====================================== | [ 9.839307][ T177] softirqs last disabled at (23163): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.839309][ T177] Preemption disabled at: | [ 9.839310][ T177] 0x0 | [ 9.839320][ T177] Tainted: [W]=WARN [ 9.839321][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.839323][ T177] Call Trace: [ 9.839324][ T177] [ 9.839326][ T177] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.839331][ T177] __might_resched.cold (kernel/sched/core.c:9234) [ 9.839336][ T177] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.839339][ T177] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.839345][ T177] __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)) [ 9.839347][ T177] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.839353][ T177] ? 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) [ 9.839356][ T177] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.839359][ T177] put_chars (drivers/char/virtio_console.c:1176) [ 9.839362][ T177] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.839369][ T177] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.839376][ T177] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.839379][ T177] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.839383][ T177] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.839387][ T177] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.839388][ T177] ? 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)) [ 9.839391][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.839394][ T177] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.839398][ T177] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.839402][ T177] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.839403][ T177] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.839409][ T177] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.839411][ T177] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.839413][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.839416][ T177] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.839420][ T177] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.839422][ T177] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.839425][ T177] vprintk_emit (kernel/printk/printk.c:2479) [ 9.839428][ T177] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.839431][ T177] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.839435][ T177] _printk (kernel/printk/printk.c:2504) [ 9.839439][ T177] ? snapshot_read.cold (user.c:?) [ 9.839442][ T177] ? 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) [ 9.839444][ T177] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.839448][ T177] ? 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) [ 9.839451][ T177] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.839455][ T177] ? exit_notify (kernel/exit.c:780) [ 9.839457][ T177] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.839460][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.839463][ T177] do_group_exit (kernel/exit.c:1151) [ 9.839467][ T177] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.839469][ T177] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.839471][ T177] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.839475][ T177] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.839479][ T177] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.839481][ T177] RIP: 0033:0x7f6dad6d51b8 [ 9.839483][ T177] Code: Unable to access opcode bytes at 0x7f6dad6d518e. Code starting with the faulting instruction =========================================== [ 9.839484][ T177] RSP: 002b:00007ffcc320b3f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.839487][ T177] RAX: ffffffffffffffda RBX: 00007f6dad805f88 RCX: 00007f6dad6d51b8 [ 9.839488][ T177] RDX: 00007f6dad41ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.839489][ T177] RBP: 00007ffcc320b450 R08: 0000000000000000 R09: 0000000000000050 [ 9.839490][ T177] R10: 00007ffcc320b210 R11: 0000000000000246 R12: 0000000000000001 [ 9.839490][ T177] R13: 0000000000000000 R14: 00007f6dad804680 R15: 00007f6dad805fa0 | [ 10.869186][ T205] softirqs last disabled at (33195): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.869188][ T205] Preemption disabled at: | [ 10.869189][ T205] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.869198][ T205] Tainted: [W]=WARN [ 10.869199][ T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.869201][ T205] Call Trace: [ 10.869203][ T205] [ 10.869204][ T205] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.869209][ T205] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.869211][ T205] __might_resched.cold (kernel/sched/core.c:9234) [ 10.869216][ T205] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.869219][ T205] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.869224][ T205] __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)) [ 10.869227][ T205] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.869233][ T205] ? 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) [ 10.869236][ T205] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.869240][ T205] put_chars (drivers/char/virtio_console.c:1176) [ 10.869243][ T205] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.869246][ T205] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.869252][ T205] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.869259][ T205] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.869261][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.869265][ T205] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.869271][ T205] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.869275][ T205] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.869276][ T205] ? 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)) [ 10.869279][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.869281][ T205] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.869285][ T205] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.869289][ T205] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.869290][ T205] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.869296][ T205] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.869298][ T205] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.869300][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.869302][ T205] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.869311][ T205] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.869313][ T205] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.869316][ T205] vprintk_emit (kernel/printk/printk.c:2479) [ 10.869320][ T205] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.869325][ T205] ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip [ 10.869328][ T205] _printk (kernel/printk/printk.c:2504) [ 10.869332][ T205] ? snapshot_read.cold (user.c:?) [ 10.869339][ T205] ? 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) [ 10.869342][ T205] ipip_init (net/ipv4/ipip.c:438) ipip [ 10.869345][ T205] do_one_initcall (init/main.c:1357) [ 10.869348][ T205] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 10.869353][ T205] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 10.869356][ T205] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 10.869361][ T205] do_init_module (kernel/module/main.c:3117) [ 10.869364][ T205] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.869369][ T205] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 10.869372][ T205] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 10.869376][ T205] load_module (kernel/module/main.c:3593) [ 10.869383][ T205] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 10.869387][ T205] ? __ia32_sys_fsconfig (??:?) [ 10.869390][ T205] ? ovl_real_file (fs/overlayfs/file.c:195) [ 10.869395][ T205] ? backing_file_read_iter (fs/backing-file.c:211) [ 10.869398][ T205] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.869402][ T205] init_module_from_file (kernel/module/main.c:3790) [ 10.869405][ T205] ? __ia32_sys_init_module (kernel/module/main.c:3647) [ 10.869412][ T205] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.869417][ T205] ? 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) [ 10.869420][ T205] idempotent_init_module (kernel/module/main.c:3802) [ 10.869423][ T205] ? init_module_from_file (kernel/module/main.c:3791) [ 10.869429][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.869431][ T205] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.869436][ T205] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 10.869438][ T205] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.869442][ T205] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.869444][ T205] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.869447][ T205] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.869450][ T205] RIP: 0033:0x7fcc5292537d [ 10.869453][ T205] 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 [ 10.869455][ T205] RSP: 002b:00007ffdf0a11818 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.869458][ T205] RAX: ffffffffffffffda RBX: 0000560cc6f33810 RCX: 00007fcc5292537d [ 10.869459][ T205] RDX: 0000000000000000 RSI: 0000560cbaed8ffd RDI: 0000000000000002 [ 10.869460][ T205] RBP: 00007ffdf0a118b0 R08: 0000000000000000 R09: 0000000000000000 [ 10.869461][ T205] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560cbaed8ffd 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