====================================== | [ 9.398457][ T201] softirqs last disabled at (19532): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 9.398460][ T201] Preemption disabled at: | [ 9.398460][ T201] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.398469][ T201] Tainted: [W]=WARN [ 9.398470][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.398471][ T201] Call Trace: [ 9.398473][ T201] [ 9.398475][ T201] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.398480][ T201] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.398482][ T201] __might_resched.cold (kernel/sched/core.c:9234) [ 9.398487][ T201] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.398491][ T201] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.398496][ T201] __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)) [ 9.398499][ T201] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.398505][ T201] ? 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) [ 9.398508][ T201] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.398511][ T201] put_chars (drivers/char/virtio_console.c:1176) [ 9.398514][ T201] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.398522][ T201] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.398529][ T201] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.398532][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.398536][ T201] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.398540][ T201] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.398542][ T201] ? 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)) [ 9.398545][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.398549][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.398554][ T201] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.398558][ T201] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.398560][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.398566][ T201] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.398568][ T201] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.398570][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.398573][ T201] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.398577][ T201] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.398578][ T201] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.398582][ T201] vprintk_emit (kernel/printk/printk.c:2479) [ 9.398585][ T201] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.398587][ T201] ? kasan_save_stack (mm/kasan/common.c:58) [ 9.398591][ T201] ? kasan_save_track (mm/kasan/common.c:78) [ 9.398592][ T201] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 9.398594][ T201] ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563) [ 9.398595][ T201] ? hsr_add_port (./include/linux/slab.h:991 (discriminator 1) ./include/linux/slab.h:1312 (discriminator 1) net/hsr/hsr_slave.c:201 (discriminator 1)) [ 9.398599][ T201] ? hsr_dev_finalize (net/hsr/hsr_device.c:826) [ 9.398601][ T201] ? hsr_newlink (net/hsr/hsr_netlink.c:127) [ 9.398604][ T201] _printk (kernel/printk/printk.c:2504) [ 9.398608][ T201] ? snapshot_read.cold (user.c:?) [ 9.398609][ T201] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.398614][ T201] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 9.398617][ T201] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 9.398621][ T201] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.398623][ T201] ? netdev_notice (net/core/dev.c:13194) [ 9.398631][ T201] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 9.398635][ T201] __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3)) [ 9.398640][ T201] netif_set_promiscuity (net/core/dev.c:9699) [ 9.398644][ T201] dev_set_promiscuity (net/core/dev_api.c:288) [ 9.398647][ T201] hsr_add_port (net/hsr/hsr_slave.c:155 net/hsr/hsr_slave.c:213) [ 9.398651][ T201] ? hsr_port_exists (net/hsr/hsr_slave.c:97) [ 9.398654][ T201] ? timer_init_key (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 ./include/linux/lockdep.h:148 kernel/time/timer.c:861 kernel/time/timer.c:881) [ 9.398659][ T201] hsr_dev_finalize (net/hsr/hsr_device.c:826) [ 9.398661][ T201] ? alloc_netdev_mqs (net/core/dev.c:12198 (discriminator 10)) [ 9.398666][ T201] ? alloc_netdev_mqs (net/core/dev.c:12209) [ 9.398668][ T201] hsr_newlink (net/hsr/hsr_netlink.c:127) [ 9.398671][ T201] ? hsr_dellink (net/hsr/hsr_netlink.c:147) [ 9.398674][ T201] ? rtnl_create_link (net/core/rtnetlink.c:3785) [ 9.398676][ T201] ? nla_strscpy (lib/nlattr.c:795) [ 9.398681][ T201] rtnl_newlink_create (net/core/rtnetlink.c:3969) [ 9.398685][ T201] ? rtnl_create_link (net/core/rtnetlink.c:3756) [ 9.398686][ T201] ? __dev_get_by_name (net/core/dev.c:905) [ 9.398688][ T201] ? rtnl_dev_get (net/core/rtnetlink.c:3538) [ 9.398698][ T201] __rtnl_newlink (net/core/rtnetlink.c:4098) [ 9.398705][ T201] rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.398712][ T201] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.398714][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.398721][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.398725][ T201] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.398727][ T201] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.398731][ T201] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.398732][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.398737][ T201] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.398739][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.398743][ T201] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.398746][ T201] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.398750][ T201] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.398757][ T201] ? 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)) [ 9.398759][ T201] ? 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)) [ 9.398764][ T201] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.398768][ T201] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.398771][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.398776][ T201] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.398780][ T201] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.398785][ T201] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.398790][ T201] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 9.398794][ T201] ? copy_msghdr_from_user (net/socket.c:2650) [ 9.398797][ T201] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 9.398798][ T201] ? move_addr_to_kernel (net/socket.c:258) [ 9.398807][ T201] ___sys_sendmsg (net/socket.c:2767) [ 9.398810][ T201] ? copy_msghdr_from_user (net/socket.c:2619) [ 9.398828][ T201] __sys_sendmsg (net/socket.c:2799) [ 9.398831][ T201] ? __sys_sendmsg_sock (net/socket.c:2780) [ 9.398839][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.398843][ T201] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.398845][ T201] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.398849][ T201] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.398850][ T201] RIP: 0033:0x7f75aae9154e [ 9.398854][ T201] 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 [ 9.398856][ T201] RSP: 002b:00007fff57056510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.398858][ T201] RAX: ffffffffffffffda RBX: 00007fff57056cc0 RCX: 00007f75aae9154e [ 9.398860][ T201] RDX: 0000000000000000 RSI: 00007fff570565c0 RDI: 0000000000000005 [ 9.398861][ T201] RBP: 00007fff57056520 R08: 0000000000000000 R09: 0000000000000000 [ 9.398861][ T201] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919f99 [ 9.398862][ T201] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff57056c90 | [ 16.202870][ T69] softirqs last disabled at (25008): release_sock (./include/linux/spinlock.h:353 net/core/sock.c:3858) | [ 16.202873][ T69] Preemption disabled at: | [ 16.202873][ T69] vprintk_emit (kernel/printk/printk.c:2471) | [ 16.202883][ T69] Tainted: [W]=WARN [ 16.202884][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.202885][ T69] Workqueue: netns cleanup_net [ 16.202889][ T69] Call Trace: [ 16.202891][ T69] [ 16.202893][ T69] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.202899][ T69] ? vprintk_emit (kernel/printk/printk.c:2471) [ 16.202901][ T69] __might_resched.cold (kernel/sched/core.c:9234) [ 16.202906][ T69] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.202910][ T69] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.202914][ T69] __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)) [ 16.202917][ T69] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.202922][ T69] ? 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) [ 16.202925][ T69] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.202928][ T69] put_chars (drivers/char/virtio_console.c:1176) [ 16.202930][ T69] ? check_prev_add (kernel/locking/lockdep.c:3185) [ 16.202933][ T69] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.202936][ T69] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 16.202941][ T69] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.202947][ T69] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.202950][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.202954][ T69] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.202958][ T69] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.202962][ T69] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.202964][ T69] ? 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)) [ 16.202967][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.202969][ T69] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.202973][ T69] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.202977][ T69] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.202979][ T69] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.202984][ T69] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.202987][ T69] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.202989][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.202991][ T69] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.202995][ T69] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.202996][ T69] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.203000][ T69] vprintk_emit (kernel/printk/printk.c:2479) [ 16.203003][ T69] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.203006][ T69] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 16.203008][ T69] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.203011][ T69] ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369) [ 16.203013][ T69] ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369) [ 16.203016][ T69] _printk (kernel/printk/printk.c:2504) [ 16.203020][ T69] ? snapshot_read.cold (user.c:?) [ 16.203023][ T69] ? synchronize_rcu_expedited (kernel/rcu/tree_exp.h:985) [ 16.203026][ T69] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 16.203029][ T69] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 16.203033][ T69] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 16.203035][ T69] ? netdev_notice (net/core/dev.c:13194) [ 16.203039][ T69] ? synchronize_rcu_expedited (kernel/rcu/tree_exp.h:985) [ 16.203040][ T69] ? netif_set_mtu_ext (net/core/dev.c:9910 (discriminator 2)) [ 16.203042][ T69] ? synchronize_rcu_normal (kernel/rcu/tree.c:3360) [ 16.203046][ T69] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 16.203050][ T69] __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3)) [ 16.203052][ T69] ? sync_rcu_exp_select_cpus (./include/linux/list.h:54 (discriminator 2)) [ 16.203055][ T69] netif_set_promiscuity (net/core/dev.c:9699) [ 16.203059][ T69] dev_set_promiscuity (net/core/dev_api.c:288) [ 16.203062][ T69] hsr_del_port (net/hsr/hsr_slave.c:244) [ 16.203067][ T69] hsr_del_ports (net/hsr/hsr_device.c:498) [ 16.203070][ T69] hsr_dellink (net/hsr/hsr_netlink.c:141) [ 16.203072][ T69] default_device_exit_batch (net/core/dev.c:13280) [ 16.203076][ T69] ? unregister_netdevice_queue (./include/linux/list.h:173) [ 16.203078][ T69] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.203081][ T69] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 16.203084][ T69] ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253) [ 16.203088][ T69] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.203090][ T69] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 16.203092][ T69] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.203095][ T69] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 16.203099][ T69] cleanup_net (net/core/net_namespace.c:706) [ 16.203102][ T69] ? net_passive_dec (./include/linux/llist.h:241) [ 16.203106][ T69] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.203108][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.203112][ T69] process_one_work (kernel/workqueue.c:3387) [ 16.203118][ T69] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 16.203121][ T69] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.203128][ T69] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 16.203132][ T69] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.203134][ T69] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 16.203138][ T69] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.203141][ T69] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.203143][ T69] kthread (kernel/kthread.c:436) [ 16.203145][ T69] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.203147][ T69] ? kthread_affine_preferred (kernel/kthread.c:857) [ 16.203150][ T69] ret_from_fork (arch/x86/kernel/process.c:158) [ 16.203154][ T69] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 16.203157][ T69] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 16.203160][ T69] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: release_sock:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars