====================================== | [ 93.484282][ T488] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 93.484500][ T488] | [ 93.484680][ T488] | [ 93.484680][ T488] stack backtrace: [ 93.485165][ T488] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 93.485634][ T488] Call Trace: [ 93.485771][ T488] [ 93.485861][ T488] dump_stack_lvl (lib/dump_stack.c:117) [ 93.486038][ T488] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 93.486214][ T488] ? 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) [ 93.486480][ T488] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 93.486697][ T488] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 93.486872][ T488] ? __bfs (kernel/locking/lockdep.c:1787) [ 93.487003][ T488] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 93.487267][ T488] check_irq_usage (kernel/locking/lockdep.c:2871) [ 93.487441][ T488] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 93.487612][ T488] ? __bfs (kernel/locking/lockdep.c:1787) [ 93.487741][ T488] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 93.487912][ T488] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 93.488082][ T488] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 93.488255][ T488] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 93.488429][ T488] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 93.488598][ T488] check_prev_add (kernel/locking/lockdep.c:3138) [ 93.488858][ T488] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 93.489028][ T488] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 93.489213][ T488] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 93.489341][ T488] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 93.489598][ T488] ? 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) [ 93.489767][ T488] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 93.489898][ T488] __lock_acquire (kernel/locking/lockdep.c:5137) [ 93.490073][ T488] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 93.490254][ T488] ? __get_task_comm (fs/exec.c:1234) [ 93.490515][ T488] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 93.490803][ T488] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 93.490974][ T488] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 93.491145][ T488] ? __get_task_comm (fs/exec.c:1234) [ 93.491406][ T488] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 93.491574][ T488] ? __get_task_comm (fs/exec.c:1234) [ 93.491749][ T488] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 93.491916][ T488] ? __get_task_comm (fs/exec.c:1234) [ 93.492175][ T488] __get_task_comm (fs/exec.c:1234) [ 93.492345][ T488] ref_tracker_alloc (lib/ref_tracker.c:217) [ 93.492520][ T488] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 93.492690][ T488] ? __lock_release (kernel/locking/lockdep.c:5430) [ 93.492861][ T488] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 93.493164][ T488] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 93.493344][ T488] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 93.493516][ T488] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 93.493701][ T488] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 93.493965][ T488] ? __dev_notify_flags (net/core/dev.c:8800) [ 93.494151][ T488] ? dev_change_flags (net/core/dev.c:8835) [ 93.494325][ T488] ? do_setlink (net/core/rtnetlink.c:2884) [ 93.494497][ T488] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 93.494763][ T488] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 93.494931][ T488] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 93.495107][ T488] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 93.495280][ T488] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 93.495543][ T488] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 93.495716][ T488] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 93.495890][ T488] ? ___sys_sendmsg (net/socket.c:2640) [ 93.496059][ T488] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 93.496411][ T488] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 93.496626][ T488] rt6_disable_ip (net/ipv6/route.c:4910) [ 93.496803][ T488] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 93.496973][ T488] ? 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) [ 93.497238][ T488] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 93.497412][ T488] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 93.497583][ T488] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 93.497802][ T488] addrconf_notify (net/ipv6/addrconf.c:3811) [ 93.498070][ T488] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 93.498257][ T488] __dev_notify_flags (net/core/dev.c:8800) [ 93.498431][ T488] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 93.498601][ T488] ? __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) [ 93.498777][ T488] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 93.498954][ T488] dev_change_flags (net/core/dev.c:8835) [ 93.499128][ T488] do_setlink (net/core/rtnetlink.c:2884) [ 93.499301][ T488] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 93.499473][ T488] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 93.499739][ T488] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 93.499916][ T488] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 93.500091][ T488] ? __kernel_text_address (kernel/extable.c:79) [ 93.500260][ T488] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 93.500522][ T488] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 93.500747][ T488] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 93.500924][ T488] ? stack_trace_save (kernel/stacktrace.c:123) [ 93.501096][ T488] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 93.501355][ T488] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 93.501529][ T488] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 93.501662][ T488] ? kasan_save_stack (mm/kasan/common.c:49) [ 93.501839][ T488] ? kasan_save_stack (mm/kasan/common.c:48) [ 93.502008][ T488] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 93.502320][ T488] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 93.502507][ T488] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 93.502680][ T488] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 93.502850][ T488] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 93.503026][ T488] ? __nla_validate_parse (lib/nlattr.c:619) [ 93.503198][ T488] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 93.503370][ T488] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 93.503543][ T488] ? ___sys_sendmsg (net/socket.c:2640) [ 93.503714][ T488] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 93.503892][ T488] ? 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) [ 93.504069][ T488] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 93.504242][ T488] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 93.504554][ T488] ? __create_object (mm/kmemleak.c:756) [ 93.504727][ T488] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 93.504902][ T488] rtnl_newlink (net/core/rtnetlink.c:3728) [ 93.505032][ T488] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 93.505204][ T488] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 93.505467][ T488] ? 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) [ 93.505643][ T488] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 93.505774][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 93.505949][ T488] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 93.506244][ T488] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 93.506416][ T488] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 93.506589][ T488] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 93.506763][ T488] ? 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) [ 93.506938][ T488] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 93.507122][ T488] ? 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) [ 93.507297][ T488] ? 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) [ 93.507470][ T488] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 93.507656][ T488] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 93.507829][ T488] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 93.508004][ T488] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 93.508181][ T488] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 93.508358][ T488] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 93.508532][ T488] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 93.508704][ T488] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 93.508880][ T488] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 93.509060][ T488] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 93.509231][ T488] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 93.509442][ T488] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 93.509616][ T488] ___sys_sendmsg (net/socket.c:2640) [ 93.509789][ T488] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 93.509961][ T488] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 93.510133][ T488] ? __lock_release (kernel/locking/lockdep.c:5430) [ 93.510309][ T488] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 93.510529][ T488] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 93.510710][ T488] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 93.510884][ T488] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 93.511100][ T488] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 93.511282][ T488] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 93.511451][ T488] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 93.511626][ T488] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 93.511804][ T488] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 93.512019][ T488] RIP: 0033:0x7f84b42537b7 [ 93.512202][ T488] 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) [ 93.512811][ T488] RSP: 002b:00007ffc6214e138 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.513062][ T488] RAX: ffffffffffffffda RBX: 00007ffc6214e860 RCX: 00007f84b42537b7 [ 93.513301][ T488] RDX: 0000000000000000 RSI: 00007ffc6214e1a0 RDI: 0000000000000005 [ 93.513536][ T488] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 93.513775][ T488] R10: 00007f84b4111ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add