====================================== | [ 9.417156][ T91] softirqs last disabled at (352790): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.417158][ T91] Preemption disabled at: | [ 9.417159][ T91] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.417168][ T91] Tainted: [W]=WARN [ 9.417168][ T91] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.417170][ T91] Call Trace: [ 9.417172][ T91] [ 9.417174][ T91] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.417179][ T91] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.417182][ T91] __might_resched.cold (kernel/sched/core.c:9234) [ 9.417186][ T91] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.417190][ T91] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.417196][ T91] __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)) [ 9.417198][ T91] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.417204][ T91] ? 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) [ 9.417207][ T91] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.417210][ T91] put_chars (drivers/char/virtio_console.c:1176) [ 9.417213][ T91] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.417217][ T91] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.417222][ T91] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.417224][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417230][ T91] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.417232][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.417239][ T91] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.417243][ T91] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.417248][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.417250][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.417254][ T91] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.417258][ T91] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.417260][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417266][ T91] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.417268][ T91] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.417270][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.417272][ T91] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.417276][ T91] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.417277][ T91] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.417281][ T91] vprintk_emit (kernel/printk/printk.c:2479) [ 9.417284][ T91] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.417287][ T91] ? write_profile (profile.c:?) [ 9.417290][ T91] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.417297][ T91] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.417302][ T91] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.417307][ T91] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.417314][ T91] dev_printk_emit (drivers/base/core.c:5011) [ 9.417316][ T91] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.417322][ T91] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.417328][ T91] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.417333][ T91] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.417336][ T91] ? netdev_notice (net/core/dev.c:13194) [ 9.417338][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.417343][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.417345][ T91] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.417348][ T91] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.417351][ T91] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.417354][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417356][ T91] ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898) [ 9.417358][ T91] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 9.417362][ T91] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.417364][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.417368][ T91] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.417374][ T91] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.417377][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417380][ T91] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.417381][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.417383][ T91] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.417385][ T91] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.417388][ T91] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.417392][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417397][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.417399][ T91] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.417402][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.417404][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.417406][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.417407][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.417409][ T91] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.417412][ T91] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 9.417415][ T91] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.417417][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417419][ T91] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.417421][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.417424][ T91] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.417425][ T91] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.417432][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.417435][ T91] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.417444][ T91] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.417448][ T91] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.417449][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417474][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.417476][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.417479][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.417481][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.417483][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417487][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.417489][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.417492][ T91] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.417494][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.417498][ T91] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.417500][ T91] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.417504][ T91] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.417505][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417510][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.417512][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.417516][ T91] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.417520][ T91] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.417523][ T91] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.417530][ T91] ? 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)) [ 9.417532][ T91] ? 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)) [ 9.417537][ T91] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.417542][ T91] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.417544][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.417549][ T91] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.417554][ T91] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.417557][ T91] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.417561][ T91] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.417565][ T91] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.417569][ T91] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.417580][ T91] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 9.417586][ T91] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.417588][ T91] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.417592][ T91] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.417594][ T91] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.417596][ T91] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.417597][ T91] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.417600][ T91] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.417602][ T91] RIP: 0033:0x7f1faf93554e [ 9.417607][ T91] 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 [ 9.417608][ T91] RSP: 002b:00007fff8f83f220 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.417612][ T91] RAX: ffffffffffffffda RBX: 000055f6d1cb0f40 RCX: 00007f1faf93554e [ 9.417613][ T91] RDX: 0000000000000030 RSI: 000055f6d1e24f60 RDI: 0000000000000024 [ 9.417614][ T91] RBP: 00007fff8f83f230 R08: 00007fff8f83f280 R09: 0000000000000080 [ 9.417615][ T91] R10: 0000000000000000 R11: 0000000000000202 R12: 000055f6d1e26370 [ 9.417616][ T91] R13: 00007fff8f83f364 R14: 0000000000000000 R15: 0000000000000000 | [ 13.521076][ T91] softirqs last disabled at (377754): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 13.521079][ T91] Preemption disabled at: | [ 13.521079][ T91] 0x0 | [ 13.521091][ T91] Tainted: [W]=WARN [ 13.521092][ T91] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.521093][ T91] Call Trace: [ 13.521095][ T91] [ 13.521097][ T91] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.521104][ T91] __might_resched.cold (kernel/sched/core.c:9234) [ 13.521108][ T91] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.521112][ T91] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.521117][ T91] __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)) [ 13.521119][ T91] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.521124][ T91] ? 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) [ 13.521126][ T91] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.521130][ T91] put_chars (drivers/char/virtio_console.c:1176) [ 13.521133][ T91] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.521134][ T91] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 13.521137][ T91] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.521140][ T91] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.521144][ T91] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.521148][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.521149][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.521153][ T91] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.521156][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.521162][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.521166][ T91] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.521170][ T91] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.521174][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.521177][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.521180][ T91] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.521184][ T91] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.521186][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.521191][ T91] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.521194][ T91] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.521195][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.521198][ T91] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.521201][ T91] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.521203][ T91] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.521206][ T91] vprintk_emit (kernel/printk/printk.c:2479) [ 13.521209][ T91] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.521213][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.521216][ T91] _printk (kernel/printk/printk.c:2504) [ 13.521220][ T91] ? snapshot_read.cold (user.c:?) [ 13.521223][ T91] ? 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) [ 13.521225][ T91] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.521229][ T91] ? 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) [ 13.521232][ T91] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.521235][ T91] ? exit_notify (kernel/exit.c:780) [ 13.521237][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.521240][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.521244][ T91] do_group_exit (kernel/exit.c:1151) [ 13.521247][ T91] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.521249][ T91] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.521252][ T91] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.521255][ T91] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.521258][ T91] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.521261][ T91] RIP: 0033:0x7f1faf9861b8 [ 13.521263][ T91] Code: Unable to access opcode bytes at 0x7f1faf98618e. Code starting with the faulting instruction =========================================== [ 13.521264][ T91] RSP: 002b:00007fff8f83f778 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.521267][ T91] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1faf9861b8 [ 13.521268][ T91] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.521270][ T91] RBP: 00007fff8f83f900 R08: 000055f6d1e1bfe8 R09: 0000000000000000 [ 13.521270][ T91] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print