====================================== | [ 31.050122][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 31.050309][ T307] | [ 31.050384][ T307] | [ 31.050384][ T307] stack backtrace: [ 31.050790][ T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 31.051203][ T307] Call Trace: [ 31.051314][ T307] <TASK> [ 31.051390][ T307] dump_stack_lvl (lib/dump_stack.c:117) [ 31.051636][ T307] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 31.051790][ T307] ? 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) [ 31.051938][ T307] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 31.052118][ T307] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 31.052356][ T307] ? __bfs (kernel/locking/lockdep.c:1787) [ 31.052466][ T307] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 31.052613][ T307] check_irq_usage (kernel/locking/lockdep.c:2871) [ 31.052767][ T307] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 31.052913][ T307] ? __bfs (kernel/locking/lockdep.c:1787) [ 31.053120][ T307] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 31.053268][ T307] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 31.053414][ T307] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 31.053561][ T307] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 31.053814][ T307] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 31.053961][ T307] check_prev_add (kernel/locking/lockdep.c:3138) [ 31.054107][ T307] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 31.054255][ T307] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 31.054407][ T307] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 31.054608][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 31.054758][ T307] ? 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) [ 31.054904][ T307] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 31.055016][ T307] __lock_acquire (kernel/locking/lockdep.c:5137) [ 31.055273][ T307] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 31.055420][ T307] ? __get_task_comm (fs/exec.c:1234) [ 31.055565][ T307] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 31.055682][ T307] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 31.055837][ T307] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 31.055985][ T307] ? __get_task_comm (fs/exec.c:1234) [ 31.056131][ T307] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 31.056275][ T307] ? __get_task_comm (fs/exec.c:1234) [ 31.056425][ T307] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 31.056581][ T307] ? __get_task_comm (fs/exec.c:1234) [ 31.056735][ T307] __get_task_comm (fs/exec.c:1234) [ 31.056881][ T307] ref_tracker_alloc (lib/ref_tracker.c:217) [ 31.057079][ T307] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 31.057283][ T307] ? __lock_release (kernel/locking/lockdep.c:5430) [ 31.057484][ T307] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 31.057673][ T307] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 31.057827][ T307] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 31.058065][ T307] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 31.058212][ T307] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 31.058359][ T307] ? __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 31.058511][ T307] ? netdev_master_upper_dev_link (net/core/dev.c:7937) [ 31.058790][ T307] ? vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 31.058942][ T307] ? do_setlink (net/core/rtnetlink.c:2891) [ 31.059088][ T307] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 31.059233][ T307] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 31.059380][ T307] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 31.059618][ T307] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 31.059804][ T307] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 31.059968][ T307] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 31.060126][ T307] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 31.060387][ T307] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 31.060547][ T307] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 31.060755][ T307] rt6_disable_ip (net/ipv6/route.c:4910) [ 31.060916][ T307] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 31.061075][ T307] ? 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) [ 31.061236][ T307] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 31.061395][ T307] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 31.061560][ T307] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 31.061765][ T307] addrconf_notify (net/ipv6/addrconf.c:3811) [ 31.061925][ T307] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 31.062088][ T307] __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 31.062247][ T307] ? __pfx___netdev_upper_dev_link (net/core/dev.c:7821) [ 31.062447][ T307] netdev_master_upper_dev_link (net/core/dev.c:7937) [ 31.062605][ T307] ? __pfx_netdev_master_upper_dev_link (net/core/dev.c:7931) [ 31.062820][ T307] ? 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) [ 31.062981][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 31.063236][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7024) [ 31.063437][ T307] vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 31.063602][ T307] do_setlink (net/core/rtnetlink.c:2891) [ 31.063763][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 31.064016][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 31.064176][ T307] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 31.064338][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 31.064498][ T307] ? __kernel_text_address (kernel/extable.c:79) [ 31.064658][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 31.064826][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 31.065021][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 31.065185][ T307] ? stack_trace_save (kernel/stacktrace.c:123) [ 31.065346][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) [ 31.065506][ T307] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 31.065671][ T307] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 31.065795][ T307] ? __nla_validate_parse (lib/nlattr.c:635) [ 31.065956][ T307] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 31.066118][ T307] ? 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) [ 31.066276][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 31.066439][ T307] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 31.066654][ T307] ? __create_object (mm/kmemleak.c:756) [ 31.066858][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 31.067035][ T307] rtnl_newlink (net/core/rtnetlink.c:3728) [ 31.067149][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 31.067296][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 31.067443][ T307] ? 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) [ 31.067587][ T307] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 31.067742][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 31.067890][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 31.068037][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 31.068183][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 31.068334][ T307] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 31.068483][ T307] ? 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) [ 31.068630][ T307] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 31.068787][ T307] ? 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) [ 31.068935][ T307] ? 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) [ 31.069081][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 31.069226][ T307] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 31.069470][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 31.069616][ T307] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 31.069771][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 31.069917][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 31.070152][ T307] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 31.070298][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 31.070446][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 31.070594][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 31.070750][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 31.071022][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 31.071171][ T307] ___sys_sendmsg (net/socket.c:2640) [ 31.071318][ T307] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 31.071465][ T307] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 31.071709][ T307] ? __lock_release (kernel/locking/lockdep.c:5430) [ 31.071854][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 31.072035][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 31.072186][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 31.072423][ T307] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 31.072624][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 31.072784][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 31.072932][ T307] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 31.073172][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 31.073318][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 31.073501][ T307] RIP: 0033:0x7fead3c517b7 [ 31.073664][ T307] 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) [ 31.074283][ T307] RSP: 002b:00007ffc4c17d228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.074603][ T307] RAX: ffffffffffffffda RBX: 00007ffc4c17d950 RCX: 00007fead3c517b7 [ 31.074833][ T307] RDX: 0000000000000000 RSI: 00007ffc4c17d290 RDI: 0000000000000005 [ 31.075052][ T307] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 31.075422][ T307] R10: 000000002168e910 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add