====================================== | [ 33.528969][ T317] softirqs last disabled at (27575): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 33.528972][ T317] Preemption disabled at: | [ 33.528972][ T317] 0x0 | [ 33.528982][ T317] Tainted: [W]=WARN [ 33.528983][ T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.528985][ T317] Call Trace: [ 33.528987][ T317] [ 33.528988][ T317] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.528994][ T317] __might_resched.cold (kernel/sched/core.c:9234) [ 33.528999][ T317] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.529003][ T317] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.529008][ T317] __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)) [ 33.529010][ T317] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.529015][ T317] ? 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) [ 33.529018][ T317] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.529021][ T317] put_chars (drivers/char/virtio_console.c:1176) [ 33.529024][ T317] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.529025][ T317] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 33.529028][ T317] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.529031][ T317] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.529035][ T317] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.529038][ T317] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.529039][ T317] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.529044][ T317] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.529047][ T317] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.529050][ T317] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.529053][ T317] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.529057][ T317] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.529061][ T317] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.529063][ T317] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.529070][ T317] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.529074][ T317] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.529075][ T317] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.529080][ T317] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.529083][ T317] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.529084][ T317] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.529086][ T317] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 33.529090][ T317] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.529091][ T317] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.529094][ T317] vprintk_emit (kernel/printk/printk.c:2479) [ 33.529098][ T317] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.529101][ T317] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.529104][ T317] _printk (kernel/printk/printk.c:2504) [ 33.529108][ T317] ? snapshot_read.cold (user.c:?) [ 33.529111][ T317] ? 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) [ 33.529113][ T317] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 33.529116][ T317] ? 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) [ 33.529119][ T317] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 33.529123][ T317] ? exit_notify (kernel/exit.c:780) [ 33.529124][ T317] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 33.529127][ T317] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.529131][ T317] do_group_exit (kernel/exit.c:1151) [ 33.529134][ T317] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 33.529136][ T317] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 33.529138][ T317] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 33.529142][ T317] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 33.529145][ T317] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 33.529147][ T317] RIP: 0033:0x7fdd38b4a1b8 [ 33.529150][ T317] Code: Unable to access opcode bytes at 0x7fdd38b4a18e. Code starting with the faulting instruction =========================================== [ 33.529151][ T317] RSP: 002b:00007ffdfa3355b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.529153][ T317] RAX: ffffffffffffffda RBX: 00007fdd38c7af88 RCX: 00007fdd38b4a1b8 [ 33.529154][ T317] RDX: 00007fdd38894fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 33.529155][ T317] RBP: 00007ffdfa335610 R08: 0000000000000000 R09: 0000000000000050 [ 33.529156][ T317] R10: 00007ffdfa3353d0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print