====================================== | [ 23.580623][ T827] softirqs last disabled at (0): 0x0 | [ 23.580624][ T827] Preemption disabled at: | [ 23.580625][ T827] 0x0 | [ 23.580633][ T827] Tainted: [W]=WARN [ 23.580634][ T827] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.580636][ T827] Call Trace: [ 23.580637][ T827] [ 23.580638][ T827] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.580644][ T827] __might_resched.cold (kernel/sched/core.c:9234) [ 23.580648][ T827] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.580651][ T827] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 23.580654][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580658][ T827] __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)) [ 23.580661][ T827] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 23.580663][ T827] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.580668][ T827] ? 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) [ 23.580669][ T827] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.580672][ T827] put_chars (drivers/char/virtio_console.c:1176) [ 23.580674][ T827] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.580676][ T827] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 23.580679][ T827] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.580683][ T827] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.580685][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580687][ T827] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.580689][ T827] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.580691][ T827] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.580693][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580694][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580695][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580697][ T827] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.580698][ T827] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 23.580700][ T827] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.580702][ T827] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.580704][ T827] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.580706][ T827] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.580707][ T827] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.580709][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580710][ T827] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 23.580711][ T827] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 23.580713][ T827] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 23.580714][ T827] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.580716][ T827] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.580718][ T827] vprintk_emit (kernel/printk/printk.c:2479) [ 23.580720][ T827] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.580722][ T827] _printk (kernel/printk/printk.c:2504) [ 23.580725][ T827] ? snapshot_read.cold (user.c:?) [ 23.580727][ T827] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.580730][ T827] ? 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) [ 23.580732][ T827] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 23.580734][ T827] ? 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) [ 23.580735][ T827] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 23.580738][ T827] ? exit_notify (kernel/exit.c:780) [ 23.580741][ T827] ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3)) [ 23.580743][ T827] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.580746][ T827] do_group_exit (kernel/exit.c:1151) [ 23.580748][ T827] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 23.580749][ T827] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 23.580751][ T827] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 23.580754][ T827] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 23.580756][ T827] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 23.580759][ T827] RIP: 0033:0x7fd6248141b8 [ 23.580761][ T827] Code: Unable to access opcode bytes at 0x7fd62481418e. Code starting with the faulting instruction =========================================== [ 23.580762][ T827] RSP: 002b:00007fff7515f568 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.580765][ T827] RAX: ffffffffffffffda RBX: 00007fd624944f88 RCX: 00007fd6248141b8 [ 23.580766][ T827] RDX: 00007fd624751a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 23.580767][ T827] RBP: 00007fff7515f5c0 R08: 0000000000000000 R09: 0000000000000000 [ 23.580768][ T827] R10: 00007fff7515f400 R11: 0000000000000246 R12: 0000000000000001 [ 23.580769][ T827] R13: 0000000000000000 R14: 00007fd624943680 R15: 00007fd624944fa0 | [ 28.201977][ T1015] softirqs last disabled at (0): 0x0 | [ 28.201979][ T1015] Preemption disabled at: | [ 28.201980][ T1015] 0x0 | [ 28.201988][ T1015] Tainted: [W]=WARN [ 28.201989][ T1015] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.201990][ T1015] Call Trace: [ 28.201992][ T1015] [ 28.201993][ T1015] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.201998][ T1015] __might_resched.cold (kernel/sched/core.c:9234) [ 28.202002][ T1015] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.202005][ T1015] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 28.202009][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202012][ T1015] __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)) [ 28.202015][ T1015] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 28.202018][ T1015] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.202023][ T1015] ? 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) [ 28.202024][ T1015] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.202027][ T1015] put_chars (drivers/char/virtio_console.c:1176) [ 28.202029][ T1015] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.202032][ T1015] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 28.202035][ T1015] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.202039][ T1015] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.202041][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202043][ T1015] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.202045][ T1015] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.202047][ T1015] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.202049][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202050][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202052][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202053][ T1015] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.202055][ T1015] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 28.202057][ T1015] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.202059][ T1015] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.202062][ T1015] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.202063][ T1015] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.202065][ T1015] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.202066][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202068][ T1015] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 28.202069][ T1015] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 28.202070][ T1015] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 28.202072][ T1015] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.202074][ T1015] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.202076][ T1015] vprintk_emit (kernel/printk/printk.c:2479) [ 28.202078][ T1015] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.202080][ T1015] _printk (kernel/printk/printk.c:2504) [ 28.202083][ T1015] ? snapshot_read.cold (user.c:?) [ 28.202085][ T1015] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 28.202090][ T1015] ? 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) [ 28.202092][ T1015] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 28.202094][ T1015] ? 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) [ 28.202096][ T1015] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 28.202099][ T1015] ? exit_notify (kernel/exit.c:780) [ 28.202102][ T1015] ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3)) [ 28.202105][ T1015] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.202107][ T1015] do_group_exit (kernel/exit.c:1151) [ 28.202109][ T1015] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 28.202111][ T1015] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 28.202113][ T1015] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.202116][ T1015] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.202119][ T1015] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.202122][ T1015] RIP: 0033:0x7f6facb401b8 [ 28.202124][ T1015] Code: Unable to access opcode bytes at 0x7f6facb4018e. Code starting with the faulting instruction =========================================== [ 28.202125][ T1015] RSP: 002b:00007ffdec4bdcd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 28.202129][ T1015] RAX: ffffffffffffffda RBX: 00007f6facc70f88 RCX: 00007f6facb401b8 [ 28.202130][ T1015] RDX: 00007f6faca7da48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 28.202131][ T1015] RBP: 00007ffdec4bdd30 R08: 0000000000000000 R09: 0000000000000000 [ 28.202132][ T1015] R10: 00007ffdec4bdb70 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record