====================================== | [ 9.093988][ T84] softirqs last disabled at (333388): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.093990][ T84] Preemption disabled at: | [ 9.093991][ T84] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.093999][ T84] Tainted: [W]=WARN [ 9.094000][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.094002][ T84] Call Trace: [ 9.094004][ T84] [ 9.094005][ T84] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.094011][ T84] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.094012][ T84] __might_resched.cold (kernel/sched/core.c:9234) [ 9.094017][ T84] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.094021][ T84] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.094026][ T84] __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)) [ 9.094028][ T84] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.094033][ T84] ? 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) [ 9.094035][ T84] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.094038][ T84] put_chars (drivers/char/virtio_console.c:1176) [ 9.094041][ T84] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.094044][ T84] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.094049][ T84] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.094052][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094057][ T84] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.094059][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.094065][ T84] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.094069][ T84] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.094073][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.094075][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.094079][ T84] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.094082][ T84] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.094084][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094089][ T84] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.094092][ T84] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.094093][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.094095][ T84] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.094099][ T84] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.094100][ T84] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.094103][ T84] vprintk_emit (kernel/printk/printk.c:2479) [ 9.094106][ T84] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.094109][ T84] ? write_profile (profile.c:?) [ 9.094112][ T84] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.094118][ T84] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.094123][ T84] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.094127][ T84] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.094133][ T84] dev_printk_emit (drivers/base/core.c:5011) [ 9.094136][ T84] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.094140][ T84] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.094144][ T84] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.094150][ T84] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.094152][ T84] ? netdev_notice (net/core/dev.c:13194) [ 9.094154][ T84] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.094158][ T84] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.094160][ T84] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.094163][ T84] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.094166][ T84] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.094169][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094170][ T84] ? 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) [ 9.094173][ T84] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 9.094176][ T84] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.094178][ T84] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.094181][ T84] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.094187][ T84] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.094190][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094192][ T84] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.094194][ T84] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.094195][ T84] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.094198][ T84] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.094200][ T84] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.094204][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094209][ T84] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.094210][ T84] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.094218][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.094220][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.094221][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.094223][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.094225][ T84] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.094227][ T84] ? __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) [ 9.094230][ T84] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.094232][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094233][ T84] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.094236][ T84] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.094238][ T84] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.094240][ T84] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.094247][ T84] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.094250][ T84] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.094258][ T84] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.094261][ T84] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.094263][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094285][ T84] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.094287][ T84] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.094290][ T84] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.094291][ T84] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.094293][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094297][ T84] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.094299][ T84] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.094301][ T84] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.094303][ T84] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.094307][ T84] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.094309][ T84] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.094313][ T84] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.094314][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094318][ T84] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.094320][ T84] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.094324][ T84] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.094327][ T84] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.094330][ T84] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.094337][ T84] ? 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)) [ 9.094339][ T84] ? 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)) [ 9.094343][ T84] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.094347][ T84] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.094350][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.094354][ T84] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.094358][ T84] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.094362][ T84] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.094365][ T84] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.094369][ T84] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.094372][ T84] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.094386][ T84] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.094387][ T84] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.094391][ T84] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.094394][ T84] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.094395][ T84] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.094396][ T84] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.094399][ T84] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.094401][ T84] RIP: 0033:0x7f508e99054e [ 9.094405][ T84] 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 [ 9.094407][ T84] RSP: 002b:00007fffd9e908b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.094409][ T84] RAX: ffffffffffffffda RBX: 000055fa4c4f8f40 RCX: 00007f508e99054e [ 9.094411][ T84] RDX: 0000000000000030 RSI: 000055fa4c6519c0 RDI: 0000000000000016 [ 9.094412][ T84] RBP: 00007fffd9e908c0 R08: 00007fffd9e90910 R09: 0000000000000080 [ 9.094412][ T84] R10: 0000000000000000 R11: 0000000000000202 R12: 000055fa4c654410 [ 9.094413][ T84] R13: 00007fffd9e909f4 R14: 0000000000000000 R15: 0000000000000000 | [ 13.200018][ T84] softirqs last disabled at (366670): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 13.200021][ T84] Preemption disabled at: | [ 13.200021][ T84] 0x0 | [ 13.200031][ T84] Tainted: [W]=WARN [ 13.200032][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.200034][ T84] Call Trace: [ 13.200035][ T84] [ 13.200037][ T84] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.200043][ T84] __might_resched.cold (kernel/sched/core.c:9234) [ 13.200048][ T84] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.200051][ T84] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.200056][ T84] __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)) [ 13.200058][ T84] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.200064][ T84] ? 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) [ 13.200066][ T84] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.200069][ T84] put_chars (drivers/char/virtio_console.c:1176) [ 13.200071][ T84] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.200073][ T84] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 13.200076][ T84] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.200079][ T84] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.200083][ T84] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.200085][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.200087][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.200091][ T84] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.200094][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.200097][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.200100][ T84] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.200104][ T84] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.200108][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.200110][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.200114][ T84] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.200117][ T84] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.200119][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.200124][ T84] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.200126][ T84] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.200128][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.200130][ T84] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.200133][ T84] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.200134][ T84] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.200138][ T84] vprintk_emit (kernel/printk/printk.c:2479) [ 13.200141][ T84] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.200144][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.200147][ T84] _printk (kernel/printk/printk.c:2504) [ 13.200151][ T84] ? snapshot_read.cold (user.c:?) [ 13.200154][ T84] ? 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) [ 13.200156][ T84] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.200159][ T84] ? 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) [ 13.200162][ T84] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.200165][ T84] ? exit_notify (kernel/exit.c:780) [ 13.200167][ T84] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.200169][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.200173][ T84] do_group_exit (kernel/exit.c:1151) [ 13.200177][ T84] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.200179][ T84] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.200181][ T84] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.200184][ T84] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.200187][ T84] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.200189][ T84] RIP: 0033:0x7f508e9e11b8 [ 13.200191][ T84] Code: Unable to access opcode bytes at 0x7f508e9e118e. Code starting with the faulting instruction =========================================== [ 13.200193][ T84] RSP: 002b:00007fffd9e90e08 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.200195][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f508e9e11b8 [ 13.200197][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.200197][ T84] RBP: 00007fffd9e90f90 R08: 000055fa4c649b28 R09: 0000000000000000 [ 13.200198][ T84] 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