====================================== | [ 13.175107][ T82] softirqs last disabled at (363294): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 13.175110][ T82] Preemption disabled at: | [ 13.175111][ T82] 0x0 | [ 13.175121][ T82] Tainted: [W]=WARN [ 13.175122][ T82] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.175124][ T82] Call Trace: [ 13.175126][ T82] [ 13.175127][ T82] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.175134][ T82] __might_resched.cold (kernel/sched/core.c:9234) [ 13.175139][ T82] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.175144][ T82] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.175149][ T82] __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)) [ 13.175152][ T82] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.175159][ T82] ? 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) [ 13.175162][ T82] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.175166][ T82] put_chars (drivers/char/virtio_console.c:1176) [ 13.175169][ T82] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.175172][ T82] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 13.175175][ T82] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.175179][ T82] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.175183][ T82] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.175187][ T82] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.175189][ T82] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.175194][ T82] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.175198][ T82] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.175202][ T82] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.175206][ T82] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.175212][ T82] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.175219][ T82] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.175222][ T82] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.175227][ T82] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.175232][ T82] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.175234][ T82] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.175240][ T82] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.175243][ T82] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.175245][ T82] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.175248][ T82] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 13.175252][ T82] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.175254][ T82] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.175258][ T82] vprintk_emit (kernel/printk/printk.c:2479) [ 13.175262][ T82] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.175266][ T82] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.175270][ T82] _printk (kernel/printk/printk.c:2504) [ 13.175273][ T82] ? snapshot_read.cold (user.c:?) [ 13.175278][ T82] ? 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) [ 13.175283][ T82] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.175287][ T82] ? 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) [ 13.175290][ T82] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.175294][ T82] ? exit_notify (kernel/exit.c:780) [ 13.175296][ T82] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.175299][ T82] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.175303][ T82] do_group_exit (kernel/exit.c:1151) [ 13.175306][ T82] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.175308][ T82] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.175310][ T82] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.175314][ T82] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.175317][ T82] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.175320][ T82] RIP: 0033:0x7f18ba1271b8 [ 13.175322][ T82] Code: Unable to access opcode bytes at 0x7f18ba12718e. Code starting with the faulting instruction =========================================== [ 13.175323][ T82] RSP: 002b:00007ffd56c62e18 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.175326][ T82] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f18ba1271b8 [ 13.175327][ T82] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.175328][ T82] RBP: 00007ffd56c62fa0 R08: 000055ba0845ef48 R09: 0000000000000000 [ 13.175329][ T82] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print