====================================== | [ 21.651652][ T384] softirqs last disabled at (101853): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 21.651654][ T384] Preemption disabled at: | [ 21.651655][ T384] 0x0 | [ 21.651666][ T384] Tainted: [W]=WARN [ 21.651667][ T384] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 21.651669][ T384] Call Trace: [ 21.651670][ T384] [ 21.651672][ T384] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.651678][ T384] __might_resched.cold (kernel/sched/core.c:9234) [ 21.651682][ T384] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.651686][ T384] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.651691][ T384] __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)) [ 21.651693][ T384] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.651700][ T384] ? 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) [ 21.651702][ T384] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.651706][ T384] put_chars (drivers/char/virtio_console.c:1176) [ 21.651708][ T384] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.651710][ T384] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 21.651714][ T384] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.651716][ T384] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.651720][ T384] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.651724][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.651725][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.651729][ T384] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.651733][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.651736][ T384] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.651739][ T384] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.651743][ T384] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.651747][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.651749][ T384] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.651753][ T384] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.651757][ T384] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.651758][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.651763][ T384] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.651766][ T384] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.651767][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.651770][ T384] ? 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)) [ 21.651773][ T384] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.651774][ T384] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.651778][ T384] vprintk_emit (kernel/printk/printk.c:2479) [ 21.651781][ T384] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.651784][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.651788][ T384] _printk (kernel/printk/printk.c:2504) [ 21.651791][ T384] ? snapshot_read.cold (user.c:?) [ 21.651794][ T384] ? 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) [ 21.651796][ T384] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 21.651800][ T384] ? 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) [ 21.651802][ T384] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 21.651806][ T384] ? exit_notify (kernel/exit.c:780) [ 21.651808][ T384] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.651810][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.651814][ T384] do_group_exit (kernel/exit.c:1151) [ 21.651817][ T384] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 21.651820][ T384] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 21.651822][ T384] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 21.651826][ T384] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 21.651829][ T384] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 21.651831][ T384] RIP: 0033:0x7f0bb1f721b8 [ 21.651833][ T384] Code: Unable to access opcode bytes at 0x7f0bb1f7218e. Code starting with the faulting instruction =========================================== [ 21.651834][ T384] RSP: 002b:00007ffc59bb9258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 21.651837][ T384] RAX: ffffffffffffffda RBX: 00007f0bb20a2f88 RCX: 00007f0bb1f721b8 [ 21.651838][ T384] RDX: 00007f0bb1e57e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 21.651839][ T384] RBP: 00007ffc59bb92b0 R08: 0000000000000000 R09: 0000000000004010 [ 21.651840][ T384] R10: 00007ffc59bb90b0 R11: 0000000000000246 R12: 0000000000000003 [ 21.651841][ T384] R13: 0000000000000000 R14: 00007f0bb20a1680 R15: 00007f0bb20a2fa0 | [ 47.928990][ T350] softirqs last disabled at (3594485): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 47.928992][ T350] Preemption disabled at: | [ 47.928993][ T350] 0x0 | [ 47.929003][ T350] Tainted: [W]=WARN [ 47.929004][ T350] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 47.929006][ T350] Call Trace: [ 47.929008][ T350] [ 47.929009][ T350] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 47.929015][ T350] __might_resched.cold (kernel/sched/core.c:9234) [ 47.929020][ T350] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 47.929024][ T350] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 47.929029][ T350] __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)) [ 47.929031][ T350] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 47.929038][ T350] ? 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) [ 47.929040][ T350] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 47.929044][ T350] put_chars (drivers/char/virtio_console.c:1176) [ 47.929047][ T350] ? __send_to_port (drivers/char/virtio_console.c:654) [ 47.929049][ T350] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 47.929052][ T350] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 47.929055][ T350] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 47.929059][ T350] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 47.929062][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.929064][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.929068][ T350] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 47.929072][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.929075][ T350] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 47.929078][ T350] console_emit_next_record (kernel/printk/printk.c:3183) [ 47.929082][ T350] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 47.929086][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.929088][ T350] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 47.929092][ T350] console_flush_one_record (kernel/printk/printk.c:3268) [ 47.929096][ T350] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 47.929098][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.929103][ T350] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 47.929105][ T350] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 47.929107][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.929109][ T350] ? 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)) [ 47.929113][ T350] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 47.929114][ T350] ? vprintk_emit (kernel/printk/printk.c:2478) [ 47.929120][ T350] vprintk_emit (kernel/printk/printk.c:2479) [ 47.929123][ T350] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 47.929127][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.929130][ T350] _printk (kernel/printk/printk.c:2504) [ 47.929134][ T350] ? snapshot_read.cold (user.c:?) [ 47.929136][ T350] ? 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) [ 47.929139][ T350] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 47.929142][ T350] ? 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) [ 47.929145][ T350] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 47.929148][ T350] ? exit_notify (kernel/exit.c:780) [ 47.929150][ T350] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 47.929152][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.929156][ T350] do_group_exit (kernel/exit.c:1151) [ 47.929160][ T350] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 47.929162][ T350] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 47.929164][ T350] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 47.929168][ T350] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 47.929172][ T350] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 47.929174][ T350] RIP: 0033:0x7fe826a5a1b8 [ 47.929176][ T350] Code: Unable to access opcode bytes at 0x7fe826a5a18e. Code starting with the faulting instruction =========================================== [ 47.929177][ T350] RSP: 002b:00007fff9714e3f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 47.929180][ T350] RAX: ffffffffffffffda RBX: 00007fe826b8af88 RCX: 00007fe826a5a1b8 [ 47.929181][ T350] RDX: 00007fe826882708 RSI: ffffffffffffff90 RDI: 0000000000000001 [ 47.929182][ T350] RBP: 00007fff9714e450 R08: 0000000000000000 R09: 0000000000000001 [ 47.929183][ T350] R10: 00007fe826f443f5 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print