====================================== | [ 9.853097][ T177] softirqs last disabled at (33833): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.853099][ T177] Preemption disabled at: | [ 9.853100][ T177] 0x0 | [ 9.853111][ T177] Tainted: [W]=WARN [ 9.853111][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.853113][ T177] Call Trace: [ 9.853115][ T177] [ 9.853116][ T177] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.853122][ T177] __might_resched.cold (kernel/sched/core.c:9234) [ 9.853127][ T177] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.853131][ T177] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.853136][ T177] __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)) [ 9.853138][ T177] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.853144][ T177] ? 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) [ 9.853147][ T177] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.853150][ T177] put_chars (drivers/char/virtio_console.c:1176) [ 9.853153][ T177] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.853154][ T177] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.853159][ T177] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.853164][ T177] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.853170][ T177] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.853173][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.853175][ T177] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.853179][ T177] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.853183][ T177] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.853185][ T177] ? 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)) [ 9.853188][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.853190][ T177] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.853194][ T177] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.853198][ T177] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.853199][ T177] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.853204][ T177] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.853207][ T177] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.853209][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.853211][ T177] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.853215][ T177] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.853217][ T177] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.853220][ T177] vprintk_emit (kernel/printk/printk.c:2479) [ 9.853224][ T177] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.853227][ T177] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.853230][ T177] _printk (kernel/printk/printk.c:2504) [ 9.853234][ T177] ? snapshot_read.cold (user.c:?) [ 9.853237][ T177] ? 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) [ 9.853239][ T177] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.853243][ T177] ? 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) [ 9.853245][ T177] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.853249][ T177] ? exit_notify (kernel/exit.c:780) [ 9.853250][ T177] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.853253][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.853257][ T177] do_group_exit (kernel/exit.c:1151) [ 9.853260][ T177] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.853261][ T177] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.853264][ T177] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.853268][ T177] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.853270][ T177] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.853273][ T177] RIP: 0033:0x7f2c57da61b8 [ 9.853275][ T177] Code: Unable to access opcode bytes at 0x7f2c57da618e. Code starting with the faulting instruction =========================================== [ 9.853276][ T177] RSP: 002b:00007ffeda6d19f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.853279][ T177] RAX: ffffffffffffffda RBX: 00007f2c57ed6f88 RCX: 00007f2c57da61b8 [ 9.853280][ T177] RDX: 00007f2c57af0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.853281][ T177] RBP: 00007ffeda6d1a50 R08: 0000000000000000 R09: 0000000000000050 [ 9.853282][ T177] R10: 00007ffeda6d1810 R11: 0000000000000246 R12: 0000000000000001 [ 9.853282][ T177] R13: 0000000000000000 R14: 00007f2c57ed5680 R15: 00007f2c57ed6fa0 | [ 18.080487][ T248] softirqs last disabled at (1437971): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 18.080489][ T248] Preemption disabled at: | [ 18.080489][ T248] 0x0 | [ 18.080500][ T248] Tainted: [W]=WARN [ 18.080501][ T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.080502][ T248] Call Trace: [ 18.080504][ T248] [ 18.080506][ T248] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.080512][ T248] __might_resched.cold (kernel/sched/core.c:9234) [ 18.080517][ T248] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.080521][ T248] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.080526][ T248] __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)) [ 18.080528][ T248] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.080534][ T248] ? 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) [ 18.080537][ T248] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.080540][ T248] put_chars (drivers/char/virtio_console.c:1176) [ 18.080542][ T248] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 18.080545][ T248] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.080548][ T248] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.080552][ T248] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.080554][ T248] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.080558][ T248] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.080561][ T248] ? mark_usage (kernel/locking/lockdep.c:4690) [ 18.080563][ T248] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.080565][ T248] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.080568][ T248] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.080571][ T248] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 18.080574][ T248] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.080576][ T248] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.080580][ T248] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.080584][ T248] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.080586][ T248] ? 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)) [ 18.080589][ T248] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.080591][ T248] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.080595][ T248] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.080599][ T248] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.080601][ T248] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.080605][ T248] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.080608][ T248] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.080610][ T248] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.080612][ T248] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 18.080616][ T248] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.080617][ T248] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.080621][ T248] vprintk_emit (kernel/printk/printk.c:2479) [ 18.080624][ T248] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.080628][ T248] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.080631][ T248] _printk (kernel/printk/printk.c:2504) [ 18.080635][ T248] ? snapshot_read.cold (user.c:?) [ 18.080638][ T248] ? 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) [ 18.080640][ T248] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 18.080644][ T248] ? 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) [ 18.080646][ T248] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 18.080650][ T248] ? exit_notify (kernel/exit.c:780) [ 18.080655][ T248] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 18.080657][ T248] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 18.080659][ T248] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.080663][ T248] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.080666][ T248] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.080668][ T248] RIP: 0033:0x7f731bb7ac49 [ 18.080670][ T248] Code: Unable to access opcode bytes at 0x7f731bb7ac1f. Code starting with the faulting instruction =========================================== [ 18.080672][ T248] RSP: 002b:00007f731b339e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 18.080674][ T248] RAX: ffffffffffffffda RBX: 00007f731b33a6c0 RCX: 00007f731bb7ac49 [ 18.080675][ T248] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 18.080676][ T248] RBP: 00007f731b339f70 R08: 0000000000000001 R09: 00007f731b33a6c0 [ 18.080677][ T248] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f731ab3a000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print