====================================== | [ 9.173187][ T179] softirqs last disabled at (44075): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.173189][ T179] Preemption disabled at: | [ 9.173189][ T179] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.173201][ T179] Tainted: [W]=WARN [ 9.173202][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.173204][ T179] Call Trace: [ 9.173205][ T179] [ 9.173207][ T179] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.173212][ T179] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.173215][ T179] __might_resched.cold (kernel/sched/core.c:9234) [ 9.173219][ T179] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.173223][ T179] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.173228][ T179] __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)) [ 9.173230][ T179] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.173235][ T179] ? 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) [ 9.173238][ T179] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.173241][ T179] put_chars (drivers/char/virtio_console.c:1176) [ 9.173244][ T179] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.173246][ T179] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.173251][ T179] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.173253][ T179] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.173257][ T179] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.173260][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.173265][ T179] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.173267][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.173272][ T179] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.173276][ T179] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.173278][ T179] ? 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)) [ 9.173281][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.173283][ T179] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.173287][ T179] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.173290][ T179] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.173292][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.173297][ T179] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.173300][ T179] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.173302][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.173304][ T179] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.173307][ T179] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.173309][ T179] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.173312][ T179] vprintk_emit (kernel/printk/printk.c:2479) [ 9.173315][ T179] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.173321][ T179] ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic [ 9.173325][ T179] _printk (kernel/printk/printk.c:2504) [ 9.173328][ T179] ? snapshot_read.cold (user.c:?) [ 9.173334][ T179] ? 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) [ 9.173337][ T179] ppp_init (ppp_generic.mod.c:?) ppp_generic [ 9.173340][ T179] do_one_initcall (init/main.c:1357) [ 9.173343][ T179] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 9.173347][ T179] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 9.173350][ T179] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 9.173355][ T179] do_init_module (kernel/module/main.c:3117) [ 9.173359][ T179] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.173362][ T179] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 9.173365][ T179] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 9.173369][ T179] load_module (kernel/module/main.c:3593) [ 9.173376][ T179] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 9.173381][ T179] ? backing_file_read_iter (fs/backing-file.c:211) [ 9.173384][ T179] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.173388][ T179] init_module_from_file (kernel/module/main.c:3790) [ 9.173391][ T179] ? __do_sys_init_module (kernel/module/main.c:3664) [ 9.173398][ T179] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.173402][ T179] ? 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) [ 9.173405][ T179] idempotent_init_module (kernel/module/main.c:3802) [ 9.173408][ T179] ? init_module_from_file (kernel/module/main.c:3791) [ 9.173414][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.173416][ T179] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.173422][ T179] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 9.173425][ T179] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.173428][ T179] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.173430][ T179] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.173433][ T179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.173435][ T179] RIP: 0033:0x7f17eedad37d [ 9.173438][ T179] 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 [ 9.173440][ T179] RSP: 002b:00007ffea682a5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 9.173442][ T179] RAX: ffffffffffffffda RBX: 000055eb2787c1d0 RCX: 00007f17eedad37d [ 9.173443][ T179] RDX: 0000000000000000 RSI: 000055eb15273ffd RDI: 0000000000000006 [ 9.173444][ T179] RBP: 00007ffea682a670 R08: 0000000000000000 R09: 0000000000000000 [ 9.173445][ T179] R10: 0000000000000000 R11: 0000000000000246 R12: 000055eb15273ffd [ 9.173446][ T179] R13: 000055eb2787c180 R14: 0000000000040000 R15: 0000000000000000 | [ 14.361417][ T250] softirqs last disabled at (1714227): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 14.361420][ T250] Preemption disabled at: | [ 14.361420][ T250] 0x0 | [ 14.361430][ T250] Tainted: [W]=WARN [ 14.361431][ T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.361433][ T250] Call Trace: [ 14.361434][ T250] [ 14.361436][ T250] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.361442][ T250] __might_resched.cold (kernel/sched/core.c:9234) [ 14.361447][ T250] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.361451][ T250] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.361456][ T250] __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)) [ 14.361458][ T250] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.361464][ T250] ? 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) [ 14.361466][ T250] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.361470][ T250] put_chars (drivers/char/virtio_console.c:1176) [ 14.361472][ T250] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 14.361474][ T250] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.361477][ T250] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.361481][ T250] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.361483][ T250] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.361487][ T250] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.361490][ T250] ? mark_usage (kernel/locking/lockdep.c:4690) [ 14.361492][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.361494][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.361497][ T250] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.361500][ T250] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 14.361503][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.361505][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.361509][ T250] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.361512][ T250] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.361514][ T250] ? 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)) [ 14.361517][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.361520][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.361523][ T250] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.361527][ T250] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.361529][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.361534][ T250] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.361537][ T250] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.361538][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.361541][ T250] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.361544][ T250] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.361546][ T250] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.361549][ T250] vprintk_emit (kernel/printk/printk.c:2479) [ 14.361552][ T250] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.361556][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.361559][ T250] _printk (kernel/printk/printk.c:2504) [ 14.361563][ T250] ? snapshot_read.cold (user.c:?) [ 14.361566][ T250] ? 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) [ 14.361568][ T250] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.361572][ T250] ? 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) [ 14.361574][ T250] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 14.361578][ T250] ? exit_notify (kernel/exit.c:780) [ 14.361583][ T250] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 14.361585][ T250] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 14.361587][ T250] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.361591][ T250] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.361594][ T250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.361596][ T250] RIP: 0033:0x7fa89dcaec49 [ 14.361598][ T250] Code: Unable to access opcode bytes at 0x7fa89dcaec1f. Code starting with the faulting instruction =========================================== [ 14.361599][ T250] RSP: 002b:00007fa89d46de60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 14.361602][ T250] RAX: ffffffffffffffda RBX: 00007fa89d46e6c0 RCX: 00007fa89dcaec49 [ 14.361603][ T250] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 14.361604][ T250] RBP: 00007fa89d46df70 R08: 0000000000000001 R09: 00007fa89d46e6c0 [ 14.361605][ T250] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fa89cc6e000 [ 14.361606][ T250] R13: 00007ffe151f8e80 R14: 0000000000000002 R15: 00007ffe151f8f87 | [ 14.478437][ T254] | [ 14.478438][ T254] | [ 14.478438][ T254] stack backtrace: | [ 14.478443][ T254] Tainted: [W]=WARN [ 14.478444][ T254] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.478445][ T254] Call Trace: [ 14.478446][ T254] [ 14.478447][ T254] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.478450][ T254] print_bad_irq_dependency (kernel/locking/lockdep.c:2632) [ 14.478453][ T254] check_irq_usage (kernel/locking/lockdep.c:2873 (discriminator 1)) [ 14.478455][ T254] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.478458][ T254] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.478461][ T254] ? check_path.constprop.0 (kernel/locking/lockdep.c:1864 kernel/locking/lockdep.c:2147) [ 14.478464][ T254] ? check_prev_add (kernel/locking/lockdep.c:3185) [ 14.478465][ T254] check_prev_add (kernel/locking/lockdep.c:3185) [ 14.478467][ T254] validate_chain (kernel/locking/lockdep.c:3300 kernel/locking/lockdep.c:3924) [ 14.478469][ T254] __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.478471][ T254] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.478472][ T254] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 14.478474][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478476][ T254] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.478478][ T254] console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 14.478480][ T254] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 14.478481][ T254] console_emit_next_record (kernel/printk/printk.c:3177) [ 14.478484][ T254] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.478485][ T254] ? 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)) [ 14.478487][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478489][ T254] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.478491][ T254] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.478493][ T254] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.478494][ T254] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.478497][ T254] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.478498][ T254] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.478500][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478502][ T254] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.478503][ T254] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.478505][ T254] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.478507][ T254] vprintk_emit (kernel/printk/printk.c:2479) [ 14.478509][ T254] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.478511][ T254] ? mark_lock (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:4775) [ 14.478513][ T254] _printk (kernel/printk/printk.c:2504) [ 14.478515][ T254] ? snapshot_read.cold (user.c:?) [ 14.478516][ T254] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.478518][ T254] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.478519][ T254] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 14.478520][ T254] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 14.478522][ T254] netdev_err (net/core/dev.c:13192 (discriminator 3)) [ 14.478524][ T254] ? netdev_crit (net/core/dev.c:13191) [ 14.478525][ T254] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 14.478526][ T254] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 14.478529][ T254] ? idr_get_free (??:?) [ 14.478531][ T254] ppp_xmit_process.cold (drivers/net/ppp/ppp_generic.c:1714 (discriminator 1)) ppp_generic [ 14.478534][ T254] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 14.478536][ T254] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 14.478538][ T254] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 14.478540][ T254] ? 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)) [ 14.478543][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478545][ T254] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 14.478547][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478549][ T254] __dev_queue_xmit (net/core/dev.c:4926) [ 14.478551][ T254] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 14.478552][ T254] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 14.478554][ T254] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 14.478555][ T254] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 14.478557][ T254] ? ref_tracker_dir_print (lib/ref_tracker.c:200) [ 14.478560][ T254] ? dst_init (./include/linux/netdevice.h:4528 ./include/linux/netdevice.h:4557 net/core/dst.c:52) [ 14.478561][ T254] ? dst_alloc (net/core/dst.c:94) [ 14.478563][ T254] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 14.478564][ T254] ? ip_route_output_flow (./include/net/route.h:169 net/ipv4/route.c:2961) [ 14.478566][ T254] ? __ip_queue_xmit (net/ipv4/ip_output.c:495) [ 14.478567][ T254] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.478569][ T254] ? down_read_nested (kernel/locking/rwsem.c:256 kernel/locking/rwsem.c:1290 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1710) [ 14.478570][ T254] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.478572][ T254] ? 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)) [ 14.478573][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478576][ T254] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 14.478578][ T254] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 14.478579][ T254] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.478581][ T254] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 14.478583][ T254] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 14.478585][ T254] ? ip_finish_output (./include/linux/cgroup.h:915) [ 14.478587][ T254] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.478588][ T254] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.478590][ T254] ? ip4_dst_hoplimit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/route.h:397 (discriminator 2)) [ 14.478592][ T254] __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)) [ 14.478594][ T254] l2tp_xmit_core.constprop.0 (net/l2tp/l2tp_core.c:1220 net/l2tp/l2tp_core.c:1317) l2tp_core [ 14.478598][ T254] l2tp_xmit_skb (net/l2tp/l2tp_core.c:1333) l2tp_core [ 14.478601][ T254] ? l2tp_xmit_core.constprop.0 (./include/net/sock.h:3030) l2tp_core [ 14.478603][ T254] ? 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) [ 14.478605][ T254] ? pppol2tp_xmit (./include/linux/bottom_half.h:20 (discriminator 2) net/l2tp/l2tp_ppp.c:361 (discriminator 2)) l2tp_ppp [ 14.478606][ T254] pppol2tp_xmit (net/l2tp/l2tp_ppp.c:362) l2tp_ppp [ 14.478608][ T254] ppp_push (drivers/net/ppp/ppp_generic.c:1935 drivers/net/ppp/ppp_generic.c:1905) ppp_generic [ 14.478610][ T254] ppp_xmit_process (drivers/net/ppp/ppp_generic.c:1674 drivers/net/ppp/ppp_generic.c:1700) ppp_generic [ 14.478613][ T254] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 14.478615][ T254] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 14.478616][ T254] ? down_read_nested (kernel/locking/rwsem.c:1295 (discriminator 23) kernel/locking/rwsem.c:1304 (discriminator 23) kernel/locking/rwsem.c:1710 (discriminator 23)) [ 14.478618][ T254] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 14.478620][ T254] ? 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)) [ 14.478621][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478623][ T254] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 14.478625][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478627][ T254] __dev_queue_xmit (net/core/dev.c:4926) [ 14.478629][ T254] ? sock_queue_err_skb (./include/linux/skbuff.h:1165) [ 14.478632][ T254] ? kmem_cache_alloc_node_noprof (mm/slub.c:5070 (discriminator 1)) [ 14.478633][ T254] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.478635][ T254] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.478637][ T254] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.478638][ T254] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 14.478640][ T254] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.478641][ T254] ? down_read_nested (kernel/locking/rwsem.c:256 kernel/locking/rwsem.c:1290 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1710) [ 14.478643][ T254] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.478644][ T254] ? 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)) [ 14.478646][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478648][ T254] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 14.478650][ T254] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 14.478652][ T254] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.478653][ T254] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 14.478655][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.478657][ T254] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 14.478659][ T254] ? ip_finish_output (./include/linux/cgroup.h:915) [ 14.478661][ T254] ? __ip_make_skb (net/ipv4/ip_output.c:1390 net/ipv4/ip_output.c:1501) [ 14.478664][ T254] 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)) [ 14.478665][ T254] raw_sendmsg (net/ipv4/raw.c:665) [ 14.478667][ T254] ? raw_send_hdrinc (./include/linux/skbuff.h:1165) [ 14.478669][ T254] ? 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) [ 14.478670][ T254] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.478674][ T254] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.478677][ T254] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.478679][ T254] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.478681][ T254] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 14.478683][ T254] ? __ia32_sys_getpeername (net/socket.c:2235) [ 14.478686][ T254] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 14.478688][ T254] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 14.478690][ T254] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 14.478693][ T254] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 14.478694][ T254] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 14.478695][ T254] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.478697][ T254] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.478698][ T254] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.478700][ T254] RIP: 0033:0x7fb56f35c54e [ 14.478702][ T254] 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 [ 14.478704][ T254] RSP: 002b:00007ffe1b9f1da0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 14.478706][ T254] RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007fb56f35c54e [ 14.478707][ T254] RDX: 0000000000000040 RSI: 00005588990ae0a4 RDI: 0000000000000005 [ 14.478708][ T254] RBP: 00007ffe1b9f1db0 R08: 00005588990c0320 R09: 0000000000000010 [ 14.478709][ T254] R10: 0000000000000000 R11: 0000000000000202 R12: 431bde82d7b634db [ 14.478710][ T254] R13: 0000000000000000 R14: 00005588990c13e0 R15: 00005588990ae0a0 | [ 15.482766][ T254] softirqs last disabled at (24526): __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)) | [ 15.482769][ T254] Preemption disabled at: | [ 15.482770][ T254] 0x0 | [ 15.482780][ T254] Tainted: [W]=WARN [ 15.482780][ T254] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.482782][ T254] Call Trace: [ 15.482784][ T254] [ 15.482785][ T254] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.482790][ T254] __might_resched.cold (kernel/sched/core.c:9234) [ 15.482794][ T254] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.482797][ T254] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 15.482800][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482804][ T254] __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)) [ 15.482807][ T254] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.482809][ T254] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.482813][ T254] ? 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) [ 15.482815][ T254] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.482817][ T254] put_chars (drivers/char/virtio_console.c:1176) [ 15.482819][ T254] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.482821][ T254] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 15.482823][ T254] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.482827][ T254] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.482828][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482830][ T254] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.482832][ T254] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.482835][ T254] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.482836][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482838][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482840][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482841][ T254] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.482843][ T254] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 15.482845][ T254] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.482847][ T254] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.482850][ T254] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.482851][ T254] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.482853][ T254] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.482855][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482856][ T254] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 15.482857][ T254] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.482859][ T254] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 15.482861][ T254] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.482862][ T254] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.482864][ T254] vprintk_emit (kernel/printk/printk.c:2479) [ 15.482867][ T254] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.482869][ T254] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 15.482870][ T254] ? forget_original_parent (kernel/exit.c:635 kernel/exit.c:740) [ 15.482874][ T254] _printk (kernel/printk/printk.c:2504) [ 15.482877][ T254] ? snapshot_read.cold (user.c:?) [ 15.482879][ T254] ? 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) [ 15.482880][ T254] ? 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) [ 15.482882][ T254] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.482884][ T254] ? 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) [ 15.482886][ T254] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.482889][ T254] ? exit_notify (kernel/exit.c:780) [ 15.482890][ T254] ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3)) [ 15.482892][ T254] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.482894][ T254] do_group_exit (kernel/exit.c:1151) [ 15.482896][ T254] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 15.482897][ T254] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 15.482899][ T254] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.482903][ T254] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.482904][ T254] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.482906][ T254] RIP: 0033:0x7fb56f3ad1b8 [ 15.482908][ T254] Code: Unable to access opcode bytes at 0x7fb56f3ad18e. Code starting with the faulting instruction =========================================== [ 15.482909][ T254] RSP: 002b:00007ffe1b9f3538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.482913][ T254] RAX: ffffffffffffffda RBX: 00007fb56f4ddf88 RCX: 00007fb56f3ad1b8 [ 15.482914][ T254] RDX: 00007fb56f13e7c8 RSI: ffffffffffffffb0 RDI: 0000000000000001 [ 15.482916][ T254] RBP: 00007ffe1b9f3590 R08: 0000000000000000 R09: 0000000000001010 [ 15.482917][ T254] R10: 00007ffe1b9f33b0 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