| TITLE: INFO: task hung in synchronize_rcu |
| TYPE: HANG |
| |
| [ 327.308891][ T1057] INFO: task kworker/u4:6:10032 blocked for more than 143 seconds. |
| [ 327.316819][ T1057] Not tainted 5.3.0-rc7+ #0 |
| [ 327.323293][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 327.332025][ T1057] kworker/u4:6 D28320 10032 2 0x80004000 |
| [ 327.338470][ T1057] Workqueue: netns cleanup_net |
| [ 327.344651][ T1057] Call Trace: |
| [ 327.347971][ T1057] __schedule+0x755/0x1580 |
| [ 327.381093][ T1057] schedule+0xd9/0x260 |
| [ 327.385145][ T1057] synchronize_rcu_expedited+0x544/0x5b0 |
| [ 327.438039][ T1057] synchronize_net+0x3b/0x60 |
| [ 327.443898][ T1057] rollback_registered_many+0x57a/0xdd0 |
| [ 327.471473][ T1057] unregister_netdevice_many.part.0+0x1b/0x1f0 |
| [ 327.477614][ T1057] unregister_netdevice_many+0x3b/0x50 |
| [ 327.484383][ T1057] sit_exit_batch_net+0x560/0x750 |
| [ 327.500919][ T1057] ops_exit_list.isra.0+0xfc/0x150 |
| [ 327.506012][ T1057] cleanup_net+0x4e2/0xa60 |
| [ 327.526161][ T1057] process_one_work+0x9af/0x1740 |
| [ 327.542653][ T1057] worker_thread+0x98/0xe40 |
| [ 327.547143][ T1057] kthread+0x361/0x430 |
| [ 327.564072][ T1057] ret_from_fork+0x24/0x30 |
| [ 327.568484][ T1057] INFO: task syz-executor.5:10905 blocked for more than 143 seconds. |
| [ 327.576610][ T1057] Not tainted 5.3.0-rc7+ #0 |
| [ 327.581660][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 327.590335][ T1057] syz-executor.5 D27056 10905 9789 0x20020004 |
| [ 327.596659][ T1057] Call Trace: |
| [ 327.599954][ T1057] __schedule+0x755/0x1580 |
| [ 327.623759][ T1057] schedule+0xd9/0x260 |
| [ 327.627802][ T1057] schedule_preempt_disabled+0x13/0x20 |
| [ 327.633293][ T1057] __mutex_lock+0x7b0/0x13c0 |
| [ 327.681906][ T1057] mutex_lock_nested+0x16/0x20 |
| [ 327.691727][ T1057] rtnl_lock+0x17/0x20 |
| [ 327.695823][ T1057] addrconf_set_dstaddr+0xa4/0x460 |
| [ 327.737643][ T1057] inet6_ioctl+0x161/0x1c0 |
| [ 327.742119][ T1057] sock_do_ioctl+0xd8/0x2f0 |
| [ 327.761628][ T1057] compat_sock_ioctl+0x15f9/0x2240 |
| [ 327.802508][ T1057] __ia32_compat_sys_ioctl+0x195/0x620 |
| [ 327.807954][ T1057] do_fast_syscall_32+0x27b/0xdb3 |
| [ 327.813008][ T1057] entry_SYSENTER_compat+0x70/0x7f |
| [ 327.818105][ T1057] RIP: 0023:0xf7ffca29 |
| [ 327.822187][ T1057] Code: Bad RIP value. |
| [ 327.826239][ T1057] RSP: 002b:00000000f5df80cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 |
| [ 327.834670][ T1057] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000008918 |
| [ 327.842646][ T1057] RDX: 0000000020000080 RSI: 0000000000000000 RDI: 0000000000000000 |
| [ 327.850705][ T1057] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 |
| [ 327.858663][ T1057] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 |
| [ 327.866652][ T1057] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 |
| [ 327.874666][ T1057] INFO: task syz-executor.5:10909 blocked for more than 143 seconds. |
| [ 327.882742][ T1057] Not tainted 5.3.0-rc7+ #0 |
| [ 327.887745][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 327.896424][ T1057] syz-executor.5 D26880 10909 9789 0x20020004 |
| [ 327.902884][ T1057] Call Trace: |
| [ 327.906169][ T1057] __schedule+0x755/0x1580 |
| [ 327.930312][ T1057] schedule+0xd9/0x260 |
| [ 327.934367][ T1057] schedule_preempt_disabled+0x13/0x20 |
| [ 327.939980][ T1057] __mutex_lock+0x7b0/0x13c0 |
| [ 328.005917][ T1057] mutex_lock_nested+0x16/0x20 |
| [ 328.015610][ T1057] rtnl_lock+0x17/0x20 |
| [ 328.019715][ T1057] addrconf_set_dstaddr+0xa4/0x460 |
| [ 328.073485][ T1057] inet6_ioctl+0x161/0x1c0 |
| [ 328.077905][ T1057] sock_do_ioctl+0xd8/0x2f0 |
| [ 328.097440][ T1057] compat_sock_ioctl+0x15f9/0x2240 |
| [ 328.138022][ T1057] __ia32_compat_sys_ioctl+0x195/0x620 |
| [ 328.143493][ T1057] do_fast_syscall_32+0x27b/0xdb3 |
| [ 328.148529][ T1057] entry_SYSENTER_compat+0x70/0x7f |
| [ 328.153657][ T1057] RIP: 0023:0xf7ffca29 |
| [ 328.157718][ T1057] Code: Bad RIP value. |
| [ 328.161786][ T1057] RSP: 002b:00000000f5dd70cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 |
| [ 328.170211][ T1057] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000008918 |
| [ 328.178160][ T1057] RDX: 0000000020000080 RSI: 0000000000000000 RDI: 0000000000000000 |
| [ 328.186136][ T1057] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 |
| [ 328.194472][ T1057] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 |
| [ 328.202461][ T1057] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 |
| [ 328.210448][ T1057] INFO: task syz-executor.2:10916 blocked for more than 144 seconds. |
| [ 328.219830][ T1057] Not tainted 5.3.0-rc7+ #0 |
| [ 328.224833][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 328.233508][ T1057] syz-executor.2 D28616 10916 9778 0x20020004 |
| [ 328.239866][ T1057] Call Trace: |
| [ 328.243153][ T1057] __schedule+0x755/0x1580 |
| [ 328.266958][ T1057] schedule+0xd9/0x260 |
| [ 328.271090][ T1057] schedule_preempt_disabled+0x13/0x20 |
| [ 328.276537][ T1057] __mutex_lock+0x7b0/0x13c0 |
| [ 328.318172][ T1057] mutex_lock_nested+0x16/0x20 |
| [ 328.328120][ T1057] rtnetlink_rcv_msg+0x40a/0xb00 |
| [ 328.349062][ T1057] netlink_rcv_skb+0x177/0x450 |
| [ 328.369167][ T1057] rtnetlink_rcv+0x1d/0x30 |
| [ 328.373580][ T1057] netlink_unicast+0x531/0x710 |
| [ 328.399827][ T1057] netlink_sendmsg+0x8a5/0xd60 |
| [ 328.437231][ T1057] sock_sendmsg+0xd7/0x130 |
| [ 328.441656][ T1057] ___sys_sendmsg+0x803/0x920 |
| [ 328.484390][ T1057] __sys_sendmsg+0x105/0x1d0 |
| [ 328.511110][ T1057] __ia32_compat_sys_sendmsg+0x7a/0xb0 |
| [ 328.516564][ T1057] do_fast_syscall_32+0x27b/0xdb3 |
| [ 328.521601][ T1057] entry_SYSENTER_compat+0x70/0x7f |
| [ 328.526701][ T1057] RIP: 0023:0xf7fe1a29 |
| [ 328.530817][ T1057] Code: Bad RIP value. |
| [ 328.534879][ T1057] RSP: 002b:00000000f5ddd0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 |
| [ 328.543312][ T1057] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000080 |
| [ 328.551284][ T1057] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 |
| [ 328.559276][ T1057] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 |
| [ 328.567238][ T1057] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 |
| [ 328.575389][ T1057] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 |
| [ 328.583566][ T1057] INFO: task syz-executor.2:10958 blocked for more than 144 seconds. |
| [ 328.591653][ T1057] Not tainted 5.3.0-rc7+ #0 |
| [ 328.596680][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 328.605352][ T1057] syz-executor.2 D28792 10958 9778 0x20020004 |
| [ 328.611705][ T1057] Call Trace: |
| [ 328.614988][ T1057] __schedule+0x755/0x1580 |
| [ 328.638853][ T1057] schedule+0xd9/0x260 |
| [ 328.642913][ T1057] schedule_preempt_disabled+0x13/0x20 |
| [ 328.648343][ T1057] __mutex_lock+0x7b0/0x13c0 |
| [ 328.689967][ T1057] mutex_lock_nested+0x16/0x20 |
| [ 328.699684][ T1057] rtnetlink_rcv_msg+0x40a/0xb00 |
| [ 328.720799][ T1057] netlink_rcv_skb+0x177/0x450 |
| [ 328.740895][ T1057] rtnetlink_rcv+0x1d/0x30 |
| [ 328.745298][ T1057] netlink_unicast+0x531/0x710 |
| [ 328.771547][ T1057] netlink_sendmsg+0x8a5/0xd60 |
| [ 328.808925][ T1057] sock_sendmsg+0xd7/0x130 |
| [ 328.813327][ T1057] ___sys_sendmsg+0x803/0x920 |
| [ 328.856528][ T1057] __sys_sendmsg+0x105/0x1d0 |
| [ 328.883164][ T1057] __ia32_compat_sys_sendmsg+0x7a/0xb0 |
| [ 328.888614][ T1057] do_fast_syscall_32+0x27b/0xdb3 |
| [ 328.893644][ T1057] entry_SYSENTER_compat+0x70/0x7f |
| [ 328.898772][ T1057] RIP: 0023:0xf7fe1a29 |
| [ 328.902831][ T1057] Code: Bad RIP value. |
| [ 328.906869][ T1057] RSP: 002b:00000000f5d9b0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 |
| [ 328.915297][ T1057] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000080 |
| [ 328.923281][ T1057] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 |
| [ 328.931260][ T1057] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 |
| [ 328.939231][ T1057] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 |
| [ 328.947177][ T1057] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 |
| [ 328.955169][ T1057] INFO: lockdep is turned off. |
| [ 328.959927][ T1057] NMI backtrace for cpu 0 |
| [ 328.964229][ T1057] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc7+ #0 |
| [ 328.971653][ T1057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 328.981679][ T1057] Call Trace: |
| [ 328.984986][ T1057] dump_stack+0x172/0x1f0 |
| [ 328.989293][ T1057] nmi_cpu_backtrace.cold+0x70/0xb2 |
| [ 329.006306][ T1057] nmi_trigger_cpumask_backtrace+0x23b/0x28b |
| [ 329.012258][ T1057] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 329.018122][ T1057] watchdog+0x9d0/0xef0 |
| [ 329.022255][ T1057] kthread+0x361/0x430 |
| [ 329.038033][ T1057] ret_from_fork+0x24/0x30 |
| [ 329.042527][ T1057] Sending NMI from CPU 0 to CPUs 1: |
| [ 329.047750][ C1] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 |
| [ 329.049048][ T1057] Kernel panic - not syncing: hung_task: blocked tasks |
| [ 329.062806][ T1057] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc7+ #0 |
| [ 329.070228][ T1057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 329.080253][ T1057] Call Trace: |
| [ 329.083516][ T1057] dump_stack+0x172/0x1f0 |
| [ 329.087818][ T1057] panic+0x2dc/0x755 |
| [ 329.131539][ T1057] watchdog+0x9e1/0xef0 |
| [ 329.135680][ T1057] kthread+0x361/0x430 |
| [ 329.151481][ T1057] ret_from_fork+0x24/0x30 |
| [ 329.157111][ T1057] Kernel Offset: disabled |
| [ 329.161441][ T1057] Rebooting in 86400 seconds.. |
