====================================== | [ 9.605635][ T188] softirqs last disabled at (51863): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.605638][ T188] Preemption disabled at: | [ 9.605638][ T188] 0x0 | [ 9.605650][ T188] Tainted: [W]=WARN [ 9.605651][ T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.605653][ T188] Call Trace: [ 9.605654][ T188] [ 9.605656][ T188] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.605662][ T188] __might_resched.cold (kernel/sched/core.c:9234) [ 9.605666][ T188] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.605670][ 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) [ 9.605676][ 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)) [ 9.605678][ T188] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.605683][ 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) [ 9.605686][ T188] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.605689][ T188] put_chars (drivers/char/virtio_console.c:1176) [ 9.605692][ T188] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.605693][ T188] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.605698][ T188] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.605703][ T188] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.605709][ T188] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.605711][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.605714][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.605718][ T188] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.605722][ T188] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.605724][ 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)) [ 9.605727][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.605729][ T188] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.605733][ T188] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.605737][ T188] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.605739][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.605744][ T188] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.605747][ T188] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.605749][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.605751][ T188] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.605755][ T188] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.605756][ T188] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.605760][ T188] vprintk_emit (kernel/printk/printk.c:2479) [ 9.605763][ T188] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.605767][ T188] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.605770][ T188] _printk (kernel/printk/printk.c:2504) [ 9.605774][ T188] ? snapshot_read.cold (user.c:?) [ 9.605777][ 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) [ 9.605779][ T188] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.605783][ 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) [ 9.605786][ T188] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.605790][ T188] ? exit_notify (kernel/exit.c:780) [ 9.605792][ T188] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.605794][ T188] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.605798][ T188] do_group_exit (kernel/exit.c:1151) [ 9.605801][ T188] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.605803][ T188] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.605805][ T188] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.605808][ T188] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.605811][ T188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.605814][ T188] RIP: 0033:0x7f39187151b8 [ 9.605816][ T188] Code: Unable to access opcode bytes at 0x7f391871518e. Code starting with the faulting instruction =========================================== [ 9.605817][ T188] RSP: 002b:00007ffe3fbf2838 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.605819][ T188] RAX: ffffffffffffffda RBX: 00007f3918845f88 RCX: 00007f39187151b8 [ 9.605820][ T188] RDX: 00007f391845ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.605821][ T188] RBP: 00007ffe3fbf2890 R08: 0000000000000000 R09: 0000000000008010 [ 9.605822][ T188] R10: 00007ffe3fbf2650 R11: 0000000000000246 R12: 0000000000000001 [ 9.605823][ T188] R13: 0000000000000000 R14: 00007f3918844680 R15: 00007f3918845fa0 | [ 11.358203][ T256] softirqs last disabled at (36405): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.358205][ T256] Preemption disabled at: | [ 11.358206][ T256] 0x0 | [ 11.358217][ T256] Tainted: [W]=WARN [ 11.358218][ T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.358219][ T256] Call Trace: [ 11.358221][ T256] [ 11.358222][ T256] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.358237][ T256] __might_resched.cold (kernel/sched/core.c:9234) [ 11.358241][ T256] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.358245][ T256] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.358251][ T256] __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)) [ 11.358253][ T256] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.358259][ T256] ? 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) [ 11.358261][ T256] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.358265][ T256] put_chars (drivers/char/virtio_console.c:1176) [ 11.358267][ T256] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.358269][ T256] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.358273][ T256] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.358279][ T256] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.358285][ T256] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.358287][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.358289][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.358293][ T256] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.358297][ T256] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.358299][ T256] ? 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)) [ 11.358302][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.358304][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.358308][ T256] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.358312][ T256] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.358314][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.358320][ T256] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.358322][ T256] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.358324][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.358326][ T256] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.358330][ T256] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.358332][ T256] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.358335][ T256] vprintk_emit (kernel/printk/printk.c:2479) [ 11.358339][ T256] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.358343][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.358346][ T256] _printk (kernel/printk/printk.c:2504) [ 11.358350][ T256] ? snapshot_read.cold (user.c:?) [ 11.358353][ T256] ? 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) [ 11.358355][ T256] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.358359][ T256] ? 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) [ 11.358362][ T256] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.358365][ T256] ? exit_notify (kernel/exit.c:780) [ 11.358367][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.358370][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.358374][ T256] do_group_exit (kernel/exit.c:1151) [ 11.358377][ T256] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.358379][ T256] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.358381][ T256] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.358384][ T256] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.358387][ T256] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.358389][ T256] RIP: 0033:0x7fec0ea8e1b8 [ 11.358392][ T256] Code: Unable to access opcode bytes at 0x7fec0ea8e18e. Code starting with the faulting instruction =========================================== [ 11.358393][ T256] RSP: 002b:00007ffed1555668 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.358395][ T256] RAX: ffffffffffffffda RBX: 00007fec0ebbef88 RCX: 00007fec0ea8e1b8 [ 11.358396][ T256] RDX: 00007fec0e2ec408 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.358397][ T256] RBP: 00007ffed15556c0 R08: 0000000000000000 R09: 0000000000000050 [ 11.358398][ T256] R10: 00007ffed15554c0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print