====================================== | [ 30.160655][ T826] softirqs last disabled at (165035): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 30.160658][ T826] Preemption disabled at: | [ 30.160658][ T826] 0x0 | [ 30.160668][ T826] Tainted: [W]=WARN [ 30.160669][ T826] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.160671][ T826] Call Trace: [ 30.160673][ T826] [ 30.160674][ T826] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.160680][ T826] __might_resched.cold (kernel/sched/core.c:9234) [ 30.160685][ T826] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.160688][ T826] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.160693][ T826] __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)) [ 30.160695][ T826] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.160702][ T826] ? 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) [ 30.160704][ T826] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.160708][ T826] put_chars (drivers/char/virtio_console.c:1176) [ 30.160711][ T826] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.160713][ T826] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.160717][ T826] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.160722][ T826] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.160730][ T826] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.160732][ T826] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.160734][ T826] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.160738][ T826] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.160742][ T826] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.160743][ T826] ? 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)) [ 30.160746][ T826] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.160748][ T826] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.160752][ T826] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.160756][ T826] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.160757][ T826] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.160763][ T826] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.160765][ T826] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.160767][ T826] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.160769][ T826] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 30.160772][ T826] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.160774][ T826] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.160777][ T826] vprintk_emit (kernel/printk/printk.c:2479) [ 30.160780][ T826] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.160783][ T826] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.160787][ T826] _printk (kernel/printk/printk.c:2504) [ 30.160791][ T826] ? snapshot_read.cold (user.c:?) [ 30.160793][ T826] ? 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) [ 30.160796][ T826] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 30.160799][ T826] ? 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) [ 30.160802][ T826] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 30.160805][ T826] ? exit_notify (kernel/exit.c:780) [ 30.160807][ T826] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.160809][ T826] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.160813][ T826] do_group_exit (kernel/exit.c:1151) [ 30.160816][ T826] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 30.160819][ T826] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 30.160820][ T826] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.160824][ T826] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.160827][ T826] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.160830][ T826] RIP: 0033:0x7fa8dce051b8 [ 30.160832][ T826] Code: Unable to access opcode bytes at 0x7fa8dce0518e. Code starting with the faulting instruction =========================================== [ 30.160833][ T826] RSP: 002b:00007ffe93add088 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.160836][ T826] RAX: ffffffffffffffda RBX: 00007fa8dcf35f88 RCX: 00007fa8dce051b8 [ 30.160837][ T826] RDX: 00007fa8dcd42a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 30.160838][ T826] RBP: 00007ffe93add0e0 R08: 0000000000000000 R09: 0000000000000000 [ 30.160839][ T826] R10: 00007ffe93adcf20 R11: 0000000000000246 R12: 0000000000000001 [ 30.160840][ T826] R13: 0000000000000000 R14: 00007fa8dcf34680 R15: 00007fa8dcf35fa0 | [ 73.037374][ T1587] softirqs last disabled at (327423): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 73.037381][ T1587] Preemption disabled at: | [ 73.037383][ T1587] 0x0 | [ 73.037403][ T1587] Tainted: [W]=WARN [ 73.037405][ T1587] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 73.037409][ T1587] Call Trace: [ 73.037414][ T1587] [ 73.037419][ T1587] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 73.037432][ T1587] __might_resched.cold (kernel/sched/core.c:9234) [ 73.037444][ T1587] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 73.037455][ T1587] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 73.037467][ T1587] __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)) [ 73.037477][ T1587] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 73.037493][ T1587] ? 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) [ 73.037499][ T1587] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 73.037511][ T1587] put_chars (drivers/char/virtio_console.c:1176) [ 73.037520][ T1587] ? __send_to_port (drivers/char/virtio_console.c:654) [ 73.037526][ T1587] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 73.037538][ T1587] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 73.037553][ T1587] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 73.037573][ T1587] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 73.037582][ T1587] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 73.037592][ T1587] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 73.037601][ T1587] console_emit_next_record (kernel/printk/printk.c:3183) [ 73.037614][ T1587] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 73.037620][ T1587] ? 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)) [ 73.037629][ T1587] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 73.037635][ T1587] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 73.037648][ T1587] console_flush_one_record (kernel/printk/printk.c:3268) [ 73.037660][ T1587] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 73.037667][ T1587] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 73.037679][ T1587] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 73.037689][ T1587] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 73.037694][ T1587] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 73.037702][ T1587] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 73.037712][ T1587] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 73.037718][ T1587] ? vprintk_emit (kernel/printk/printk.c:2478) [ 73.037728][ T1587] vprintk_emit (kernel/printk/printk.c:2479) [ 73.037740][ T1587] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 73.037745][ T1587] ? 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) [ 73.037753][ T1587] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 73.037764][ T1587] _printk (kernel/printk/printk.c:2504) [ 73.037776][ T1587] ? snapshot_read.cold (user.c:?) [ 73.037786][ T1587] ? 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) [ 73.037794][ T1587] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 73.037806][ T1587] ? 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) [ 73.037816][ T1587] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 73.037825][ T1587] ? exit_notify (kernel/exit.c:780) [ 73.037832][ T1587] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 73.037841][ T1587] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 73.037850][ T1587] do_group_exit (kernel/exit.c:1151) [ 73.037862][ T1587] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 73.037870][ T1587] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 73.037877][ T1587] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 73.037883][ T1587] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 73.037894][ T1587] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 73.037901][ T1587] RIP: 0033:0x7f6d8215e1b8 [ 73.037909][ T1587] Code: Unable to access opcode bytes at 0x7f6d8215e18e. Code starting with the faulting instruction =========================================== [ 73.037913][ T1587] RSP: 002b:00007fffb5cd3528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 73.037917][ T1587] RAX: ffffffffffffffda RBX: 00007f6d8228ef88 RCX: 00007f6d8215e1b8 [ 73.037919][ T1587] RDX: 00007f6d8209ba48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 73.037923][ T1587] RBP: 00007fffb5cd3580 R08: 0000000000000000 R09: 0000000000000000 [ 73.037926][ T1587] R10: 00007fffb5cd33c0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print