====================================== | [ 11.906580][ T288] softirqs last disabled at (25539): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.906583][ T288] Preemption disabled at: | [ 11.906584][ T288] 0x0 | [ 11.906596][ T288] Tainted: [W]=WARN [ 11.906597][ T288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.906598][ T288] Call Trace: [ 11.906600][ T288] [ 11.906601][ T288] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.906608][ T288] __might_resched.cold (kernel/sched/core.c:9234) [ 11.906613][ T288] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.906617][ T288] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.906621][ T288] __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)) [ 11.906623][ T288] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.906630][ T288] ? 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) [ 11.906633][ T288] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.906636][ T288] put_chars (drivers/char/virtio_console.c:1176) [ 11.906639][ T288] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.906640][ T288] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.906643][ T288] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.906649][ T288] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.906656][ T288] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.906659][ T288] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.906661][ T288] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.906665][ T288] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.906669][ T288] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.906671][ T288] ? 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)) [ 11.906674][ T288] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.906676][ T288] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.906680][ T288] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.906684][ T288] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.906686][ T288] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.906691][ T288] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.906694][ T288] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.906696][ T288] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.906697][ T288] ? 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) [ 11.906701][ T288] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.906703][ T288] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.906706][ T288] vprintk_emit (kernel/printk/printk.c:2479) [ 11.906709][ T288] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.906712][ T288] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.906715][ T288] _printk (kernel/printk/printk.c:2504) [ 11.906719][ T288] ? snapshot_read.cold (user.c:?) [ 11.906722][ T288] ? 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) [ 11.906725][ T288] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.906729][ T288] ? 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) [ 11.906732][ T288] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.906735][ T288] ? exit_notify (kernel/exit.c:780) [ 11.906737][ T288] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.906739][ T288] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.906743][ T288] do_group_exit (kernel/exit.c:1151) [ 11.906746][ T288] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.906748][ T288] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.906750][ T288] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.906754][ T288] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.906757][ T288] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.906759][ T288] RIP: 0033:0x7fc66ab7b1b8 [ 11.906762][ T288] Code: Unable to access opcode bytes at 0x7fc66ab7b18e. Code starting with the faulting instruction =========================================== [ 11.906763][ T288] RSP: 002b:00007ffeb40b7d68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.906765][ T288] RAX: ffffffffffffffda RBX: 00007fc66acabf88 RCX: 00007fc66ab7b1b8 [ 11.906767][ T288] RDX: 00007fc66aab8a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 11.906768][ T288] RBP: 00007ffeb40b7dc0 R08: 0000000000000000 R09: 0000000000000020 [ 11.906769][ T288] R10: 00007ffeb40b7c00 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print