====================================== | [ 80.080265][ T395] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 80.080465][ T395] | [ 80.080548][ T395] | [ 80.080548][ T395] stack backtrace: [ 80.080992][ T395] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 80.081346][ T395] Call Trace: [ 80.081471][ T395] [ 80.081648][ T395] dump_stack_lvl (lib/dump_stack.c:117) [ 80.081814][ T395] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 80.081978][ T395] ? 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:228) [ 80.082145][ T395] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 80.082528][ T395] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 80.082690][ T395] ? __bfs (kernel/locking/lockdep.c:1787) [ 80.082810][ T395] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 80.082977][ T395] check_irq_usage (kernel/locking/lockdep.c:2871) [ 80.083140][ T395] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 80.083409][ T395] ? __bfs (kernel/locking/lockdep.c:1787) [ 80.083532][ T395] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 80.083694][ T395] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 80.083858][ T395] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 80.084109][ T395] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 80.084273][ T395] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 80.084432][ T395] check_prev_add (kernel/locking/lockdep.c:3138) [ 80.084594][ T395] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 80.084753][ T395] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 80.085005][ T395] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 80.085129][ T395] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 80.085296][ T395] ? 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:228) [ 80.085457][ T395] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 80.085669][ T395] __lock_acquire (kernel/locking/lockdep.c:5137) [ 80.085832][ T395] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 80.085995][ T395] ? __get_task_comm (fs/exec.c:1234) [ 80.086155][ T395] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 80.086278][ T395] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 80.086537][ T395] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 80.086703][ T395] ? __get_task_comm (fs/exec.c:1234) [ 80.086861][ T395] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 80.087019][ T395] ? __get_task_comm (fs/exec.c:1234) [ 80.087275][ T395] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 80.087436][ T395] ? __get_task_comm (fs/exec.c:1234) [ 80.087594][ T395] __get_task_comm (fs/exec.c:1234) [ 80.087755][ T395] ref_tracker_alloc (lib/ref_tracker.c:217) [ 80.087917][ T395] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 80.088079][ T395] ? __lock_release (kernel/locking/lockdep.c:5430) [ 80.088243][ T395] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 80.088441][ T395] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 80.088693][ T395] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 80.088854][ T395] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 80.089011][ T395] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 80.089171][ T395] ? __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 80.089338][ T395] ? netdev_master_upper_dev_link (net/core/dev.c:7937) [ 80.089633][ T395] ? vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 80.089799][ T395] ? do_setlink (net/core/rtnetlink.c:2891) [ 80.089962][ T395] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 80.090123][ T395] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 80.090376][ T395] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 80.090537][ T395] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 80.090699][ T395] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 80.090859][ T395] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 80.091018][ T395] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 80.091183][ T395] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 80.091346][ T395] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 80.091553][ T395] rt6_disable_ip (net/ipv6/route.c:4910) [ 80.091800][ T395] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 80.091954][ T395] ? 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:228) [ 80.092104][ T395] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 80.092250][ T395] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 80.092490][ T395] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 80.092680][ T395] addrconf_notify (net/ipv6/addrconf.c:3811) [ 80.092828][ T395] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 80.092975][ T395] __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 80.093213][ T395] ? __pfx___netdev_upper_dev_link (net/core/dev.c:7821) [ 80.093413][ T395] netdev_master_upper_dev_link (net/core/dev.c:7937) [ 80.093573][ T395] ? __pfx_netdev_master_upper_dev_link (net/core/dev.c:7931) [ 80.093755][ T395] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:81 kernel/locking/mutex.c:91) [ 80.093903][ T395] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 80.094055][ T395] ? netdev_master_upper_dev_get (net/core/dev.c:7024) [ 80.094238][ T395] vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 80.094389][ T395] do_setlink (net/core/rtnetlink.c:2891) [ 80.094720][ T395] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 80.094868][ T395] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 80.095019][ T395] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 80.095177][ T395] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 80.095418][ T395] ? __kernel_text_address (kernel/extable.c:79) [ 80.095575][ T395] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 80.095727][ T395] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 80.095912][ T395] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 80.096152][ T395] ? stack_trace_save (kernel/stacktrace.c:123) [ 80.096300][ T395] ? __pfx_validate_nla (lib/nlattr.c:396) [ 80.096445][ T395] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 80.096595][ T395] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 80.096711][ T395] ? __nla_validate_parse (lib/nlattr.c:635) [ 80.096953][ T395] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 80.097103][ T395] ? 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:228) [ 80.097250][ T395] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 80.097406][ T395] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 80.097682][ T395] ? __create_object (mm/kmemleak.c:756) [ 80.097831][ T395] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 80.097983][ T395] rtnl_newlink (net/core/rtnetlink.c:3728) [ 80.098094][ T395] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 80.098337][ T395] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 80.098489][ T395] ? 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:228) [ 80.098650][ T395] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 80.098772][ T395] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 80.098933][ T395] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 80.099173][ T395] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 80.099330][ T395] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 80.099477][ T395] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 80.099630][ T395] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 80.099867][ T395] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 80.100017][ T395] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 80.100164][ T395] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 80.100312][ T395] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 80.100551][ T395] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 80.100699][ T395] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 80.100847][ T395] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 80.100997][ T395] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 80.101242][ T395] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 80.101389][ T395] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 80.101539][ T395] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 80.101689][ T395] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 80.101839][ T395] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 80.101985][ T395] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 80.102168][ T395] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 80.102321][ T395] ___sys_sendmsg (net/socket.c:2640) [ 80.102474][ T395] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 80.102726][ T395] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 80.102886][ T395] ? __lock_release (kernel/locking/lockdep.c:5430) [ 80.103049][ T395] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 80.103248][ T395] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 80.103513][ T395] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 80.103669][ T395] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 80.103857][ T395] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 80.104006][ T395] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 80.104244][ T395] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 80.104398][ T395] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 80.104549][ T395] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 80.104733][ T395] RIP: 0033:0x7f63975547b7 [ 80.104981][ T395] 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) [ 80.105601][ T395] RSP: 002b:00007ffedd9a2e58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 80.105826][ T395] RAX: ffffffffffffffda RBX: 00007ffedd9a3580 RCX: 00007f63975547b7 [ 80.106051][ T395] RDX: 0000000000000000 RSI: 00007ffedd9a2ec0 RDI: 0000000000000005 [ 80.106456][ T395] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 80.106685][ T395] R10: 0000000019a66910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add