====================================== | [ 10.308121][ T201] softirqs last disabled at (31970): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 10.308124][ T201] Preemption disabled at: | [ 10.308125][ T201] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.308135][ T201] Tainted: [W]=WARN [ 10.308135][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.308137][ T201] Call Trace: [ 10.308139][ T201] [ 10.308140][ T201] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.308146][ T201] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.308149][ T201] __might_resched.cold (kernel/sched/core.c:9234) [ 10.308153][ T201] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.308160][ 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) [ 10.308165][ 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)) [ 10.308168][ T201] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.308174][ 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) [ 10.308177][ T201] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.308180][ T201] put_chars (drivers/char/virtio_console.c:1176) [ 10.308183][ T201] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.308190][ T201] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.308197][ T201] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.308200][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.308204][ T201] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.308208][ T201] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.308210][ 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)) [ 10.308213][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.308217][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.308221][ T201] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.308225][ T201] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.308227][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.308232][ T201] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.308235][ T201] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.308237][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.308239][ T201] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.308243][ T201] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.308244][ T201] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.308248][ T201] vprintk_emit (kernel/printk/printk.c:2479) [ 10.308251][ T201] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.308253][ T201] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.308256][ T201] ? kasan_save_track (mm/kasan/common.c:78) [ 10.308258][ T201] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.308260][ T201] ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563) [ 10.308261][ 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)) [ 10.308265][ T201] ? hsr_dev_finalize (net/hsr/hsr_device.c:826) [ 10.308267][ T201] ? hsr_newlink (net/hsr/hsr_netlink.c:127) [ 10.308270][ T201] _printk (kernel/printk/printk.c:2504) [ 10.308274][ T201] ? snapshot_read.cold (user.c:?) [ 10.308275][ T201] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.308280][ T201] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.308283][ T201] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.308286][ T201] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.308288][ T201] ? netdev_notice (net/core/dev.c:13194) [ 10.308295][ 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) [ 10.308299][ T201] __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3)) [ 10.308303][ T201] netif_set_promiscuity (net/core/dev.c:9699) [ 10.308308][ T201] dev_set_promiscuity (net/core/dev_api.c:288) [ 10.308311][ T201] hsr_add_port (net/hsr/hsr_slave.c:155 net/hsr/hsr_slave.c:213) [ 10.308314][ T201] ? hsr_port_exists (net/hsr/hsr_slave.c:97) [ 10.308322][ 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) [ 10.308328][ T201] hsr_dev_finalize (net/hsr/hsr_device.c:826) [ 10.308330][ T201] ? alloc_netdev_mqs (net/core/dev.c:12198 (discriminator 10)) [ 10.308335][ T201] ? alloc_netdev_mqs (net/core/dev.c:12209) [ 10.308337][ T201] hsr_newlink (net/hsr/hsr_netlink.c:127) [ 10.308340][ T201] ? hsr_dellink (net/hsr/hsr_netlink.c:147) [ 10.308342][ T201] ? rtnl_create_link (net/core/rtnetlink.c:3785) [ 10.308344][ T201] ? nla_strscpy (lib/nlattr.c:795) [ 10.308349][ T201] rtnl_newlink_create (net/core/rtnetlink.c:3969) [ 10.308353][ T201] ? rtnl_create_link (net/core/rtnetlink.c:3756) [ 10.308354][ T201] ? __dev_get_by_name (net/core/dev.c:905) [ 10.308356][ T201] ? rtnl_dev_get (net/core/rtnetlink.c:3538) [ 10.308365][ T201] __rtnl_newlink (net/core/rtnetlink.c:4098) [ 10.308371][ T201] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.308377][ T201] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.308379][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.308386][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.308389][ T201] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.308392][ T201] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.308395][ T201] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.308396][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.308401][ T201] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.308403][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.308406][ T201] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.308410][ T201] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.308413][ T201] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.308420][ 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)) [ 10.308422][ 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)) [ 10.308426][ T201] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.308431][ T201] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.308433][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.308438][ T201] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.308442][ T201] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.308446][ T201] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.308452][ T201] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 10.308455][ T201] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.308458][ T201] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 10.308460][ T201] ? move_addr_to_kernel (net/socket.c:258) [ 10.308467][ T201] ___sys_sendmsg (net/socket.c:2767) [ 10.308470][ T201] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.308487][ T201] __sys_sendmsg (net/socket.c:2799) [ 10.308490][ T201] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.308496][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.308500][ T201] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.308503][ T201] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.308506][ T201] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.308508][ T201] RIP: 0033:0x7fa42057554e [ 10.308512][ 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 [ 10.308514][ T201] RSP: 002b:00007fffadca8300 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.308516][ T201] RAX: ffffffffffffffda RBX: 00007fffadca8ab0 RCX: 00007fa42057554e [ 10.308518][ T201] RDX: 0000000000000000 RSI: 00007fffadca83b0 RDI: 0000000000000005 [ 10.308519][ T201] RBP: 00007fffadca8310 R08: 0000000000000000 R09: 0000000000000000 [ 10.308520][ T201] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918ae5 [ 10.308521][ T201] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffadca8a80 | [ 17.191712][ T12] softirqs last disabled at (17862): release_sock (./include/linux/spinlock.h:353 net/core/sock.c:3858) | [ 17.191715][ T12] Preemption disabled at: | [ 17.191716][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 17.191725][ T12] Tainted: [W]=WARN [ 17.191726][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.191727][ T12] Workqueue: netns cleanup_net [ 17.191731][ T12] Call Trace: [ 17.191733][ T12] [ 17.191735][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.191741][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 17.191743][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 17.191748][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.191752][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.191757][ T12] __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)) [ 17.191759][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.191765][ T12] ? 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) [ 17.191768][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.191771][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 17.191774][ T12] ? check_prev_add (kernel/locking/lockdep.c:3185) [ 17.191776][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.191779][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 17.191784][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.191791][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.191794][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.191798][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.191802][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.191806][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.191808][ T12] ? 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)) [ 17.191811][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.191813][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.191817][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.191822][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.191824][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.191829][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.191832][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.191834][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.191836][ T12] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 17.191840][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.191842][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.191845][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 17.191849][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.191852][ T12] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 17.191854][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 17.191857][ T12] ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369) [ 17.191858][ T12] ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369) [ 17.191862][ T12] _printk (kernel/printk/printk.c:2504) [ 17.191866][ T12] ? snapshot_read.cold (user.c:?) [ 17.191869][ T12] ? synchronize_rcu_expedited (kernel/rcu/tree_exp.h:985) [ 17.191872][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 17.191875][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 17.191879][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 17.191881][ T12] ? netdev_notice (net/core/dev.c:13194) [ 17.191885][ T12] ? synchronize_rcu_expedited (kernel/rcu/tree_exp.h:985) [ 17.191887][ T12] ? netif_set_mtu_ext (net/core/dev.c:9910 (discriminator 2)) [ 17.191889][ T12] ? synchronize_rcu_normal (kernel/rcu/tree.c:3360) [ 17.191893][ T12] ? 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) [ 17.191897][ T12] __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3)) [ 17.191900][ T12] ? sync_rcu_exp_select_cpus (./include/linux/list.h:54 (discriminator 2)) [ 17.191902][ T12] netif_set_promiscuity (net/core/dev.c:9699) [ 17.191907][ T12] dev_set_promiscuity (net/core/dev_api.c:288) [ 17.191910][ T12] hsr_del_port (net/hsr/hsr_slave.c:244) [ 17.191915][ T12] hsr_del_ports (net/hsr/hsr_device.c:498) [ 17.191918][ T12] hsr_dellink (net/hsr/hsr_netlink.c:141) [ 17.191920][ T12] default_device_exit_batch (net/core/dev.c:13280) [ 17.191924][ T12] ? unregister_netdevice_queue (./include/linux/list.h:173) [ 17.191927][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.191929][ T12] ? 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) [ 17.191933][ T12] ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253) [ 17.191937][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 17.191939][ T12] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 17.191941][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.191944][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 17.191949][ T12] cleanup_net (net/core/net_namespace.c:706) [ 17.191952][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 17.191956][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.191958][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.191962][ T12] process_one_work (kernel/workqueue.c:3387) [ 17.191969][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 17.191972][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.191979][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 17.191986][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.191989][ T12] kthread (kernel/kthread.c:436) [ 17.191992][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.191995][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.191997][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 17.192001][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 17.192005][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 17.192008][ T12] ? 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