====================================== | [ 9.231876][ T181] softirqs last disabled at (45575): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.231878][ T181] Preemption disabled at: | [ 9.231879][ T181] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.231887][ T181] Tainted: [W]=WARN [ 9.231889][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.231890][ T181] Call Trace: [ 9.231892][ T181] [ 9.231893][ T181] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.231899][ T181] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.231901][ T181] __might_resched.cold (kernel/sched/core.c:9234) [ 9.231905][ T181] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.231909][ T181] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.231914][ T181] __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)) [ 9.231916][ T181] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.231922][ T181] ? 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) [ 9.231924][ T181] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.231927][ T181] put_chars (drivers/char/virtio_console.c:1176) [ 9.231930][ T181] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.231932][ T181] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.231937][ T181] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.231939][ T181] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.231943][ T181] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.231946][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.231951][ T181] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.231954][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.231959][ T181] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.231962][ T181] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.231964][ T181] ? 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)) [ 9.231967][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.231970][ T181] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.231973][ T181] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.231978][ T181] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.231980][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.231985][ T181] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.231987][ T181] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.231989][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.231991][ T181] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.231995][ T181] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.232001][ T181] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.232004][ T181] vprintk_emit (kernel/printk/printk.c:2479) [ 9.232008][ T181] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.232013][ T181] ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic [ 9.232018][ T181] _printk (kernel/printk/printk.c:2504) [ 9.232022][ T181] ? snapshot_read.cold (user.c:?) [ 9.232027][ T181] ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356) [ 9.232031][ T181] ppp_init (ppp_generic.mod.c:?) ppp_generic [ 9.232034][ T181] do_one_initcall (init/main.c:1357) [ 9.232037][ T181] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 9.232041][ T181] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 9.232044][ T181] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 9.232048][ T181] do_init_module (kernel/module/main.c:3117) [ 9.232052][ T181] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.232055][ T181] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 9.232059][ T181] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 9.232063][ T181] load_module (kernel/module/main.c:3593) [ 9.232069][ T181] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 9.232074][ T181] ? backing_file_read_iter (fs/backing-file.c:211) [ 9.232077][ T181] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.232081][ T181] init_module_from_file (kernel/module/main.c:3790) [ 9.232084][ T181] ? __do_sys_init_module (kernel/module/main.c:3664) [ 9.232092][ T181] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.232095][ T181] ? 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) [ 9.232098][ T181] idempotent_init_module (kernel/module/main.c:3802) [ 9.232101][ T181] ? init_module_from_file (kernel/module/main.c:3791) [ 9.232107][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.232110][ T181] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.232116][ T181] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 9.232118][ T181] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.232121][ T181] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.232124][ T181] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.232126][ T181] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.232129][ T181] RIP: 0033:0x7faeda94737d [ 9.232132][ T181] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48 All code ======== 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 90 nop d: f3 0f 1e fa endbr64 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d 4b aa 0f 00 mov 0xfaa4b(%rip),%rcx # 0xfaa85 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d 4b aa 0f 00 mov 0xfaa4b(%rip),%rcx # 0xfaa5b 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 9.232134][ T181] RSP: 002b:00007fff7c1741f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 9.232136][ T181] RAX: ffffffffffffffda RBX: 000055a91f7411d0 RCX: 00007faeda94737d [ 9.232138][ T181] RDX: 0000000000000000 RSI: 000055a8e0dfcffd RDI: 0000000000000006 [ 9.232138][ T181] RBP: 00007fff7c174290 R08: 0000000000000000 R09: 0000000000000000 [ 9.232139][ T181] R10: 0000000000000000 R11: 0000000000000246 R12: 000055a8e0dfcffd [ 9.232140][ T181] R13: 000055a91f741180 R14: 0000000000040000 R15: 0000000000000000 | [ 14.350153][ T258] softirqs last disabled at (1646615): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 14.350155][ T258] Preemption disabled at: | [ 14.350156][ T258] 0x0 | [ 14.350166][ T258] Tainted: [W]=WARN [ 14.350167][ T258] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.350168][ T258] Call Trace: [ 14.350170][ T258] [ 14.350171][ T258] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.350178][ T258] __might_resched.cold (kernel/sched/core.c:9234) [ 14.350182][ T258] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.350186][ T258] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.350191][ T258] __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)) [ 14.350193][ T258] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.350199][ T258] ? 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) [ 14.350202][ T258] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.350205][ T258] put_chars (drivers/char/virtio_console.c:1176) [ 14.350207][ T258] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 14.350209][ T258] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.350213][ T258] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.350217][ T258] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.350219][ T258] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.350223][ T258] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.350226][ T258] ? mark_usage (kernel/locking/lockdep.c:4690) [ 14.350228][ T258] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.350230][ T258] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.350233][ T258] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.350236][ T258] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 14.350239][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.350241][ T258] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.350245][ T258] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.350249][ T258] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.350250][ T258] ? 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)) [ 14.350253][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.350256][ T258] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.350259][ T258] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.350263][ T258] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.350265][ T258] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.350270][ T258] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.350273][ T258] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.350275][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.350277][ T258] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.350280][ T258] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.350282][ T258] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.350285][ T258] vprintk_emit (kernel/printk/printk.c:2479) [ 14.350289][ T258] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.350293][ T258] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.350296][ T258] _printk (kernel/printk/printk.c:2504) [ 14.350300][ T258] ? snapshot_read.cold (user.c:?) [ 14.350302][ T258] ? 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) [ 14.350305][ T258] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.350309][ T258] ? 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) [ 14.350311][ T258] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 14.350315][ T258] ? exit_notify (kernel/exit.c:780) [ 14.350320][ T258] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 14.350322][ T258] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 14.350324][ T258] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.350328][ T258] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.350331][ T258] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.350333][ T258] RIP: 0033:0x7fa80a1a6c49 [ 14.350335][ T258] Code: Unable to access opcode bytes at 0x7fa80a1a6c1f. Code starting with the faulting instruction =========================================== [ 14.350336][ T258] RSP: 002b:00007fa809965e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 14.350339][ T258] RAX: ffffffffffffffda RBX: 00007fa8099666c0 RCX: 00007fa80a1a6c49 [ 14.350340][ T258] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 14.350341][ T258] RBP: 00007fa809965f70 R08: 0000000000000001 R09: 00007fa8099666c0 [ 14.350342][ T258] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fa809166000 [ 14.350343][ T258] R13: 00007ffc79e354c0 R14: 0000000000000002 R15: 00007ffc79e355c7 | [ 14.470782][ T262] | [ 14.470782][ T262] | [ 14.470782][ T262] stack backtrace: | [ 14.470787][ T262] Tainted: [W]=WARN [ 14.470787][ T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.470789][ T262] Call Trace: [ 14.470790][ T262] [ 14.470791][ T262] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.470794][ T262] print_bad_irq_dependency (kernel/locking/lockdep.c:2632) [ 14.470797][ T262] check_irq_usage (kernel/locking/lockdep.c:2873 (discriminator 1)) [ 14.470799][ T262] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.470803][ T262] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.470805][ T262] ? check_path.constprop.0 (kernel/locking/lockdep.c:1864 kernel/locking/lockdep.c:2147) [ 14.470808][ T262] ? check_prev_add (kernel/locking/lockdep.c:3185) [ 14.470809][ T262] check_prev_add (kernel/locking/lockdep.c:3185) [ 14.470811][ T262] validate_chain (kernel/locking/lockdep.c:3300 kernel/locking/lockdep.c:3924) [ 14.470813][ T262] __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.470815][ T262] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.470817][ T262] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 14.470819][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470821][ T262] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.470822][ T262] console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 14.470824][ T262] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 14.470826][ T262] console_emit_next_record (kernel/printk/printk.c:3177) [ 14.470828][ T262] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.470829][ T262] ? 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)) [ 14.470831][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470833][ T262] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.470835][ T262] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.470837][ T262] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.470839][ T262] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.470841][ T262] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.470843][ T262] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.470844][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470846][ T262] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.470848][ T262] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.470849][ T262] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.470851][ T262] vprintk_emit (kernel/printk/printk.c:2479) [ 14.470853][ T262] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.470855][ T262] ? mark_lock (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:4775) [ 14.470857][ T262] _printk (kernel/printk/printk.c:2504) [ 14.470859][ T262] ? snapshot_read.cold (user.c:?) [ 14.470860][ T262] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.470862][ T262] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.470863][ T262] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 14.470864][ T262] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 14.470866][ T262] netdev_err (net/core/dev.c:13192 (discriminator 3)) [ 14.470867][ T262] ? netdev_crit (net/core/dev.c:13191) [ 14.470869][ T262] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 14.470870][ T262] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 14.470873][ T262] ? idr_get_free (??:?) [ 14.470875][ T262] ppp_xmit_process.cold (drivers/net/ppp/ppp_generic.c:1714 (discriminator 1)) ppp_generic [ 14.470877][ T262] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 14.470879][ T262] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 14.470882][ T262] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 14.470884][ T262] ? dev_nit_active_rcu (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/core/dev.c:2564 (discriminator 1)) [ 14.470886][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470888][ T262] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 14.470890][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470892][ T262] __dev_queue_xmit (net/core/dev.c:4926) [ 14.470894][ T262] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 14.470896][ T262] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 14.470897][ T262] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 14.470899][ T262] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 14.470900][ T262] ? ref_tracker_dir_print (lib/ref_tracker.c:200) [ 14.470904][ T262] ? dst_init (./include/linux/netdevice.h:4528 ./include/linux/netdevice.h:4557 net/core/dst.c:52) [ 14.470905][ T262] ? dst_alloc (net/core/dst.c:94) [ 14.470906][ T262] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 14.470908][ T262] ? ip_route_output_flow (./include/net/route.h:169 net/ipv4/route.c:2961) [ 14.470909][ T262] ? __ip_queue_xmit (net/ipv4/ip_output.c:495) [ 14.470911][ T262] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.470912][ T262] ? down_read_nested (kernel/locking/rwsem.c:256 kernel/locking/rwsem.c:1290 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1710) [ 14.470914][ T262] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.470915][ T262] ? ip_finish_output2 (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) net/ipv4/ip_output.c:229 (discriminator 2)) [ 14.470917][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470919][ T262] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 14.470921][ T262] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 14.470923][ T262] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.470924][ T262] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 14.470927][ T262] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 14.470929][ T262] ? ip_finish_output (./include/linux/cgroup.h:915) [ 14.470930][ T262] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.470932][ T262] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.470933][ T262] ? ip4_dst_hoplimit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/route.h:397 (discriminator 2)) [ 14.470935][ T262] __ip_queue_xmit (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:533 (discriminator 4)) [ 14.470938][ T262] l2tp_xmit_core.constprop.0 (net/l2tp/l2tp_core.c:1220 net/l2tp/l2tp_core.c:1317) l2tp_core [ 14.470941][ T262] l2tp_xmit_skb (net/l2tp/l2tp_core.c:1333) l2tp_core [ 14.470944][ T262] ? l2tp_xmit_core.constprop.0 (./include/net/sock.h:3030) l2tp_core [ 14.470947][ T262] ? 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) [ 14.470949][ T262] ? pppol2tp_xmit (./include/linux/bottom_half.h:20 (discriminator 2) net/l2tp/l2tp_ppp.c:361 (discriminator 2)) l2tp_ppp [ 14.470950][ T262] pppol2tp_xmit (net/l2tp/l2tp_ppp.c:362) l2tp_ppp [ 14.470952][ T262] ppp_push (drivers/net/ppp/ppp_generic.c:1935 drivers/net/ppp/ppp_generic.c:1905) ppp_generic [ 14.470954][ T262] ppp_xmit_process (drivers/net/ppp/ppp_generic.c:1674 drivers/net/ppp/ppp_generic.c:1700) ppp_generic [ 14.470956][ T262] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 14.470958][ T262] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 14.470960][ T262] ? down_read_nested (kernel/locking/rwsem.c:1295 (discriminator 23) kernel/locking/rwsem.c:1304 (discriminator 23) kernel/locking/rwsem.c:1710 (discriminator 23)) [ 14.470961][ T262] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 14.470963][ T262] ? dev_nit_active_rcu (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/core/dev.c:2564 (discriminator 1)) [ 14.470965][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470967][ T262] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 14.470969][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470971][ T262] __dev_queue_xmit (net/core/dev.c:4926) [ 14.470973][ T262] ? sock_queue_err_skb (./include/linux/skbuff.h:1165) [ 14.470975][ T262] ? kmem_cache_alloc_node_noprof (mm/slub.c:5070 (discriminator 1)) [ 14.470977][ T262] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.470979][ T262] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.470980][ T262] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.470982][ T262] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 14.470983][ T262] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.470985][ T262] ? down_read_nested (kernel/locking/rwsem.c:256 kernel/locking/rwsem.c:1290 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1710) [ 14.470986][ T262] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.470988][ T262] ? ip_finish_output2 (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) net/ipv4/ip_output.c:229 (discriminator 2)) [ 14.470990][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.470992][ T262] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 14.470994][ T262] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 14.470995][ T262] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.470997][ T262] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 14.470998][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.471001][ T262] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 14.471003][ T262] ? ip_finish_output (./include/linux/cgroup.h:915) [ 14.471004][ T262] ? __ip_make_skb (net/ipv4/ip_output.c:1390 net/ipv4/ip_output.c:1501) [ 14.471007][ T262] ip_push_pending_frames (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1510 (discriminator 4) net/ipv4/ip_output.c:1530 (discriminator 4)) [ 14.471009][ T262] raw_sendmsg (net/ipv4/raw.c:665) [ 14.471011][ T262] ? raw_send_hdrinc (./include/linux/skbuff.h:1165) [ 14.471012][ T262] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.471016][ T262] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.471019][ T262] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.471021][ T262] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.471023][ T262] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 14.471025][ T262] ? __ia32_sys_getpeername (net/socket.c:2235) [ 14.471032][ T262] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 14.471034][ T262] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 14.471036][ T262] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 14.471038][ T262] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 14.471040][ T262] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 14.471041][ T262] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.471043][ T262] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.471044][ T262] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.471046][ T262] RIP: 0033:0x7f8ec984a54e [ 14.471048][ T262] 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 [ 14.471050][ T262] RSP: 002b:00007fff2922e480 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 14.471052][ T262] RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007f8ec984a54e [ 14.471053][ T262] RDX: 0000000000000040 RSI: 000055a816bc40a4 RDI: 0000000000000005 [ 14.471054][ T262] RBP: 00007fff2922e490 R08: 000055a816bd6320 R09: 0000000000000010 [ 14.471055][ T262] R10: 0000000000000000 R11: 0000000000000202 R12: 431bde82d7b634db [ 14.471056][ T262] R13: 0000000000000000 R14: 000055a816bd73e0 R15: 000055a816bc40a0 | [ 15.474983][ T262] softirqs last disabled at (30610): __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) | [ 15.474986][ T262] Preemption disabled at: | [ 15.474987][ T262] 0x0 | [ 15.474996][ T262] Tainted: [W]=WARN [ 15.474997][ T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.474998][ T262] Call Trace: [ 15.475000][ T262] [ 15.475001][ T262] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.475006][ T262] __might_resched.cold (kernel/sched/core.c:9234) [ 15.475010][ T262] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.475013][ T262] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 15.475016][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475020][ T262] __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)) [ 15.475023][ T262] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.475025][ T262] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.475029][ T262] ? 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) [ 15.475031][ T262] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.475036][ T262] put_chars (drivers/char/virtio_console.c:1176) [ 15.475038][ T262] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.475040][ T262] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 15.475043][ T262] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.475046][ T262] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.475048][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475049][ T262] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.475052][ T262] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.475054][ T262] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.475056][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475058][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475059][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475061][ T262] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.475062][ T262] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 15.475064][ T262] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.475066][ T262] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.475069][ T262] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.475070][ T262] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.475072][ T262] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.475073][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475075][ T262] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 15.475076][ T262] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.475078][ T262] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 15.475080][ T262] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.475081][ T262] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.475083][ T262] vprintk_emit (kernel/printk/printk.c:2479) [ 15.475085][ T262] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.475088][ T262] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 15.475089][ T262] ? forget_original_parent (kernel/exit.c:635 kernel/exit.c:740) [ 15.475093][ T262] _printk (kernel/printk/printk.c:2504) [ 15.475095][ T262] ? snapshot_read.cold (user.c:?) [ 15.475097][ T262] ? 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) [ 15.475099][ T262] ? 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) [ 15.475100][ T262] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.475102][ T262] ? 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) [ 15.475104][ T262] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.475107][ T262] ? exit_notify (kernel/exit.c:780) [ 15.475108][ T262] ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3)) [ 15.475110][ T262] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.475112][ T262] do_group_exit (kernel/exit.c:1151) [ 15.475114][ T262] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 15.475115][ T262] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 15.475118][ T262] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.475121][ T262] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.475123][ T262] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.475125][ T262] RIP: 0033:0x7f8ec989b1b8 [ 15.475127][ T262] Code: Unable to access opcode bytes at 0x7f8ec989b18e. Code starting with the faulting instruction =========================================== [ 15.475128][ T262] RSP: 002b:00007fff2922fc18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.475130][ T262] RAX: ffffffffffffffda RBX: 00007f8ec99cbf88 RCX: 00007f8ec989b1b8 [ 15.475132][ T262] RDX: 00007f8ec962c7c8 RSI: ffffffffffffffb0 RDI: 0000000000000001 [ 15.475132][ T262] RBP: 00007fff2922fc70 R08: 0000000000000000 R09: 0000000000001010 [ 15.475133][ T262] R10: 00007fff2922fa90 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print print_bad_irq_dependency:check_irq_usage:check_prev_add:validate_chain:__lock_acquire __dev_queue_xmit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars