====================================== | [ 83.855707][ T665] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 83.855895][ T665] | [ 83.855973][ T665] | [ 83.855973][ T665] stack backtrace: [ 83.856469][ T665] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 83.856793][ T665] Call Trace: [ 83.856910][ T665] [ 83.856991][ T665] dump_stack_lvl (lib/dump_stack.c:117) [ 83.857334][ T665] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 83.857482][ T665] ? 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) [ 83.857630][ T665] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 83.857812][ T665] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 83.858049][ T665] ? __bfs (kernel/locking/lockdep.c:1787) [ 83.858161][ T665] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 83.858308][ T665] check_irq_usage (kernel/locking/lockdep.c:2871) [ 83.858456][ T665] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 83.858699][ T665] ? __bfs (kernel/locking/lockdep.c:1787) [ 83.858810][ T665] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 83.858958][ T665] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 83.859104][ T665] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 83.859254][ T665] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 83.859496][ T665] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 83.859642][ T665] check_prev_add (kernel/locking/lockdep.c:3138) [ 83.859788][ T665] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 83.859941][ T665] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 83.860182][ T665] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 83.860301][ T665] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 83.860447][ T665] ? 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) [ 83.860593][ T665] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 83.860705][ T665] __lock_acquire (kernel/locking/lockdep.c:5137) [ 83.860947][ T665] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 83.861094][ T665] ? __get_task_comm (fs/exec.c:1234) [ 83.861240][ T665] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 83.861359][ T665] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 83.861597][ T665] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 83.861744][ T665] ? __get_task_comm (fs/exec.c:1234) [ 83.861889][ T665] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 83.862041][ T665] ? __get_task_comm (fs/exec.c:1234) [ 83.862188][ T665] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 83.862431][ T665] ? __get_task_comm (fs/exec.c:1234) [ 83.862577][ T665] __get_task_comm (fs/exec.c:1234) [ 83.862724][ T665] ref_tracker_alloc (lib/ref_tracker.c:217) [ 83.862880][ T665] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 83.863120][ T665] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 83.863265][ T665] ? netdev_get_by_index (net/core/dev.c:914) [ 83.863410][ T665] ? fib6_nh_init (net/ipv6/route.c:3541) [ 83.863557][ T665] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 83.863795][ T665] ? ip6_route_add (net/ipv6/route.c:3851) [ 83.863941][ T665] ? addrconf_prefix_route (net/ipv6/addrconf.c:2460) [ 83.864086][ T665] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3599 net/ipv6/addrconf.c:3623) [ 83.864235][ T665] ? addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 83.864470][ T665] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 83.864619][ T665] ? __dev_notify_flags (net/core/dev.c:8800) [ 83.864764][ T665] ? dev_change_flags (net/core/dev.c:8835) [ 83.864908][ T665] ? do_setlink (net/core/rtnetlink.c:2884) [ 83.865053][ T665] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 83.865290][ T665] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 83.865435][ T665] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 83.865587][ T665] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 83.865733][ T665] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 83.865970][ T665] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 83.866117][ T665] netdev_get_by_index (net/core/dev.c:914) [ 83.866263][ T665] fib6_nh_init (net/ipv6/route.c:3541) [ 83.866408][ T665] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 83.866686][ T665] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 83.866831][ T665] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 83.866980][ T665] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 83.867131][ T665] ? __kmalloc (mm/slub.c:3980) [ 83.867374][ T665] ? fib6_get_table (net/ipv6/ip6_fib.c:295) [ 83.867522][ T665] ip6_route_info_create (net/ipv6/route.c:3808) [ 83.867674][ T665] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 83.867855][ T665] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 83.868092][ T665] ip6_route_add (net/ipv6/route.c:3851) [ 83.868239][ T665] addrconf_prefix_route (net/ipv6/addrconf.c:2460) [ 83.868384][ T665] ? __pfx_addrconf_prefix_route (net/ipv6/addrconf.c:2460) [ 83.868575][ T665] ? do_raw_write_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qrwlock.h:98 kernel/locking/spinlock_debug.c:211) [ 83.868916][ T665] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 83.869061][ T665] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 83.869207][ T665] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3621) [ 83.869355][ T665] addrconf_permanent_addr (net/ipv6/addrconf.c:3599 net/ipv6/addrconf.c:3623) [ 83.869595][ T665] addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 83.869744][ T665] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 83.869899][ T665] __dev_notify_flags (net/core/dev.c:8800) [ 83.870045][ T665] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 83.870191][ T665] ? __dev_change_flags (net/core/dev.c:8756) [ 83.870430][ T665] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 83.870575][ T665] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 83.870722][ T665] dev_change_flags (net/core/dev.c:8835) [ 83.870868][ T665] do_setlink (net/core/rtnetlink.c:2884) [ 83.871107][ T665] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 83.871258][ T665] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 83.871403][ T665] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 83.871548][ T665] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 83.871788][ T665] ? __kernel_text_address (kernel/extable.c:79) [ 83.871934][ T665] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 83.872083][ T665] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 83.872265][ T665] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 83.872507][ T665] ? stack_trace_save (kernel/stacktrace.c:123) [ 83.872658][ T665] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 83.872804][ T665] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 83.872970][ T665] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 83.873084][ T665] ? kasan_save_stack (mm/kasan/common.c:49) [ 83.873321][ T665] ? kasan_save_stack (mm/kasan/common.c:48) [ 83.873468][ T665] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 83.873613][ T665] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 83.873758][ T665] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 83.873994][ T665] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 83.874146][ T665] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 83.874292][ T665] ? validate_nla (lib/nlattr.c:513) [ 83.874441][ T665] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 83.874680][ T665] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 83.874825][ T665] ? ___sys_sendmsg (net/socket.c:2640) [ 83.874973][ T665] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 83.875120][ T665] ? 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) [ 83.875360][ T665] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 83.875513][ T665] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 83.875699][ T665] ? __create_object (mm/kmemleak.c:756) [ 83.875846][ T665] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 83.876086][ T665] rtnl_newlink (net/core/rtnetlink.c:3728) [ 83.876197][ T665] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 83.876347][ T665] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 83.876492][ T665] ? 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) [ 83.876638][ T665] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 83.876842][ T665] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 83.876995][ T665] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 83.877141][ T665] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 83.877295][ T665] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 83.877534][ T665] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 83.877684][ T665] ? 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) [ 83.877829][ T665] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 83.877980][ T665] ? 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) [ 83.878127][ T665] ? 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) [ 83.878364][ T665] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 83.878513][ T665] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 83.878660][ T665] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 83.878806][ T665] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 83.879045][ T665] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 83.879192][ T665] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 83.879338][ T665] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 83.879493][ T665] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 83.879734][ T665] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 83.879881][ T665] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 83.880026][ T665] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 83.880207][ T665] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 83.880538][ T665] ___sys_sendmsg (net/socket.c:2640) [ 83.880686][ T665] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 83.880832][ T665] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 83.880979][ T665] ? __lock_release (kernel/locking/lockdep.c:5430) [ 83.881217][ T665] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 83.881401][ T665] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 83.881548][ T665] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 83.881698][ T665] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 83.881975][ T665] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 83.882123][ T665] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 83.882270][ T665] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 83.882426][ T665] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 83.882665][ T665] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 83.882848][ T665] RIP: 0033:0x7fbd0d2e57b7 [ 83.883012][ T665] 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) [ 83.883629][ T665] RSP: 002b:00007ffec6d36db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.883868][ T665] RAX: ffffffffffffffda RBX: 00007ffec6d374f0 RCX: 00007fbd0d2e57b7 [ 83.884183][ T665] RDX: 0000000000000000 RSI: 00007ffec6d36e20 RDI: 0000000000000005 [ 83.884403][ T665] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 83.884621][ T665] R10: 00007fbd0d1a34a8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add