====================================== | [ 9.589362][ T87] softirqs last disabled at (413854): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.589365][ T87] Preemption disabled at: | [ 9.589365][ T87] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.589375][ T87] Tainted: [W]=WARN [ 9.589376][ T87] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.589378][ T87] Call Trace: [ 9.589380][ T87] [ 9.589381][ T87] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.589387][ T87] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.589389][ T87] __might_resched.cold (kernel/sched/core.c:9234) [ 9.589394][ T87] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.589398][ T87] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.589403][ T87] __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)) [ 9.589405][ T87] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.589411][ T87] ? 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) [ 9.589413][ T87] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.589417][ T87] put_chars (drivers/char/virtio_console.c:1176) [ 9.589420][ T87] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.589423][ T87] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.589428][ T87] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.589431][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589436][ T87] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.589438][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.589445][ T87] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.589448][ T87] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.589453][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.589455][ T87] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.589459][ T87] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.589463][ T87] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.589465][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589470][ T87] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.589472][ T87] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.589474][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.589476][ T87] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.589480][ T87] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.589481][ T87] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.589484][ T87] vprintk_emit (kernel/printk/printk.c:2479) [ 9.589488][ T87] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.589490][ T87] ? write_profile (profile.c:?) [ 9.589493][ T87] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.589500][ T87] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.589511][ T87] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.589516][ T87] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.589522][ T87] dev_printk_emit (drivers/base/core.c:5011) [ 9.589525][ T87] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.589529][ T87] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.589534][ T87] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.589540][ T87] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.589542][ T87] ? netdev_notice (net/core/dev.c:13194) [ 9.589544][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.589548][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.589551][ T87] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.589554][ T87] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.589556][ T87] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.589560][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589561][ T87] ? 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) [ 9.589564][ T87] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 9.589567][ T87] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.589569][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.589572][ T87] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.589578][ T87] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.589581][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589584][ T87] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.589586][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.589587][ T87] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.589590][ T87] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.589592][ T87] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.589597][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589601][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.589603][ T87] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.589606][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.589608][ T87] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.589609][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.589611][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.589613][ T87] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.589616][ T87] ? __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) [ 9.589619][ T87] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.589620][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589622][ T87] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.589624][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.589627][ T87] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.589628][ T87] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.589635][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.589638][ T87] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.589646][ T87] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.589649][ T87] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.589651][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589675][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.589676][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.589680][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.589681][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.589683][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589688][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.589689][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.589692][ T87] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.589694][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.589697][ T87] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.589700][ T87] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.589703][ T87] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.589705][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589709][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.589711][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.589715][ T87] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.589718][ T87] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.589722][ T87] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.589729][ T87] ? 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)) [ 9.589731][ T87] ? 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)) [ 9.589735][ T87] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.589740][ T87] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.589742][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.589747][ T87] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.589751][ T87] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.589755][ T87] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.589759][ T87] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.589762][ T87] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.589766][ T87] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.589777][ T87] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 9.589783][ T87] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.589785][ T87] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.589789][ T87] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.589791][ T87] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.589792][ T87] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.589794][ T87] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.589797][ T87] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.589799][ T87] RIP: 0033:0x7fd7d36b854e [ 9.589803][ T87] 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 [ 9.589805][ T87] RSP: 002b:00007fffdcfe6f20 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.589807][ T87] RAX: ffffffffffffffda RBX: 0000560cad41bf70 RCX: 00007fd7d36b854e [ 9.589809][ T87] RDX: 0000000000000030 RSI: 0000560cad41a620 RDI: 000000000000001e [ 9.589810][ T87] RBP: 00007fffdcfe6f30 R08: 00007fffdcfe6f80 R09: 0000000000000080 [ 9.589810][ T87] R10: 0000000000000000 R11: 0000000000000202 R12: 0000560cad571360 [ 9.589811][ T87] R13: 00007fffdcfe7064 R14: 0000000000000000 R15: 0000000000000000 | [ 13.711881][ T87] softirqs last disabled at (449686): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 13.711884][ T87] Preemption disabled at: | [ 13.711885][ T87] 0x0 | [ 13.711897][ T87] Tainted: [W]=WARN [ 13.711898][ T87] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.711900][ T87] Call Trace: [ 13.711902][ T87] [ 13.711904][ T87] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.711911][ T87] __might_resched.cold (kernel/sched/core.c:9234) [ 13.711916][ T87] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.711920][ T87] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.711925][ T87] __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)) [ 13.711927][ T87] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.711932][ T87] ? 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) [ 13.711935][ T87] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.711938][ T87] put_chars (drivers/char/virtio_console.c:1176) [ 13.711941][ T87] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.711942][ T87] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 13.711946][ T87] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.711949][ T87] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.711953][ T87] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.711956][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.711957][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.711961][ T87] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.711965][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.711968][ T87] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.711971][ T87] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.711975][ T87] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.711979][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.711982][ T87] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.711985][ T87] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.711990][ T87] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.711991][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.711996][ T87] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.711999][ T87] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.712001][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.712003][ T87] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.712006][ T87] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.712008][ T87] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.712011][ T87] vprintk_emit (kernel/printk/printk.c:2479) [ 13.712015][ T87] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.712018][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.712022][ T87] _printk (kernel/printk/printk.c:2504) [ 13.712026][ T87] ? snapshot_read.cold (user.c:?) [ 13.712028][ T87] ? 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) [ 13.712031][ T87] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.712034][ T87] ? 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) [ 13.712037][ T87] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.712041][ T87] ? exit_notify (kernel/exit.c:780) [ 13.712043][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.712045][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.712049][ T87] do_group_exit (kernel/exit.c:1151) [ 13.712053][ T87] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.712055][ T87] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.712058][ T87] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.712061][ T87] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.712064][ T87] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.712066][ T87] RIP: 0033:0x7fd7d37091b8 [ 13.712068][ T87] Code: Unable to access opcode bytes at 0x7fd7d370918e. Code starting with the faulting instruction =========================================== [ 13.712070][ T87] RSP: 002b:00007fffdcfe7478 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.712072][ T87] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd7d37091b8 [ 13.712074][ T87] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.712074][ T87] RBP: 00007fffdcfe7600 R08: 0000560cad417af8 R09: 0000000000000000 [ 13.712075][ T87] 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