====================================== | [ 30.004282][ T466] softirqs last disabled at (68076): unix_release_sock (./include/net/sock.h:2138 net/unix/af_unix.c:678) | [ 30.004285][ T466] Preemption disabled at: | [ 30.004286][ T466] 0x0 | [ 30.004296][ T466] Tainted: [W]=WARN [ 30.004297][ T466] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 30.004299][ T466] Call Trace: [ 30.004301][ T466] [ 30.004302][ T466] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.004308][ T466] __might_resched.cold (kernel/sched/core.c:9234) [ 30.004313][ T466] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.004317][ T466] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.004322][ T466] __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)) [ 30.004324][ T466] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.004330][ T466] ? 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) [ 30.004333][ T466] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.004336][ T466] put_chars (drivers/char/virtio_console.c:1176) [ 30.004340][ T466] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.004341][ T466] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 30.004345][ T466] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.004347][ T466] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.004352][ T466] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.004355][ T466] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.004357][ T466] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.004361][ T466] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.004364][ T466] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.004367][ T466] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.004371][ T466] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.004374][ T466] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.004379][ T466] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.004381][ T466] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.004384][ T466] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.004388][ T466] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.004390][ T466] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.004395][ T466] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.004398][ T466] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.004399][ T466] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.004401][ T466] ? 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)) [ 30.004405][ T466] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.004406][ T466] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.004410][ T466] vprintk_emit (kernel/printk/printk.c:2479) [ 30.004413][ T466] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.004417][ T466] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.004420][ T466] _printk (kernel/printk/printk.c:2504) [ 30.004423][ T466] ? snapshot_read.cold (user.c:?) [ 30.004426][ T466] ? 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) [ 30.004429][ T466] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 30.004432][ T466] ? 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) [ 30.004435][ T466] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 30.004438][ T466] ? exit_notify (kernel/exit.c:780) [ 30.004440][ T466] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.004443][ T466] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.004447][ T466] do_group_exit (kernel/exit.c:1151) [ 30.004450][ T466] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 30.004452][ T466] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 30.004455][ T466] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.004458][ T466] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.004462][ T466] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.004464][ T466] RIP: 0033:0x7f32c5ffe1b8 [ 30.004466][ T466] Code: Unable to access opcode bytes at 0x7f32c5ffe18e. Code starting with the faulting instruction =========================================== [ 30.004467][ T466] RSP: 002b:00007fff1ca667b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.004470][ T466] RAX: ffffffffffffffda RBX: 00007f32c612ef88 RCX: 00007f32c5ffe1b8 [ 30.004471][ T466] RDX: 00007f32c5ee3e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 30.004472][ T466] RBP: 00007fff1ca66810 R08: 0000000000000000 R09: 0000000000004010 [ 30.004473][ T466] R10: 00007fff1ca66610 R11: 0000000000000246 R12: 0000000000000003 [ 30.004474][ T466] R13: 0000000000000000 R14: 00007f32c612d680 R15: 00007f32c612efa0 | [ 48.729331][ T351] softirqs last disabled at (3493043): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 48.729333][ T351] Preemption disabled at: | [ 48.729334][ T351] 0x0 | [ 48.729346][ T351] Tainted: [W]=WARN [ 48.729346][ T351] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 48.729349][ T351] Call Trace: [ 48.729350][ T351] [ 48.729352][ T351] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 48.729358][ T351] __might_resched.cold (kernel/sched/core.c:9234) [ 48.729362][ T351] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 48.729366][ T351] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 48.729371][ T351] __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)) [ 48.729374][ T351] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.729380][ T351] ? 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) [ 48.729383][ T351] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.729386][ T351] put_chars (drivers/char/virtio_console.c:1176) [ 48.729389][ T351] ? __send_to_port (drivers/char/virtio_console.c:654) [ 48.729391][ T351] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 48.729394][ T351] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 48.729397][ T351] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 48.729401][ T351] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 48.729405][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.729406][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.729410][ T351] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 48.729414][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.729416][ T351] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.729420][ T351] console_emit_next_record (kernel/printk/printk.c:3183) [ 48.729424][ T351] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 48.729428][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.729430][ T351] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.729434][ T351] console_flush_one_record (kernel/printk/printk.c:3268) [ 48.729438][ T351] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 48.729440][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.729445][ T351] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 48.729447][ T351] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 48.729449][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.729451][ T351] ? 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)) [ 48.729455][ T351] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 48.729456][ T351] ? vprintk_emit (kernel/printk/printk.c:2478) [ 48.729459][ T351] vprintk_emit (kernel/printk/printk.c:2479) [ 48.729463][ T351] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 48.729465][ T351] ? 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) [ 48.729467][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.729471][ T351] _printk (kernel/printk/printk.c:2504) [ 48.729474][ T351] ? snapshot_read.cold (user.c:?) [ 48.729477][ T351] ? 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) [ 48.729479][ T351] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 48.729483][ T351] ? 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) [ 48.729485][ T351] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 48.729489][ T351] ? exit_notify (kernel/exit.c:780) [ 48.729491][ T351] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 48.729493][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.729497][ T351] do_group_exit (kernel/exit.c:1151) [ 48.729500][ T351] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 48.729503][ T351] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 48.729505][ T351] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 48.729509][ T351] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 48.729512][ T351] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 48.729515][ T351] RIP: 0033:0x7f91ca7d81b8 [ 48.729517][ T351] Code: Unable to access opcode bytes at 0x7f91ca7d818e. Code starting with the faulting instruction =========================================== [ 48.729518][ T351] RSP: 002b:00007ffecb76c1b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 48.729520][ T351] RAX: ffffffffffffffda RBX: 00007f91ca908f88 RCX: 00007f91ca7d81b8 [ 48.729522][ T351] RDX: 00007f91ca600708 RSI: ffffffffffffff90 RDI: 0000000000000001 [ 48.729523][ T351] RBP: 00007ffecb76c210 R08: 0000000000000000 R09: 0000000000000001 [ 48.729524][ T351] R10: 00007f91cacc23f5 R11: 0000000000000246 R12: 0000000000000002 Finger prints: unix_release_sock:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print