====================================== | [ 10.463926][ T177] softirqs last disabled at (21394): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 10.463928][ T177] Preemption disabled at: | [ 10.463929][ T177] 0x0 | [ 10.463939][ T177] Tainted: [W]=WARN [ 10.463940][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.463942][ T177] Call Trace: [ 10.463944][ T177] [ 10.463945][ T177] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.463951][ T177] __might_resched.cold (kernel/sched/core.c:9234) [ 10.463956][ T177] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.463959][ 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) [ 10.463964][ 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)) [ 10.463967][ T177] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.463973][ 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) [ 10.463976][ T177] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.463979][ T177] put_chars (drivers/char/virtio_console.c:1176) [ 10.463982][ T177] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.463988][ T177] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.463995][ T177] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.463997][ T177] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.464002][ T177] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.464005][ T177] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.464006][ 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)) [ 10.464009][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.464012][ T177] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.464019][ T177] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.464022][ T177] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.464024][ T177] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.464029][ T177] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.464031][ T177] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.464032][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.464034][ T177] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.464038][ T177] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.464040][ T177] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.464043][ T177] vprintk_emit (kernel/printk/printk.c:2479) [ 10.464046][ T177] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.464049][ T177] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.464053][ T177] _printk (kernel/printk/printk.c:2504) [ 10.464056][ T177] ? snapshot_read.cold (user.c:?) [ 10.464059][ 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) [ 10.464062][ T177] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.464066][ 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) [ 10.464068][ T177] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.464072][ T177] ? exit_notify (kernel/exit.c:780) [ 10.464074][ T177] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.464076][ T177] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.464080][ T177] do_group_exit (kernel/exit.c:1151) [ 10.464083][ T177] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.464085][ T177] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.464088][ T177] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.464091][ T177] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.464094][ T177] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.464097][ T177] RIP: 0033:0x7f5a40f241b8 [ 10.464099][ T177] Code: Unable to access opcode bytes at 0x7f5a40f2418e. Code starting with the faulting instruction =========================================== [ 10.464100][ T177] RSP: 002b:00007ffcd307eb78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.464103][ T177] RAX: ffffffffffffffda RBX: 00007f5a41054f88 RCX: 00007f5a40f241b8 [ 10.464104][ T177] RDX: 00007f5a40c6efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.464105][ T177] RBP: 00007ffcd307ebd0 R08: 0000000000000000 R09: 0000000000000050 [ 10.464106][ T177] R10: 00007ffcd307e990 R11: 0000000000000246 R12: 0000000000000001 [ 10.464107][ T177] R13: 0000000000000000 R14: 00007f5a41053680 R15: 00007f5a41054fa0 | [ 11.565315][ T223] softirqs last disabled at (27783): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.565318][ T223] Preemption disabled at: | [ 11.565318][ T223] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.565327][ T223] Tainted: [W]=WARN [ 11.565328][ T223] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.565330][ T223] Call Trace: [ 11.565331][ T223] [ 11.565333][ T223] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.565338][ T223] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.565340][ T223] __might_resched.cold (kernel/sched/core.c:9234) [ 11.565344][ T223] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.565347][ T223] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.565352][ T223] __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)) [ 11.565355][ T223] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.565361][ T223] ? 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) [ 11.565364][ T223] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.565367][ T223] put_chars (drivers/char/virtio_console.c:1176) [ 11.565370][ T223] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.565374][ T223] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.565380][ T223] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.565383][ T223] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.565388][ T223] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.565391][ T223] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.565398][ T223] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.565401][ T223] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.565405][ T223] ? 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)) [ 11.565409][ T223] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.565413][ T223] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.565415][ T223] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.565420][ T223] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.565423][ T223] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.565424][ T223] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.565426][ T223] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.565430][ T223] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.565433][ T223] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.565436][ T223] vprintk_emit (kernel/printk/printk.c:2479) [ 11.565439][ T223] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.565441][ T223] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.565446][ T223] _printk (kernel/printk/printk.c:2504) [ 11.565449][ T223] ? snapshot_read.cold (user.c:?) [ 11.565451][ T223] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 11.565457][ T223] ? idr_get_free (??:?) [ 11.565458][ T223] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.565464][ T223] ipv4_local_port_range.cold (net/ipv4/sysctl_net_ipv4.c:64 (discriminator 3) net/ipv4/sysctl_net_ipv4.c:97 (discriminator 3)) [ 11.565468][ T223] ? proc_tcp_ehash_entries (net/ipv4/sysctl_net_ipv4.c:416) [ 11.565474][ T223] ? __kvmalloc_node_noprof (mm/slub.c:5415 mm/slub.c:7005) [ 11.565477][ T223] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:583 (discriminator 7)) [ 11.565482][ T223] proc_sys_call_handler (fs/proc/proc_sysctl.c:600) [ 11.565485][ T223] ? proc_sys_lookup (fs/proc/proc_sysctl.c:543 (discriminator 3)) [ 11.565487][ T223] ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6)) [ 11.565489][ T223] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.565492][ T223] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.565495][ T223] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.565497][ T223] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:591) [ 11.565500][ T223] new_sync_write (fs/read_write.c:595) [ 11.565503][ T223] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.565506][ T223] ? new_sync_read (./include/linux/ioprio.h:41) [ 11.565510][ T223] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.565512][ T223] ? ksys_write (fs/read_write.c:739) [ 11.565518][ T223] vfs_write (fs/read_write.c:687) [ 11.565522][ T223] ksys_write (fs/read_write.c:739) [ 11.565524][ T223] ? __ia32_sys_read (fs/read_write.c:723) [ 11.565526][ T223] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.565528][ T223] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.565531][ T223] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.565533][ T223] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.565536][ T223] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.565539][ T223] RIP: 0033:0x7f6abb43354e [ 11.565543][ T223] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 11.565544][ T223] RSP: 002b:00007ffc63db3fe0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 11.565547][ T223] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f6abb43354e [ 11.565548][ T223] RDX: 000000000000000c RSI: 0000564e9be334b0 RDI: 0000000000000005 [ 11.565549][ T223] RBP: 00007ffc63db3ff0 R08: 0000000000000000 R09: 0000000000000000 [ 11.565550][ T223] R10: 0000000000000000 R11: 0000000000000202 R12: 0000564e9be355e0 Finger prints: __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print