====================================== | [ 9.897380][ T193] softirqs last disabled at (33317): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.897382][ T193] Preemption disabled at: | [ 9.897383][ T193] 0x0 | [ 9.897393][ T193] Tainted: [W]=WARN [ 9.897393][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.897395][ T193] Call Trace: [ 9.897397][ T193] [ 9.897398][ T193] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.897404][ T193] __might_resched.cold (kernel/sched/core.c:9234) [ 9.897409][ T193] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.897413][ T193] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.897418][ T193] __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)) [ 9.897421][ T193] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.897427][ T193] ? 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) [ 9.897429][ T193] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.897433][ T193] put_chars (drivers/char/virtio_console.c:1176) [ 9.897435][ T193] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.897437][ T193] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.897441][ T193] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.897447][ T193] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.897453][ T193] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.897455][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897458][ T193] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.897462][ T193] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.897466][ T193] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.897468][ T193] ? 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)) [ 9.897475][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897477][ T193] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.897481][ T193] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.897485][ T193] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.897487][ T193] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.897493][ T193] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.897495][ T193] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.897497][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897500][ T193] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.897504][ T193] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.897505][ T193] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.897509][ T193] vprintk_emit (kernel/printk/printk.c:2479) [ 9.897513][ T193] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.897516][ T193] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.897520][ T193] _printk (kernel/printk/printk.c:2504) [ 9.897523][ T193] ? snapshot_read.cold (user.c:?) [ 9.897526][ T193] ? 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) [ 9.897529][ T193] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.897533][ T193] ? 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) [ 9.897536][ T193] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.897539][ T193] ? exit_notify (kernel/exit.c:780) [ 9.897542][ T193] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.897544][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897549][ T193] do_group_exit (kernel/exit.c:1151) [ 9.897552][ T193] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.897553][ T193] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.897556][ T193] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.897559][ T193] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.897562][ T193] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.897564][ T193] RIP: 0033:0x7ff04b1fb1b8 [ 9.897567][ T193] Code: Unable to access opcode bytes at 0x7ff04b1fb18e. Code starting with the faulting instruction =========================================== [ 9.897568][ T193] RSP: 002b:00007ffe72fee618 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.897570][ T193] RAX: ffffffffffffffda RBX: 00007ff04b32bf88 RCX: 00007ff04b1fb1b8 [ 9.897572][ T193] RDX: 00007ff04af45fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.897573][ T193] RBP: 00007ffe72fee670 R08: 0000000000000000 R09: 0000000000008010 [ 9.897573][ T193] R10: 00007ffe72fee430 R11: 0000000000000246 R12: 0000000000000001 [ 9.897574][ T193] R13: 0000000000000000 R14: 00007ff04b32a680 R15: 00007ff04b32bfa0 | [ 16.874244][ T291] softirqs last disabled at (16749): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 16.874246][ T291] Preemption disabled at: | [ 16.874247][ T291] vprintk_emit (kernel/printk/printk.c:2471) | [ 16.874256][ T291] Tainted: [W]=WARN [ 16.874257][ T291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.874259][ T291] Call Trace: [ 16.874260][ T291] [ 16.874262][ T291] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.874268][ T291] ? vprintk_emit (kernel/printk/printk.c:2471) [ 16.874270][ T291] __might_resched.cold (kernel/sched/core.c:9234) [ 16.874274][ T291] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.874279][ T291] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.874283][ T291] __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)) [ 16.874286][ T291] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.874291][ T291] ? 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) [ 16.874294][ T291] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.874297][ T291] put_chars (drivers/char/virtio_console.c:1176) [ 16.874299][ T291] ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934) [ 16.874301][ T291] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.874304][ T291] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.874307][ T291] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.874311][ T291] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.874314][ T291] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.874316][ T291] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.874320][ T291] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.874321][ T291] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 16.874324][ T291] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.874327][ T291] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.874331][ T291] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.874335][ T291] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.874337][ T291] ? 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)) [ 16.874340][ T291] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.874342][ T291] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.874346][ T291] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.874350][ T291] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.874352][ T291] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.874357][ T291] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.874360][ T291] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.874361][ T291] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.874364][ T291] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.874367][ T291] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.874369][ T291] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.874372][ T291] vprintk_emit (kernel/printk/printk.c:2479) [ 16.874376][ T291] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.874381][ T291] ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact [ 16.874385][ T291] _printk (kernel/printk/printk.c:2504) [ 16.874388][ T291] ? snapshot_read.cold (user.c:?) [ 16.874394][ T291] ? 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) [ 16.874397][ T291] gact_init_module (net/sched/act_gact.c:180) act_gact [ 16.874399][ T291] do_one_initcall (init/main.c:1357) [ 16.874402][ T291] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 16.874406][ T291] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 16.874409][ T291] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 16.874414][ T291] do_init_module (kernel/module/main.c:3117) [ 16.874417][ T291] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.874422][ T291] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 16.874425][ T291] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 16.874429][ T291] load_module (kernel/module/main.c:3593) [ 16.874436][ T291] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 16.874440][ T291] ? __ia32_sys_fsconfig (??:?) [ 16.874443][ T291] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.874446][ T291] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.874450][ T291] init_module_from_file (kernel/module/main.c:3790) [ 16.874453][ T291] ? __do_sys_init_module (kernel/module/main.c:3664) [ 16.874461][ T291] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.874464][ T291] ? 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) [ 16.874467][ T291] idempotent_init_module (kernel/module/main.c:3802) [ 16.874470][ T291] ? init_module_from_file (kernel/module/main.c:3791) [ 16.874477][ T291] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.874479][ T291] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 16.874490][ T291] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 16.874492][ T291] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.874496][ T291] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.874498][ T291] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.874501][ T291] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.874503][ T291] RIP: 0033:0x7f76f0f3937d [ 16.874506][ T291] 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 [ 16.874508][ T291] RSP: 002b:00007ffcadccd998 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 16.874511][ T291] RAX: ffffffffffffffda RBX: 000055ea73053810 RCX: 00007f76f0f3937d [ 16.874512][ T291] RDX: 0000000000000000 RSI: 000055ea535deffd RDI: 0000000000000000 [ 16.874513][ T291] RBP: 00007ffcadccda30 R08: 0000000000000000 R09: 0000000000000000 [ 16.874514][ T291] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ea535deffd 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