====================================== | [ 9.267826][ T198] softirqs last disabled at (25143): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.267829][ T198] Preemption disabled at: | [ 9.267829][ T198] 0x0 | [ 9.267839][ T198] Tainted: [W]=WARN [ 9.267840][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.267841][ T198] Call Trace: [ 9.267843][ T198] [ 9.267844][ T198] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.267850][ T198] __might_resched.cold (kernel/sched/core.c:9234) [ 9.267855][ T198] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.267859][ T198] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.267863][ T198] __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)) [ 9.267865][ T198] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.267871][ T198] ? 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) [ 9.267874][ T198] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.267878][ T198] put_chars (drivers/char/virtio_console.c:1176) [ 9.267880][ T198] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.267881][ T198] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.267885][ T198] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.267891][ T198] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.267898][ T198] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.267901][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267903][ T198] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.267907][ T198] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.267911][ T198] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.267913][ T198] ? 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)) [ 9.267916][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267917][ T198] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.267921][ T198] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.267925][ T198] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.267927][ T198] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.267932][ T198] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.267935][ T198] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.267937][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267938][ T198] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 9.267942][ T198] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.267944][ T198] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.267946][ T198] vprintk_emit (kernel/printk/printk.c:2479) [ 9.267949][ T198] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.267952][ T198] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.267956][ T198] _printk (kernel/printk/printk.c:2504) [ 9.267959][ T198] ? snapshot_read.cold (user.c:?) [ 9.267962][ T198] ? 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) [ 9.267965][ T198] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.267968][ T198] ? 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) [ 9.267971][ T198] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.267975][ T198] ? exit_notify (kernel/exit.c:780) [ 9.267976][ T198] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.267979][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267982][ T198] do_group_exit (kernel/exit.c:1151) [ 9.267985][ T198] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.267987][ T198] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.267989][ T198] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.267993][ T198] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.267996][ T198] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.267998][ T198] RIP: 0033:0x7fb31aaad1b8 [ 9.268000][ T198] Code: Unable to access opcode bytes at 0x7fb31aaad18e. Code starting with the faulting instruction =========================================== [ 9.268001][ T198] RSP: 002b:00007fffa4e2e7b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.268004][ T198] RAX: ffffffffffffffda RBX: 00007fb31abddf88 RCX: 00007fb31aaad1b8 [ 9.268005][ T198] RDX: 00007fb31a7f7fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.268006][ T198] RBP: 00007fffa4e2e810 R08: 0000000000000000 R09: 0000000000008010 [ 9.268006][ T198] R10: 00007fffa4e2e5d0 R11: 0000000000000246 R12: 0000000000000001 [ 9.268007][ T198] R13: 0000000000000000 R14: 00007fb31abdc680 R15: 00007fb31abddfa0 | [ 10.695167][ T263] softirqs last disabled at (23043): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.695169][ T263] Preemption disabled at: | [ 10.695170][ T263] 0x0 | [ 10.695180][ T263] Tainted: [W]=WARN [ 10.695181][ T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.695182][ T263] Call Trace: [ 10.695184][ T263] [ 10.695185][ T263] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.695192][ T263] __might_resched.cold (kernel/sched/core.c:9234) [ 10.695196][ T263] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.695200][ T263] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.695204][ T263] __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)) [ 10.695206][ T263] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.695212][ T263] ? 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) [ 10.695215][ T263] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.695219][ T263] put_chars (drivers/char/virtio_console.c:1176) [ 10.695221][ T263] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.695222][ T263] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.695226][ T263] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.695231][ T263] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.695239][ T263] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.695241][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.695243][ T263] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.695247][ T263] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.695251][ T263] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.695253][ T263] ? 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)) [ 10.695256][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.695257][ T263] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.695261][ T263] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.695267][ T263] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.695269][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.695274][ T263] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.695277][ T263] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.695279][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.695281][ T263] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.695284][ T263] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.695286][ T263] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.695289][ T263] vprintk_emit (kernel/printk/printk.c:2479) [ 10.695292][ T263] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.695294][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.695298][ T263] _printk (kernel/printk/printk.c:2504) [ 10.695301][ T263] ? snapshot_read.cold (user.c:?) [ 10.695304][ T263] ? 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) [ 10.695307][ T263] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.695310][ T263] ? 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) [ 10.695313][ T263] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.695317][ T263] ? exit_notify (kernel/exit.c:780) [ 10.695318][ T263] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.695321][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.695324][ T263] do_group_exit (kernel/exit.c:1151) [ 10.695327][ T263] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.695328][ T263] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.695331][ T263] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.695335][ T263] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.695338][ T263] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.695340][ T263] RIP: 0033:0x7fee3b07c1b8 [ 10.695342][ T263] Code: Unable to access opcode bytes at 0x7fee3b07c18e. Code starting with the faulting instruction =========================================== [ 10.695343][ T263] RSP: 002b:00007ffea19860d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.695345][ T263] RAX: ffffffffffffffda RBX: 00007fee3b1acf88 RCX: 00007fee3b07c1b8 [ 10.695346][ T263] RDX: 00007fee3adc6fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.695347][ T263] RBP: 00007ffea1986130 R08: 0000000000000000 R09: 0000000000000050 [ 10.695348][ T263] R10: 00007ffea1985ef0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print