====================================== | [ 10.875054][ T201] softirqs last disabled at (19153): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.875057][ T201] Preemption disabled at: | [ 10.875058][ T201] 0x0 | [ 10.875068][ T201] Tainted: [W]=WARN [ 10.875069][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.875071][ T201] Call Trace: [ 10.875073][ T201] [ 10.875074][ T201] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.875081][ T201] __might_resched.cold (kernel/sched/core.c:9234) [ 10.875086][ T201] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.875090][ T201] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.875095][ T201] __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)) [ 10.875097][ T201] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.875104][ T201] ? 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) [ 10.875106][ T201] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.875110][ T201] put_chars (drivers/char/virtio_console.c:1176) [ 10.875113][ T201] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.875114][ T201] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.875118][ T201] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.875124][ T201] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.875132][ T201] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.875135][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.875137][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.875141][ T201] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.875145][ T201] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.875147][ T201] ? 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)) [ 10.875151][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.875152][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.875156][ T201] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.875161][ T201] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.875163][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.875168][ T201] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.875171][ T201] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.875174][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.875175][ T201] ? 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) [ 10.875180][ T201] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.875181][ T201] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.875185][ T201] vprintk_emit (kernel/printk/printk.c:2479) [ 10.875188][ T201] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.875191][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.875195][ T201] _printk (kernel/printk/printk.c:2504) [ 10.875199][ T201] ? snapshot_read.cold (user.c:?) [ 10.875201][ T201] ? 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) [ 10.875204][ T201] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.875208][ T201] ? 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) [ 10.875211][ T201] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.875215][ T201] ? exit_notify (kernel/exit.c:780) [ 10.875217][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.875219][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.875223][ T201] do_group_exit (kernel/exit.c:1151) [ 10.875226][ T201] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.875228][ T201] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.875231][ T201] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.875235][ T201] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.875237][ T201] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.875240][ T201] RIP: 0033:0x7fbef3dee1b8 [ 10.875242][ T201] Code: Unable to access opcode bytes at 0x7fbef3dee18e. Code starting with the faulting instruction =========================================== [ 10.875243][ T201] RSP: 002b:00007fff43db66f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.875246][ T201] RAX: ffffffffffffffda RBX: 00007fbef3f1ef88 RCX: 00007fbef3dee1b8 [ 10.875247][ T201] RDX: 00007fbef3b38fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.875248][ T201] RBP: 00007fff43db6750 R08: 0000000000000000 R09: 0000000000000050 [ 10.875249][ T201] R10: 00007fff43db6510 R11: 0000000000000246 R12: 0000000000000001 [ 10.875250][ T201] R13: 0000000000000000 R14: 00007fbef3f1d680 R15: 00007fbef3f1efa0 | [ 33.679361][ T845] softirqs last disabled at (25204): sk_common_release (./include/net/sock.h:2138 net/core/sock.c:4066) | [ 33.679364][ T845] Preemption disabled at: | [ 33.679364][ T845] 0x0 | [ 33.679375][ T845] Tainted: [W]=WARN [ 33.679376][ T845] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.679378][ T845] Call Trace: [ 33.679380][ T845] [ 33.679381][ T845] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.679388][ T845] __might_resched.cold (kernel/sched/core.c:9234) [ 33.679393][ T845] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.679397][ T845] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.679402][ T845] __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)) [ 33.679404][ T845] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.679410][ T845] ? 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) [ 33.679413][ T845] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.679416][ T845] put_chars (drivers/char/virtio_console.c:1176) [ 33.679419][ T845] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.679420][ T845] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.679424][ T845] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.679430][ T845] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.679437][ T845] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.679440][ T845] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.679442][ T845] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.679447][ T845] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.679451][ T845] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.679453][ T845] ? 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)) [ 33.679456][ T845] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.679458][ T845] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.679462][ T845] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.679467][ T845] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.679469][ T845] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.679474][ T845] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.679477][ T845] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.679479][ T845] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.679481][ T845] ? 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) [ 33.679485][ T845] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.679487][ T845] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.679490][ T845] vprintk_emit (kernel/printk/printk.c:2479) [ 33.679493][ T845] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.679496][ T845] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.679500][ T845] _printk (kernel/printk/printk.c:2504) [ 33.679504][ T845] ? snapshot_read.cold (user.c:?) [ 33.679507][ T845] ? 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) [ 33.679510][ T845] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 33.679514][ T845] ? 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) [ 33.679517][ T845] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 33.679520][ T845] ? exit_notify (kernel/exit.c:780) [ 33.679522][ T845] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 33.679524][ T845] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.679528][ T845] do_group_exit (kernel/exit.c:1151) [ 33.679531][ T845] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 33.679533][ T845] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 33.679535][ T845] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 33.679539][ T845] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 33.679542][ T845] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 33.679544][ T845] RIP: 0033:0x7f4dec1e71b8 [ 33.679547][ T845] Code: Unable to access opcode bytes at 0x7f4dec1e718e. Code starting with the faulting instruction =========================================== [ 33.679548][ T845] RSP: 002b:00007fff6d97c198 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.679550][ T845] RAX: ffffffffffffffda RBX: 00007f4dec317f88 RCX: 00007f4dec1e71b8 [ 33.679551][ T845] RDX: 00007f4dec124a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 33.679552][ T845] RBP: 00007fff6d97c1f0 R08: 0000000000000000 R09: 0000000000000020 [ 33.679553][ T845] R10: 00007fff6d97c030 R11: 0000000000000246 R12: 0000000000000001 Finger prints: sk_common_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print