====================================== | [ 11.136201][ T250] softirqs last disabled at (37323): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.136205][ T250] Preemption disabled at: | [ 11.136205][ T250] 0x0 | [ 11.136218][ T250] Tainted: [W]=WARN [ 11.136220][ T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.136222][ T250] Call Trace: [ 11.136224][ T250] [ 11.136226][ T250] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.136233][ T250] __might_resched.cold (kernel/sched/core.c:9234) [ 11.136240][ T250] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.136245][ 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) [ 11.136252][ 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)) [ 11.136256][ T250] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.136265][ 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) [ 11.136268][ T250] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.136273][ T250] put_chars (drivers/char/virtio_console.c:1176) [ 11.136278][ T250] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.136280][ T250] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.136287][ T250] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.136296][ T250] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.136306][ T250] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.136310][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.136313][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.136320][ T250] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.136326][ T250] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.136328][ 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)) [ 11.136333][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.136337][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.136343][ T250] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.136350][ T250] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.136352][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.136361][ T250] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.136365][ T250] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.136368][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.136371][ T250] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.136377][ T250] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.136380][ T250] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.136385][ T250] vprintk_emit (kernel/printk/printk.c:2479) [ 11.136391][ T250] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.136396][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.136402][ T250] _printk (kernel/printk/printk.c:2504) [ 11.136407][ T250] ? snapshot_read.cold (user.c:?) [ 11.136411][ T250] ? 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) [ 11.136415][ T250] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.136421][ T250] ? 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) [ 11.136426][ T250] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.136431][ T250] ? exit_notify (kernel/exit.c:780) [ 11.136433][ T250] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.136437][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.136444][ T250] do_group_exit (kernel/exit.c:1151) [ 11.136449][ T250] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.136452][ T250] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.136455][ T250] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.136460][ T250] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.136464][ T250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.136467][ T250] RIP: 0033:0x7f09af0171b8 [ 11.136470][ T250] Code: Unable to access opcode bytes at 0x7f09af01718e. Code starting with the faulting instruction =========================================== [ 11.136472][ T250] RSP: 002b:00007fff45274ea8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.136475][ T250] RAX: ffffffffffffffda RBX: 00007f09af147f88 RCX: 00007f09af0171b8 [ 11.136477][ T250] RDX: 00007f09aed61fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.136478][ T250] RBP: 00007fff45274f00 R08: 0000000000000000 R09: 0000000000000000 [ 11.136480][ T250] R10: 00007fff45274cc0 R11: 0000000000000246 R12: 0000000000000001 [ 11.136481][ T250] R13: 0000000000000000 R14: 00007f09af146680 R15: 00007f09af147fa0 | [ 13.062276][ T321] softirqs last disabled at (40765): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 13.062278][ T321] Preemption disabled at: | [ 13.062279][ T321] 0x0 | [ 13.062289][ T321] Tainted: [W]=WARN [ 13.062290][ T321] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.062291][ T321] Call Trace: [ 13.062293][ T321] [ 13.062294][ T321] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.062300][ T321] __might_resched.cold (kernel/sched/core.c:9234) [ 13.062305][ T321] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.062309][ T321] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.062315][ T321] __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)) [ 13.062317][ T321] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.062323][ T321] ? 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) [ 13.062326][ T321] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.062329][ T321] put_chars (drivers/char/virtio_console.c:1176) [ 13.062332][ T321] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.062333][ T321] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.062338][ T321] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.062343][ T321] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.062350][ T321] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.062352][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.062355][ T321] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.062359][ T321] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.062362][ T321] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.062364][ T321] ? 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)) [ 13.062367][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.062370][ T321] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.062373][ T321] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.062377][ T321] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.062379][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.062384][ T321] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.062387][ T321] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.062389][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.062391][ T321] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.062395][ T321] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.062396][ T321] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.062400][ T321] vprintk_emit (kernel/printk/printk.c:2479) [ 13.062403][ T321] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.062407][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.062410][ T321] _printk (kernel/printk/printk.c:2504) [ 13.062414][ T321] ? snapshot_read.cold (user.c:?) [ 13.062416][ T321] ? 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) [ 13.062419][ T321] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.062422][ T321] ? 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) [ 13.062425][ T321] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.062429][ T321] ? exit_notify (kernel/exit.c:780) [ 13.062430][ T321] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.062433][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.062437][ T321] do_group_exit (kernel/exit.c:1151) [ 13.062440][ T321] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.062442][ T321] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.062444][ T321] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.062448][ T321] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.062451][ T321] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.062453][ T321] RIP: 0033:0x7f0cc51b61b8 [ 13.062455][ T321] Code: Unable to access opcode bytes at 0x7f0cc51b618e. Code starting with the faulting instruction =========================================== [ 13.062456][ T321] RSP: 002b:00007ffd804aa788 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.062459][ T321] RAX: ffffffffffffffda RBX: 00007f0cc52e6f88 RCX: 00007f0cc51b61b8 [ 13.062460][ T321] RDX: 00007f0cc50b21c8 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 13.062461][ T321] RBP: 00007ffd804aa7e0 R08: 0000000000000000 R09: 0000000000000000 [ 13.062462][ T321] R10: 00007f0cc53141a0 R11: 0000000000000246 R12: 0000000000000001 [ 13.062462][ T321] R13: 0000000000000000 R14: 00007f0cc52e5680 R15: 00007f0cc52e6fa0 | [ 25.354268][ T478] softirqs last disabled at (5792261): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 25.354270][ T478] Preemption disabled at: | [ 25.354271][ T478] 0x0 | [ 25.354281][ T478] Tainted: [W]=WARN [ 25.354282][ T478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.354284][ T478] Call Trace: [ 25.354285][ T478] [ 25.354287][ T478] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.354293][ T478] __might_resched.cold (kernel/sched/core.c:9234) [ 25.354297][ T478] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.354302][ T478] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.354306][ T478] __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)) [ 25.354309][ T478] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.354314][ T478] ? 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) [ 25.354317][ T478] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.354320][ T478] put_chars (drivers/char/virtio_console.c:1176) [ 25.354323][ T478] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 25.354325][ T478] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.354328][ T478] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.354332][ T478] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.354335][ T478] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.354338][ T478] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.354342][ T478] ? mark_usage (kernel/locking/lockdep.c:4690) [ 25.354343][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.354345][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.354349][ T478] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.354351][ T478] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 25.354354][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.354356][ T478] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.354360][ T478] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.354364][ T478] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.354366][ T478] ? 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)) [ 25.354369][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.354371][ T478] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.354375][ T478] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.354379][ T478] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.354381][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.354386][ T478] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.354388][ T478] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.354390][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.354392][ T478] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 25.354396][ T478] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.354398][ T478] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.354401][ T478] vprintk_emit (kernel/printk/printk.c:2479) [ 25.354405][ T478] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.354408][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.354411][ T478] _printk (kernel/printk/printk.c:2504) [ 25.354415][ T478] ? snapshot_read.cold (user.c:?) [ 25.354418][ T478] ? 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) [ 25.354420][ T478] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 25.354424][ T478] ? 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) [ 25.354427][ T478] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 25.354430][ T478] ? exit_notify (kernel/exit.c:780) [ 25.354435][ T478] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 25.354437][ T478] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 25.354439][ T478] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.354444][ T478] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.354446][ T478] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.354449][ T478] RIP: 0033:0x7fc09ae4cc49 [ 25.354451][ T478] Code: Unable to access opcode bytes at 0x7fc09ae4cc1f. Code starting with the faulting instruction =========================================== [ 25.354452][ T478] RSP: 002b:00007fc09a60be60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 25.354454][ T478] RAX: ffffffffffffffda RBX: 00007fc09a60c6c0 RCX: 00007fc09ae4cc49 [ 25.354455][ T478] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 25.354457][ T478] RBP: 00007fc09a60bf70 R08: 0000000000000001 R09: 00007fc09a60c6c0 [ 25.354457][ T478] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fc099e0c000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print