====================================== | [ 240.041543][ T833] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 240.041727][ T833] | [ 240.041803][ T833] | [ 240.041803][ T833] stack backtrace: [ 240.042290][ T833] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 240.042704][ T833] Call Trace: [ 240.042816][ T833] [ 240.042895][ T833] dump_stack_lvl (lib/dump_stack.c:117) [ 240.043052][ T833] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 240.043205][ T833] ? 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) [ 240.043445][ T833] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 240.043627][ T833] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 240.043772][ T833] ? __bfs (kernel/locking/lockdep.c:1787) [ 240.043881][ T833] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 240.044030][ T833] check_irq_usage (kernel/locking/lockdep.c:2871) [ 240.044268][ T833] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 240.044414][ T833] ? __bfs (kernel/locking/lockdep.c:1787) [ 240.044548][ T833] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 240.044699][ T833] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 240.044954][ T833] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 240.045102][ T833] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 240.045279][ T833] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 240.045437][ T833] check_prev_add (kernel/locking/lockdep.c:3138) [ 240.045686][ T833] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 240.045867][ T833] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 240.046037][ T833] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 240.046152][ T833] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 240.046300][ T833] ? 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) [ 240.046623][ T833] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 240.046739][ T833] __lock_acquire (kernel/locking/lockdep.c:5137) [ 240.046887][ T833] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 240.047037][ T833] ? __get_task_comm (fs/exec.c:1234) [ 240.047184][ T833] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 240.047302][ T833] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 240.047453][ T833] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 240.047601][ T833] ? __get_task_comm (fs/exec.c:1234) [ 240.047749][ T833] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 240.047895][ T833] ? __get_task_comm (fs/exec.c:1234) [ 240.048042][ T833] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 240.048188][ T833] ? __get_task_comm (fs/exec.c:1234) [ 240.048336][ T833] __get_task_comm (fs/exec.c:1234) [ 240.048571][ T833] ref_tracker_alloc (lib/ref_tracker.c:217) [ 240.048719][ T833] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 240.048889][ T833] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 240.049036][ T833] ? netdev_get_by_index (net/core/dev.c:914) [ 240.049281][ T833] ? fib6_nh_init (net/ipv6/route.c:3541) [ 240.049435][ T833] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 240.049585][ T833] ? ip6_route_add (net/ipv6/route.c:3851) [ 240.049731][ T833] ? addrconf_prefix_route (net/ipv6/addrconf.c:2460) [ 240.049887][ T833] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3599 net/ipv6/addrconf.c:3623) [ 240.050133][ T833] ? addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 240.050292][ T833] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 240.050439][ T833] ? __dev_notify_flags (net/core/dev.c:8800) [ 240.050596][ T833] ? dev_change_flags (net/core/dev.c:8835) [ 240.050835][ T833] ? do_setlink (net/core/rtnetlink.c:2884) [ 240.050988][ T833] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 240.051135][ T833] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 240.051283][ T833] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 240.051526][ T833] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 240.051678][ T833] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 240.051831][ T833] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 240.051980][ T833] netdev_get_by_index (net/core/dev.c:914) [ 240.052229][ T833] fib6_nh_init (net/ipv6/route.c:3541) [ 240.052380][ T833] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 240.052568][ T833] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 240.052714][ T833] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 240.052980][ T833] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 240.053128][ T833] ? __kmalloc (mm/slub.c:3980) [ 240.053296][ T833] ? fib6_get_table (net/ipv6/ip6_fib.c:295) [ 240.053468][ T833] ip6_route_info_create (net/ipv6/route.c:3808) [ 240.053629][ T833] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 240.053921][ T833] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 240.054068][ T833] ip6_route_add (net/ipv6/route.c:3851) [ 240.054237][ T833] addrconf_prefix_route (net/ipv6/addrconf.c:2460) [ 240.054386][ T833] ? __pfx_addrconf_prefix_route (net/ipv6/addrconf.c:2460) [ 240.054690][ T833] ? 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) [ 240.054872][ T833] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 240.055018][ T833] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 240.055173][ T833] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3621) [ 240.055410][ T833] addrconf_permanent_addr (net/ipv6/addrconf.c:3599 net/ipv6/addrconf.c:3623) [ 240.055569][ T833] addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 240.055714][ T833] ? fib_netdev_event (net/ipv4/fib_frontend.c:1520) [ 240.055868][ T833] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 240.056107][ T833] __dev_notify_flags (net/core/dev.c:8800) [ 240.056269][ T833] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 240.056416][ T833] ? __dev_change_flags (net/core/dev.c:8756) [ 240.056563][ T833] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 240.056798][ T833] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 240.056946][ T833] dev_change_flags (net/core/dev.c:8835) [ 240.057093][ T833] do_setlink (net/core/rtnetlink.c:2884) [ 240.057242][ T833] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 240.057485][ T833] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 240.057633][ T833] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 240.057782][ T833] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 240.057932][ T833] ? __kernel_text_address (kernel/extable.c:79) [ 240.058078][ T833] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 240.058418][ T833] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 240.058607][ T833] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 240.058761][ T833] ? stack_trace_save (kernel/stacktrace.c:123) [ 240.058912][ T833] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 240.059175][ T833] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 240.059336][ T833] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 240.059470][ T833] ? kasan_save_stack (mm/kasan/common.c:49) [ 240.059634][ T833] ? kasan_save_stack (mm/kasan/common.c:48) [ 240.059883][ T833] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 240.060048][ T833] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 240.060207][ T833] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 240.060366][ T833] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 240.060649][ T833] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 240.060812][ T833] ? validate_nla (lib/nlattr.c:513) [ 240.060980][ T833] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 240.061140][ T833] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 240.061304][ T833] ? __x64_sys_sendto (net/socket.c:2199) [ 240.061464][ T833] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 240.061629][ T833] ? 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) [ 240.061789][ T833] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 240.061975][ T833] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 240.062187][ T833] ? __create_object (mm/kmemleak.c:756) [ 240.062350][ T833] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 240.062515][ T833] rtnl_newlink (net/core/rtnetlink.c:3728) [ 240.062635][ T833] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 240.062880][ T833] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 240.063029][ T833] ? 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) [ 240.063173][ T833] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 240.063298][ T833] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 240.063448][ T833] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 240.063710][ T833] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 240.063864][ T833] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 240.064028][ T833] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 240.064191][ T833] ? 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) [ 240.064358][ T833] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 240.064526][ T833] ? 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) [ 240.064699][ T833] ? 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) [ 240.064859][ T833] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 240.065017][ T833] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 240.065178][ T833] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 240.065337][ T833] ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:835) [ 240.065501][ T833] ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:858) [ 240.065664][ T833] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 240.065833][ T833] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 240.065998][ T833] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 240.066171][ T833] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 240.066332][ T833] ? __pfx___sys_sendto (net/socket.c:2161) [ 240.066587][ T833] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 240.066791][ T833] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:960) [ 240.066991][ T833] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:896 ./include/linux/mmzone.h:2029 arch/x86/mm/physaddr.c:65) [ 240.067242][ T833] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 240.067448][ T833] __x64_sys_sendto (net/socket.c:2199) [ 240.067608][ T833] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 240.067807][ T833] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 240.068058][ T833] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 240.068259][ T833] RIP: 0033:0x7f69c59a6700 [ 240.068429][ T833] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 All code ======== 0: ff (bad) 1: ff 64 89 02 jmp *0x2(%rcx,%rcx,4) 5: eb bd jmp 0xffffffffffffffc4 7: 0f 1f 00 nopl (%rax) a: f3 0f 1e fa endbr64 e: 41 89 ca mov %ecx,%r10d 11: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 18: 00 19: 85 c0 test %eax,%eax 1b: 75 1d jne 0x3a 1d: 45 31 c9 xor %r9d,%r9d 20: 45 31 c0 xor %r8d,%r8d 23: b8 2c 00 00 00 mov $0x2c,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 68 ja 0x9a 32: c3 ret 33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3a: 41 54 push %r12 3c: 48 83 ec 20 sub $0x20,%rsp Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 68 ja 0x70 8: c3 ret 9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 10: 41 54 push %r12 12: 48 83 ec 20 sub $0x20,%rsp [ 240.069090][ T833] RSP: 002b:00007ffc037ccc38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 240.069333][ T833] RAX: ffffffffffffffda RBX: 0000000000001b62 RCX: 00007f69c59a6700 [ 240.069671][ T833] RDX: 0000000000000020 RSI: 00007ffc037ccc40 RDI: 0000000000000008 [ 240.069913][ T833] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 240.070158][ T833] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc037ccc40 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add