====================================== | [ 9.799020][ T187] softirqs last disabled at (26207): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.799023][ T187] Preemption disabled at: | [ 9.799023][ T187] 0x0 | [ 9.799034][ T187] Tainted: [W]=WARN [ 9.799035][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.799037][ T187] Call Trace: [ 9.799038][ T187] [ 9.799040][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.799046][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 9.799051][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.799055][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.799061][ T187] __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)) [ 9.799063][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.799069][ T187] ? 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) [ 9.799072][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.799075][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 9.799077][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.799079][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.799084][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.799089][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.799095][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.799097][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.799100][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.799104][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.799108][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.799109][ T187] ? 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)) [ 9.799113][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.799115][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.799119][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.799123][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.799125][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.799130][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.799133][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.799134][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.799137][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.799140][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.799142][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.799146][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 9.799149][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.799153][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.799156][ T187] _printk (kernel/printk/printk.c:2504) [ 9.799160][ T187] ? snapshot_read.cold (user.c:?) [ 9.799163][ T187] ? 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) [ 9.799165][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.799169][ T187] ? 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) [ 9.799172][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.799176][ T187] ? exit_notify (kernel/exit.c:780) [ 9.799178][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.799181][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.799185][ T187] do_group_exit (kernel/exit.c:1151) [ 9.799188][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.799189][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.799192][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.799195][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.799198][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.799200][ T187] RIP: 0033:0x7f2dd39e91b8 [ 9.799202][ T187] Code: Unable to access opcode bytes at 0x7f2dd39e918e. Code starting with the faulting instruction =========================================== [ 9.799204][ T187] RSP: 002b:00007ffec16539e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.799206][ T187] RAX: ffffffffffffffda RBX: 00007f2dd3b19f88 RCX: 00007f2dd39e91b8 [ 9.799208][ T187] RDX: 00007f2dd3733fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.799209][ T187] RBP: 00007ffec1653a40 R08: 0000000000000000 R09: 0000000000008010 [ 9.799210][ T187] R10: 00007ffec1653800 R11: 0000000000000246 R12: 0000000000000001 [ 9.799211][ T187] R13: 0000000000000000 R14: 00007f2dd3b18680 R15: 00007f2dd3b19fa0 | [ 12.172815][ T269] softirqs last disabled at (20283): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.172817][ T269] Preemption disabled at: | [ 12.172818][ T269] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.172827][ T269] Tainted: [W]=WARN [ 12.172828][ T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.172830][ T269] Call Trace: [ 12.172831][ T269] [ 12.172833][ T269] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.172842][ T269] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.172845][ T269] __might_resched.cold (kernel/sched/core.c:9234) [ 12.172849][ T269] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.172853][ T269] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.172858][ T269] __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)) [ 12.172860][ T269] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.172866][ T269] ? 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) [ 12.172869][ T269] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.172872][ T269] put_chars (drivers/char/virtio_console.c:1176) [ 12.172874][ T269] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.172876][ T269] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.172880][ T269] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.172883][ T269] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.172887][ T269] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.172890][ T269] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.172895][ T269] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.172897][ T269] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.172902][ T269] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.172906][ T269] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.172908][ T269] ? 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)) [ 12.172911][ T269] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.172913][ T269] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.172917][ T269] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.172921][ T269] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.172923][ T269] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.172928][ T269] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.172931][ T269] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.172932][ T269] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.172935][ T269] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.172938][ T269] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.172940][ T269] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.172943][ T269] vprintk_emit (kernel/printk/printk.c:2479) [ 12.172947][ T269] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.172953][ T269] ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q [ 12.172957][ T269] _printk (kernel/printk/printk.c:2504) [ 12.172960][ T269] ? snapshot_read.cold (user.c:?) [ 12.172966][ T269] ? 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) [ 12.172969][ T269] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q [ 12.172972][ T269] do_one_initcall (init/main.c:1357) [ 12.172975][ T269] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 12.172980][ T269] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 12.172983][ T269] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 12.172987][ T269] do_init_module (kernel/module/main.c:3117) [ 12.172991][ T269] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.172995][ T269] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 12.172998][ T269] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 12.173002][ T269] load_module (kernel/module/main.c:3593) [ 12.173009][ T269] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 12.173013][ T269] ? __ia32_sys_fsconfig (??:?) [ 12.173016][ T269] ? ovl_real_file (fs/overlayfs/file.c:195) [ 12.173020][ T269] ? backing_file_read_iter (fs/backing-file.c:211) [ 12.173023][ T269] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.173027][ T269] init_module_from_file (kernel/module/main.c:3790) [ 12.173030][ T269] ? __do_sys_init_module (kernel/module/main.c:3664) [ 12.173038][ T269] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.173041][ T269] ? 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) [ 12.173044][ T269] idempotent_init_module (kernel/module/main.c:3802) [ 12.173048][ T269] ? init_module_from_file (kernel/module/main.c:3791) [ 12.173054][ T269] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.173057][ T269] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 12.173062][ T269] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 12.173064][ T269] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.173068][ T269] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.173070][ T269] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.173073][ T269] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.173075][ T269] RIP: 0033:0x7eff30a9037d [ 12.173078][ T269] 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 [ 12.173080][ T269] RSP: 002b:00007ffe14765488 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 12.173083][ T269] RAX: ffffffffffffffda RBX: 00005577d3c81810 RCX: 00007eff30a9037d [ 12.173084][ T269] RDX: 0000000000000000 RSI: 00005577d0b1bffd RDI: 0000000000000000 [ 12.173085][ T269] RBP: 00007ffe14765520 R08: 0000000000000000 R09: 0000000000000000 [ 12.173086][ T269] R10: 0000000000000000 R11: 0000000000000246 R12: 00005577d0b1bffd 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