| TITLE: INFO: task hung in p9_fd_close |
| TYPE: HANG |
| |
| [ 553.841261] INFO: task syz-executor4:6761 blocked for more than 140 seconds. |
| [ 553.848760] Not tainted 4.19.0-rc2+ #220 |
| [ 553.853395] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 553.861417] syz-executor4 D24208 6761 4671 0x00000004 |
| [ 553.867126] Call Trace: |
| [ 553.869906] __schedule+0x87c/0x1df0 |
| [ 553.945930] schedule+0xfb/0x450 |
| [ 553.957505] schedule_timeout+0x1cc/0x260 |
| [ 553.984219] wait_for_completion+0x430/0x8d0 |
| [ 554.026409] __flush_work+0x59f/0x9c0 |
| [ 554.057841] __cancel_work_timer+0x4c2/0x830 |
| [ 554.111415] cancel_work_sync+0x17/0x20 |
| [ 554.115413] p9_fd_close+0x376/0x5c0 |
| [ 554.127847] p9_client_create+0xa41/0x159b |
| [ 554.188529] v9fs_session_init+0x21a/0x1a80 |
| [ 554.236768] v9fs_mount+0x7c/0x900 |
| [ 554.244961] mount_fs+0xae/0x328 |
| [ 554.248365] vfs_kern_mount.part.35+0xdc/0x4f0 |
| [ 554.264757] do_mount+0x581/0x30e0 |
| [ 554.306007] ksys_mount+0x12d/0x140 |
| [ 554.309671] __x64_sys_mount+0xbe/0x150 |
| [ 554.313690] do_syscall_64+0x1b9/0x820 |
| [ 554.352006] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 554.357227] RIP: 0033:0x457099 |
| [ 554.360464] Code: ff 48 89 f1 48 01 d9 48 39 f9 76 bb 48 01 df 48 01 de fd 48 89 d9 48 c1 e9 03 48 83 e3 07 48 83 ef 08 48 83 ee 08 f3 48 a5 fc <48> 83 c7 08 48 83 c6 08 48 29 df 48 29 de e9 13 ff ff ff 8a 06 8a |
| [ 554.379398] RSP: 002b:00007fc85cf84c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 |
| [ 554.387139] RAX: ffffffffffffffda RBX: 00007fc85cf856d4 RCX: 0000000000457099 |
| [ 554.394431] RDX: 0000000020000340 RSI: 0000000020000080 RDI: 0000000000000000 |
| [ 554.401855] RBP: 0000000000930140 R08: 00000000200006c0 R09: 0000000000000000 |
| [ 554.409151] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 554.416448] R13: 00000000004d2ec8 R14: 00000000004c7f7e R15: 0000000000000001 |
| [ 554.423839] INFO: task syz-executor7:6763 blocked for more than 140 seconds. |
| [ 554.431064] Not tainted 4.19.0-rc2+ #220 |
| [ 554.435796] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 554.443800] syz-executor7 D24280 6763 4679 0x00000004 |
| [ 554.449457] Call Trace: |
| [ 554.452082] __schedule+0x87c/0x1df0 |
| [ 554.503292] schedule+0xfb/0x450 |
| [ 554.514849] schedule_timeout+0x1cc/0x260 |
| [ 554.541292] wait_for_completion+0x430/0x8d0 |
| [ 554.583439] __flush_work+0x59f/0x9c0 |
| [ 554.614328] __cancel_work_timer+0x4c2/0x830 |
| [ 554.667448] cancel_work_sync+0x17/0x20 |
| [ 554.671449] p9_fd_close+0x376/0x5c0 |
| [ 554.683728] p9_client_create+0xa41/0x159b |
| [ 554.744339] v9fs_session_init+0x21a/0x1a80 |
| [ 554.792450] v9fs_mount+0x7c/0x900 |
| [ 554.800628] mount_fs+0xae/0x328 |
| [ 554.804028] vfs_kern_mount.part.35+0xdc/0x4f0 |
| [ 554.820504] do_mount+0x581/0x30e0 |
| [ 554.863229] ksys_mount+0x12d/0x140 |
| [ 554.866881] __x64_sys_mount+0xbe/0x150 |
| [ 554.870876] do_syscall_64+0x1b9/0x820 |
| [ 554.909487] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 554.914719] RIP: 0033:0x457099 |
| [ 554.917931] Code: ff 48 89 f1 48 01 d9 48 39 f9 76 bb 48 01 df 48 01 de fd 48 89 d9 48 c1 e9 03 48 83 e3 07 48 83 ef 08 48 83 ee 08 f3 48 a5 fc <48> 83 c7 08 48 83 c6 08 48 29 df 48 29 de e9 13 ff ff ff 8a 06 8a |
| [ 554.936982] RSP: 002b:00007f8f5c943c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 |
| [ 554.944914] RAX: ffffffffffffffda RBX: 00007f8f5c9446d4 RCX: 0000000000457099 |
| [ 554.952208] RDX: 0000000020000340 RSI: 0000000020000080 RDI: 0000000000000000 |
| [ 554.959976] RBP: 0000000000930140 R08: 00000000200006c0 R09: 0000000000000000 |
| [ 554.967279] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 554.974570] R13: 00000000004d2ec8 R14: 00000000004c7f7e R15: 0000000000000001 |
| [ 554.981877] INFO: task syz-executor1:6767 blocked for more than 140 seconds. |
| [ 554.989080] Not tainted 4.19.0-rc2+ #220 |
| [ 554.993685] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 555.001804] syz-executor1 D23728 6767 4680 0x00000004 |
| [ 555.007486] Call Trace: |
| [ 555.010131] __schedule+0x87c/0x1df0 |
| [ 555.085382] schedule+0xfb/0x450 |
| [ 555.096866] schedule_timeout+0x1cc/0x260 |
| [ 555.123583] wait_for_completion+0x430/0x8d0 |
| [ 555.165709] __flush_work+0x59f/0x9c0 |
| [ 555.196881] __cancel_work_timer+0x4c2/0x830 |
| [ 555.250434] cancel_work_sync+0x17/0x20 |
| [ 555.254436] p9_fd_close+0x376/0x5c0 |
| [ 555.266706] p9_client_create+0xa41/0x159b |
| [ 555.327191] v9fs_session_init+0x21a/0x1a80 |
| [ 555.375363] v9fs_mount+0x7c/0x900 |
| [ 555.383540] mount_fs+0xae/0x328 |
| [ 555.386932] vfs_kern_mount.part.35+0xdc/0x4f0 |
| [ 555.403290] do_mount+0x581/0x30e0 |
| [ 555.446153] ksys_mount+0x12d/0x140 |
| [ 555.449827] __x64_sys_mount+0xbe/0x150 |
| [ 555.453851] do_syscall_64+0x1b9/0x820 |
| [ 555.492127] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 555.497391] RIP: 0033:0x457099 |
| [ 555.500644] Code: ff 48 89 f1 48 01 d9 48 39 f9 76 bb 48 01 df 48 01 de fd 48 89 d9 48 c1 e9 03 48 83 e3 07 48 83 ef 08 48 83 ee 08 f3 48 a5 fc <48> 83 c7 08 48 83 c6 08 48 29 df 48 29 de e9 13 ff ff ff 8a 06 8a |
| [ 555.519563] RSP: 002b:00007effeff81c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 |
| [ 555.527328] RAX: ffffffffffffffda RBX: 00007effeff826d4 RCX: 0000000000457099 |
| [ 555.534617] RDX: 0000000020000340 RSI: 0000000020000080 RDI: 0000000000000000 |
| [ 555.541910] RBP: 0000000000930140 R08: 00000000200006c0 R09: 0000000000000000 |
| [ 555.549215] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 555.556512] R13: 00000000004d2ec8 R14: 00000000004c7f7e R15: 0000000000000001 |
| [ 555.563819] INFO: task syz-executor0:6778 blocked for more than 140 seconds. |
| [ 555.571024] Not tainted 4.19.0-rc2+ #220 |
| [ 555.575617] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 555.583601] syz-executor0 D24208 6778 4672 0x00000004 |
| [ 555.589248] Call Trace: |
| [ 555.591866] __schedule+0x87c/0x1df0 |
| [ 555.662608] schedule+0xfb/0x450 |
| [ 555.674168] schedule_timeout+0x1cc/0x260 |
| [ 555.700924] wait_for_completion+0x430/0x8d0 |
| [ 555.742971] __flush_work+0x59f/0x9c0 |
| [ 555.773842] __cancel_work_timer+0x4c2/0x830 |
| [ 555.827241] cancel_work_sync+0x17/0x20 |
| [ 555.831343] p9_fd_close+0x376/0x5c0 |
| [ 555.843646] p9_client_create+0xa41/0x159b |
| [ 555.904122] v9fs_session_init+0x21a/0x1a80 |
| [ 555.952681] v9fs_mount+0x7c/0x900 |
| [ 555.960887] mount_fs+0xae/0x328 |
| [ 555.964286] vfs_kern_mount.part.35+0xdc/0x4f0 |
| [ 555.980633] do_mount+0x581/0x30e0 |
| [ 556.026360] ksys_mount+0x12d/0x140 |
| [ 556.030008] __x64_sys_mount+0xbe/0x150 |
| [ 556.034015] do_syscall_64+0x1b9/0x820 |
| [ 556.072308] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 556.077522] RIP: 0033:0x457099 |
| [ 556.080856] Code: ff 48 89 f1 48 01 d9 48 39 f9 76 bb 48 01 df 48 01 de fd 48 89 d9 48 c1 e9 03 48 83 e3 07 48 83 ef 08 48 83 ee 08 f3 48 a5 fc <48> 83 c7 08 48 83 c6 08 48 29 df 48 29 de e9 13 ff ff ff 8a 06 8a |
| [ 556.099793] RSP: 002b:00007f0f1a501c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 |
| [ 556.107537] RAX: ffffffffffffffda RBX: 00007f0f1a5026d4 RCX: 0000000000457099 |
| [ 556.114828] RDX: 0000000020000340 RSI: 0000000020000080 RDI: 0000000000000000 |
| [ 556.122206] RBP: 0000000000930140 R08: 00000000200006c0 R09: 0000000000000000 |
| [ 556.129503] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 556.136800] R13: 00000000004d2ec8 R14: 00000000004c7f7e R15: 0000000000000001 |
| [ 556.144132] INFO: task syz-executor5:6786 blocked for more than 140 seconds. |
| [ 556.151334] Not tainted 4.19.0-rc2+ #220 |
| [ 556.155936] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 556.163920] syz-executor5 D23728 6786 4676 0x00000004 |
| [ 556.169725] Call Trace: |
| [ 556.172341] __schedule+0x87c/0x1df0 |
| [ 556.223417] schedule+0xfb/0x450 |
| [ 556.234897] schedule_timeout+0x1cc/0x260 |
| [ 556.261326] wait_for_completion+0x430/0x8d0 |
| [ 556.303408] __flush_work+0x59f/0x9c0 |
| [ 556.334450] __cancel_work_timer+0x4c2/0x830 |
| [ 556.387810] cancel_work_sync+0x17/0x20 |
| [ 556.391807] p9_fd_close+0x376/0x5c0 |
| [ 556.404271] p9_client_create+0xa41/0x159b |
| [ 556.464928] v9fs_session_init+0x21a/0x1a80 |
| [ 556.513197] v9fs_mount+0x7c/0x900 |
| [ 556.521384] mount_fs+0xae/0x328 |
| [ 556.524787] vfs_kern_mount.part.35+0xdc/0x4f0 |
| [ 556.541181] do_mount+0x581/0x30e0 |
| [ 556.584116] ksys_mount+0x12d/0x140 |
| [ 556.587774] __x64_sys_mount+0xbe/0x150 |
| [ 556.591774] do_syscall_64+0x1b9/0x820 |
| [ 556.630093] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 556.635347] RIP: 0033:0x457099 |
| [ 556.638586] Code: ff 48 89 f1 48 01 d9 48 39 f9 76 bb 48 01 df 48 01 de fd 48 89 d9 48 c1 e9 03 48 83 e3 07 48 83 ef 08 48 83 ee 08 f3 48 a5 fc <48> 83 c7 08 48 83 c6 08 48 29 df 48 29 de e9 13 ff ff ff 8a 06 8a |
| [ 556.657520] RSP: 002b:00007f5ce1e47c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 |
| [ 556.665260] RAX: ffffffffffffffda RBX: 00007f5ce1e486d4 RCX: 0000000000457099 |
| [ 556.672548] RDX: 0000000020000340 RSI: 0000000020000080 RDI: 0000000000000000 |
| [ 556.680036] RBP: 0000000000930140 R08: 00000000200006c0 R09: 0000000000000000 |
| [ 556.687337] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 556.694639] R13: 00000000004d2ec8 R14: 00000000004c7f7e R15: 0000000000000001 |
| [ 556.701941] INFO: task syz-executor3:6796 blocked for more than 140 seconds. |
| [ 556.709158] Not tainted 4.19.0-rc2+ #220 |
| [ 556.713768] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 556.721776] syz-executor3 D24208 6796 4669 0x00000004 |
| [ 556.727434] Call Trace: |
| [ 556.730090] __schedule+0x87c/0x1df0 |
| [ 556.801016] schedule+0xfb/0x450 |
| [ 556.812566] schedule_timeout+0x1cc/0x260 |
| [ 556.839410] wait_for_completion+0x430/0x8d0 |
| [ 556.881735] __flush_work+0x59f/0x9c0 |
| [ 556.912711] __cancel_work_timer+0x4c2/0x830 |
| [ 556.966210] cancel_work_sync+0x17/0x20 |
| [ 556.970250] p9_fd_close+0x376/0x5c0 |
| [ 556.982582] p9_client_create+0xa41/0x159b |
| [ 557.043287] v9fs_session_init+0x21a/0x1a80 |
| [ 557.091557] v9fs_mount+0x7c/0x900 |
| [ 557.099781] mount_fs+0xae/0x328 |
| [ 557.103194] vfs_kern_mount.part.35+0xdc/0x4f0 |
| [ 557.119648] do_mount+0x581/0x30e0 |
| [ 557.162527] ksys_mount+0x12d/0x140 |
| [ 557.166194] __x64_sys_mount+0xbe/0x150 |
| [ 557.170212] do_syscall_64+0x1b9/0x820 |
| [ 557.208692] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 557.213926] RIP: 0033:0x457099 |
| [ 557.217158] Code: ff 48 89 f1 48 01 d9 48 39 f9 76 bb 48 01 df 48 01 de fd 48 89 d9 48 c1 e9 03 48 83 e3 07 48 83 ef 08 48 83 ee 08 f3 48 a5 fc <48> 83 c7 08 48 83 c6 08 48 29 df 48 29 de e9 13 ff ff ff 8a 06 8a |
| [ 557.236149] RSP: 002b:00007fd9154a3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 |
| [ 557.243903] RAX: ffffffffffffffda RBX: 00007fd9154a46d4 RCX: 0000000000457099 |
| [ 557.251219] RDX: 0000000020000340 RSI: 0000000020000080 RDI: 0000000000000000 |
| [ 557.258524] RBP: 0000000000930140 R08: 00000000200006c0 R09: 0000000000000000 |
| [ 557.265839] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 557.273144] R13: 00000000004d2ec8 R14: 00000000004c7f7e R15: 0000000000000001 |
| [ 557.280476] |
| [ 557.280476] Showing all locks held in the system: |
| [ 557.286869] 1 lock held by khungtaskd/792: |
| [ 557.291135] #0: 000000000e95ae68 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x428 |
| [ 557.299832] 2 locks held by kworker/1:2/2017: |
| [ 557.304359] #0: 00000000833bda7a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb44/0x1aa0 |
| [ 557.313752] #1: 00000000e891bf2d ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0xb9b/0x1aa0 |
| [ 557.323340] 1 lock held by rsyslogd/4534: |
| [ 557.327518] #0: 00000000a9629eb8 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 |
| [ 557.335561] 2 locks held by getty/4624: |
| [ 557.339560] #0: 00000000ea90a35c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.347856] #1: 00000000bd156fd4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.356845] 2 locks held by getty/4625: |
| [ 557.360852] #0: 00000000169d0485 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.369158] #1: 00000000c4539382 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.378063] 2 locks held by getty/4626: |
| [ 557.382068] #0: 00000000a26a0a94 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.390408] #1: 000000003ec956e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.399316] 2 locks held by getty/4627: |
| [ 557.403316] #0: 00000000dcbe9c13 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.411609] #1: 000000001afea02f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.420541] 2 locks held by getty/4628: |
| [ 557.424543] #0: 00000000d4a69f40 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.432842] #1: 00000000c3d9d403 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.441751] 2 locks held by getty/4629: |
| [ 557.445754] #0: 00000000c03b8a61 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.454046] #1: 00000000eb4a7587 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.463007] 2 locks held by getty/4630: |
| [ 557.467019] #0: 000000001dace414 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 |
| [ 557.475340] #1: 00000000ea0adf09 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 |
| [ 557.484273] 2 locks held by kworker/0:1/4958: |
| [ 557.488798] #0: 00000000833bda7a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb44/0x1aa0 |
| [ 557.498148] #1: 000000008346206e ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0xb9b/0x1aa0 |
| [ 557.507684] 2 locks held by kworker/1:0/4973: |
| [ 557.512225] #0: 00000000833bda7a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb44/0x1aa0 |
| [ 557.521583] #1: 0000000065680b0e ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0xb9b/0x1aa0 |
| [ 557.531136] 2 locks held by kworker/1:3/5135: |
| [ 557.535656] #0: 00000000833bda7a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb44/0x1aa0 |
| [ 557.545011] #1: 00000000cf4ba585 ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0xb9b/0x1aa0 |
| [ 557.554575] 2 locks held by kworker/1:4/6784: |
| [ 557.559124] #0: 00000000833bda7a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb44/0x1aa0 |
| [ 557.568488] #1: 000000008563b2dd ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0xb9b/0x1aa0 |
| [ 557.578019] 2 locks held by kworker/1:5/6792: |
| [ 557.582540] #0: 00000000833bda7a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb44/0x1aa0 |
| [ 557.591883] #1: 000000002a8f7162 ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0xb9b/0x1aa0 |
| [ 557.601425] |
| [ 557.603119] ============================================= |
| [ 557.603119] |
| [ 557.610167] NMI backtrace for cpu 1 |
| [ 557.613829] CPU: 1 PID: 792 Comm: khungtaskd Not tainted 4.19.0-rc2+ #220 |
| [ 557.620748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 557.630088] Call Trace: |
| [ 557.632720] dump_stack+0x1c9/0x2b4 |
| [ 557.650752] nmi_cpu_backtrace.cold.3+0x48/0x88 |
| [ 557.665295] nmi_trigger_cpumask_backtrace+0x151/0x192 |
| [ 557.670563] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 557.675743] watchdog+0xb39/0x1040 |
| [ 557.734039] kthread+0x35a/0x420 |
| [ 557.746020] ret_from_fork+0x3a/0x50 |
| [ 557.749806] Sending NMI from CPU 1 to CPUs 0: |
| [ 557.754864] NMI backtrace for cpu 0 |
| [ 557.754870] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0-rc2+ #220 |
| [ 557.754877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 557.754881] RIP: 0010:reschedule_interrupt+0x0/0x20 |
| [ 557.754893] Code: 66 2e 0f 1f 84 00 00 00 00 00 68 03 ff ff ff e8 56 f2 ff ff e8 d1 27 00 00 e9 4b f3 ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 <68> 02 ff ff ff e8 36 f2 ff ff e8 d1 21 00 00 e9 2b f3 ff ff 66 90 |
| [ 557.754898] RSP: 0018:ffffffff88007b88 EFLAGS: 00000082 |
| [ 557.754906] RAX: dffffc0000000000 RBX: 1ffffffff1000f7b RCX: 0000000000000000 |
| [ 557.754911] RDX: 1ffffffff10237c8 RSI: 0000000000000001 RDI: ffffffff8811be40 |
| [ 557.754917] RBP: ffffffff88007bb8 R08: ffffffff88075e00 R09: 0000000000000000 |
| [ 557.754922] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 |
| [ 557.754928] R13: ffffffff88007c78 R14: 0000000000000000 R15: 0000000000000000 |
| [ 557.754933] FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 |
| [ 557.754938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| [ 557.754944] CR2: 0000000000e5a000 CR3: 00000001bbe81000 CR4: 00000000001406f0 |
| [ 557.754949] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 |
| [ 557.754954] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 |
| [ 557.754965] Call Trace: |
| [ 557.754973] default_idle+0xc2/0x410 |
| [ 557.755012] arch_cpu_idle+0x10/0x20 |
| [ 557.755016] default_idle_call+0x6d/0x90 |
| [ 557.755019] do_idle+0x3aa/0x580 |
| [ 557.755030] cpu_startup_entry+0x10c/0x120 |
| [ 557.755037] rest_init+0xe1/0xe4 |
| [ 557.755041] start_kernel+0x913/0x94e |
| [ 557.755066] x86_64_start_reservations+0x29/0x2b |
| [ 557.755069] x86_64_start_kernel+0x76/0x79 |
| [ 557.755073] secondary_startup_64+0xa4/0xb0 |
| [ 557.755339] Kernel panic - not syncing: hung_task: blocked tasks |
| [ 558.004401] CPU: 1 PID: 792 Comm: khungtaskd Not tainted 4.19.0-rc2+ #220 |
| [ 558.011310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 558.020648] Call Trace: |
| [ 558.023228] dump_stack+0x1c9/0x2b4 |
| [ 558.036769] panic+0x238/0x4e7 |
| [ 558.059366] watchdog+0xb4a/0x1040 |
| [ 558.117713] kthread+0x35a/0x420 |
| [ 558.129720] ret_from_fork+0x3a/0x50 |
| [ 558.133929] Dumping ftrace buffer: |
| [ 558.137498] (ftrace buffer empty) |
| [ 558.141192] Kernel Offset: disabled |
| [ 558.144804] Rebooting in 86400 seconds.. |
