====================================== | [ 9.804417][ T188] softirqs last disabled at (25309): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.804419][ T188] Preemption disabled at: | [ 9.804420][ T188] 0x0 | [ 9.804431][ T188] Tainted: [W]=WARN [ 9.804432][ T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.804433][ T188] Call Trace: [ 9.804435][ T188] [ 9.804437][ T188] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.804443][ T188] __might_resched.cold (kernel/sched/core.c:9234) [ 9.804448][ T188] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.804452][ T188] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.804457][ T188] __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)) [ 9.804459][ T188] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.804465][ T188] ? 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) [ 9.804468][ T188] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.804471][ T188] put_chars (drivers/char/virtio_console.c:1176) [ 9.804474][ T188] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.804476][ T188] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.804481][ T188] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.804486][ T188] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.804492][ T188] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.804495][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.804497][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.804501][ T188] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.804505][ T188] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.804507][ T188] ? 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)) [ 9.804510][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.804513][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.804517][ T188] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.804521][ T188] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.804523][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.804528][ T188] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.804531][ T188] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.804533][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.804535][ T188] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.804539][ T188] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.804540][ T188] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.804544][ T188] vprintk_emit (kernel/printk/printk.c:2479) [ 9.804548][ T188] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.804551][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.804555][ T188] _printk (kernel/printk/printk.c:2504) [ 9.804559][ T188] ? snapshot_read.cold (user.c:?) [ 9.804562][ T188] ? 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) [ 9.804564][ T188] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.804568][ T188] ? 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) [ 9.804571][ T188] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.804574][ T188] ? exit_notify (kernel/exit.c:780) [ 9.804576][ T188] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.804579][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.804583][ T188] do_group_exit (kernel/exit.c:1151) [ 9.804586][ T188] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.804588][ T188] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.804590][ T188] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.804593][ T188] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.804597][ T188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.804599][ T188] RIP: 0033:0x7ff4a1ad81b8 [ 9.804601][ T188] Code: Unable to access opcode bytes at 0x7ff4a1ad818e. Code starting with the faulting instruction =========================================== [ 9.804602][ T188] RSP: 002b:00007ffc969fd558 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.804605][ T188] RAX: ffffffffffffffda RBX: 00007ff4a1c08f88 RCX: 00007ff4a1ad81b8 [ 9.804606][ T188] RDX: 00007ff4a1822fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.804607][ T188] RBP: 00007ffc969fd5b0 R08: 0000000000000000 R09: 0000000000008010 [ 9.804608][ T188] R10: 00007ffc969fd370 R11: 0000000000000246 R12: 0000000000000001 [ 9.804609][ T188] R13: 0000000000000000 R14: 00007ff4a1c07680 R15: 00007ff4a1c08fa0 | [ 16.139897][ T249] softirqs last disabled at (28451): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 16.139900][ T249] Preemption disabled at: | [ 16.139901][ T249] vprintk_emit (kernel/printk/printk.c:2471) | [ 16.139913][ T249] Tainted: [W]=WARN [ 16.139915][ T249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.139917][ T249] Call Trace: [ 16.139919][ T249] [ 16.139921][ T249] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.139928][ T249] ? vprintk_emit (kernel/printk/printk.c:2471) [ 16.139931][ T249] __might_resched.cold (kernel/sched/core.c:9234) [ 16.139937][ T249] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.139943][ T249] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.139950][ T249] __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)) [ 16.139954][ T249] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.139962][ T249] ? 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) [ 16.139966][ T249] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.139971][ T249] put_chars (drivers/char/virtio_console.c:1176) [ 16.139974][ T249] ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934) [ 16.139977][ T249] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.139982][ T249] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.139987][ T249] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.139994][ T249] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.139998][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.140000][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.140008][ T249] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.140010][ T249] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 16.140015][ T249] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.140024][ T249] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.140033][ T249] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.140039][ T249] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.140041][ T249] ? 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)) [ 16.140047][ T249] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.140050][ T249] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.140057][ T249] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.140064][ T249] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.140067][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.140076][ T249] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.140081][ T249] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.140083][ T249] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.140087][ T249] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.140093][ T249] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.140095][ T249] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.140101][ T249] vprintk_emit (kernel/printk/printk.c:2479) [ 16.140108][ T249] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.140117][ T249] ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact [ 16.140121][ T249] _printk (kernel/printk/printk.c:2504) [ 16.140126][ T249] ? snapshot_read.cold (user.c:?) [ 16.140137][ T249] ? 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) [ 16.140142][ T249] gact_init_module (net/sched/act_gact.c:180) act_gact [ 16.140146][ T249] do_one_initcall (init/main.c:1357) [ 16.140150][ T249] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 16.140158][ T249] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 16.140162][ T249] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 16.140170][ T249] do_init_module (kernel/module/main.c:3117) [ 16.140176][ T249] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.140182][ T249] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 16.140187][ T249] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 16.140194][ T249] load_module (kernel/module/main.c:3593) [ 16.140207][ T249] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 16.140213][ T249] ? __ia32_sys_fsconfig (??:?) [ 16.140217][ T249] ? ovl_real_file (fs/overlayfs/file.c:195) [ 16.140222][ T249] ? backing_file_read_iter (fs/backing-file.c:211) [ 16.140227][ T249] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.140233][ T249] init_module_from_file (kernel/module/main.c:3790) [ 16.140239][ T249] ? __do_sys_init_module (kernel/module/main.c:3664) [ 16.140253][ T249] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.140259][ T249] ? 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) [ 16.140264][ T249] idempotent_init_module (kernel/module/main.c:3802) [ 16.140269][ T249] ? init_module_from_file (kernel/module/main.c:3791) [ 16.140280][ T249] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.140284][ T249] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 16.140293][ T249] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 16.140296][ T249] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.140301][ T249] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.140304][ T249] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.140309][ T249] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.140316][ T249] RIP: 0033:0x7ff2bccdf37d [ 16.140321][ T249] 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 [ 16.140324][ T249] RSP: 002b:00007ffd40b77e28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 16.140328][ T249] RAX: ffffffffffffffda RBX: 000055f43af38810 RCX: 00007ff2bccdf37d [ 16.140330][ T249] RDX: 0000000000000000 RSI: 000055f431812ffd RDI: 0000000000000000 [ 16.140331][ T249] RBP: 00007ffd40b77ec0 R08: 0000000000000000 R09: 0000000000000000 [ 16.140333][ T249] R10: 0000000000000000 R11: 0000000000000246 R12: 000055f431812ffd 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