====================================== | [ 11.138018][ T184] softirqs last disabled at (264780): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.138020][ T184] Preemption disabled at: | [ 11.138021][ T184] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.138030][ T184] Tainted: [W]=WARN [ 11.138031][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.138033][ T184] Call Trace: [ 11.138035][ T184] [ 11.138037][ T184] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.138043][ T184] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.138045][ T184] __might_resched.cold (kernel/sched/core.c:9234) [ 11.138049][ T184] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.138053][ T184] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.138059][ T184] __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)) [ 11.138062][ T184] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.138069][ T184] ? 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) [ 11.138071][ T184] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.138075][ T184] put_chars (drivers/char/virtio_console.c:1176) [ 11.138079][ T184] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.138082][ T184] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.138088][ T184] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.138091][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138096][ T184] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.138099][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.138105][ T184] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.138110][ T184] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.138114][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.138116][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.138120][ T184] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.138125][ T184] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.138127][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138133][ T184] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.138136][ T184] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.138138][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.138139][ T184] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.138143][ T184] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.138145][ T184] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.138148][ T184] vprintk_emit (kernel/printk/printk.c:2479) [ 11.138151][ T184] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.138153][ T184] ? write_profile (profile.c:?) [ 11.138156][ T184] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 11.138163][ T184] dev_vprintk_emit (drivers/base/core.c:5000) [ 11.138168][ T184] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 11.138173][ T184] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 11.138178][ T184] dev_printk_emit (drivers/base/core.c:5011) [ 11.138181][ T184] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 11.138185][ T184] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 11.138191][ T184] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 11.138196][ T184] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.138199][ T184] ? netdev_notice (net/core/dev.c:13194) [ 11.138202][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.138205][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.138207][ T184] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.138211][ T184] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.138214][ T184] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.138217][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138219][ T184] ? mark_lock_irq (kernel/locking/lockdep.c:154 (discriminator 6) kernel/locking/lockdep.c:150 (discriminator 6) kernel/locking/lockdep.c:202 (discriminator 6) kernel/locking/lockdep.c:4092 (discriminator 6) kernel/locking/lockdep.c:4174 (discriminator 6) kernel/locking/lockdep.c:4310 (discriminator 6)) [ 11.138221][ T184] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 11.138224][ T184] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.138226][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.138232][ T184] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.138238][ T184] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.138241][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138244][ T184] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.138246][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.138248][ T184] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.138250][ T184] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.138253][ T184] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.138258][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138263][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.138265][ T184] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.138268][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.138270][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.138271][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.138273][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.138274][ T184] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.138277][ T184] ? __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) [ 11.138281][ T184] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.138282][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138285][ T184] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.138287][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.138290][ T184] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.138292][ T184] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.138298][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.138302][ T184] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 11.138309][ T184] rtnl_setlink (net/core/rtnetlink.c:3596) [ 11.138313][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.138315][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138338][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.138340][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.138343][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.138345][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.138347][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138357][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.138359][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.138361][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.138363][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.138367][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.138370][ T184] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.138373][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.138375][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138380][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.138382][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.138386][ T184] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.138389][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.138392][ T184] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.138399][ T184] ? 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)) [ 11.138401][ T184] ? 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)) [ 11.138406][ T184] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.138410][ T184] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.138413][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.138418][ T184] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.138423][ T184] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.138426][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.138430][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.138434][ T184] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 11.138437][ T184] ? __ia32_sys_getpeername (net/socket.c:2235) [ 11.138452][ T184] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 11.138454][ T184] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 11.138457][ T184] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 11.138459][ T184] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 11.138462][ T184] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.138464][ T184] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.138466][ T184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.138469][ T184] RIP: 0033:0x7f88c620e54e [ 11.138473][ T184] 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 [ 11.138475][ T184] RSP: 002b:00007fffe65c6100 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 11.138477][ T184] RAX: ffffffffffffffda RBX: 00005636e5db5160 RCX: 00007f88c620e54e [ 11.138479][ T184] RDX: 0000000000000030 RSI: 00005636e5d84880 RDI: 000000000000001b [ 11.138480][ T184] RBP: 00007fffe65c6110 R08: 00007fffe65c6160 R09: 0000000000000080 [ 11.138480][ T184] R10: 0000000000000000 R11: 0000000000000202 R12: 00005636e5dd3210 [ 11.138481][ T184] R13: 00007fffe65c6244 R14: 0000000000000000 R15: 0000000000000000 | [ 14.656621][ T496] softirqs last disabled at (23849): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 14.656623][ T496] Preemption disabled at: | [ 14.656624][ T496] 0x0 | [ 14.656635][ T496] Tainted: [W]=WARN [ 14.656636][ T496] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.656638][ T496] Call Trace: [ 14.656640][ T496] [ 14.656641][ T496] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.656648][ T496] __might_resched.cold (kernel/sched/core.c:9234) [ 14.656653][ T496] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.656657][ T496] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.656663][ T496] __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)) [ 14.656666][ T496] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.656672][ T496] ? 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) [ 14.656675][ T496] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.656679][ T496] put_chars (drivers/char/virtio_console.c:1176) [ 14.656682][ T496] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.656684][ T496] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 14.656688][ T496] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.656692][ T496] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.656697][ T496] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.656700][ T496] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.656702][ T496] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.656706][ T496] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.656710][ T496] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.656712][ T496] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.656717][ T496] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.656721][ T496] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.656726][ T496] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.656728][ T496] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.656732][ T496] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.656736][ T496] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.656738][ T496] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.656744][ T496] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.656747][ T496] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.656749][ T496] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.656751][ T496] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.656755][ T496] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.656756][ T496] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.656759][ T496] vprintk_emit (kernel/printk/printk.c:2479) [ 14.656763][ T496] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.656766][ T496] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.656771][ T496] _printk (kernel/printk/printk.c:2504) [ 14.656774][ T496] ? snapshot_read.cold (user.c:?) [ 14.656777][ T496] ? 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) [ 14.656780][ T496] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.656784][ T496] ? 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) [ 14.656787][ T496] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 14.656791][ T496] ? exit_notify (kernel/exit.c:780) [ 14.656793][ T496] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.656796][ T496] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.656799][ T496] do_group_exit (kernel/exit.c:1151) [ 14.656802][ T496] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 14.656804][ T496] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 14.656807][ T496] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.656811][ T496] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.656814][ T496] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.656816][ T496] RIP: 0033:0x7f9eaa7fe1b8 [ 14.656818][ T496] Code: Unable to access opcode bytes at 0x7f9eaa7fe18e. Code starting with the faulting instruction =========================================== [ 14.656819][ T496] RSP: 002b:00007ffc88724fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 14.656822][ T496] RAX: ffffffffffffffda RBX: 00007f9eaa92ef88 RCX: 00007f9eaa7fe1b8 [ 14.656823][ T496] RDX: 00007f9eaa548fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 14.656824][ T496] RBP: 00007ffc88725040 R08: 0000000000000000 R09: 0000000000000060 [ 14.656825][ T496] R10: 00007ffc88724e00 R11: 0000000000000246 R12: 0000000000000001 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print