[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 48.596006][ T26] audit: type=1800 audit(1566030593.226:25): pid=8171 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 48.641310][ T26] audit: type=1800 audit(1566030593.226:26): pid=8171 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 48.697991][ T26] audit: type=1800 audit(1566030593.236:27): pid=8171 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.140' (ECDSA) to the list of known hosts. syzkaller login: [ 788.790703][ T8335] IPVS: ftp: loaded support on port[0] = 21 [ 788.800156][ T8334] IPVS: ftp: loaded support on port[0] = 21 [ 788.809721][ T8333] IPVS: ftp: loaded support on port[0] = 21 [ 788.818066][ T8331] IPVS: ftp: loaded support on port[0] = 21 [ 788.826041][ T8336] IPVS: ftp: loaded support on port[0] = 21 [ 788.836013][ T8332] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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 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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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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 945.822708][ T1063] INFO: task syz-executor593:8493 blocked for more than 143 seconds. [ 945.831057][ T1063] Not tainted 5.3.0-rc4-next-20190816 #67 [ 945.837972][ T1063] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 945.846918][ T1063] syz-executor593 D26416 8493 8335 0x80000000 [ 945.853700][ T1063] Call Trace: [ 945.857072][ T1063] __schedule+0x76e/0x17d0 [ 945.861614][ T1063] ? __sched_text_start+0x8/0x8 [ 945.866825][ T1063] ? __kasan_check_read+0x11/0x20 [ 945.872027][ T1063] ? __lock_acquire+0x1703/0x4e70 [ 945.877443][ T1063] schedule+0xa8/0x270 [ 945.881638][ T1063] schedule_timeout+0x717/0xc50 [ 945.886526][ T1063] ? find_held_lock+0x35/0x130 [ 945.891272][ T1063] ? usleep_range+0x170/0x170 [ 945.895994][ T1063] ? lock_downgrade+0x920/0x920 [ 945.900955][ T1063] ? _raw_spin_unlock_irq+0x28/0x90 [ 945.906231][ T1063] ? wait_for_completion+0x294/0x440 [ 945.911498][ T1063] ? _raw_spin_unlock_irq+0x28/0x90 [ 945.917152][ T1063] ? lockdep_hardirqs_on+0x418/0x5d0 [ 945.922470][ T1063] ? trace_hardirqs_on+0x67/0x240 [ 945.927515][ T1063] ? __kasan_check_read+0x11/0x20 [ 945.932681][ T1063] wait_for_completion+0x29c/0x440 [ 945.938201][ T1063] ? wait_for_completion_interruptible+0x470/0x470 [ 945.945093][ T1063] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 945.951081][ T1063] ? wake_up_q+0xf0/0xf0 [ 945.955393][ T1063] ? kill_ioctx+0x1e4/0x2d0 [ 945.959876][ T1063] exit_aio+0x321/0x3a0 [ 945.964086][ T1063] ? ioctx_alloc+0x1dc0/0x1dc0 [ 945.968833][ T1063] ? mutex_unlock+0xd/0x10 [ 945.973274][ T1063] mmput+0xcf/0x4d0 [ 945.977324][ T1063] do_exit+0x84e/0x2e50 [ 945.981467][ T1063] ? mm_update_next_owner+0x640/0x640 [ 945.987399][ T1063] ? down_read_non_owner+0x490/0x490 [ 945.992859][ T1063] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 945.999229][ T1063] ? handle_mm_fault+0x1d3/0x6b0 [ 946.004375][ T1063] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 946.009836][ T1063] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 946.015483][ T1063] do_group_exit+0x135/0x360 [ 946.020818][ T1063] __x64_sys_exit_group+0x44/0x50 [ 946.025911][ T1063] do_syscall_64+0xfa/0x760 [ 946.030674][ T1063] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.036599][ T1063] RIP: 0033:0x440808 [ 946.040572][ T1063] Code: 69 67 75 72 65 64 20 74 6f 20 25 64 20 5b 2d 67 20 25 73 5d 20 2d 20 63 68 61 6e 67 69 6e 67 20 74 6f 20 31 2e 0a 00 00 00 00 <72> 73 79 73 6c 6f 67 64 3a 20 49 6e 76 61 6c 69 64 20 2d 74 20 25 [ 946.061087][ T1063] RSP: 002b:00007ffefa57cd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 946.069793][ T1063] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808 [ 946.078060][ T1063] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 946.086180][ T1063] RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 946.094349][ T1063] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 946.102588][ T1063] R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000 [ 946.110569][ T1063] INFO: task syz-executor593:8591 blocked for more than 143 seconds. [ 946.119060][ T1063] Not tainted 5.3.0-rc4-next-20190816 #67 [ 946.125484][ T1063] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 946.134427][ T1063] syz-executor593 D26152 8591 8332 0x80000000 [ 946.140736][ T1063] Call Trace: [ 946.144043][ T1063] __schedule+0x76e/0x17d0 [ 946.148719][ T1063] ? __sched_text_start+0x8/0x8 [ 946.153747][ T1063] ? __kasan_check_read+0x11/0x20 [ 946.158756][ T1063] ? __lock_acquire+0x1703/0x4e70 [ 946.163985][ T1063] schedule+0xa8/0x270 [ 946.168199][ T1063] schedule_timeout+0x717/0xc50 [ 946.173230][ T1063] ? find_held_lock+0x35/0x130 [ 946.177971][ T1063] ? usleep_range+0x170/0x170 [ 946.182655][ T1063] ? lock_downgrade+0x920/0x920 [ 946.187729][ T1063] ? _raw_spin_unlock_irq+0x28/0x90 [ 946.192953][ T1063] ? wait_for_completion+0x294/0x440 [ 946.198213][ T1063] ? _raw_spin_unlock_irq+0x28/0x90 [ 946.203417][ T1063] ? lockdep_hardirqs_on+0x418/0x5d0 [ 946.208684][ T1063] ? trace_hardirqs_on+0x67/0x240 [ 946.213733][ T1063] ? __kasan_check_read+0x11/0x20 [ 946.218737][ T1063] wait_for_completion+0x29c/0x440 [ 946.223996][ T1063] ? wait_for_completion_interruptible+0x470/0x470 [ 946.230475][ T1063] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 946.236293][ T1063] ? wake_up_q+0xf0/0xf0 [ 946.240506][ T1063] ? kill_ioctx+0x1e4/0x2d0 [ 946.245697][ T1063] exit_aio+0x321/0x3a0 [ 946.249837][ T1063] ? ioctx_alloc+0x1dc0/0x1dc0 [ 946.254616][ T1063] ? mutex_unlock+0xd/0x10 [ 946.259008][ T1063] mmput+0xcf/0x4d0 [ 946.262819][ T1063] do_exit+0x84e/0x2e50 [ 946.266967][ T1063] ? mm_update_next_owner+0x640/0x640 [ 946.272316][ T1063] ? down_read_non_owner+0x490/0x490 [ 946.277669][ T1063] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 946.284452][ T1063] ? handle_mm_fault+0x1d3/0x6b0 [ 946.289363][ T1063] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 946.295022][ T1063] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 946.300749][ T1063] do_group_exit+0x135/0x360 [ 946.305561][ T1063] __x64_sys_exit_group+0x44/0x50 [ 946.310702][ T1063] do_syscall_64+0xfa/0x760 [ 946.315534][ T1063] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.321627][ T1063] RIP: 0033:0x440808 [ 946.326064][ T1063] Code: 69 67 75 72 65 64 20 74 6f 20 25 64 20 5b 2d 67 20 25 73 5d 20 2d 20 63 68 61 6e 67 69 6e 67 20 74 6f 20 31 2e 0a 00 00 00 00 <72> 73 79 73 6c 6f 67 64 3a 20 49 6e 76 61 6c 69 64 20 2d 74 20 25 [ 946.346464][ T1063] RSP: 002b:00007ffefa57cd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 946.355238][ T1063] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808 [ 946.363546][ T1063] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 executing program [ 946.372039][ T1063] RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 946.380458][ T1063] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 946.388622][ T1063] R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000 [ 946.396651][ T1063] INFO: task syz-executor593:8810 blocked for more than 143 seconds. [ 946.404806][ T1063] Not tainted 5.3.0-rc4-next-20190816 #67 [ 946.411021][ T1063] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 946.419948][ T1063] syz-executor593 D26048 8810 8331 0x80000000 [ 946.426595][ T1063] Call Trace: [ 946.429878][ T1063] __schedule+0x76e/0x17d0 [ 946.434327][ T1063] ? __sched_text_start+0x8/0x8 [ 946.439168][ T1063] ? __kasan_check_read+0x11/0x20 [ 946.444235][ T1063] ? __lock_acquire+0x1703/0x4e70 [ 946.449243][ T1063] schedule+0xa8/0x270 [ 946.453482][ T1063] schedule_timeout+0x717/0xc50 [ 946.458304][ T1063] ? find_held_lock+0x35/0x130 [ 946.463323][ T1063] ? usleep_range+0x170/0x170 [ 946.468244][ T1063] ? lock_downgrade+0x920/0x920 [ 946.473291][ T1063] ? _raw_spin_unlock_irq+0x28/0x90 [ 946.478504][ T1063] ? wait_for_completion+0x294/0x440 [ 946.483985][ T1063] ? _raw_spin_unlock_irq+0x28/0x90 [ 946.489162][ T1063] ? lockdep_hardirqs_on+0x418/0x5d0 [ 946.494656][ T1063] ? trace_hardirqs_on+0x67/0x240 [ 946.499680][ T1063] ? __kasan_check_read+0x11/0x20 [ 946.505333][ T1063] wait_for_completion+0x29c/0x440 [ 946.510429][ T1063] ? wait_for_completion_interruptible+0x470/0x470 [ 946.517341][ T1063] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 946.523296][ T1063] ? wake_up_q+0xf0/0xf0 [ 946.527644][ T1063] ? kill_ioctx+0x1e4/0x2d0 [ 946.532168][ T1063] exit_aio+0x321/0x3a0 [ 946.536354][ T1063] ? ioctx_alloc+0x1dc0/0x1dc0 [ 946.541268][ T1063] ? mutex_unlock+0xd/0x10 [ 946.545890][ T1063] mmput+0xcf/0x4d0 [ 946.549681][ T1063] do_exit+0x84e/0x2e50 [ 946.553852][ T1063] ? mm_update_next_owner+0x640/0x640 [ 946.559338][ T1063] ? down_read_non_owner+0x490/0x490 [ 946.565198][ T1063] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 946.571424][ T1063] ? handle_mm_fault+0x1d3/0x6b0 [ 946.576524][ T1063] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 946.581959][ T1063] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 946.587452][ T1063] do_group_exit+0x135/0x360 [ 946.592154][ T1063] __x64_sys_exit_group+0x44/0x50 [ 946.597461][ T1063] do_syscall_64+0xfa/0x760 [ 946.601959][ T1063] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.608139][ T1063] RIP: 0033:0x440808 [ 946.612151][ T1063] Code: Bad RIP value. [ 946.616231][ T1063] RSP: 002b:00007ffefa57cd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 946.624686][ T1063] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808 [ 946.633226][ T1063] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 946.641311][ T1063] RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 946.649443][ T1063] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 946.657687][ T1063] R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000 [ 946.665733][ T1063] [ 946.665733][ T1063] Showing all locks held in the system: [ 946.673707][ T1063] 1 lock held by khungtaskd/1063: [ 946.678708][ T1063] #0: ffffffff88fa9a80 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 946.688362][ T1063] 2 locks held by rsyslogd/8209: [ 946.693495][ T1063] #0: ffff8880a79dae20 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 946.702400][ T1063] #1: ffff8880ae834818 (&rq->lock){-.-.}, at: __schedule+0x1ff/0x17d0 [ 946.710997][ T1063] 2 locks held by getty/8299: [ 946.715820][ T1063] #0: ffff888092ad0bd0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 946.724903][ T1063] #1: ffffc90005f1d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.734816][ T1063] 2 locks held by getty/8300: [ 946.739463][ T1063] #0: ffff888095efa3d0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 946.748846][ T1063] #1: ffffc90005f292e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.758706][ T1063] 2 locks held by getty/8301: [ 946.763799][ T1063] #0: ffff888092067610 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 946.773049][ T1063] #1: ffffc90005f432e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.782617][ T1063] 2 locks held by getty/8302: [ 946.787270][ T1063] #0: ffff8880925c6d50 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 946.796366][ T1063] #1: ffffc90005f392e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.805983][ T1063] 2 locks held by getty/8303: [ 946.810628][ T1063] #0: ffff8880907e2ed0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 946.819840][ T1063] #1: ffffc90005f212e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.829694][ T1063] 2 locks held by getty/8304: [ 946.835201][ T1063] #0: ffff8880925c64d0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 946.844428][ T1063] #1: ffffc90005f3f2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.854598][ T1063] 2 locks held by getty/8305: [ 946.859269][ T1063] #0: ffff88808f0b8190 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 executing program [ 946.868314][ T1063] #1: ffffc90005f112e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 [ 946.878484][ T1063] [ 946.880788][ T1063] ============================================= [ 946.880788][ T1063] [ 946.889398][ T1063] NMI backtrace for cpu 1 [ 946.893772][ T1063] CPU: 1 PID: 1063 Comm: khungtaskd Not tainted 5.3.0-rc4-next-20190816 #67 [ 946.902408][ T1063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 946.912438][ T1063] Call Trace: [ 946.915795][ T1063] dump_stack+0x172/0x1f0 [ 946.920116][ T1063] nmi_cpu_backtrace.cold+0x70/0xb2 [ 946.925299][ T1063] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 946.931588][ T1063] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 946.937467][ T1063] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 946.943571][ T1063] arch_trigger_cpumask_backtrace+0x14/0x20 [ 946.949580][ T1063] watchdog+0xc99/0x1360 [ 946.953839][ T1063] kthread+0x361/0x430 [ 946.957878][ T1063] ? reset_hung_task_detector+0x30/0x30 [ 946.963398][ T1063] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 946.969763][ T1063] ret_from_fork+0x24/0x30 executing program [ 946.974312][ T1063] Sending NMI from CPU 1 to CPUs 0: [ 946.979947][ C0] NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 [ 946.982971][ T1063] Kernel panic - not syncing: hung_task: blocked tasks [ 946.995019][ T1063] CPU: 1 PID: 1063 Comm: khungtaskd Not tainted 5.3.0-rc4-next-20190816 #67 [ 947.003662][ T1063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 947.013687][ T1063] Call Trace: [ 947.016949][ T1063] dump_stack+0x172/0x1f0 [ 947.021256][ T1063] panic+0x2dc/0x755 [ 947.025126][ T1063] ? add_taint.cold+0x16/0x16 [ 947.029777][ T1063] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 947.035405][ T1063] ? ___preempt_schedule+0x16/0x20 [ 947.040513][ T1063] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 947.046658][ T1063] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 947.052791][ T1063] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 947.059075][ T1063] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 947.065217][ T1063] watchdog+0xcaa/0x1360 [ 947.069442][ T1063] kthread+0x361/0x430 [ 947.073487][ T1063] ? reset_hung_task_detector+0x30/0x30 [ 947.079095][ T1063] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 947.085311][ T1063] ret_from_fork+0x24/0x30 [ 947.090960][ T1063] Kernel Offset: disabled [ 947.095287][ T1063] Rebooting in 86400 seconds..