====================================== | [ 9.756775][ T194] softirqs last disabled at (27509): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.756777][ T194] Preemption disabled at: | [ 9.756777][ T194] 0x0 | [ 9.756788][ T194] Tainted: [W]=WARN [ 9.756789][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.756790][ T194] Call Trace: [ 9.756792][ T194] [ 9.756793][ T194] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.756800][ T194] __might_resched.cold (kernel/sched/core.c:9234) [ 9.756804][ T194] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.756811][ T194] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.756815][ T194] __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)) [ 9.756818][ T194] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.756824][ T194] ? 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) [ 9.756826][ T194] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.756829][ T194] put_chars (drivers/char/virtio_console.c:1176) [ 9.756832][ T194] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.756834][ T194] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.756838][ T194] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.756843][ T194] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.756849][ T194] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.756851][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.756854][ T194] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.756857][ T194] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.756861][ T194] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.756863][ T194] ? 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)) [ 9.756866][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.756869][ T194] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.756872][ T194] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.756876][ T194] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.756878][ T194] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.756883][ T194] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.756886][ T194] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.756888][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.756890][ T194] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.756894][ T194] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.756895][ T194] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.756899][ T194] vprintk_emit (kernel/printk/printk.c:2479) [ 9.756902][ T194] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.756906][ T194] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.756909][ T194] _printk (kernel/printk/printk.c:2504) [ 9.756913][ T194] ? snapshot_read.cold (user.c:?) [ 9.756916][ T194] ? 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) [ 9.756919][ T194] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.756922][ T194] ? 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) [ 9.756925][ T194] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.756929][ T194] ? exit_notify (kernel/exit.c:780) [ 9.756931][ T194] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.756933][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.756937][ T194] do_group_exit (kernel/exit.c:1151) [ 9.756940][ T194] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.756942][ T194] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.756944][ T194] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.756947][ T194] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.756950][ T194] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.756953][ T194] RIP: 0033:0x7fb1ce2891b8 [ 9.756955][ T194] Code: Unable to access opcode bytes at 0x7fb1ce28918e. Code starting with the faulting instruction =========================================== [ 9.756956][ T194] RSP: 002b:00007fff4ee187f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.756958][ T194] RAX: ffffffffffffffda RBX: 00007fb1ce3b9f88 RCX: 00007fb1ce2891b8 [ 9.756959][ T194] RDX: 00007fb1cdfd3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.756960][ T194] RBP: 00007fff4ee18850 R08: 0000000000000000 R09: 0000000000008010 [ 9.756961][ T194] R10: 00007fff4ee18610 R11: 0000000000000246 R12: 0000000000000001 [ 9.756962][ T194] R13: 0000000000000000 R14: 00007fb1ce3b8680 R15: 00007fb1ce3b9fa0 | [ 17.200110][ T316] softirqs last disabled at (22753): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 17.200113][ T316] Preemption disabled at: | [ 17.200114][ T316] vprintk_emit (kernel/printk/printk.c:2471) | [ 17.200126][ T316] Tainted: [W]=WARN [ 17.200127][ T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.200129][ T316] Call Trace: [ 17.200131][ T316] [ 17.200133][ T316] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.200141][ T316] ? vprintk_emit (kernel/printk/printk.c:2471) [ 17.200144][ T316] __might_resched.cold (kernel/sched/core.c:9234) [ 17.200151][ T316] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.200156][ T316] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.200164][ T316] __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)) [ 17.200167][ T316] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.200176][ T316] ? 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) [ 17.200180][ T316] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.200185][ T316] put_chars (drivers/char/virtio_console.c:1176) [ 17.200188][ T316] ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934) [ 17.200192][ T316] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.200197][ T316] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.200202][ T316] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.200209][ T316] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.200213][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.200215][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.200224][ T316] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.200226][ T316] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 17.200231][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.200235][ T316] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.200242][ T316] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.200249][ T316] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.200252][ T316] ? 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)) [ 17.200257][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.200261][ T316] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.200267][ T316] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.200274][ T316] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.200277][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.200287][ T316] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.200291][ T316] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.200294][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.200297][ T316] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 17.200304][ T316] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.200307][ T316] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.200313][ T316] vprintk_emit (kernel/printk/printk.c:2479) [ 17.200319][ T316] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.200329][ T316] ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact [ 17.200333][ T316] _printk (kernel/printk/printk.c:2504) [ 17.200338][ T316] ? snapshot_read.cold (user.c:?) [ 17.200350][ T316] ? 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) [ 17.200355][ T316] gact_init_module (net/sched/act_gact.c:180) act_gact [ 17.200358][ T316] do_one_initcall (init/main.c:1357) [ 17.200363][ T316] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 17.200371][ T316] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 17.200375][ T316] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 17.200383][ T316] do_init_module (kernel/module/main.c:3117) [ 17.200389][ T316] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 17.200395][ T316] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 17.200400][ T316] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 17.200407][ T316] load_module (kernel/module/main.c:3593) [ 17.200420][ T316] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 17.200427][ T316] ? __ia32_sys_fsconfig (??:?) [ 17.200432][ T316] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.200436][ T316] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.200443][ T316] init_module_from_file (kernel/module/main.c:3790) [ 17.200448][ T316] ? __do_sys_init_module (kernel/module/main.c:3664) [ 17.200463][ T316] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 17.200470][ T316] ? 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) [ 17.200475][ T316] idempotent_init_module (kernel/module/main.c:3802) [ 17.200481][ T316] ? init_module_from_file (kernel/module/main.c:3791) [ 17.200493][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.200497][ T316] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 17.200507][ T316] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 17.200510][ T316] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.200515][ T316] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.200518][ T316] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.200522][ T316] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.200526][ T316] RIP: 0033:0x7f37be88937d [ 17.200530][ T316] 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 [ 17.200533][ T316] RSP: 002b:00007ffc9697b2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 17.200537][ T316] RAX: ffffffffffffffda RBX: 000056035e1cc810 RCX: 00007f37be88937d [ 17.200539][ T316] RDX: 0000000000000000 RSI: 0000560332be3ffd RDI: 0000000000000000 [ 17.200541][ T316] RBP: 00007ffc9697b380 R08: 0000000000000000 R09: 0000000000000000 [ 17.200542][ T316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560332be3ffd Finger prints: __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print