====================================== | [ 302.683969][ T801] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 302.684178][ T801] | [ 302.684269][ T801] | [ 302.684269][ T801] stack backtrace: [ 302.684737][ T801] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 302.685152][ T801] Call Trace: [ 302.685374][ T801] [ 302.685471][ T801] dump_stack_lvl (lib/dump_stack.c:117) [ 302.685637][ T801] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 302.685819][ T801] ? 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) [ 302.685992][ T801] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 302.686303][ T801] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 302.686466][ T801] ? __bfs (kernel/locking/lockdep.c:1787) [ 302.686596][ T801] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 302.686760][ T801] check_irq_usage (kernel/locking/lockdep.c:2871) [ 302.687034][ T801] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 302.687197][ T801] ? __bfs (kernel/locking/lockdep.c:1787) [ 302.687320][ T801] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 302.687481][ T801] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 302.687643][ T801] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 302.687903][ T801] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 302.688080][ T801] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 302.688259][ T801] check_prev_add (kernel/locking/lockdep.c:3138) [ 302.688431][ T801] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 302.688597][ T801] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 302.688780][ T801] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 302.688905][ T801] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 302.689086][ T801] ? 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) [ 302.689260][ T801] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 302.689612][ T801] __lock_acquire (kernel/locking/lockdep.c:5137) [ 302.689782][ T801] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 302.689962][ T801] ? __get_task_comm (fs/exec.c:1234) [ 302.690129][ T801] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 302.690369][ T801] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 302.690535][ T801] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 302.690699][ T801] ? __get_task_comm (fs/exec.c:1234) [ 302.690864][ T801] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 302.691028][ T801] ? __get_task_comm (fs/exec.c:1234) [ 302.691290][ T801] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 302.691454][ T801] ? __get_task_comm (fs/exec.c:1234) [ 302.691615][ T801] __get_task_comm (fs/exec.c:1234) [ 302.691777][ T801] ref_tracker_alloc (lib/ref_tracker.c:217) [ 302.692032][ T801] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 302.692217][ T801] ? __lock_release (kernel/locking/lockdep.c:5430) [ 302.692381][ T801] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 302.692582][ T801] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 302.692843][ T801] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 302.693005][ T801] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 302.693166][ T801] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 302.693327][ T801] ? __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 302.693488][ T801] ? netdev_master_upper_dev_link (net/core/dev.c:7937) [ 302.693700][ T801] ? vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 302.693866][ T801] ? do_setlink (net/core/rtnetlink.c:2891) [ 302.694027][ T801] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 302.694285][ T801] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 302.694446][ T801] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 302.694606][ T801] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 302.694768][ T801] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 302.695019][ T801] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 302.695181][ T801] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 302.695345][ T801] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 302.695509][ T801] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 302.695834][ T801] rt6_disable_ip (net/ipv6/route.c:4910) [ 302.696020][ T801] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 302.696181][ T801] ? 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) [ 302.696362][ T801] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 302.696542][ T801] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 302.696710][ T801] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 302.696931][ T801] addrconf_notify (net/ipv6/addrconf.c:3811) [ 302.697093][ T801] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 302.697255][ T801] __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 302.697513][ T801] ? __pfx___netdev_upper_dev_link (net/core/dev.c:7821) [ 302.697714][ T801] netdev_master_upper_dev_link (net/core/dev.c:7937) [ 302.697873][ T801] ? __pfx_netdev_master_upper_dev_link (net/core/dev.c:7931) [ 302.698162][ T801] ? 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) [ 302.698322][ T801] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 302.698482][ T801] ? netdev_master_upper_dev_get (net/core/dev.c:7024) [ 302.698683][ T801] vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 302.698940][ T801] do_setlink (net/core/rtnetlink.c:2891) [ 302.699109][ T801] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 302.699278][ T801] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 302.699439][ T801] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 302.699601][ T801] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 302.699853][ T801] ? __kernel_text_address (kernel/extable.c:79) [ 302.700015][ T801] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 302.700176][ T801] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 302.700385][ T801] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 302.700643][ T801] ? stack_trace_save (kernel/stacktrace.c:123) [ 302.700803][ T801] ? __pfx_validate_nla (lib/nlattr.c:396) [ 302.700964][ T801] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 302.701125][ T801] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 302.701341][ T801] ? __nla_validate_parse (lib/nlattr.c:635) [ 302.701504][ T801] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 302.701696][ T801] ? 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) [ 302.701861][ T801] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 302.702248][ T801] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 302.702450][ T801] ? __create_object (mm/kmemleak.c:756) [ 302.702632][ T801] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 302.702809][ T801] rtnl_newlink (net/core/rtnetlink.c:3728) [ 302.702934][ T801] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 302.703184][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 302.703345][ T801] ? 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) [ 302.703513][ T801] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 302.703641][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 302.703898][ T801] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 302.704059][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 302.704220][ T801] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 302.704366][ T801] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 302.704517][ T801] ? 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) [ 302.704663][ T801] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 302.704809][ T801] ? 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) [ 302.704959][ T801] ? 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) [ 302.705114][ T801] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 302.705351][ T801] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 302.705506][ T801] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 302.705653][ T801] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 302.705801][ T801] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 302.706070][ T801] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 302.706238][ T801] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 302.706419][ T801] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 302.706570][ T801] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 302.706811][ T801] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 302.706976][ T801] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 302.707169][ T801] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 302.707328][ T801] ___sys_sendmsg (net/socket.c:2640) [ 302.707494][ T801] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 302.707645][ T801] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 302.707814][ T801] ? __lock_release (kernel/locking/lockdep.c:5430) [ 302.707961][ T801] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 302.708254][ T801] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 302.708414][ T801] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 302.708580][ T801] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 302.708794][ T801] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 302.709043][ T801] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 302.709211][ T801] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 302.709379][ T801] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 302.709532][ T801] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 302.709808][ T801] RIP: 0033:0x7fb94713a7b7 [ 302.709964][ T801] 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) [ 302.710488][ T801] RSP: 002b:00007fff32d420b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 302.710714][ T801] RAX: ffffffffffffffda RBX: 00007fff32d427e0 RCX: 00007fb94713a7b7 [ 302.710938][ T801] RDX: 0000000000000000 RSI: 00007fff32d42120 RDI: 0000000000000005 [ 302.711254][ T801] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 302.711473][ T801] R10: 00000000303c4910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add