====================================== | [ 29.425419][ T680] softirqs last disabled at (5376277): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 29.425421][ T680] Preemption disabled at: | [ 29.425422][ T680] 0x0 | [ 29.425432][ T680] Tainted: [W]=WARN [ 29.425433][ T680] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.425434][ T680] Call Trace: [ 29.425436][ T680] [ 29.425437][ T680] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.425444][ T680] __might_resched.cold (kernel/sched/core.c:9234) [ 29.425449][ T680] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.425453][ T680] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.425457][ T680] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 29.425460][ T680] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.425465][ T680] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 29.425468][ T680] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.425471][ T680] put_chars (drivers/char/virtio_console.c:1176) [ 29.425473][ T680] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 29.425476][ T680] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.425479][ T680] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.425483][ T680] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.425485][ T680] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.425489][ T680] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.425492][ T680] ? mark_usage (kernel/locking/lockdep.c:4690) [ 29.425494][ T680] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.425495][ T680] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.425499][ T680] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.425501][ T680] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 29.425504][ T680] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.425506][ T680] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.425510][ T680] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.425514][ T680] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.425515][ T680] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 29.425518][ T680] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.425521][ T680] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.425524][ T680] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.425528][ T680] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.425530][ T680] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.425535][ T680] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.425538][ T680] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.425540][ T680] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.425542][ T680] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 29.425545][ T680] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.425547][ T680] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.425550][ T680] vprintk_emit (kernel/printk/printk.c:2479) [ 29.425554][ T680] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.425557][ T680] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.425561][ T680] _printk (kernel/printk/printk.c:2504) [ 29.425564][ T680] ? snapshot_read.cold (user.c:?) [ 29.425567][ T680] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 29.425569][ T680] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 29.425573][ T680] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 29.425575][ T680] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 29.425579][ T680] ? exit_notify (kernel/exit.c:780) [ 29.425584][ T680] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 29.425585][ T680] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 29.425588][ T680] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 29.425592][ T680] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 29.425595][ T680] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 29.425597][ T680] RIP: 0033:0x7f08903f8c49 [ 29.425599][ T680] Code: Unable to access opcode bytes at 0x7f08903f8c1f. Code starting with the faulting instruction =========================================== [ 29.425600][ T680] RSP: 002b:00007f088fbb7e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 29.425602][ T680] RAX: ffffffffffffffda RBX: 00007f088fbb86c0 RCX: 00007f08903f8c49 [ 29.425604][ T680] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 29.425605][ T680] RBP: 00007f088fbb7f70 R08: 0000000000000001 R09: 00007f088fbb86c0 [ 29.425606][ T680] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f088f3b8000 [ 29.425606][ T680] R13: 00007ffca29ea9c0 R14: 0000000000000002 R15: 00007ffca29eaac7 | [ 31.183391][ T775] softirqs last disabled at (35686): ovpn_peer_del (./include/linux/spinlock.h:353 drivers/net/ovpn/peer.c:1214) ovpn | [ 31.183394][ T775] Preemption disabled at: | [ 31.183395][ T775] 0x0 | [ 31.183404][ T775] Tainted: [W]=WARN [ 31.183405][ T775] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.183407][ T775] Call Trace: [ 31.183408][ T775] [ 31.183410][ T775] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.183416][ T775] __might_resched.cold (kernel/sched/core.c:9234) [ 31.183420][ T775] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.183424][ T775] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.183429][ T775] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 31.183431][ T775] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.183436][ T775] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 31.183439][ T775] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.183442][ T775] put_chars (drivers/char/virtio_console.c:1176) [ 31.183445][ T775] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.183447][ T775] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 31.183451][ T775] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 31.183454][ T775] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.183457][ T775] ? mark_usage (kernel/locking/lockdep.c:4690) [ 31.183459][ T775] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.183461][ T775] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.183465][ T775] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.183466][ T775] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.183470][ T775] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.183474][ T775] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.183478][ T775] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.183479][ T775] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 31.183483][ T775] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.183486][ T775] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.183490][ T775] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.183494][ T775] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.183496][ T775] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.183501][ T775] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.183504][ T775] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.183505][ T775] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.183508][ T775] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 31.183511][ T775] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.183513][ T775] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.183516][ T775] vprintk_emit (kernel/printk/printk.c:2479) [ 31.183520][ T775] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.183521][ T775] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 31.183524][ T775] ? __kernel_text_address (kernel/extable.c:79) [ 31.183526][ T775] ? write_profile (profile.c:?) [ 31.183528][ T775] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 31.183532][ T775] _printk (kernel/printk/printk.c:2504) [ 31.183536][ T775] ? snapshot_read.cold (user.c:?) [ 31.183540][ T775] ? mark_usage (kernel/locking/lockdep.c:4690) [ 31.183541][ T775] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 31.183544][ T775] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 31.183547][ T775] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 31.183549][ T775] ? netdev_notice (net/core/dev.c:13194) [ 31.183551][ T775] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.183553][ T775] ? mark_usage (kernel/locking/lockdep.c:4690) [ 31.183556][ T775] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.183561][ T775] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn [ 31.183566][ T775] ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn [ 31.183570][ T775] ? ovpn_peer_get_by_id (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) drivers/net/ovpn/peer.c:680 (discriminator 2)) ovpn [ 31.183575][ T775] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn [ 31.183579][ T775] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 31.183581][ T775] ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn [ 31.183587][ T775] ovpn_peer_del (drivers/net/ovpn/peer.c:1166 drivers/net/ovpn/peer.c:1217) ovpn [ 31.183591][ T775] ? ovpn_peer_add (drivers/net/ovpn/peer.c:1097 (discriminator 9)) ovpn [ 31.183597][ T775] ovpn_nl_peer_del_doit (drivers/net/ovpn/netlink.c:823) ovpn [ 31.183601][ T775] ? ovpn_nl_peer_get_dumpit (drivers/net/ovpn/netlink.c:790) ovpn [ 31.183604][ T775] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.183614][ T775] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:438) [ 31.183615][ T775] ? ovpn_get_dev_from_attrs (./include/linux/rcupdate.h:882 drivers/net/ovpn/netlink.c:67) ovpn [ 31.183621][ T775] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114) [ 31.183624][ T775] ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2)) [ 31.183626][ T775] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.183632][ T775] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.183634][ T775] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 31.183637][ T775] ? write_profile (profile.c:?) [ 31.183639][ T775] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 31.183642][ T775] genl_family_rcv_msg (net/netlink/genetlink.c:1194) [ 31.183646][ T775] ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079) [ 31.183648][ T775] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.183650][ T775] ? ovpn_nl_send_peer (drivers/net/ovpn/netlink.c:606) ovpn [ 31.183653][ T775] ? ovpn_nl_peer_get_dumpit (drivers/net/ovpn/netlink.c:790) ovpn [ 31.183655][ T775] ? ovpn_nl_pre_doit (drivers/net/ovpn/netlink.c:82) ovpn [ 31.183658][ T775] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.183663][ T775] genl_rcv_msg (net/netlink/genetlink.c:1209) [ 31.183667][ T775] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 31.183669][ T775] ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2)) [ 31.183672][ T775] ? netlink_ack (./include/linux/skbuff.h:2718) [ 31.183679][ T775] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 31.183681][ T775] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 31.183684][ T775] genl_rcv (net/netlink/genetlink.c:1218) [ 31.183687][ T775] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 31.183690][ T775] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.183693][ T775] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.183697][ T775] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 31.183701][ T775] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.183705][ T775] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 31.183710][ T775] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 31.183714][ T775] ? copy_msghdr_from_user (net/socket.c:2650) [ 31.183716][ T775] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 31.183718][ T775] ? move_addr_to_kernel (net/socket.c:258) [ 31.183725][ T775] ___sys_sendmsg (net/socket.c:2767) [ 31.183728][ T775] ? copy_msghdr_from_user (net/socket.c:2619) [ 31.183730][ T775] ? kfree (mm/slub.c:6778 (discriminator 1)) [ 31.183745][ T775] __sys_sendmsg (net/socket.c:2799) [ 31.183748][ T775] ? __sys_sendmsg_sock (net/socket.c:2780) [ 31.183753][ T775] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.183756][ T775] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.183759][ T775] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.183762][ T775] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.183765][ T775] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.183767][ T775] RIP: 0033:0x7efd0c85e54e [ 31.183769][ T775] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 31.183771][ T775] RSP: 002b:00007ffd4b8f2530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 31.183773][ T775] RAX: ffffffffffffffda RBX: 000000003ba9b130 RCX: 00007efd0c85e54e [ 31.183775][ T775] RDX: 0000000000000000 RSI: 00007ffd4b8f25d0 RDI: 0000000000000005 [ 31.183776][ T775] RBP: 00007ffd4b8f2540 R08: 0000000000000000 R09: 0000000000000000 [ 31.183777][ T775] R10: 0000000000000000 R11: 0000000000000202 R12: 000000003ba9b200 [ 31.183777][ T775] R13: 00007ffd4b8f25d0 R14: 000000003ba9c260 R15: 000000000040bda8 | [ 34.186930][ T827] softirqs last disabled at (25818): ovpn_peer_del (./include/linux/spinlock.h:353 drivers/net/ovpn/peer.c:1214) ovpn | [ 34.186934][ T827] Preemption disabled at: | [ 34.186935][ T827] 0x0 | [ 34.186945][ T827] Tainted: [W]=WARN [ 34.186946][ T827] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.186947][ T827] Call Trace: [ 34.186949][ T827] [ 34.186950][ T827] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.186956][ T827] __might_resched.cold (kernel/sched/core.c:9234) [ 34.186961][ T827] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.186965][ T827] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.186970][ T827] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 34.186972][ T827] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.186977][ T827] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 34.186980][ T827] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.186983][ T827] put_chars (drivers/char/virtio_console.c:1176) [ 34.186986][ T827] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.186989][ T827] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.186993][ T827] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.186995][ T827] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.186999][ T827] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.187002][ T827] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.187005][ T827] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.187006][ T827] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.187010][ T827] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.187011][ T827] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.187016][ T827] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.187019][ T827] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.187023][ T827] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.187025][ T827] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 34.187028][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.187030][ T827] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.187034][ T827] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.187044][ T827] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.187046][ T827] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.187051][ T827] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.187053][ T827] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.187055][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.187057][ T827] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 34.187061][ T827] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.187063][ T827] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.187066][ T827] vprintk_emit (kernel/printk/printk.c:2479) [ 34.187070][ T827] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.187072][ T827] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 34.187075][ T827] ? __kernel_text_address (kernel/extable.c:79) [ 34.187076][ T827] ? write_profile (profile.c:?) [ 34.187079][ T827] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 34.187083][ T827] _printk (kernel/printk/printk.c:2504) [ 34.187087][ T827] ? snapshot_read.cold (user.c:?) [ 34.187091][ T827] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.187093][ T827] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 34.187096][ T827] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 34.187099][ T827] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 34.187101][ T827] ? netdev_notice (net/core/dev.c:13194) [ 34.187103][ T827] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.187105][ T827] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.187108][ T827] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.187113][ T827] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn [ 34.187118][ T827] ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn [ 34.187122][ T827] ? ovpn_peer_get_by_id (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) drivers/net/ovpn/peer.c:680 (discriminator 2)) ovpn [ 34.187127][ T827] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn [ 34.187131][ T827] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 34.187134][ T827] ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn [ 34.187140][ T827] ovpn_peer_del (drivers/net/ovpn/peer.c:1166 drivers/net/ovpn/peer.c:1217) ovpn [ 34.187144][ T827] ? ovpn_peer_add (drivers/net/ovpn/peer.c:1097 (discriminator 9)) ovpn [ 34.187150][ T827] ovpn_nl_peer_del_doit (drivers/net/ovpn/netlink.c:823) ovpn [ 34.187153][ T827] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 34.187157][ T827] ? ovpn_nl_peer_get_dumpit (drivers/net/ovpn/netlink.c:790) ovpn [ 34.187160][ T827] ? ref_tracker_alloc (./include/linux/spinlock.h:425 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3)) [ 34.187170][ T827] ? ovpn_get_dev_from_attrs (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) drivers/net/ovpn/netlink.c:67 (discriminator 2)) ovpn [ 34.187175][ T827] ? ovpn_get_dev_from_attrs (./include/linux/rcupdate.h:882 drivers/net/ovpn/netlink.c:67) ovpn [ 34.187181][ T827] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114) [ 34.187186][ T827] ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2)) [ 34.187188][ T827] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.187193][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.187196][ T827] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 34.187199][ T827] ? write_profile (profile.c:?) [ 34.187200][ T827] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 34.187204][ T827] genl_family_rcv_msg (net/netlink/genetlink.c:1194) [ 34.187208][ T827] ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079) [ 34.187210][ T827] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.187212][ T827] ? ovpn_nl_send_peer (drivers/net/ovpn/netlink.c:606) ovpn [ 34.187215][ T827] ? ovpn_nl_peer_get_dumpit (drivers/net/ovpn/netlink.c:790) ovpn [ 34.187217][ T827] ? ovpn_nl_pre_doit (drivers/net/ovpn/netlink.c:82) ovpn [ 34.187220][ T827] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.187225][ T827] genl_rcv_msg (net/netlink/genetlink.c:1209) [ 34.187229][ T827] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 34.187231][ T827] ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2)) [ 34.187234][ T827] ? netlink_ack (./include/linux/skbuff.h:2718) [ 34.187241][ T827] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 34.187243][ T827] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 34.187247][ T827] genl_rcv (net/netlink/genetlink.c:1218) [ 34.187249][ T827] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 34.187253][ T827] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.187256][ T827] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.187260][ T827] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 34.187264][ T827] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.187268][ T827] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 34.187273][ T827] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 34.187277][ T827] ? copy_msghdr_from_user (net/socket.c:2650) [ 34.187279][ T827] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 34.187281][ T827] ? move_addr_to_kernel (net/socket.c:258) [ 34.187288][ T827] ___sys_sendmsg (net/socket.c:2767) [ 34.187291][ T827] ? copy_msghdr_from_user (net/socket.c:2619) [ 34.187293][ T827] ? kfree (mm/slub.c:6778 (discriminator 1)) [ 34.187308][ T827] __sys_sendmsg (net/socket.c:2799) [ 34.187311][ T827] ? __sys_sendmsg_sock (net/socket.c:2780) [ 34.187316][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.187319][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.187322][ T827] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 34.187325][ T827] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 34.187328][ T827] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 34.187330][ T827] RIP: 0033:0x7f097d01954e [ 34.187332][ T827] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 34.187334][ T827] RSP: 002b:00007fff50b2fe40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 34.187337][ T827] RAX: ffffffffffffffda RBX: 00000000128dc130 RCX: 00007f097d01954e [ 34.187338][ T827] RDX: 0000000000000000 RSI: 00007fff50b2fee0 RDI: 0000000000000005 [ 34.187339][ T827] RBP: 00007fff50b2fe50 R08: 0000000000000000 R09: 0000000000000000 [ 34.187340][ T827] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000128dc200 [ 34.187341][ T827] R13: 00007fff50b2fee0 R14: 00000000128dd260 R15: 000000000040bda8 | [ 39.332554][ T63] softirqs last disabled at (20048): ovpn_peer_keepalive_work (./include/linux/spinlock.h:353 drivers/net/ovpn/peer.c:1449) ovpn | [ 39.332558][ T63] Preemption disabled at: | [ 39.332558][ T63] 0x0 | [ 39.332569][ T63] Tainted: [W]=WARN [ 39.332569][ T63] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.332571][ T63] Workqueue: ovpn ovpn_peer_keepalive_work [ovpn] [ 39.332576][ T63] Call Trace: [ 39.332577][ T63] [ 39.332579][ T63] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.332586][ T63] __might_resched.cold (kernel/sched/core.c:9234) [ 39.332590][ T63] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.332594][ T63] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 39.332599][ T63] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 39.332601][ T63] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.332607][ T63] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 39.332610][ T63] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.332613][ T63] put_chars (drivers/char/virtio_console.c:1176) [ 39.332616][ T63] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.332621][ T63] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 39.332624][ T63] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.332628][ T63] ? mark_usage (kernel/locking/lockdep.c:4690) [ 39.332629][ T63] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.332631][ T63] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.332635][ T63] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.332637][ T63] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 39.332640][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.332644][ T63] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.332648][ T63] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.332652][ T63] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.332654][ T63] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 39.332657][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.332659][ T63] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.332663][ T63] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.332667][ T63] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.332669][ T63] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.332674][ T63] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.332676][ T63] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.332678][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.332681][ T63] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 39.332684][ T63] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.332686][ T63] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.332689][ T63] vprintk_emit (kernel/printk/printk.c:2479) [ 39.332693][ T63] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.332696][ T63] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.332698][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.332701][ T63] _printk (kernel/printk/printk.c:2504) [ 39.332705][ T63] ? snapshot_read.cold (user.c:?) [ 39.332709][ T63] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.332711][ T63] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 39.332714][ T63] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 39.332717][ T63] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 39.332720][ T63] ? netdev_notice (net/core/dev.c:13194) [ 39.332724][ T63] ? debug_object_free (lib/debugobjects.c:1033) [ 39.332728][ T63] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.332730][ T63] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.332733][ T63] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.332737][ T63] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn [ 39.332743][ T63] ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn [ 39.332749][ T63] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn [ 39.332753][ T63] ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn [ 39.332756][ T63] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 39.332758][ T63] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 39.332762][ T63] ovpn_peer_keepalive_work_single (drivers/net/ovpn/peer.c:1347) ovpn [ 39.332766][ T63] ? ovpn_peers_release_mp (drivers/net/ovpn/peer.c:1290) ovpn [ 39.332769][ T63] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 39.332774][ T63] ovpn_peer_keepalive_work (drivers/net/ovpn/peer.c:1396 drivers/net/ovpn/peer.c:1452) ovpn [ 39.332779][ T63] ? process_one_work (kernel/workqueue.c:3363 (discriminator 2)) [ 39.332781][ T63] ? ovpn_peers_free (drivers/net/ovpn/peer.c:1307) ovpn [ 39.332784][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.332786][ T63] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.332788][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.332792][ T63] process_one_work (kernel/workqueue.c:3387) [ 39.332798][ T63] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 39.332801][ T63] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.332809][ T63] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.332813][ T63] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.332815][ T63] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 39.332818][ T63] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.332821][ T63] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.332823][ T63] kthread (kernel/kthread.c:436) [ 39.332825][ T63] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 39.332828][ T63] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.332831][ T63] ret_from_fork (arch/x86/kernel/process.c:158) [ 39.332835][ T63] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 39.332838][ T63] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 39.332841][ T63] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.332844][ T63] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 40.420283][ T63] softirqs last disabled at (21020): ovpn_peer_keepalive_work (./include/linux/spinlock.h:353 drivers/net/ovpn/peer.c:1449) ovpn | [ 40.420287][ T63] Preemption disabled at: | [ 40.420288][ T63] 0x0 | [ 40.420297][ T63] Tainted: [W]=WARN [ 40.420298][ T63] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.420300][ T63] Workqueue: ovpn ovpn_peer_keepalive_work [ovpn] [ 40.420304][ T63] Call Trace: [ 40.420306][ T63] [ 40.420308][ T63] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 40.420314][ T63] __might_resched.cold (kernel/sched/core.c:9234) [ 40.420319][ T63] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 40.420323][ T63] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 40.420328][ T63] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 40.420330][ T63] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.420337][ T63] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 40.420339][ T63] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.420343][ T63] put_chars (drivers/char/virtio_console.c:1176) [ 40.420345][ T63] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 40.420348][ T63] ? __send_to_port (drivers/char/virtio_console.c:654) [ 40.420351][ T63] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.420355][ T63] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.420357][ T63] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.420361][ T63] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 40.420365][ T63] ? mark_usage (kernel/locking/lockdep.c:4690) [ 40.420366][ T63] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.420368][ T63] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.420372][ T63] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 40.420374][ T63] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 40.420377][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.420379][ T63] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.420383][ T63] console_emit_next_record (kernel/printk/printk.c:3183) [ 40.420387][ T63] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 40.420389][ T63] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 40.420392][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.420394][ T63] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.420398][ T63] console_flush_one_record (kernel/printk/printk.c:3268) [ 40.420402][ T63] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 40.420404][ T63] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.420409][ T63] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 40.420412][ T63] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 40.420413][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.420416][ T63] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 40.420419][ T63] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 40.420421][ T63] ? vprintk_emit (kernel/printk/printk.c:2478) [ 40.420424][ T63] vprintk_emit (kernel/printk/printk.c:2479) [ 40.420428][ T63] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 40.420430][ T63] ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495) [ 40.420433][ T63] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 40.420438][ T63] _printk (kernel/printk/printk.c:2504) [ 40.420442][ T63] ? snapshot_read.cold (user.c:?) [ 40.420445][ T63] ? __unwind_start (arch/x86/kernel/unwind_orc.c:787) [ 40.420447][ T63] ? write_profile (profile.c:?) [ 40.420449][ T63] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 40.420452][ T63] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 40.420456][ T63] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 40.420458][ T63] ? netdev_notice (net/core/dev.c:13194) [ 40.420459][ T63] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.420464][ T63] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.420467][ T63] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.420471][ T63] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn [ 40.420476][ T63] ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn [ 40.420483][ T63] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn [ 40.420487][ T63] ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn [ 40.420489][ T63] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 40.420492][ T63] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 40.420496][ T63] ovpn_peer_keepalive_work_single (drivers/net/ovpn/peer.c:1347) ovpn [ 40.420500][ T63] ? ovpn_peers_release_mp (drivers/net/ovpn/peer.c:1290) ovpn [ 40.420503][ T63] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 40.420508][ T63] ovpn_peer_keepalive_work (drivers/net/ovpn/peer.c:1396 drivers/net/ovpn/peer.c:1452) ovpn [ 40.420512][ T63] ? process_one_work (kernel/workqueue.c:3363 (discriminator 2)) [ 40.420515][ T63] ? ovpn_peers_free (drivers/net/ovpn/peer.c:1307) ovpn [ 40.420518][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.420520][ T63] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.420522][ T63] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.420525][ T63] process_one_work (kernel/workqueue.c:3387) [ 40.420532][ T63] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 40.420535][ T63] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.420542][ T63] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 40.420546][ T63] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 40.420548][ T63] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 40.420551][ T63] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 40.420554][ T63] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 40.420556][ T63] kthread (kernel/kthread.c:436) [ 40.420558][ T63] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 40.420561][ T63] ? kthread_affine_preferred (kernel/kthread.c:857) [ 40.420564][ T63] ret_from_fork (arch/x86/kernel/process.c:158) [ 40.420567][ T63] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 40.420570][ T63] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 40.420573][ T63] ? kthread_affine_preferred (kernel/kthread.c:857) [ 40.420576][ T63] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 45.539812][ T10] softirqs last disabled at (27304): ovpn_peer_keepalive_work (./include/linux/spinlock.h:353 drivers/net/ovpn/peer.c:1449) ovpn | [ 45.539815][ T10] Preemption disabled at: | [ 45.539816][ T10] 0x0 | [ 45.539826][ T10] Tainted: [W]=WARN [ 45.539827][ T10] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 45.539829][ T10] Workqueue: ovpn ovpn_peer_keepalive_work [ovpn] [ 45.539834][ T10] Call Trace: [ 45.539836][ T10] [ 45.539837][ T10] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 45.539844][ T10] __might_resched.cold (kernel/sched/core.c:9234) [ 45.539848][ T10] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 45.539853][ T10] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 45.539858][ T10] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 45.539860][ T10] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 45.539866][ T10] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 45.539869][ T10] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 45.539872][ T10] put_chars (drivers/char/virtio_console.c:1176) [ 45.539874][ T10] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 45.539877][ T10] ? __send_to_port (drivers/char/virtio_console.c:654) [ 45.539880][ T10] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 45.539884][ T10] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 45.539887][ T10] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 45.539890][ T10] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 45.539894][ T10] ? mark_usage (kernel/locking/lockdep.c:4690) [ 45.539896][ T10] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.539897][ T10] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.539901][ T10] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 45.539903][ T10] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 45.539906][ T10] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.539909][ T10] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.539912][ T10] console_emit_next_record (kernel/printk/printk.c:3183) [ 45.539916][ T10] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 45.539918][ T10] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 45.539921][ T10] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.539923][ T10] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.539927][ T10] console_flush_one_record (kernel/printk/printk.c:3268) [ 45.539932][ T10] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 45.539934][ T10] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.539939][ T10] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 45.539941][ T10] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 45.539943][ T10] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.539946][ T10] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 45.539949][ T10] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 45.539951][ T10] ? vprintk_emit (kernel/printk/printk.c:2478) [ 45.539954][ T10] vprintk_emit (kernel/printk/printk.c:2479) [ 45.539958][ T10] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 45.539961][ T10] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 45.539965][ T10] _printk (kernel/printk/printk.c:2504) [ 45.539968][ T10] ? snapshot_read.cold (user.c:?) [ 45.539970][ T10] ? try_to_wake_up (./include/linux/preempt.h:500 (discriminator 1) kernel/sched/core.c:4263 (discriminator 1)) [ 45.539973][ T10] ? select_fallback_rq (kernel/sched/sched.h:1424) [ 45.539975][ T10] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 45.539979][ T10] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 45.539982][ T10] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 45.539985][ T10] ? netdev_notice (net/core/dev.c:13194) [ 45.539990][ T10] ? __queue_work (./include/linux/rcupdate.h:882 kernel/workqueue.c:2459) [ 45.539995][ T10] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn [ 45.540000][ T10] ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn [ 45.540003][ T10] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 45.540006][ T10] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 45.540007][ T10] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 45.540013][ T10] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn [ 45.540016][ T10] ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn [ 45.540019][ T10] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 45.540021][ T10] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 45.540025][ T10] ovpn_peer_keepalive_work_single (drivers/net/ovpn/peer.c:1347) ovpn [ 45.540029][ T10] ? ovpn_peers_release_mp (drivers/net/ovpn/peer.c:1290) ovpn [ 45.540032][ T10] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 45.540037][ T10] ovpn_peer_keepalive_work (drivers/net/ovpn/peer.c:1423 drivers/net/ovpn/peer.c:1456) ovpn [ 45.540041][ T10] ? process_one_work (kernel/workqueue.c:3363 (discriminator 2)) [ 45.540044][ T10] ? ovpn_peers_free (drivers/net/ovpn/peer.c:1307) ovpn [ 45.540047][ T10] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.540049][ T10] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.540051][ T10] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.540055][ T10] ? process_one_work (kernel/workqueue.c:3363 (discriminator 2)) [ 45.540056][ T10] process_one_work (kernel/workqueue.c:3387) [ 45.540063][ T10] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 45.540065][ T10] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 45.540073][ T10] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 45.540083][ T10] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 45.540085][ T10] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 45.540088][ T10] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 45.540090][ T10] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 45.540092][ T10] kthread (kernel/kthread.c:436) [ 45.540094][ T10] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 45.540097][ T10] ? kthread_affine_preferred (kernel/kthread.c:857) [ 45.540100][ T10] ret_from_fork (arch/x86/kernel/process.c:158) [ 45.540104][ T10] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 45.540107][ T10] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 45.540110][ T10] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print ovpn_peer_del:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print ovpn_peer_keepalive_work:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print