====================================== | [ 44.994474][ T405] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 44.994762][ T405] | [ 44.994843][ T405] | [ 44.994843][ T405] stack backtrace: [ 44.995276][ T405] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.995724][ T405] Call Trace: [ 44.995847][ T405] [ 44.995935][ T405] dump_stack_lvl (lib/dump_stack.c:117) [ 44.996188][ T405] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 44.996350][ T405] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 44.996551][ T405] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 44.996707][ T405] ? __bfs (kernel/locking/lockdep.c:1787) [ 44.996828][ T405] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 44.997076][ T405] check_irq_usage (kernel/locking/lockdep.c:2871) [ 44.997237][ T405] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 44.997396][ T405] ? __bfs (kernel/locking/lockdep.c:1787) [ 44.997514][ T405] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 44.997769][ T405] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 44.997927][ T405] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 44.998089][ T405] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 44.998261][ T405] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 44.998438][ T405] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 44.998611][ T405] check_prev_add (kernel/locking/lockdep.c:3138) [ 44.998785][ T405] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 44.998958][ T405] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 44.999135][ T405] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 44.999356][ T405] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 44.999525][ T405] ? 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) [ 44.999682][ T405] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 44.999803][ T405] __lock_acquire (kernel/locking/lockdep.c:5137) [ 45.000070][ T405] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 45.000230][ T405] ? __get_task_comm (fs/exec.c:1234) [ 45.000399][ T405] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 45.000518][ T405] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 45.000674][ T405] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 45.000920][ T405] ? __get_task_comm (fs/exec.c:1234) [ 45.001074][ T405] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 45.001243][ T405] ? __get_task_comm (fs/exec.c:1234) [ 45.001399][ T405] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 45.001644][ T405] ? __get_task_comm (fs/exec.c:1234) [ 45.001801][ T405] __get_task_comm (fs/exec.c:1234) [ 45.001960][ T405] ref_tracker_alloc (lib/ref_tracker.c:217) [ 45.002117][ T405] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 45.002366][ T405] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 45.002524][ T405] ? netdev_get_by_index (net/core/dev.c:914) [ 45.002682][ T405] ? fib6_nh_init (net/ipv6/route.c:3541) [ 45.002841][ T405] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 45.003006][ T405] ? addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 45.003344][ T405] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3586 net/ipv6/addrconf.c:3623) [ 45.003505][ T405] ? addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 45.003662][ T405] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 45.003820][ T405] ? __dev_notify_flags (net/core/dev.c:8800) [ 45.004066][ T405] ? dev_change_flags (net/core/dev.c:8835) [ 45.004226][ T405] ? do_setlink (net/core/rtnetlink.c:2884) [ 45.004379][ T405] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 45.004538][ T405] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 45.004793][ T405] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 45.004960][ T405] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 45.005118][ T405] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 45.005281][ T405] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 45.005439][ T405] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 45.005598][ T405] netdev_get_by_index (net/core/dev.c:914) [ 45.005756][ T405] fib6_nh_init (net/ipv6/route.c:3541) [ 45.005915][ T405] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 45.006203][ T405] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 45.006378][ T405] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 45.006554][ T405] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 45.006725][ T405] ? __kmalloc (mm/slub.c:3980) [ 45.006900][ T405] ip6_route_info_create (net/ipv6/route.c:3808) [ 45.007161][ T405] ? __lock_release (kernel/locking/lockdep.c:5430) [ 45.007333][ T405] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 45.007546][ T405] ? addrconf_f6i_alloc (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/l3mdev.h:138 net/ipv6/route.c:4564) [ 45.007707][ T405] addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 45.007957][ T405] ? __pfx_addrconf_f6i_alloc (net/ipv6/route.c:4562) [ 45.008128][ T405] ? 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) [ 45.008306][ T405] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 45.008462][ T405] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 45.008713][ T405] ? addrconf_permanent_addr (net/ipv6/addrconf.c:3621) [ 45.008873][ T405] addrconf_permanent_addr (net/ipv6/addrconf.c:3586 net/ipv6/addrconf.c:3623) [ 45.009034][ T405] addrconf_notify (./include/linux/netdevice.h:4245 net/ipv6/addrconf.c:310 net/ipv6/addrconf.c:3697) [ 45.009192][ T405] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 45.009442][ T405] __dev_notify_flags (net/core/dev.c:8800) [ 45.009605][ T405] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 45.009764][ T405] ? __dev_change_flags (net/core/dev.c:8756) [ 45.009922][ T405] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 45.010169][ T405] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 45.010345][ T405] dev_change_flags (net/core/dev.c:8835) [ 45.010517][ T405] do_setlink (net/core/rtnetlink.c:2884) [ 45.010689][ T405] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 45.010853][ T405] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 45.011103][ T405] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 45.011268][ T405] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 45.011427][ T405] ? __kernel_text_address (kernel/extable.c:79) [ 45.011587][ T405] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 45.011839][ T405] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 45.012035][ T405] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 45.012208][ T405] ? stack_trace_save (kernel/stacktrace.c:123) [ 45.012368][ T405] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 45.012528][ T405] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 45.012685][ T405] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 45.012807][ T405] ? kasan_save_stack (mm/kasan/common.c:49) [ 45.012965][ T405] ? kasan_save_stack (mm/kasan/common.c:48) [ 45.013217][ T405] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 45.013380][ T405] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 45.013540][ T405] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 45.013699][ T405] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 45.013859][ T405] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 45.014107][ T405] ? validate_nla (lib/nlattr.c:513) [ 45.014269][ T405] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 45.014439][ T405] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 45.014597][ T405] ? ___sys_sendmsg (net/socket.c:2640) [ 45.014863][ T405] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 45.015024][ T405] ? 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) [ 45.015187][ T405] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 45.015346][ T405] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 45.015637][ T405] ? __create_object (mm/kmemleak.c:756) [ 45.015799][ T405] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 45.015960][ T405] rtnl_newlink (net/core/rtnetlink.c:3728) [ 45.016079][ T405] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 45.016329][ T405] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 45.016488][ T405] ? 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) [ 45.016648][ T405] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 45.016769][ T405] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 45.016930][ T405] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 45.017186][ T405] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 45.017346][ T405] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 45.017505][ T405] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 45.017666][ T405] ? 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) [ 45.017914][ T405] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 45.018075][ T405] ? 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) [ 45.018241][ T405] ? 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) [ 45.018416][ T405] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 45.018670][ T405] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 45.018831][ T405] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 45.018992][ T405] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 45.019151][ T405] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 45.019314][ T405] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 45.019561][ T405] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 45.019720][ T405] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 45.019881][ T405] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 45.020037][ T405] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 45.020287][ T405] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 45.020486][ T405] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 45.020648][ T405] ___sys_sendmsg (net/socket.c:2640) [ 45.020808][ T405] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 45.021059][ T405] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 45.021221][ T405] ? __lock_release (kernel/locking/lockdep.c:5430) [ 45.021384][ T405] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 45.021583][ T405] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 45.021837][ T405] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 45.021997][ T405] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 45.022197][ T405] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 45.022362][ T405] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 45.022520][ T405] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 45.022686][ T405] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 45.022845][ T405] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 45.023048][ T405] RIP: 0033:0x7f94847ab7b7 [ 45.023311][ T405] 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) [ 45.023868][ T405] RSP: 002b:00007ffde2a34498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 45.024216][ T405] RAX: ffffffffffffffda RBX: 00007ffde2a34bd0 RCX: 00007f94847ab7b7 [ 45.024452][ T405] RDX: 0000000000000000 RSI: 00007ffde2a34500 RDI: 0000000000000005 [ 45.024794][ T405] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 45.025030][ T405] R10: 00007f94846694a8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add