====================================== | [ 21.425211][ T532] softirqs last disabled at (12973): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 21.425214][ T532] Preemption disabled at: | [ 21.425215][ T532] 0x0 | [ 21.425225][ T532] Tainted: [W]=WARN [ 21.425226][ T532] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.425228][ T532] Call Trace: [ 21.425229][ T532] [ 21.425231][ T532] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.425236][ T532] __might_resched.cold (kernel/sched/core.c:9234) [ 21.425241][ T532] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.425244][ T532] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.425249][ T532] __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)) [ 21.425252][ T532] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.425258][ T532] ? 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) [ 21.425261][ T532] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.425264][ T532] put_chars (drivers/char/virtio_console.c:1176) [ 21.425267][ T532] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.425274][ T532] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.425281][ T532] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.425283][ T532] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.425288][ T532] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.425291][ T532] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.425292][ T532] ? 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)) [ 21.425295][ T532] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.425299][ T532] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.425303][ T532] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.425306][ T532] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.425307][ T532] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.425313][ T532] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.425315][ T532] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.425316][ T532] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.425318][ T532] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 21.425323][ T532] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.425325][ T532] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.425328][ T532] vprintk_emit (kernel/printk/printk.c:2479) [ 21.425331][ T532] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.425334][ T532] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.425338][ T532] _printk (kernel/printk/printk.c:2504) [ 21.425341][ T532] ? snapshot_read.cold (user.c:?) [ 21.425344][ T532] ? 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) [ 21.425347][ T532] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 21.425351][ T532] ? 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) [ 21.425354][ T532] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 21.425358][ T532] ? exit_notify (kernel/exit.c:780) [ 21.425359][ T532] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.425362][ T532] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.425366][ T532] do_group_exit (kernel/exit.c:1151) [ 21.425369][ T532] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 21.425371][ T532] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 21.425374][ T532] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 21.425377][ T532] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 21.425381][ T532] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 21.425383][ T532] RIP: 0033:0x7f7fbb5481b8 [ 21.425385][ T532] Code: Unable to access opcode bytes at 0x7f7fbb54818e. Code starting with the faulting instruction =========================================== [ 21.425386][ T532] RSP: 002b:00007fff2e2a5b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 21.425388][ T532] RAX: ffffffffffffffda RBX: 00007f7fbb678f88 RCX: 00007f7fbb5481b8 [ 21.425390][ T532] RDX: 00007f7fbb3a5b48 RSI: fffffffffffffec8 RDI: 0000000000000000 [ 21.425391][ T532] RBP: 00007fff2e2a5bc0 R08: 00000000ffffffff R09: 0000000000001010 [ 21.425391][ T532] R10: 00007fff2e2a59c0 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print