====================================== | [ 9.555609][ T188] softirqs last disabled at (31949): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.555612][ T188] Preemption disabled at: | [ 9.555612][ T188] 0x0 | [ 9.555622][ T188] Tainted: [W]=WARN [ 9.555623][ T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.555625][ T188] Call Trace: [ 9.555626][ T188] [ 9.555628][ T188] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.555635][ T188] __might_resched.cold (kernel/sched/core.c:9234) [ 9.555639][ T188] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.555643][ 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) [ 9.555648][ 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)) [ 9.555650][ T188] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.555656][ 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) [ 9.555659][ T188] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.555662][ T188] put_chars (drivers/char/virtio_console.c:1176) [ 9.555664][ T188] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.555666][ T188] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.555670][ T188] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.555675][ T188] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.555681][ T188] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.555683][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.555686][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.555690][ T188] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.555694][ T188] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.555695][ 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)) [ 9.555698][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.555701][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.555705][ T188] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.555709][ T188] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.555710][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.555716][ T188] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.555718][ T188] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.555720][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.555723][ T188] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.555726][ T188] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.555728][ T188] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.555731][ T188] vprintk_emit (kernel/printk/printk.c:2479) [ 9.555735][ T188] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.555738][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.555742][ T188] _printk (kernel/printk/printk.c:2504) [ 9.555746][ T188] ? snapshot_read.cold (user.c:?) [ 9.555749][ 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) [ 9.555751][ T188] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.555755][ 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) [ 9.555758][ T188] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.555761][ T188] ? exit_notify (kernel/exit.c:780) [ 9.555763][ T188] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.555766][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.555770][ T188] do_group_exit (kernel/exit.c:1151) [ 9.555773][ T188] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.555775][ T188] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.555777][ T188] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.555780][ T188] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.555783][ T188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.555785][ T188] RIP: 0033:0x7f67b31371b8 [ 9.555787][ T188] Code: Unable to access opcode bytes at 0x7f67b313718e. Code starting with the faulting instruction =========================================== [ 9.555789][ T188] RSP: 002b:00007ffcb951c928 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.555791][ T188] RAX: ffffffffffffffda RBX: 00007f67b3267f88 RCX: 00007f67b31371b8 [ 9.555792][ T188] RDX: 00007f67b2e81fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.555793][ T188] RBP: 00007ffcb951c980 R08: 0000000000000000 R09: 0000000000008010 [ 9.555794][ T188] R10: 00007ffcb951c740 R11: 0000000000000246 R12: 0000000000000001 [ 9.555795][ T188] R13: 0000000000000000 R14: 00007f67b3266680 R15: 00007f67b3267fa0 | [ 16.683882][ T293] softirqs last disabled at (18227): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 16.683884][ T293] Preemption disabled at: | [ 16.683885][ T293] vprintk_emit (kernel/printk/printk.c:2471) | [ 16.683894][ T293] Tainted: [W]=WARN [ 16.683895][ T293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.683897][ T293] Call Trace: [ 16.683898][ T293] [ 16.683900][ T293] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.683906][ T293] ? vprintk_emit (kernel/printk/printk.c:2471) [ 16.683908][ T293] __might_resched.cold (kernel/sched/core.c:9234) [ 16.683912][ T293] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.683916][ T293] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.683921][ T293] __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)) [ 16.683923][ T293] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.683929][ T293] ? 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) [ 16.683932][ T293] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.683935][ T293] put_chars (drivers/char/virtio_console.c:1176) [ 16.683937][ T293] ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934) [ 16.683939][ T293] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.683942][ T293] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.683945][ T293] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.683950][ T293] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.683952][ T293] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.683954][ T293] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.683958][ T293] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.683959][ T293] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 16.683963][ T293] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.683966][ T293] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.683969][ T293] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.683973][ T293] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.683975][ T293] ? 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)) [ 16.683978][ T293] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.683982][ T293] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.683986][ T293] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.683991][ T293] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.683992][ T293] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.683997][ T293] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.684000][ T293] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.684002][ T293] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.684004][ T293] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.684008][ T293] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.684009][ T293] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.684013][ T293] vprintk_emit (kernel/printk/printk.c:2479) [ 16.684017][ T293] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.684022][ T293] ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact [ 16.684025][ T293] _printk (kernel/printk/printk.c:2504) [ 16.684029][ T293] ? snapshot_read.cold (user.c:?) [ 16.684035][ T293] ? 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) [ 16.684038][ T293] gact_init_module (net/sched/act_gact.c:180) act_gact [ 16.684040][ T293] do_one_initcall (init/main.c:1357) [ 16.684042][ T293] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 16.684047][ T293] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 16.684050][ T293] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 16.684054][ T293] do_init_module (kernel/module/main.c:3117) [ 16.684058][ T293] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.684062][ T293] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 16.684065][ T293] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 16.684069][ T293] load_module (kernel/module/main.c:3593) [ 16.684076][ T293] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 16.684080][ T293] ? __ia32_sys_fsconfig (??:?) [ 16.684082][ T293] ? ovl_real_file (fs/overlayfs/file.c:195) [ 16.684086][ T293] ? backing_file_read_iter (fs/backing-file.c:211) [ 16.684089][ T293] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.684093][ T293] init_module_from_file (kernel/module/main.c:3790) [ 16.684096][ T293] ? __do_sys_init_module (kernel/module/main.c:3664) [ 16.684104][ T293] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.684107][ T293] ? 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) [ 16.684110][ T293] idempotent_init_module (kernel/module/main.c:3802) [ 16.684113][ T293] ? init_module_from_file (kernel/module/main.c:3791) [ 16.684119][ T293] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.684122][ T293] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 16.684127][ T293] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 16.684130][ T293] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.684133][ T293] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.684135][ T293] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.684138][ T293] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.684140][ T293] RIP: 0033:0x7fb4954e737d [ 16.684144][ T293] 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 [ 16.684145][ T293] RSP: 002b:00007ffd23688758 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 16.684148][ T293] RAX: ffffffffffffffda RBX: 0000558d352b7810 RCX: 00007fb4954e737d [ 16.684150][ T293] RDX: 0000000000000000 RSI: 0000558d1b8bfffd RDI: 0000000000000000 [ 16.684151][ T293] RBP: 00007ffd236887f0 R08: 0000000000000000 R09: 0000000000000000 [ 16.684152][ T293] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558d1b8bfffd 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