====================================== | [ 28.888982][ T263] ip (263) used greatest stack depth: 23552 bytes left | [ 29.043358][ T264] eth1: renamed from r1h2 | [ 33.306733][ C0] BUG: spinlock bad magic on CPU#0, ip/292 | [ 33.306989][ C0] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: ip/292, .owner_cpu: 0 [ 33.307481][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.307795][ C0] Call Trace: [ 33.307904][ C0] [ 33.307979][ C0] dump_stack_lvl (lib/dump_stack.c:122) [ 33.308131][ C0] do_raw_spin_unlock (kernel/locking/spinlock_debug.c:100 kernel/locking/spinlock_debug.c:141) [ 33.308275][ C0] _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 33.308419][ C0] net_tx_action (./include/net/sch_generic.h:226 ./include/net/sch_generic.h:217 ./include/net/pkt_sched.h:128 ./include/net/pkt_sched.h:124 net/core/dev.c:5323) [ 33.308565][ C0] handle_softirqs (kernel/softirq.c:554) [ 33.308714][ C0] ? dev_deactivate_many (./include/linux/bottom_half.h:33 ./include/linux/netdevice.h:4448 net/sched/sch_generic.c:571 net/sched/sch_generic.c:1363) [ 33.308864][ C0] do_softirq (kernel/softirq.c:455 kernel/softirq.c:442) [ 33.308973][ C0] [ 33.309047][ C0] [ 33.309117][ C0] __local_bh_enable_ip (kernel/softirq.c:382) [ 33.309258][ C0] dev_deactivate_many (net/sched/sch_generic.c:1356) [ 33.309404][ C0] __dev_close_many (net/core/dev.c:1547) [ 33.309551][ C0] ? __pfx___dev_close_many (net/core/dev.c:1522) [ 33.309696][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4273) [ 33.309839][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.310018][ C0] __dev_change_flags (./include/linux/list.h:111 ./include/linux/list.h:215 ./include/linux/list.h:229 net/core/dev.c:1571 net/core/dev.c:8836) [ 33.310160][ C0] ? __pfx___dev_change_flags (net/core/dev.c:8802) [ 33.310300][ C0] ? __dev_change_flags (net/core/dev.c:8833) [ 33.310439][ C0] dev_change_flags (net/core/dev.c:8910) [ 33.310577][ C0] cycle_netdev (drivers/net/vrf.c:1071) [ 33.310685][ C0] vrf_add_slave (drivers/net/vrf.c:1102 drivers/net/vrf.c:1121) [ 33.310826][ C0] do_setlink (net/core/rtnetlink.c:2907) [ 33.310965][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.311110][ C0] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.311249][ C0] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.311387][ C0] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.311529][ C0] ? __kernel_text_address (kernel/extable.c:79) [ 33.311670][ C0] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.311812][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.311986][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.312133][ C0] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.312276][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.312416][ C0] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.312558][ C0] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.312667][ C0] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.312809][ C0] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.312952][ C0] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.313095][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 33.313239][ C0] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.313383][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.313555][ C0] ? __create_object (mm/kmemleak.c:751) [ 33.313695][ C0] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.313842][ C0] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.313947][ C0] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.314086][ C0] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.314229][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 33.314367][ C0] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.314474][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.314617][ C0] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.314758][ C0] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.314897][ C0] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.315040][ C0] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.315179][ C0] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 33.315320][ C0] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.315459][ C0] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.315600][ C0] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.315743][ C0] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.315883][ C0] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.316022][ C0] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.316163][ C0] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.316309][ C0] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.316451][ C0] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.316595][ C0] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.316771][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.316919][ C0] ___sys_sendmsg (net/socket.c:2653) [ 33.317059][ C0] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.317199][ C0] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.317338][ C0] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.317478][ C0] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.317651][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.317791][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.317936][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.318109][ C0] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.318252][ C0] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.318390][ C0] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.318529][ C0] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.318675][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.318818][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.318992][ C0] RIP: 0033:0x7f78965f17b7 [ 33.319141][ C0] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 33.319632][ C0] RSP: 002b:00007ffc37bc6a48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.319849][ C0] RAX: ffffffffffffffda RBX: 00007ffc37bc7180 RCX: 00007f78965f17b7 [ 33.320059][ C0] RDX: 0000000000000000 RSI: 00007ffc37bc6ab0 RDI: 0000000000000005 [ 33.320273][ C0] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.320483][ C0] R10: 0000000038df5910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: do_raw_spin_unlock:_raw_spin_unlock:net_tx_action:handle_softirqs:do_softirq