====================================== | [ 575.715856][ T7534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 575.716037][ T7534] | [ 575.716112][ T7534] | [ 575.716112][ T7534] stack backtrace: [ 575.716601][ T7534] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 575.716936][ T7534] Call Trace: [ 575.717049][ T7534] [ 575.717124][ T7534] dump_stack_lvl (lib/dump_stack.c:117) [ 575.717361][ T7534] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 575.717506][ T7534] ? 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) [ 575.717651][ T7534] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 575.717842][ T7534] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 575.718073][ T7534] ? __bfs (kernel/locking/lockdep.c:1787) [ 575.718180][ T7534] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 575.718324][ T7534] check_irq_usage (kernel/locking/lockdep.c:2871) [ 575.718474][ T7534] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 575.718712][ T7534] ? __bfs (kernel/locking/lockdep.c:1787) [ 575.718828][ T7534] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 575.718971][ T7534] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 575.719111][ T7534] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 575.719255][ T7534] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 575.719491][ T7534] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 575.719641][ T7534] check_prev_add (kernel/locking/lockdep.c:3138) [ 575.719847][ T7534] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 575.720015][ T7534] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 575.720160][ T7534] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 575.720270][ T7534] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 575.720415][ T7534] ? 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) [ 575.720558][ T7534] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 575.720669][ T7534] __lock_acquire (kernel/locking/lockdep.c:5137) [ 575.720828][ T7534] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 575.720978][ T7534] ? __get_task_comm (fs/exec.c:1234) [ 575.721122][ T7534] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 575.721231][ T7534] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 575.721470][ T7534] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 575.721614][ T7534] ? __get_task_comm (fs/exec.c:1234) [ 575.721768][ T7534] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 575.721916][ T7534] ? __get_task_comm (fs/exec.c:1234) [ 575.722061][ T7534] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 575.722222][ T7534] ? __get_task_comm (fs/exec.c:1234) [ 575.722369][ T7534] __get_task_comm (fs/exec.c:1234) [ 575.722514][ T7534] ref_tracker_alloc (lib/ref_tracker.c:217) [ 575.722662][ T7534] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 575.722823][ T7534] ? __lock_release (kernel/locking/lockdep.c:5430) [ 575.722967][ T7534] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 575.723144][ T7534] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 575.723288][ T7534] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 575.723526][ T7534] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 575.723674][ T7534] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 575.723828][ T7534] ? __dev_notify_flags (net/core/dev.c:8800) [ 575.723970][ T7534] ? dev_change_flags (net/core/dev.c:8835) [ 575.724112][ T7534] ? do_setlink (net/core/rtnetlink.c:2884) [ 575.724254][ T7534] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 575.724396][ T7534] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 575.724540][ T7534] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 575.724681][ T7534] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 575.724835][ T7534] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 575.724983][ T7534] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 575.725125][ T7534] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 575.725362][ T7534] ? ___sys_sendmsg (net/socket.c:2640) [ 575.725505][ T7534] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 575.725654][ T7534] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 575.725845][ T7534] rt6_disable_ip (net/ipv6/route.c:4910) [ 575.726163][ T7534] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 575.726305][ T7534] ? 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) [ 575.726454][ T7534] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 575.726601][ T7534] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 575.726763][ T7534] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 575.727032][ T7534] addrconf_notify (net/ipv6/addrconf.c:3811) [ 575.727174][ T7534] ? fib_netdev_event (net/ipv4/fib_frontend.c:1520) [ 575.727317][ T7534] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 575.727461][ T7534] __dev_notify_flags (net/core/dev.c:8800) [ 575.727699][ T7534] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 575.727940][ T7534] ? __dev_change_flags (./include/linux/list.h:111 ./include/linux/list.h:215 ./include/linux/list.h:229 net/core/dev.c:1554 net/core/dev.c:8754) [ 575.728171][ T7534] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 575.728408][ T7534] dev_change_flags (net/core/dev.c:8835) [ 575.728804][ T7534] do_setlink (net/core/rtnetlink.c:2884) [ 575.729042][ T7534] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 575.729281][ T7534] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 575.729429][ T7534] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 575.729659][ T7534] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 575.729821][ T7534] ? __kernel_text_address (kernel/extable.c:79) [ 575.729965][ T7534] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 575.730109][ T7534] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 575.730375][ T7534] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 575.730523][ T7534] ? stack_trace_save (kernel/stacktrace.c:123) [ 575.730665][ T7534] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 575.730824][ T7534] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 575.731053][ T7534] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 575.731168][ T7534] ? kasan_save_stack (mm/kasan/common.c:49) [ 575.731313][ T7534] ? kasan_save_stack (mm/kasan/common.c:48) [ 575.731457][ T7534] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 575.731599][ T7534] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 575.731840][ T7534] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 575.731984][ T7534] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 575.732141][ T7534] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 575.732287][ T7534] ? __nla_validate_parse (lib/nlattr.c:619) [ 575.732534][ T7534] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 575.732677][ T7534] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 575.732836][ T7534] ? ___sys_sendmsg (net/socket.c:2640) [ 575.732980][ T7534] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 575.733127][ T7534] ? 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) [ 575.733270][ T7534] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 575.733414][ T7534] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 575.733591][ T7534] ? __create_object (mm/kmemleak.c:756) [ 575.733746][ T7534] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 575.733897][ T7534] rtnl_newlink (net/core/rtnetlink.c:3728) [ 575.734006][ T7534] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 575.734161][ T7534] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 575.734304][ T7534] ? 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) [ 575.734545][ T7534] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 575.734655][ T7534] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 575.734819][ T7534] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 575.734964][ T7534] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 575.735113][ T7534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 575.735256][ T7534] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 575.735403][ T7534] ? 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) [ 575.735545][ T7534] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 575.735698][ T7534] ? 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) [ 575.735931][ T7534] ? 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) [ 575.736083][ T7534] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 575.736227][ T7534] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 575.736378][ T7534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 575.736610][ T7534] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 575.736765][ T7534] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 575.736908][ T7534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 575.737051][ T7534] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 575.737286][ T7534] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 575.737430][ T7534] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 575.737581][ T7534] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 575.737741][ T7534] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 575.738094][ T7534] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 575.738240][ T7534] ___sys_sendmsg (net/socket.c:2640) [ 575.738383][ T7534] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 575.738526][ T7534] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 575.738774][ T7534] ? __lock_release (kernel/locking/lockdep.c:5430) [ 575.738923][ T7534] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 575.739103][ T7534] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 575.739256][ T7534] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 575.739488][ T7534] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 575.739670][ T7534] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 575.739825][ T7534] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 575.739970][ T7534] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 575.740211][ T7534] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 575.740357][ T7534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 575.740543][ T7534] RIP: 0033:0x7fccd24137b7 [ 575.740716][ T7534] 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) [ 575.741316][ T7534] RSP: 002b:00007fff0c0f4f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 575.741532][ T7534] RAX: ffffffffffffffda RBX: 00007fff0c0f5660 RCX: 00007fccd24137b7 [ 575.741852][ T7534] RDX: 0000000000000000 RSI: 00007fff0c0f4fa0 RDI: 0000000000000005 [ 575.742067][ T7534] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 575.742396][ T7534] R10: 00007fccd22d1ef8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add