====================================== | [ 9.597232][ T188] softirqs last disabled at (34679): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.597235][ T188] Preemption disabled at: | [ 9.597235][ T188] 0x0 | [ 9.597246][ T188] Tainted: [W]=WARN [ 9.597247][ T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.597248][ T188] Call Trace: [ 9.597250][ T188] [ 9.597252][ T188] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.597258][ T188] __might_resched.cold (kernel/sched/core.c:9234) [ 9.597263][ T188] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.597267][ 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) [ 9.597272][ 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)) [ 9.597274][ T188] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.597280][ 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) [ 9.597283][ T188] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.597286][ T188] put_chars (drivers/char/virtio_console.c:1176) [ 9.597289][ T188] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.597290][ T188] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.597295][ T188] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.597300][ T188] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.597307][ T188] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.597309][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.597311][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.597315][ T188] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.597319][ T188] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.597321][ 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)) [ 9.597324][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.597326][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.597330][ T188] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.597334][ T188] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.597336][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.597341][ T188] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.597344][ T188] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.597346][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.597348][ T188] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.597352][ T188] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.597354][ T188] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.597357][ T188] vprintk_emit (kernel/printk/printk.c:2479) [ 9.597361][ T188] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.597364][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.597368][ T188] _printk (kernel/printk/printk.c:2504) [ 9.597371][ T188] ? snapshot_read.cold (user.c:?) [ 9.597374][ 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) [ 9.597377][ T188] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.597381][ 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) [ 9.597383][ T188] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.597387][ T188] ? exit_notify (kernel/exit.c:780) [ 9.597389][ T188] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.597391][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.597396][ T188] do_group_exit (kernel/exit.c:1151) [ 9.597398][ T188] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.597400][ T188] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.597402][ T188] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.597405][ T188] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.597409][ T188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.597411][ T188] RIP: 0033:0x7f8367c101b8 [ 9.597413][ T188] Code: Unable to access opcode bytes at 0x7f8367c1018e. Code starting with the faulting instruction =========================================== [ 9.597414][ T188] RSP: 002b:00007ffeab7415f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.597417][ T188] RAX: ffffffffffffffda RBX: 00007f8367d40f88 RCX: 00007f8367c101b8 [ 9.597418][ T188] RDX: 00007f836795afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.597419][ T188] RBP: 00007ffeab741650 R08: 0000000000000000 R09: 0000000000008010 [ 9.597420][ T188] R10: 00007ffeab741410 R11: 0000000000000246 R12: 0000000000000001 [ 9.597421][ T188] R13: 0000000000000000 R14: 00007f8367d3f680 R15: 00007f8367d40fa0 | [ 11.149528][ T250] softirqs last disabled at (27231): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.149530][ T250] Preemption disabled at: | [ 11.149531][ T250] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.149540][ T250] Tainted: [W]=WARN [ 11.149541][ T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.149543][ T250] Call Trace: [ 11.149545][ T250] [ 11.149546][ T250] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.149551][ T250] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.149554][ T250] __might_resched.cold (kernel/sched/core.c:9234) [ 11.149558][ T250] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.149563][ T250] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.149568][ T250] __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)) [ 11.149570][ T250] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.149576][ T250] ? 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) [ 11.149579][ T250] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.149582][ T250] put_chars (drivers/char/virtio_console.c:1176) [ 11.149585][ T250] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.149586][ T250] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.149591][ T250] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.149594][ T250] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.149598][ T250] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.149601][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.149606][ T250] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.149609][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.149614][ T250] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.149618][ T250] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.149620][ T250] ? 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)) [ 11.149623][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.149626][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.149630][ T250] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.149634][ T250] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.149636][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.149641][ T250] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.149644][ T250] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.149646][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.149648][ T250] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.149652][ T250] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.149654][ T250] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.149657][ T250] vprintk_emit (kernel/printk/printk.c:2479) [ 11.149661][ T250] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.149667][ T250] ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q [ 11.149671][ T250] _printk (kernel/printk/printk.c:2504) [ 11.149675][ T250] ? snapshot_read.cold (user.c:?) [ 11.149689][ T250] ? 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) [ 11.149692][ T250] 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 [ 11.149695][ T250] do_one_initcall (init/main.c:1357) [ 11.149698][ T250] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 11.149702][ T250] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 11.149705][ T250] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 11.149710][ T250] do_init_module (kernel/module/main.c:3117) [ 11.149714][ T250] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 11.149718][ T250] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 11.149721][ T250] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 11.149725][ T250] load_module (kernel/module/main.c:3593) [ 11.149733][ T250] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 11.149737][ T250] ? __ia32_sys_fsconfig (??:?) [ 11.149740][ T250] ? ovl_real_file (fs/overlayfs/file.c:195) [ 11.149744][ T250] ? backing_file_read_iter (fs/backing-file.c:211) [ 11.149747][ T250] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.149751][ T250] init_module_from_file (kernel/module/main.c:3790) [ 11.149754][ T250] ? __do_sys_init_module (kernel/module/main.c:3664) [ 11.149762][ T250] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.149766][ T250] ? 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) [ 11.149769][ T250] idempotent_init_module (kernel/module/main.c:3802) [ 11.149773][ T250] ? init_module_from_file (kernel/module/main.c:3791) [ 11.149779][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.149781][ T250] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 11.149787][ T250] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 11.149789][ T250] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 11.149793][ T250] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.149795][ T250] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.149797][ T250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.149800][ T250] RIP: 0033:0x7fed09dd237d [ 11.149803][ T250] 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 [ 11.149805][ T250] RSP: 002b:00007ffe93ec0618 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 11.149808][ T250] RAX: ffffffffffffffda RBX: 0000558047995810 RCX: 00007fed09dd237d [ 11.149809][ T250] RDX: 0000000000000000 RSI: 000055803328cffd RDI: 0000000000000000 [ 11.149810][ T250] RBP: 00007ffe93ec06b0 R08: 0000000000000000 R09: 0000000000000000 [ 11.149811][ T250] R10: 0000000000000000 R11: 0000000000000246 R12: 000055803328cffd 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