[ 89.259250][ T27] audit: type=1800 audit(1580812660.173:26): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 90.291721][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 90.291733][ T27] audit: type=1800 audit(1580812661.213:29): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 90.318693][ T27] audit: type=1800 audit(1580812661.223:30): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.15' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 464.807617][ T9982] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.810063][ T9981] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.816007][ T9974] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.832546][ T9984] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.834688][ T9986] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.844717][ T9983] xt_CT: You must specify a L4 protocol and not use inversions on it executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 464.865140][ T9991] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.865175][ T9989] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.877588][ T9992] xt_CT: You must specify a L4 protocol and not use inversions on it [ 464.899133][ T9995] xt_CT: You must specify a L4 protocol and not use inversions on it [ 616.762888][ T1106] INFO: task syz-executor115:9995 blocked for more than 143 seconds. [ 616.771195][ T1106] Not tainted 5.5.0-syzkaller #0 [ 616.777793][ T1106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 616.787635][ T1106] syz-executor115 D28240 9995 9972 0x00004004 [ 616.794667][ T1106] Call Trace: [ 616.798089][ T1106] __schedule+0x934/0x1f90 [ 616.802527][ T1106] ? __sched_text_start+0x8/0x8 [ 616.807751][ T1106] ? __lock_acquire+0x29c9/0x4a00 [ 616.813024][ T1106] schedule+0xdc/0x2b0 [ 616.817168][ T1106] schedule_timeout+0x717/0xc50 [ 616.822193][ T1106] ? __kasan_check_read+0x11/0x20 [ 616.827502][ T1106] ? usleep_range+0x170/0x170 [ 616.832205][ T1106] ? mark_held_locks+0xa4/0xf0 [ 616.837223][ T1106] ? _raw_spin_unlock_irq+0x23/0x80 [ 616.842435][ T1106] ? wait_for_completion+0x294/0x440 [ 616.847928][ T1106] ? _raw_spin_unlock_irq+0x23/0x80 [ 616.853315][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 616.858678][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 616.863938][ T1106] wait_for_completion+0x29c/0x440 [ 616.869073][ T1106] ? wait_for_completion_interruptible+0x470/0x470 [ 616.875882][ T1106] ? wake_up_q+0x140/0x140 [ 616.880313][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 616.885819][ T1106] ? __kasan_check_read+0x11/0x20 [ 616.890972][ T1106] __flush_work+0x4fe/0xa50 [ 616.895716][ T1106] ? queue_delayed_work_on+0x210/0x210 [ 616.901210][ T1106] ? init_pwq+0x360/0x360 [ 616.905781][ T1106] ? __cancel_work_timer+0xc4/0x540 [ 616.910981][ T1106] ? __cancel_work_timer+0x1e0/0x540 [ 616.917385][ T1106] ? cancel_delayed_work_sync+0x1b/0x20 [ 616.923159][ T1106] ? __cancel_work_timer+0x1e0/0x540 [ 616.928458][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 616.933948][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 616.939007][ T1106] __cancel_work_timer+0x3d9/0x540 [ 616.944352][ T1106] ? mutex_trylock+0x2d0/0x2d0 [ 616.949132][ T1106] ? mod_delayed_work_on+0x200/0x200 [ 616.954825][ T1106] ? __kasan_check_write+0x14/0x20 [ 616.960055][ T1106] ? xt_ct_tg_check_v1+0x7c/0xa0 [ 616.965233][ T1106] ? xt_ct_tg_check_v2+0xa0/0xa0 [ 616.970260][ T1106] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 616.976716][ T1106] cancel_delayed_work_sync+0x1b/0x20 [ 616.982166][ T1106] htable_put+0x15f/0x220 [ 616.986703][ T1106] ? htable_put+0x220/0x220 [ 616.991226][ T1106] hashlimit_mt_destroy+0x56/0x70 [ 616.996592][ T1106] cleanup_match+0xde/0x170 [ 617.001125][ T1106] ? icmp_checkentry+0xa0/0xa0 [ 617.006145][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 617.012436][ T1106] find_check_entry.isra.0+0x454/0x920 [ 617.018136][ T1106] ? ipt_do_table+0x1b80/0x1b80 [ 617.023188][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 617.028587][ T1106] ? kvfree+0x4a/0x60 [ 617.032594][ T1106] translate_table+0xcb4/0x17d0 [ 617.037794][ T1106] ? compat_do_ipt_get_ctl+0x910/0x910 [ 617.044410][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 617.050728][ T1106] ? _copy_from_user+0x12c/0x1a0 [ 617.055860][ T1106] do_ipt_set_ctl+0x2fe/0x4c2 [ 617.060565][ T1106] ? compat_do_ipt_set_ctl+0x170/0x170 [ 617.066265][ T1106] ? mutex_unlock+0xd/0x10 [ 617.070764][ T1106] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 617.076948][ T1106] nf_setsockopt+0x77/0xd0 [ 617.081401][ T1106] ip_setsockopt+0xdf/0x100 [ 617.086089][ T1106] tcp_setsockopt+0x8f/0xe0 [ 617.090683][ T1106] sock_common_setsockopt+0x94/0xd0 [ 617.096092][ T1106] __sys_setsockopt+0x261/0x4c0 [ 617.100959][ T1106] ? sock_create_kern+0x50/0x50 [ 617.106022][ T1106] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 617.111623][ T1106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 617.117260][ T1106] ? do_syscall_64+0x26/0x790 [ 617.121946][ T1106] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 617.128265][ T1106] ? do_syscall_64+0x26/0x790 [ 617.133261][ T1106] __x64_sys_setsockopt+0xbe/0x150 [ 617.138397][ T1106] do_syscall_64+0xfa/0x790 [ 617.143129][ T1106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 617.149029][ T1106] RIP: 0033:0x447209 [ 617.153135][ T1106] Code: 6c 64 0a 00 74 72 79 69 6e 67 20 74 6f 20 64 65 6c 65 74 65 20 61 70 63 20 25 6c 64 0a 00 73 6f 6d 65 74 68 69 6e 67 00 61 70 <63> 2e 63 00 61 70 63 00 00 00 00 00 00 00 00 41 50 43 20 6d 6f 64 [ 617.174098][ T1106] RSP: 002b:00007f6e61089d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 617.182601][ T1106] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000447209 [ 617.190825][ T1106] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 617.199081][ T1106] RBP: 00000000006dbc20 R08: 00000000000003e0 R09: 0000000000000000 [ 617.207262][ T1106] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 617.215544][ T1106] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000776172 [ 617.223793][ T1106] INFO: task syz-executor115:10006 blocked for more than 143 seconds. [ 617.231954][ T1106] Not tainted 5.5.0-syzkaller #0 [ 617.237704][ T1106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 617.246692][ T1106] syz-executor115 D28840 10006 9973 0x00000004 [ 617.253278][ T1106] Call Trace: [ 617.256588][ T1106] __schedule+0x934/0x1f90 [ 617.261033][ T1106] ? __sched_text_start+0x8/0x8 [ 617.266137][ T1106] ? lock_downgrade+0x920/0x920 [ 617.271000][ T1106] ? rwlock_bug.part.0+0x90/0x90 [ 617.276196][ T1106] schedule+0xdc/0x2b0 [ 617.280413][ T1106] schedule_preempt_disabled+0x13/0x20 [ 617.286135][ T1106] __mutex_lock+0x7ab/0x13c0 [ 617.290742][ T1106] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 617.297488][ T1106] ? mutex_trylock+0x2d0/0x2d0 [ 617.302343][ T1106] ? find_held_lock+0x35/0x130 [ 617.308267][ T1106] ? xt_find_match+0x1e8/0x280 [ 617.313268][ T1106] mutex_lock_nested+0x16/0x20 [ 617.318051][ T1106] ? mutex_lock_nested+0x16/0x20 [ 617.323190][ T1106] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 617.329562][ T1106] hashlimit_mt_check+0xa4/0xd0 [ 617.334672][ T1106] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 617.341279][ T1106] xt_check_match+0x280/0x690 [ 617.346203][ T1106] ? xt_check_target+0x690/0x690 [ 617.351154][ T1106] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 617.357805][ T1106] ? mutex_unlock+0xd/0x10 [ 617.362232][ T1106] ? xt_find_match+0x73/0x280 [ 617.367103][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 617.373645][ T1106] find_check_entry.isra.0+0x32f/0x920 [ 617.379164][ T1106] ? ipt_do_table+0x1b80/0x1b80 [ 617.384424][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 617.389716][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 617.394994][ T1106] ? kvfree+0x4a/0x60 [ 617.399133][ T1106] translate_table+0xcb4/0x17d0 [ 617.404233][ T1106] ? compat_do_ipt_get_ctl+0x910/0x910 [ 617.409711][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 617.416179][ T1106] ? _copy_from_user+0x12c/0x1a0 [ 617.421133][ T1106] do_ipt_set_ctl+0x2fe/0x4c2 [ 617.425982][ T1106] ? compat_do_ipt_set_ctl+0x170/0x170 [ 617.431486][ T1106] ? mutex_unlock+0xd/0x10 [ 617.437067][ T1106] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 617.443344][ T1106] nf_setsockopt+0x77/0xd0 [ 617.447783][ T1106] ip_setsockopt+0xdf/0x100 [ 617.452304][ T1106] tcp_setsockopt+0x8f/0xe0 [ 617.457249][ T1106] sock_common_setsockopt+0x94/0xd0 [ 617.462500][ T1106] __sys_setsockopt+0x261/0x4c0 [ 617.467842][ T1106] ? sock_create_kern+0x50/0x50 [ 617.472876][ T1106] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 617.478464][ T1106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 617.484146][ T1106] ? do_syscall_64+0x26/0x790 [ 617.488838][ T1106] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 617.495169][ T1106] ? do_syscall_64+0x26/0x790 [ 617.499871][ T1106] __x64_sys_setsockopt+0xbe/0x150 [ 617.505209][ T1106] do_syscall_64+0xfa/0x790 [ 617.509737][ T1106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 617.515851][ T1106] RIP: 0033:0x447209 [ 617.519762][ T1106] Code: 6c 64 0a 00 74 72 79 69 6e 67 20 74 6f 20 64 65 6c 65 74 65 20 61 70 63 20 25 6c 64 0a 00 73 6f 6d 65 74 68 69 6e 67 00 61 70 <63> 2e 63 00 61 70 63 00 00 00 00 00 00 00 00 41 50 43 20 6d 6f 64 [ 617.539653][ T1106] RSP: 002b:00007f6e61089d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 617.548324][ T1106] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000447209 [ 617.559245][ T1106] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 617.568349][ T1106] RBP: 00000000006dbc20 R08: 00000000000003e0 R09: 0000000000000000 [ 617.576576][ T1106] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 617.584722][ T1106] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000776172 [ 617.593122][ T1106] INFO: task syz-executor115:10008 blocked for more than 144 seconds. [ 617.601270][ T1106] Not tainted 5.5.0-syzkaller #0 [ 617.607006][ T1106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 617.615914][ T1106] syz-executor115 D28840 10008 9971 0x00000004 [ 617.622253][ T1106] Call Trace: [ 617.625736][ T1106] __schedule+0x934/0x1f90 [ 617.630173][ T1106] ? __sched_text_start+0x8/0x8 [ 617.635254][ T1106] ? lock_downgrade+0x920/0x920 [ 617.640122][ T1106] ? rwlock_bug.part.0+0x90/0x90 [ 617.645324][ T1106] schedule+0xdc/0x2b0 [ 617.649425][ T1106] schedule_preempt_disabled+0x13/0x20 [ 617.655105][ T1106] __mutex_lock+0x7ab/0x13c0 [ 617.659707][ T1106] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 617.666408][ T1106] ? mutex_trylock+0x2d0/0x2d0 [ 617.671231][ T1106] ? find_held_lock+0x35/0x130 [ 617.676248][ T1106] ? xt_find_match+0x1e8/0x280 [ 617.681030][ T1106] mutex_lock_nested+0x16/0x20 [ 617.686019][ T1106] ? mutex_lock_nested+0x16/0x20 [ 617.690964][ T1106] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 617.698547][ T1106] hashlimit_mt_check+0xa4/0xd0 [ 617.703642][ T1106] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 617.710254][ T1106] xt_check_match+0x280/0x690 [ 617.715150][ T1106] ? xt_check_target+0x690/0x690 [ 617.720111][ T1106] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 617.726609][ T1106] ? mutex_unlock+0xd/0x10 [ 617.731030][ T1106] ? xt_find_match+0x73/0x280 [ 617.736049][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 617.742334][ T1106] find_check_entry.isra.0+0x32f/0x920 [ 617.748059][ T1106] ? ipt_do_table+0x1b80/0x1b80 [ 617.753157][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 617.758477][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 617.763773][ T1106] ? kvfree+0x4a/0x60 [ 617.767783][ T1106] translate_table+0xcb4/0x17d0 [ 617.772872][ T1106] ? compat_do_ipt_get_ctl+0x910/0x910 [ 617.778370][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 617.784890][ T1106] ? _copy_from_user+0x12c/0x1a0 [ 617.789845][ T1106] do_ipt_set_ctl+0x2fe/0x4c2 [ 617.794890][ T1106] ? compat_do_ipt_set_ctl+0x170/0x170 [ 617.800381][ T1106] ? mutex_unlock+0xd/0x10 [ 617.805174][ T1106] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 617.811191][ T1106] nf_setsockopt+0x77/0xd0 [ 617.815911][ T1106] ip_setsockopt+0xdf/0x100 [ 617.820442][ T1106] tcp_setsockopt+0x8f/0xe0 [ 617.826130][ T1106] sock_common_setsockopt+0x94/0xd0 [ 617.831364][ T1106] __sys_setsockopt+0x261/0x4c0 [ 617.836493][ T1106] ? sock_create_kern+0x50/0x50 [ 617.841350][ T1106] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 617.847126][ T1106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 617.852622][ T1106] ? do_syscall_64+0x26/0x790 [ 617.857545][ T1106] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 617.863870][ T1106] ? do_syscall_64+0x26/0x790 [ 617.868581][ T1106] __x64_sys_setsockopt+0xbe/0x150 [ 617.873961][ T1106] do_syscall_64+0xfa/0x790 [ 617.878481][ T1106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 617.884564][ T1106] RIP: 0033:0x447209 [ 617.888594][ T1106] Code: 6c 64 0a 00 74 72 79 69 6e 67 20 74 6f 20 64 65 6c 65 74 65 20 61 70 63 20 25 6c 64 0a 00 73 6f 6d 65 74 68 69 6e 67 00 61 70 <63> 2e 63 00 61 70 63 00 00 00 00 00 00 00 00 41 50 43 20 6d 6f 64 [ 617.908537][ T1106] RSP: 002b:00007f6e61089d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 617.917217][ T1106] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000447209 [ 617.925369][ T1106] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 617.933558][ T1106] RBP: 00000000006dbc20 R08: 00000000000003e0 R09: 0000000000000000 [ 617.941542][ T1106] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 617.949778][ T1106] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000776172 [ 617.958984][ T1106] INFO: task syz-executor115:10009 blocked for more than 144 seconds. [ 617.967942][ T1106] Not tainted 5.5.0-syzkaller #0 [ 617.973616][ T1106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 617.982391][ T1106] syz-executor115 D27816 10009 9968 0x00004004 [ 617.989045][ T1106] Call Trace: [ 617.992370][ T1106] __schedule+0x934/0x1f90 [ 617.997031][ T1106] ? __sched_text_start+0x8/0x8 [ 618.001891][ T1106] ? lock_downgrade+0x920/0x920 [ 618.007002][ T1106] ? rwlock_bug.part.0+0x90/0x90 [ 618.012066][ T1106] schedule+0xdc/0x2b0 [ 618.016569][ T1106] schedule_preempt_disabled+0x13/0x20 [ 618.022037][ T1106] __mutex_lock+0x7ab/0x13c0 [ 618.026853][ T1106] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 618.033605][ T1106] ? mutex_trylock+0x2d0/0x2d0 [ 618.038453][ T1106] ? find_held_lock+0x35/0x130 [ 618.043474][ T1106] ? xt_find_match+0x1e8/0x280 [ 618.048254][ T1106] mutex_lock_nested+0x16/0x20 [ 618.053222][ T1106] ? mutex_lock_nested+0x16/0x20 [ 618.058294][ T1106] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 618.064910][ T1106] hashlimit_mt_check+0xa4/0xd0 [ 618.069789][ T1106] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 618.076655][ T1106] xt_check_match+0x280/0x690 [ 618.081350][ T1106] ? xt_check_target+0x690/0x690 [ 618.087409][ T1106] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 618.093962][ T1106] ? mutex_unlock+0xd/0x10 [ 618.098386][ T1106] ? xt_find_match+0x73/0x280 [ 618.103226][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 618.109488][ T1106] find_check_entry.isra.0+0x32f/0x920 [ 618.115162][ T1106] ? ipt_do_table+0x1b80/0x1b80 [ 618.120030][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 618.125503][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 618.130543][ T1106] ? kvfree+0x4a/0x60 [ 618.134718][ T1106] translate_table+0xcb4/0x17d0 [ 618.139618][ T1106] ? compat_do_ipt_get_ctl+0x910/0x910 [ 618.145270][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 618.151537][ T1106] ? _copy_from_user+0x12c/0x1a0 [ 618.156709][ T1106] do_ipt_set_ctl+0x2fe/0x4c2 [ 618.161505][ T1106] ? compat_do_ipt_set_ctl+0x170/0x170 [ 618.167203][ T1106] ? mutex_unlock+0xd/0x10 [ 618.171636][ T1106] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 618.177889][ T1106] nf_setsockopt+0x77/0xd0 [ 618.182320][ T1106] ip_setsockopt+0xdf/0x100 [ 618.187069][ T1106] tcp_setsockopt+0x8f/0xe0 [ 618.191589][ T1106] sock_common_setsockopt+0x94/0xd0 [ 618.197030][ T1106] __sys_setsockopt+0x261/0x4c0 [ 618.201896][ T1106] ? sock_create_kern+0x50/0x50 [ 618.207049][ T1106] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 618.213776][ T1106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 618.219266][ T1106] ? do_syscall_64+0x26/0x790 [ 618.224336][ T1106] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 618.230429][ T1106] ? do_syscall_64+0x26/0x790 [ 618.235338][ T1106] __x64_sys_setsockopt+0xbe/0x150 [ 618.240489][ T1106] do_syscall_64+0xfa/0x790 [ 618.245224][ T1106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 618.251124][ T1106] RIP: 0033:0x447209 [ 618.255219][ T1106] Code: 6c 64 0a 00 74 72 79 69 6e 67 20 74 6f 20 64 65 6c 65 74 65 20 61 70 63 20 25 6c 64 0a 00 73 6f 6d 65 74 68 69 6e 67 00 61 70 <63> 2e 63 00 61 70 63 00 00 00 00 00 00 00 00 41 50 43 20 6d 6f 64 [ 618.275103][ T1106] RSP: 002b:00007f6e61089d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 618.283697][ T1106] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000447209 [ 618.291793][ T1106] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 618.300007][ T1106] RBP: 00000000006dbc20 R08: 00000000000003e0 R09: 0000000000000000 [ 618.308183][ T1106] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 618.316343][ T1106] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000776172 [ 618.324823][ T1106] INFO: task syz-executor115:10011 blocked for more than 144 seconds. [ 618.333166][ T1106] Not tainted 5.5.0-syzkaller #0 [ 618.338730][ T1106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 618.348547][ T1106] syz-executor115 D28840 10011 9967 0x00000004 [ 618.355203][ T1106] Call Trace: [ 618.358634][ T1106] __schedule+0x934/0x1f90 [ 618.363277][ T1106] ? __sched_text_start+0x8/0x8 [ 618.368265][ T1106] ? lock_downgrade+0x920/0x920 [ 618.373373][ T1106] ? rwlock_bug.part.0+0x90/0x90 [ 618.378442][ T1106] schedule+0xdc/0x2b0 [ 618.382557][ T1106] schedule_preempt_disabled+0x13/0x20 [ 618.388566][ T1106] __mutex_lock+0x7ab/0x13c0 [ 618.393378][ T1106] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 618.399920][ T1106] ? mutex_trylock+0x2d0/0x2d0 [ 618.404955][ T1106] ? find_held_lock+0x35/0x130 [ 618.409738][ T1106] ? xt_find_match+0x1e8/0x280 [ 618.414789][ T1106] mutex_lock_nested+0x16/0x20 [ 618.419569][ T1106] ? mutex_lock_nested+0x16/0x20 [ 618.424768][ T1106] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 618.431254][ T1106] hashlimit_mt_check+0xa4/0xd0 [ 618.436553][ T1106] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 618.443532][ T1106] xt_check_match+0x280/0x690 [ 618.448412][ T1106] ? xt_check_target+0x690/0x690 [ 618.453761][ T1106] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 618.460167][ T1106] ? mutex_unlock+0xd/0x10 [ 618.464985][ T1106] ? xt_find_match+0x73/0x280 [ 618.469983][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 618.477483][ T1106] find_check_entry.isra.0+0x32f/0x920 [ 618.483154][ T1106] ? ipt_do_table+0x1b80/0x1b80 [ 618.488041][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 618.493617][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 618.498668][ T1106] ? kvfree+0x4a/0x60 [ 618.503105][ T1106] translate_table+0xcb4/0x17d0 [ 618.508151][ T1106] ? compat_do_ipt_get_ctl+0x910/0x910 [ 618.513890][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 618.520288][ T1106] ? _copy_from_user+0x12c/0x1a0 [ 618.525526][ T1106] do_ipt_set_ctl+0x2fe/0x4c2 [ 618.530364][ T1106] ? compat_do_ipt_set_ctl+0x170/0x170 [ 618.536108][ T1106] ? mutex_unlock+0xd/0x10 [ 618.540549][ T1106] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 618.546822][ T1106] nf_setsockopt+0x77/0xd0 [ 618.551473][ T1106] ip_setsockopt+0xdf/0x100 [ 618.556259][ T1106] tcp_setsockopt+0x8f/0xe0 [ 618.560992][ T1106] sock_common_setsockopt+0x94/0xd0 [ 618.566469][ T1106] __sys_setsockopt+0x261/0x4c0 [ 618.571377][ T1106] ? sock_create_kern+0x50/0x50 [ 618.576525][ T1106] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 618.582225][ T1106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 618.587979][ T1106] ? do_syscall_64+0x26/0x790 [ 618.592884][ T1106] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 618.598971][ T1106] ? do_syscall_64+0x26/0x790 [ 618.604829][ T1106] __x64_sys_setsockopt+0xbe/0x150 [ 618.609979][ T1106] do_syscall_64+0xfa/0x790 [ 618.614706][ T1106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 618.620616][ T1106] RIP: 0033:0x447209 [ 618.624745][ T1106] Code: 6c 64 0a 00 74 72 79 69 6e 67 20 74 6f 20 64 65 6c 65 74 65 20 61 70 63 20 25 6c 64 0a 00 73 6f 6d 65 74 68 69 6e 67 00 61 70 <63> 2e 63 00 61 70 63 00 00 00 00 00 00 00 00 41 50 43 20 6d 6f 64 [ 618.645084][ T1106] RSP: 002b:00007f6e61089d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 618.653730][ T1106] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000447209 [ 618.661727][ T1106] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 618.670271][ T1106] RBP: 00000000006dbc20 R08: 00000000000003e0 R09: 0000000000000000 [ 618.678587][ T1106] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 618.687061][ T1106] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000776172 [ 618.695261][ T1106] INFO: task syz-executor115:10012 blocked for more than 145 seconds. [ 618.703826][ T1106] Not tainted 5.5.0-syzkaller #0 [ 618.709285][ T1106] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 618.718200][ T1106] syz-executor115 D27968 10012 9970 0x00000004 [ 618.724985][ T1106] Call Trace: [ 618.728299][ T1106] __schedule+0x934/0x1f90 [ 618.733940][ T1106] ? __sched_text_start+0x8/0x8 [ 618.738938][ T1106] ? lock_downgrade+0x920/0x920 [ 618.744031][ T1106] ? rwlock_bug.part.0+0x90/0x90 [ 618.749390][ T1106] schedule+0xdc/0x2b0 [ 618.753759][ T1106] schedule_preempt_disabled+0x13/0x20 [ 618.759233][ T1106] __mutex_lock+0x7ab/0x13c0 [ 618.764172][ T1106] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 618.770860][ T1106] ? mutex_trylock+0x2d0/0x2d0 [ 618.775897][ T1106] ? find_held_lock+0x35/0x130 [ 618.780785][ T1106] ? xt_find_match+0x1e8/0x280 [ 618.785834][ T1106] mutex_lock_nested+0x16/0x20 [ 618.790699][ T1106] ? mutex_lock_nested+0x16/0x20 [ 618.795902][ T1106] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 618.802305][ T1106] hashlimit_mt_check+0xa4/0xd0 [ 618.807546][ T1106] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 618.814583][ T1106] xt_check_match+0x280/0x690 [ 618.819424][ T1106] ? xt_check_target+0x690/0x690 [ 618.825336][ T1106] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 618.831801][ T1106] ? mutex_unlock+0xd/0x10 [ 618.836436][ T1106] ? xt_find_match+0x73/0x280 [ 618.841377][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 618.848099][ T1106] find_check_entry.isra.0+0x32f/0x920 [ 618.854152][ T1106] ? ipt_do_table+0x1b80/0x1b80 [ 618.859296][ T1106] ? lockdep_hardirqs_on+0x421/0x5e0 [ 618.865869][ T1106] ? trace_hardirqs_on+0x67/0x240 [ 618.870946][ T1106] ? kvfree+0x4a/0x60 [ 618.875170][ T1106] translate_table+0xcb4/0x17d0 [ 618.880186][ T1106] ? compat_do_ipt_get_ctl+0x910/0x910 [ 618.886191][ T1106] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 618.892548][ T1106] ? _copy_from_user+0x12c/0x1a0 [ 618.897887][ T1106] do_ipt_set_ctl+0x2fe/0x4c2 [ 618.903518][ T1106] ? compat_do_ipt_set_ctl+0x170/0x170 [ 618.909458][ T1106] ? mutex_unlock+0xd/0x10 [ 618.915184][ T1106] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 618.921198][ T1106] nf_setsockopt+0x77/0xd0 [ 618.926090][ T1106] ip_setsockopt+0xdf/0x100 [ 618.930618][ T1106] tcp_setsockopt+0x8f/0xe0 [ 618.935499][ T1106] sock_common_setsockopt+0x94/0xd0 [ 618.941068][ T1106] __sys_setsockopt+0x261/0x4c0 [ 618.946148][ T1106] ? sock_create_kern+0x50/0x50 [ 618.951335][ T1106] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 618.957178][ T1106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 618.963087][ T1106] ? do_syscall_64+0x26/0x790 [ 618.968423][ T1106] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 618.974944][ T1106] ? do_syscall_64+0x26/0x790 [ 618.979830][ T1106] __x64_sys_setsockopt+0xbe/0x150 [ 618.985176][ T1106] do_syscall_64+0xfa/0x790 [ 618.990356][ T1106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 618.998601][ T1106] RIP: 0033:0x447209 [ 619.002843][ T1106] Code: 6c 64 0a 00 74 72 79 69 6e 67 20 74 6f 20 64 65 6c 65 74 65 20 61 70 63 20 25 6c 64 0a 00 73 6f 6d 65 74 68 69 6e 67 00 61 70 <63> 2e 63 00 61 70 63 00 00 00 00 00 00 00 00 41 50 43 20 6d 6f 64 [ 619.024060][ T1106] RSP: 002b:00007f6e61089d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 619.032971][ T1106] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000447209 [ 619.041160][ T1106] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 619.049421][ T1106] RBP: 00000000006dbc20 R08: 00000000000003e0 R09: 0000000000000000 [ 619.057602][ T1106] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 619.066079][ T1106] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000776172 [ 619.074941][ T1106] [ 619.074941][ T1106] Showing all locks held in the system: [ 619.083249][ T1106] 1 lock held by khungtaskd/1106: [ 619.088394][ T1106] #0: ffffffff89baa840 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 [ 619.097989][ T1106] 2 locks held by kworker/0:10/3223: [ 619.104235][ T1106] 3 locks held by rs:main Q:Reg/9850: [ 619.109619][ T1106] #0: ffff8880ae837558 (&rq->lock){-.-.}, at: __schedule+0x232/0x1f90 [ 619.118236][ T1106] #1: ffff888099ed2428 (sb_writers#3){.+.+}, at: vfs_write+0x485/0x5d0 [ 619.127992][ T1106] #2: ffff888083132508 (&sb->s_type->i_mutex_key#11){+.+.}, at: ext4_buffered_write_iter+0xba/0x460 [ 619.139385][ T1106] 1 lock held by rsyslogd/9852: [ 619.144606][ T1106] #0: ffff888099dc0120 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 619.153691][ T1106] 2 locks held by getty/9942: [ 619.158369][ T1106] #0: ffff888094bbd090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.167597][ T1106] #1: ffffc900058cb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.177626][ T1106] 2 locks held by getty/9943: [ 619.182493][ T1106] #0: ffff88809b720090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.191862][ T1106] #1: ffffc900058db2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.202238][ T1106] 2 locks held by getty/9944: [ 619.207170][ T1106] #0: ffff888092e37090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.216329][ T1106] #1: ffffc900058bb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.226345][ T1106] 2 locks held by getty/9945: [ 619.231236][ T1106] #0: ffff88809b00b090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.240456][ T1106] #1: ffffc9000585b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.250442][ T1106] 2 locks held by getty/9946: [ 619.256403][ T1106] #0: ffff88808fcdf090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.265882][ T1106] #1: ffffc900058ab2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.276294][ T1106] 2 locks held by getty/9947: [ 619.280972][ T1106] #0: ffff8880950c3090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.290240][ T1106] #1: ffffc9000589b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.300536][ T1106] 2 locks held by getty/9948: [ 619.305555][ T1106] #0: ffff88809a7d1090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 619.314909][ T1106] #1: ffffc9000581b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 619.325094][ T1106] 1 lock held by syz-executor115/9995: [ 619.330563][ T1106] #0: ffffffff8a7c46e0 (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 [ 619.339655][ T1106] 1 lock held by syz-executor115/10006: [ 619.345591][ T1106] #0: ffffffff8a7c46e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 619.356783][ T1106] 1 lock held by syz-executor115/10008: [ 619.362333][ T1106] #0: ffffffff8a7c46e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 619.373435][ T1106] 1 lock held by syz-executor115/10009: [ 619.379013][ T1106] #0: ffffffff8a7c46e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 619.391020][ T1106] 1 lock held by syz-executor115/10011: [ 619.396917][ T1106] #0: ffffffff8a7c46e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 619.407953][ T1106] 1 lock held by syz-executor115/10012: [ 619.413702][ T1106] #0: ffffffff8a7c46e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 619.424820][ T1106] [ 619.427154][ T1106] ============================================= [ 619.427154][ T1106] [ 619.435973][ T1106] NMI backtrace for cpu 1 [ 619.440317][ T1106] CPU: 1 PID: 1106 Comm: khungtaskd Not tainted 5.5.0-syzkaller #0 [ 619.448485][ T1106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 619.458689][ T1106] Call Trace: [ 619.462099][ T1106] dump_stack+0x197/0x210 [ 619.466630][ T1106] nmi_cpu_backtrace.cold+0x70/0xb2 [ 619.471897][ T1106] ? vprintk_func+0x86/0x189 [ 619.476739][ T1106] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 619.482389][ T1106] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 619.488396][ T1106] arch_trigger_cpumask_backtrace+0x14/0x20 [ 619.494487][ T1106] watchdog+0xb11/0x10c0 [ 619.498775][ T1106] kthread+0x361/0x430 [ 619.502866][ T1106] ? reset_hung_task_detector+0x30/0x30 [ 619.508440][ T1106] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 619.514184][ T1106] ret_from_fork+0x24/0x30 [ 619.519030][ T1106] Sending NMI from CPU 1 to CPUs 0: [ 619.524620][ C0] NMI backtrace for cpu 0 [ 619.524626][ C0] CPU: 0 PID: 3223 Comm: kworker/0:10 Not tainted 5.5.0-syzkaller #0 [ 619.524633][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 619.524637][ C0] Workqueue: events_power_efficient htable_gc [ 619.524644][ C0] RIP: 0010:match_held_lock+0x12/0x510 [ 619.524657][ C0] Code: 78 02 c9 c3 89 c7 89 45 fc e8 8a e6 ff ff 8b 45 fc c9 c3 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 89 fb 48 83 c7 10 48 89 fa 48 83 ec 08 48 c1 ea [ 619.524661][ C0] RSP: 0018:ffffc90000fe7bf8 EFLAGS: 00000002 [ 619.524669][ C0] RAX: dffffc0000000000 RBX: ffff88809ef38640 RCX: ffff88809ef38ed8 [ 619.524674][ C0] RDX: 1ffff11013de71da RSI: ffffffff89baa7c0 RDI: ffff88809ef38ed8 [ 619.524679][ C0] RBP: ffffc90000fe7c08 R08: 1ffffffff16a137a R09: fffffbfff16a137b [ 619.524685][ C0] R10: fffffbfff16a137a R11: ffffffff8b509bd7 R12: ffffed1013de71da [ 619.524690][ C0] R13: ffff88809ef38ed8 R14: ffffffff89baa7c0 R15: 0000000000000000 [ 619.524696][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 619.524700][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 619.524705][ C0] CR2: 0000000020000000 CR3: 00000000a2a92000 CR4: 00000000001406f0 [ 619.524711][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 619.524716][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 619.524719][ C0] Call Trace: [ 619.524723][ C0] lock_is_held_type+0x1b8/0x320 [ 619.524726][ C0] ___might_sleep+0x205/0x2c0 [ 619.524730][ C0] htable_selective_cleanup+0x245/0x340 [ 619.524739][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 619.524743][ C0] ? trace_hardirqs_on+0x67/0x240 [ 619.524746][ C0] htable_gc+0x21/0xb0 [ 619.524750][ C0] process_one_work+0xa05/0x17a0 [ 619.524754][ C0] ? mark_held_locks+0xf0/0xf0 [ 619.524758][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 619.524761][ C0] ? lock_acquire+0x190/0x410 [ 619.524764][ C0] worker_thread+0x98/0xe40 [ 619.524768][ C0] ? trace_hardirqs_on+0x67/0x240 [ 619.524771][ C0] kthread+0x361/0x430 [ 619.524775][ C0] ? process_one_work+0x17a0/0x17a0 [ 619.524779][ C0] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 619.524782][ C0] ret_from_fork+0x24/0x30 [ 619.526770][ T1106] Kernel panic - not syncing: hung_task: blocked tasks [ 619.754310][ T1106] CPU: 1 PID: 1106 Comm: khungtaskd Not tainted 5.5.0-syzkaller #0 [ 619.762207][ T1106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 619.772282][ T1106] Call Trace: [ 619.775602][ T1106] dump_stack+0x197/0x210 [ 619.780018][ T1106] panic+0x2e3/0x75c [ 619.783929][ T1106] ? add_taint.cold+0x16/0x16 [ 619.788746][ T1106] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 619.794499][ T1106] ? ___preempt_schedule+0x16/0x18 [ 619.799639][ T1106] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 619.805803][ T1106] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 619.811976][ T1106] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 619.818455][ T1106] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 619.824628][ T1106] watchdog+0xb22/0x10c0 [ 619.828913][ T1106] kthread+0x361/0x430 [ 619.833001][ T1106] ? reset_hung_task_detector+0x30/0x30 [ 619.838686][ T1106] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 619.844425][ T1106] ret_from_fork+0x24/0x30 [ 619.850856][ T1106] Kernel Offset: disabled [ 619.855204][ T1106] Rebooting in 86400 seconds..