====================================== | [ 9.827263][ T209] softirqs last disabled at (15233): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.827265][ T209] Preemption disabled at: | [ 9.827266][ T209] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.827274][ T209] Tainted: [W]=WARN [ 9.827275][ T209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.827277][ T209] Call Trace: [ 9.827279][ T209] [ 9.827280][ T209] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.827286][ T209] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.827288][ T209] __might_resched.cold (kernel/sched/core.c:9234) [ 9.827292][ T209] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.827296][ T209] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.827300][ T209] __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)) [ 9.827302][ T209] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.827309][ T209] ? 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) [ 9.827312][ T209] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.827315][ T209] put_chars (drivers/char/virtio_console.c:1176) [ 9.827318][ T209] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.827319][ T209] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.827323][ T209] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.827328][ T209] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.827335][ T209] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.827338][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.827340][ T209] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.827344][ T209] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.827348][ T209] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.827349][ T209] ? 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)) [ 9.827353][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.827354][ T209] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.827358][ T209] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.827362][ T209] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.827364][ T209] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.827369][ T209] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.827372][ T209] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.827374][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.827376][ T209] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 9.827379][ T209] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.827381][ T209] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.827384][ T209] vprintk_emit (kernel/printk/printk.c:2479) [ 9.827387][ T209] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.827392][ T209] ? exit_u32 (./include/net/pkt_cls.h:188 ./include/net/pkt_cls.h:231 net/sched/cls_u32.c:1373) cls_u32 [ 9.827394][ T209] _printk (kernel/printk/printk.c:2504) [ 9.827398][ T209] ? snapshot_read.cold (user.c:?) [ 9.827404][ T209] ? 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) [ 9.827407][ T209] init_u32 (net/sched/cls_u32.c:1370) cls_u32 [ 9.827410][ T209] do_one_initcall (init/main.c:1357) [ 9.827413][ T209] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 9.827417][ T209] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 9.827420][ T209] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 9.827425][ T209] do_init_module (kernel/module/main.c:3117) [ 9.827428][ T209] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.827432][ T209] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 9.827435][ T209] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 9.827438][ T209] load_module (kernel/module/main.c:3593) [ 9.827443][ T209] ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11)) [ 9.827447][ T209] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 9.827450][ T209] ? __ia32_sys_fsconfig (??:?) [ 9.827454][ T209] ? backing_file_read_iter (fs/backing-file.c:211) [ 9.827458][ T209] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.827461][ T209] init_module_from_file (kernel/module/main.c:3790) [ 9.827464][ T209] ? __do_sys_init_module (kernel/module/main.c:3664) [ 9.827471][ T209] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.827474][ T209] ? 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) [ 9.827477][ T209] idempotent_init_module (kernel/module/main.c:3802) [ 9.827480][ T209] ? init_module_from_file (kernel/module/main.c:3791) [ 9.827485][ T209] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.827488][ T209] ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769) [ 9.827493][ T209] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 9.827494][ T209] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.827498][ T209] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.827501][ T209] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.827503][ T209] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.827505][ T209] RIP: 0033:0x7f7bbdbaf37d [ 9.827509][ T209] 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 [ 9.827510][ T209] RSP: 002b:00007fffab1ca5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 9.827513][ T209] RAX: ffffffffffffffda RBX: 00005595c61af810 RCX: 00007f7bbdbaf37d [ 9.827514][ T209] RDX: 0000000000000000 RSI: 00005595886b0ffd RDI: 0000000000000000 [ 9.827515][ T209] RBP: 00007fffab1ca640 R08: 0000000000000000 R09: 0000000000000000 [ 9.827516][ T209] R10: 0000000000000000 R11: 0000000000000246 R12: 00005595886b0ffd Finger prints: __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars