall_exit_to_user_mode+0x36/0x260 [ 637.896972][ T1644] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 637.903357][ T1644] RIP: 0033:0x446c69 [ 637.926696][ T1644] RSP: 002b:00007f96da049da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca executing program [ 637.946019][ T1644] RAX: fffffffffffffe00 RBX: 00000000006dbc58 RCX: 0000000000446c69 [ 637.955865][ T1644] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc58 [ 637.965966][ T1644] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 637.976420][ T1644] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c [ 637.986521][ T1644] R13: 0000000000000004 R14: 00007f96da04a9c0 R15: 000000000000002d [ 637.998443][ T1644] executing program executing program [ 637.998443][ T1644] Showing all locks held in the system: [ 638.012745][ T1644] 2 locks held by kworker/u4:3/102: [ 638.030140][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.047075][ T1644] #1: ffff8880b9f20088 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x305/0x440 [ 638.059721][ T1644] 1 lock held by khungtaskd/1644: [ 638.064958][ T1644] #0: ffffffff8b339e60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 638.076490][ T1644] 1 lock held by in:imklog/8173: [ 638.081691][ T1644] #0: ffff8880209594f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 executing program executing program executing program [ 638.112348][ T1644] 2 locks held by kworker/u4:0/8560: [ 638.127068][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.142213][ T1644] #1: ffffc900018efda8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 executing program [ 638.161999][ T1644] 2 locks held by kworker/u4:11/28297: [ 638.168763][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.180515][ T1644] #1: ffffc90003797da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 executing program executing program [ 638.246699][ T1644] 2 locks held by kworker/u4:13/28309: [ 638.252641][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.272550][ T1644] #1: ffffc900037b7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.285661][ T1644] 2 locks held by kworker/u4:15/28331: executing program [ 638.291933][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 executing program executing program [ 638.345532][ T1644] #1: ffffc90003567da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.361668][ T1644] 2 locks held by kworker/u4:16/28341: [ 638.370252][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.383598][ T1644] #1: ffffc90003987da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 executing program [ 638.396675][ T1644] 2 locks held by kworker/u4:17/28345: [ 638.402245][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.414422][ T1644] #1: ffffc900038f7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.427900][ T1644] 2 locks held by kworker/u4:18/28349: [ 638.433546][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 executing program executing program [ 638.449049][ T1644] #1: ffffc900039b7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.461916][ T1644] 2 locks held by kworker/u4:19/28360: [ 638.468488][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 executing program [ 638.503589][ T1644] #1: ffffc900038e7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.515509][ T1644] 2 locks held by kworker/u4:20/28362: [ 638.521639][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 638.533129][ T1644] #1: ffffc900039d7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.544994][ T1644] 2 locks held by kworker/u4:21/28363: executing program [ 638.576095][ T1644] #0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 executing program executing program [ 638.625642][ T1644] #1: ffffc90003787da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 638.639247][ T1644] 3 locks held by syz-executor136/28466: [ 638.653952][ T1644] [ 638.660031][ T1644] ============================================= [ 638.660031][ T1644] [ 638.671014][ T1644] NMI backtrace for cpu 1 [ 638.675582][ T1644] CPU: 1 PID: 1644 Comm: khungtaskd Not tainted 5.10.0-rc4-next-20201123-syzkaller #0 [ 638.685311][ T1644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 638.695818][ T1644] Call Trace: [ 638.699181][ T1644] dump_stack+0x107/0x163 [ 638.703529][ T1644] nmi_cpu_backtrace.cold+0x44/0xd7 [ 638.708795][ T1644] ? lapic_can_unplug_cpu+0x80/0x80 [ 638.714158][ T1644] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 638.720277][ T1644] watchdog+0xd89/0xf30 executing program [ 638.724631][ T1644] ? trace_sched_process_hang+0x280/0x280 [ 638.730813][ T1644] kthread+0x3b1/0x4a0 [ 638.734890][ T1644] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 638.742439][ T1644] ret_from_fork+0x1f/0x30 [ 638.747435][ T1644] Sending NMI from CPU 1 to CPUs 0: [ 638.753205][ C0] NMI backtrace for cpu 0 [ 638.753214][ C0] CPU: 0 PID: 28469 Comm: io_wqe_worker-0 Not tainted 5.10.0-rc4-next-20201123-syzkaller #0 executing program executing program executing program [ 638.753221][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 638.753225][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 [ 638.753237][ C0] Code: fc ff ff 48 c7 c7 c0 01 39 8b 48 89 54 24 08 48 89 34 24 e8 d2 7a 60 02 48 8b 54 24 08 48 8b 34 24 e9 a1 fd ff ff 0f 1f 40 00 <65> 48 8b 14 25 00 f0 01 00 65 8b 05 90 64 91 7e a9 00 01 ff 00 48 [ 638.753242][ C0] RSP: 0018:ffffc90003e3fc48 EFLAGS: 00000046 [ 638.753252][ C0] RAX: 0000000000000000 RBX: ffffc90003e3fd58 RCX: ffffffff81600e1b [ 638.753257][ C0] RDX: 0000000000000000 RSI: ffff888147e63580 RDI: 0000000000000001 [ 638.753263][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8ced564f [ 638.753269][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 638.753274][ C0] R13: ffffc90003e3fd60 R14: 0000000000000293 R15: ffff888147e1c800 [ 638.753280][ C0] FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 638.753285][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 638.753291][ C0] CR2: 000000002001d06c CR3: 0000000013499000 CR4: 00000000001506f0 executing program executing program executing program [ 638.753296][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 638.753302][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 638.753305][ C0] Call Trace: [ 638.753308][ C0] detach_if_pending+0xee/0x470 [ 638.753312][ C0] try_to_del_timer_sync+0xaa/0x110 [ 638.753316][ C0] ? del_timer+0x110/0x110 [ 638.753320][ C0] ? del_timer_sync+0x12e/0x160 [ 638.753323][ C0] del_timer_sync+0xf5/0x160 [ 638.753327][ C0] schedule_timeout+0x150/0x250 [ 638.753331][ C0] ? usleep_range+0x170/0x170 [ 638.753335][ C0] ? io_wqe_worker+0x527/0x10e0 [ 638.753339][ C0] ? __next_timer_interrupt+0x210/0x210 [ 638.753343][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 638.753347][ C0] io_wqe_worker+0x5b4/0x10e0 [ 638.753351][ C0] ? io_worker_handle_work+0x1b50/0x1b50 [ 638.753355][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 638.753359][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 638.753363][ C0] ? io_worker_handle_work+0x1b50/0x1b50 [ 638.753366][ C0] kthread+0x3b1/0x4a0 executing program executing program executing program [ 638.753371][ C0] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 638.753374][ C0] ret_from_fork+0x1f/0x30 [ 638.782743][ T1644] Kernel panic - not syncing: hung_task: blocked tasks [ 638.994571][ T1644] CPU: 1 PID: 1644 Comm: khungtaskd Not tainted 5.10.0-rc4-next-20201123-syzkaller #0 [ 639.004117][ T1644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 639.014205][ T1644] Call Trace: [ 639.017511][ T1644] dump_stack+0x107/0x163 [ 639.021925][ T1644] panic+0x306/0x73d executing program [ 639.025835][ T1644] ? __warn_printk+0xf3/0xf3 [ 639.030621][ T1644] ? lapic_can_unplug_cpu+0x80/0x80 [ 639.036001][ T1644] ? preempt_schedule_thunk+0x16/0x18 [ 639.041413][ T1644] ? watchdog.cold+0x22d/0x248 [ 639.046196][ T1644] ? watchdog+0xc59/0xf30 [ 639.050539][ T1644] watchdog.cold+0x23e/0x248 [ 639.055224][ T1644] ? trace_sched_process_hang+0x280/0x280 [ 639.060953][ T1644] kthread+0x3b1/0x4a0 [ 639.065552][ T1644] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 639.071461][ T1644] ret_from_fork+0x1f/0x30 [ 639.076990][ T1644] Kernel Offset: disabled [ 639.081508][ T1644] Rebooting in 86400 seconds..