====================================== | [ 9.958329][ T188] softirqs last disabled at (47987): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.958332][ T188] Preemption disabled at: | [ 9.958332][ T188] 0x0 | [ 9.958343][ T188] Tainted: [W]=WARN [ 9.958344][ T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.958345][ T188] Call Trace: [ 9.958347][ T188] [ 9.958349][ T188] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.958355][ T188] __might_resched.cold (kernel/sched/core.c:9234) [ 9.958359][ T188] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.958364][ 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) [ 9.958369][ 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)) [ 9.958372][ T188] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.958377][ 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) [ 9.958380][ T188] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.958383][ T188] put_chars (drivers/char/virtio_console.c:1176) [ 9.958386][ T188] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.958388][ T188] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.958393][ T188] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.958398][ T188] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.958404][ T188] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.958406][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.958409][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.958413][ T188] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.958417][ T188] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.958419][ 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)) [ 9.958422][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.958425][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.958429][ T188] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.958433][ T188] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.958435][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.958440][ T188] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.958443][ T188] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.958445][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.958447][ T188] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.958451][ T188] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.958453][ T188] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.958457][ T188] vprintk_emit (kernel/printk/printk.c:2479) [ 9.958460][ T188] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.958464][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.958468][ T188] _printk (kernel/printk/printk.c:2504) [ 9.958471][ T188] ? snapshot_read.cold (user.c:?) [ 9.958474][ 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) [ 9.958477][ T188] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.958481][ 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) [ 9.958484][ T188] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.958488][ T188] ? exit_notify (kernel/exit.c:780) [ 9.958490][ T188] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.958492][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.958497][ T188] do_group_exit (kernel/exit.c:1151) [ 9.958500][ T188] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.958501][ T188] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.958504][ T188] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.958507][ T188] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.958510][ T188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.958513][ T188] RIP: 0033:0x7f7bad6d31b8 [ 9.958515][ T188] Code: Unable to access opcode bytes at 0x7f7bad6d318e. Code starting with the faulting instruction =========================================== [ 9.958516][ T188] RSP: 002b:00007ffe62fac018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.958519][ T188] RAX: ffffffffffffffda RBX: 00007f7bad803f88 RCX: 00007f7bad6d31b8 [ 9.958520][ T188] RDX: 00007f7bad41dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.958521][ T188] RBP: 00007ffe62fac070 R08: 0000000000000000 R09: 0000000000008010 [ 9.958522][ T188] R10: 00007ffe62fabe30 R11: 0000000000000246 R12: 0000000000000001 [ 9.958523][ T188] R13: 0000000000000000 R14: 00007f7bad802680 R15: 00007f7bad803fa0 | [ 17.759530][ T315] softirqs last disabled at (22377): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 17.759533][ T315] Preemption disabled at: | [ 17.759534][ T315] vprintk_emit (kernel/printk/printk.c:2471) | [ 17.759546][ T315] Tainted: [W]=WARN [ 17.759547][ T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.759550][ T315] Call Trace: [ 17.759552][ T315] [ 17.759554][ T315] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.759561][ T315] ? vprintk_emit (kernel/printk/printk.c:2471) [ 17.759564][ T315] __might_resched.cold (kernel/sched/core.c:9234) [ 17.759571][ T315] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.759576][ T315] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.759584][ T315] __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)) [ 17.759587][ T315] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.759595][ T315] ? 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) [ 17.759599][ T315] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.759604][ T315] put_chars (drivers/char/virtio_console.c:1176) [ 17.759607][ T315] ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934) [ 17.759611][ T315] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.759616][ T315] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.759620][ T315] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.759634][ T315] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.759637][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.759640][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.759648][ T315] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.759650][ T315] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 17.759655][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.759659][ T315] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.759666][ T315] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.759672][ T315] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.759674][ T315] ? 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)) [ 17.759679][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.759683][ T315] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.759690][ T315] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.759697][ T315] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.759699][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.759708][ T315] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.759712][ T315] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.759715][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.759719][ T315] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 17.759725][ T315] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.759727][ T315] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.759733][ T315] vprintk_emit (kernel/printk/printk.c:2479) [ 17.759739][ T315] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.759748][ T315] ? udp_tunnel_nic_cleanup_module (net/ipv4/udp_tunnel_core.c:237) udp_tunnel [ 17.759753][ T315] _printk (kernel/printk/printk.c:2504) [ 17.759759][ T315] ? snapshot_read.cold (user.c:?) [ 17.759769][ T315] ? 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) [ 17.759774][ T315] gact_init_module (net/sched/act_gact.c:180) act_gact [ 17.759778][ T315] do_one_initcall (init/main.c:1357) [ 17.759782][ T315] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 17.759790][ T315] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 17.759794][ T315] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 17.759801][ T315] do_init_module (kernel/module/main.c:3117) [ 17.759807][ T315] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 17.759812][ T315] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 17.759817][ T315] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 17.759824][ T315] load_module (kernel/module/main.c:3593) [ 17.759836][ T315] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 17.759843][ T315] ? __ia32_sys_fsconfig (??:?) [ 17.759847][ T315] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.759851][ T315] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.759858][ T315] init_module_from_file (kernel/module/main.c:3790) [ 17.759863][ T315] ? __do_sys_init_module (kernel/module/main.c:3664) [ 17.759877][ T315] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 17.759883][ T315] ? 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) [ 17.759888][ T315] idempotent_init_module (kernel/module/main.c:3802) [ 17.759893][ T315] ? init_module_from_file (kernel/module/main.c:3791) [ 17.759904][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.759908][ T315] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 17.759918][ T315] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 17.759921][ T315] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.759926][ T315] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.759928][ T315] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.759933][ T315] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.759936][ T315] RIP: 0033:0x7f4e31ba837d [ 17.759941][ T315] 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 [ 17.759943][ T315] RSP: 002b:00007fff1a1c7098 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 17.759947][ T315] RAX: ffffffffffffffda RBX: 000055dcc50c7810 RCX: 00007f4e31ba837d [ 17.759949][ T315] RDX: 0000000000000000 RSI: 000055dcbff75ffd RDI: 0000000000000000 [ 17.759951][ T315] RBP: 00007fff1a1c7130 R08: 0000000000000000 R09: 0000000000000000 [ 17.759952][ T315] R10: 0000000000000000 R11: 0000000000000246 R12: 000055dcbff75ffd 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