====================================== | [ 120.603996][ T747] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 120.604198][ T747] | [ 120.604280][ T747] | [ 120.604280][ T747] stack backtrace: [ 120.604900][ T747] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 120.605254][ T747] Call Trace: [ 120.605394][ T747] [ 120.605478][ T747] dump_stack_lvl (lib/dump_stack.c:117) [ 120.605736][ T747] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 120.605907][ T747] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 120.606118][ T747] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 120.606285][ T747] ? __bfs (kernel/locking/lockdep.c:1787) [ 120.606404][ T747] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 120.606562][ T747] check_irq_usage (kernel/locking/lockdep.c:2871) [ 120.606723][ T747] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 120.606884][ T747] ? __bfs (kernel/locking/lockdep.c:1787) [ 120.607102][ T747] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 120.607272][ T747] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 120.607434][ T747] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 120.607597][ T747] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 120.607757][ T747] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 120.608018][ T747] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 120.608181][ T747] check_prev_add (kernel/locking/lockdep.c:3138) [ 120.608344][ T747] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 120.608504][ T747] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 120.608755][ T747] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 120.608882][ T747] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 120.609061][ T747] ? 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) [ 120.609225][ T747] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 120.609353][ T747] __lock_acquire (kernel/locking/lockdep.c:5137) [ 120.609617][ T747] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 120.609781][ T747] ? __get_task_comm (fs/exec.c:1234) [ 120.609940][ T747] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 120.610065][ T747] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 120.610226][ T747] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 120.610389][ T747] ? __get_task_comm (fs/exec.c:1234) [ 120.610549][ T747] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 120.610707][ T747] ? __get_task_comm (fs/exec.c:1234) [ 120.610957][ T747] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 120.611116][ T747] ? __get_task_comm (fs/exec.c:1234) [ 120.611274][ T747] __get_task_comm (fs/exec.c:1234) [ 120.611460][ T747] ref_tracker_alloc (lib/ref_tracker.c:217) [ 120.611718][ T747] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 120.612108][ T747] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 120.612342][ T747] ? netdev_get_by_index (net/core/dev.c:914) [ 120.612502][ T747] ? fib6_nh_init (net/ipv6/route.c:3541) [ 120.612662][ T747] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 120.612924][ T747] ? addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 120.613084][ T747] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3586 net/ipv6/addrconf.c:3623) [ 120.613242][ T747] ? addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 120.613401][ T747] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 120.613662][ T747] ? __dev_notify_flags (net/core/dev.c:8800) [ 120.613823][ T747] ? dev_change_flags (net/core/dev.c:8835) [ 120.613983][ T747] ? do_setlink (net/core/rtnetlink.c:2884) [ 120.614149][ T747] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 120.614400][ T747] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 120.614564][ T747] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 120.614733][ T747] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 120.614894][ T747] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 120.615054][ T747] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 120.615306][ T747] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 120.615467][ T747] netdev_get_by_index (net/core/dev.c:914) [ 120.615629][ T747] fib6_nh_init (net/ipv6/route.c:3541) [ 120.615791][ T747] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 120.616088][ T747] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 120.616249][ T747] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 120.616413][ T747] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 120.616574][ T747] ? __kmalloc (mm/slub.c:3980) [ 120.616825][ T747] ip6_route_info_create (net/ipv6/route.c:3808) [ 120.616989][ T747] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 120.617185][ T747] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 120.617307][ T747] addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 120.617658][ T747] ? __pfx_addrconf_f6i_alloc (net/ipv6/route.c:4562) [ 120.617818][ T747] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 120.617983][ T747] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 120.618143][ T747] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 120.618307][ T747] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3621) [ 120.618466][ T747] addrconf_permanent_addr (net/ipv6/addrconf.c:3586 net/ipv6/addrconf.c:3623) [ 120.618626][ T747] addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 120.618790][ T747] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 120.618952][ T747] __dev_notify_flags (net/core/dev.c:8800) [ 120.619211][ T747] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 120.619370][ T747] ? __dev_change_flags (net/core/dev.c:8756) [ 120.619531][ T747] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 120.619693][ T747] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 120.619942][ T747] dev_change_flags (net/core/dev.c:8835) [ 120.620101][ T747] do_setlink (net/core/rtnetlink.c:2884) [ 120.620259][ T747] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 120.620422][ T747] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 120.620671][ T747] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 120.620830][ T747] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 120.620990][ T747] ? __kernel_text_address (kernel/extable.c:79) [ 120.621154][ T747] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 120.621406][ T747] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 120.621606][ T747] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 120.621778][ T747] ? stack_trace_save (kernel/stacktrace.c:123) [ 120.621934][ T747] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 120.622196][ T747] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 120.622357][ T747] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 120.622482][ T747] ? kasan_save_stack (mm/kasan/common.c:49) [ 120.622642][ T747] ? kasan_save_stack (mm/kasan/common.c:48) [ 120.622806][ T747] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 120.623057][ T747] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 120.623225][ T747] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 120.623384][ T747] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 120.623544][ T747] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 120.623794][ T747] ? __nla_validate_parse (lib/nlattr.c:619) [ 120.623951][ T747] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 120.624117][ T747] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 120.624279][ T747] ? ___sys_sendmsg (net/socket.c:2640) [ 120.624543][ T747] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 120.624705][ T747] ? 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) [ 120.624872][ T747] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 120.625044][ T747] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 120.625245][ T747] ? __create_object (mm/kmemleak.c:756) [ 120.625414][ T747] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 120.625573][ T747] rtnl_newlink (net/core/rtnetlink.c:3728) [ 120.625696][ T747] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 120.625860][ T747] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 120.626110][ T747] ? 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) [ 120.626275][ T747] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 120.626410][ T747] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 120.626570][ T747] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 120.626828][ T747] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 120.626994][ T747] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 120.627160][ T747] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 120.627328][ T747] ? 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) [ 120.627493][ T747] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 120.627744][ T747] ? 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) [ 120.627912][ T747] ? 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) [ 120.628076][ T747] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 120.628243][ T747] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 120.628406][ T747] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 120.628573][ T747] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 120.628738][ T747] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 120.628900][ T747] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 120.629168][ T747] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 120.629329][ T747] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 120.629493][ T747] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 120.629652][ T747] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 120.630000][ T747] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 120.630210][ T747] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 120.630386][ T747] ___sys_sendmsg (net/socket.c:2640) [ 120.630548][ T747] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 120.630808][ T747] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 120.630975][ T747] ? __lock_release (kernel/locking/lockdep.c:5430) [ 120.631138][ T747] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 120.631340][ T747] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 120.631605][ T747] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 120.631771][ T747] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 120.631978][ T747] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 120.632141][ T747] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 120.632308][ T747] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 120.632480][ T747] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 120.632644][ T747] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 120.632847][ T747] RIP: 0033:0x7f2770ba07b7 [ 120.633111][ T747] 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) [ 120.633694][ T747] RSP: 002b:00007ffd45567868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 120.634033][ T747] RAX: ffffffffffffffda RBX: 00007ffd45567fa0 RCX: 00007f2770ba07b7 [ 120.634287][ T747] RDX: 0000000000000000 RSI: 00007ffd455678d0 RDI: 0000000000000005 [ 120.634538][ T747] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 120.634871][ T747] R10: 00007f2770a5e4a8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add