====================================== | [ 19.100701][ T357] softirqs last disabled at (38723): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 19.100703][ T357] Preemption disabled at: | [ 19.100704][ T357] vprintk_emit (kernel/printk/printk.c:2471) | [ 19.100712][ T357] Tainted: [W]=WARN [ 19.100713][ T357] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 19.100715][ T357] Call Trace: [ 19.100716][ T357] [ 19.100718][ T357] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.100723][ T357] ? vprintk_emit (kernel/printk/printk.c:2471) [ 19.100725][ T357] __might_resched.cold (kernel/sched/core.c:9234) [ 19.100729][ T357] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.100733][ T357] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.100738][ T357] __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)) [ 19.100740][ T357] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.100747][ T357] ? 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) [ 19.100749][ T357] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.100753][ T357] put_chars (drivers/char/virtio_console.c:1176) [ 19.100756][ T357] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.100760][ T357] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.100763][ T357] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.100766][ T357] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.100769][ T357] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.100772][ T357] ? mark_usage (kernel/locking/lockdep.c:4690) [ 19.100774][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.100776][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.100779][ T357] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.100782][ T357] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 19.100785][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.100787][ T357] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.100790][ T357] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.100794][ T357] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.100798][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.100800][ T357] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.100804][ T357] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.100808][ T357] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.100809][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.100814][ T357] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.100817][ T357] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.100819][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.100821][ T357] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 19.100824][ T357] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.100826][ T357] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.100829][ T357] vprintk_emit (kernel/printk/printk.c:2479) [ 19.100833][ T357] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.100835][ T357] ? macsec_exit (drivers/net/macsec.c:388) macsec [ 19.100839][ T357] ? lockdep_init_map_type (kernel/locking/lockdep.c:4989 (discriminator 2)) [ 19.100842][ T357] ? macsec_exit (drivers/net/macsec.c:388) macsec [ 19.100845][ T357] _printk (kernel/printk/printk.c:2504) [ 19.100848][ T357] ? snapshot_read.cold (user.c:?) [ 19.100850][ T357] ? alloc_workqueue_lockdep_map (kernel/workqueue.c:6092) [ 19.100858][ T357] macsec_init (drivers/net/macsec.c:358 (discriminator 1)) macsec [ 19.100861][ T357] do_one_initcall (init/main.c:1357) [ 19.100867][ T357] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 19.100871][ T357] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 19.100874][ T357] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 19.100879][ T357] do_init_module (kernel/module/main.c:3117) [ 19.100883][ T357] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 19.100887][ T357] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 19.100890][ T357] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 19.100894][ T357] load_module (kernel/module/main.c:3593) [ 19.100900][ T357] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 19.100908][ T357] init_module_from_file (kernel/module/main.c:3790) [ 19.100911][ T357] ? __ia32_sys_init_module (kernel/module/main.c:3647) [ 19.100918][ T357] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 19.100922][ T357] ? 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) [ 19.100924][ T357] idempotent_init_module (kernel/module/main.c:3802) [ 19.100927][ T357] ? init_module_from_file (kernel/module/main.c:3791) [ 19.100933][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.100935][ T357] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 19.100941][ T357] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 19.100943][ T357] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 19.100946][ T357] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.100948][ T357] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.100951][ T357] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.100953][ T357] RIP: 0033:0x7efcadf1137d [ 19.100956][ T357] 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 [ 19.100958][ T357] RSP: 002b:00007ffeace6a838 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 19.100961][ T357] RAX: ffffffffffffffda RBX: 0000558295d40810 RCX: 00007efcadf1137d [ 19.100962][ T357] RDX: 0000000000000000 RSI: 000055826cef2ffd RDI: 0000000000000000 [ 19.100963][ T357] RBP: 00007ffeace6a8d0 R08: 0000000000000000 R09: 0000000000000000 [ 19.100964][ T357] R10: 0000000000000000 R11: 0000000000000246 R12: 000055826cef2ffd Finger prints: __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars