====================================== | [ 88.655104][ T778] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 88.655373][ T778] | [ 88.655447][ T778] | [ 88.655447][ T778] stack backtrace: [ 88.655841][ T778] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 88.656248][ T778] Call Trace: [ 88.656364][ T778] [ 88.656440][ T778] dump_stack_lvl (lib/dump_stack.c:117) [ 88.656691][ T778] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 88.656839][ T778] ? 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) [ 88.656984][ T778] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 88.657163][ T778] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 88.657307][ T778] ? __bfs (kernel/locking/lockdep.c:1787) [ 88.657420][ T778] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 88.657570][ T778] check_irq_usage (kernel/locking/lockdep.c:2871) [ 88.657717][ T778] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 88.657864][ T778] ? __bfs (kernel/locking/lockdep.c:1787) [ 88.657974][ T778] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 88.658122][ T778] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 88.658268][ T778] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 88.658413][ T778] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 88.658657][ T778] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 88.658804][ T778] check_prev_add (kernel/locking/lockdep.c:3138) [ 88.658950][ T778] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 88.659097][ T778] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 88.659244][ T778] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 88.659354][ T778] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 88.659498][ T778] ? 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) [ 88.659644][ T778] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 88.659755][ T778] __lock_acquire (kernel/locking/lockdep.c:5137) [ 88.659990][ T778] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 88.660139][ T778] ? __get_task_comm (fs/exec.c:1234) [ 88.660285][ T778] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 88.660395][ T778] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 88.660539][ T778] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 88.660777][ T778] ? __get_task_comm (fs/exec.c:1234) [ 88.660922][ T778] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 88.661065][ T778] ? __get_task_comm (fs/exec.c:1234) [ 88.661210][ T778] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 88.661355][ T778] ? __get_task_comm (fs/exec.c:1234) [ 88.661502][ T778] __get_task_comm (fs/exec.c:1234) [ 88.661648][ T778] ref_tracker_alloc (lib/ref_tracker.c:217) [ 88.661794][ T778] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 88.662028][ T778] ? __lock_release (kernel/locking/lockdep.c:5430) [ 88.662173][ T778] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 88.662354][ T778] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 88.662502][ T778] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 88.662736][ T778] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 88.662885][ T778] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 88.663032][ T778] ? __dev_notify_flags (net/core/dev.c:8800) [ 88.663178][ T778] ? dev_change_flags (net/core/dev.c:8835) [ 88.663324][ T778] ? do_setlink (net/core/rtnetlink.c:2884) [ 88.663555][ T778] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 88.663699][ T778] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 88.663843][ T778] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 88.663988][ T778] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 88.664224][ T778] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 88.664368][ T778] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 88.664512][ T778] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 88.664661][ T778] ? ___sys_sendmsg (net/socket.c:2640) [ 88.664894][ T778] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 88.665040][ T778] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 88.665221][ T778] rt6_disable_ip (net/ipv6/route.c:4910) [ 88.665367][ T778] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 88.665599][ T778] ? 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) [ 88.665748][ T778] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 88.665894][ T778] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 88.666041][ T778] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 88.666224][ T778] addrconf_notify (net/ipv6/addrconf.c:3811) [ 88.666370][ T778] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 88.666516][ T778] __dev_notify_flags (net/core/dev.c:8800) [ 88.666662][ T778] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 88.666807][ T778] ? __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) [ 88.666955][ T778] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 88.667102][ T778] dev_change_flags (net/core/dev.c:8835) [ 88.667248][ T778] do_setlink (net/core/rtnetlink.c:2884) [ 88.667393][ T778] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 88.667625][ T778] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 88.667769][ T778] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 88.667913][ T778] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 88.668059][ T778] ? __kernel_text_address (kernel/extable.c:79) [ 88.668292][ T778] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 88.668436][ T778] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 88.668618][ T778] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 88.668766][ T778] ? stack_trace_save (kernel/stacktrace.c:123) [ 88.668999][ T778] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 88.669144][ T778] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 88.669289][ T778] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 88.669403][ T778] ? kasan_save_stack (mm/kasan/common.c:49) [ 88.669641][ T778] ? kasan_save_stack (mm/kasan/common.c:48) [ 88.669788][ T778] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 88.669935][ T778] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 88.670080][ T778] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 88.670227][ T778] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 88.670373][ T778] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 88.670520][ T778] ? validate_nla (lib/nlattr.c:513) [ 88.670666][ T778] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 88.670815][ T778] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 88.671049][ T778] ? ___sys_sendmsg (net/socket.c:2640) [ 88.671197][ T778] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 88.671344][ T778] ? 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) [ 88.671491][ T778] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 88.671725][ T778] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 88.671908][ T778] ? __create_object (mm/kmemleak.c:756) [ 88.672057][ T778] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 88.672205][ T778] rtnl_newlink (net/core/rtnetlink.c:3728) [ 88.672404][ T778] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 88.672567][ T778] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 88.672714][ T778] ? 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) [ 88.672858][ T778] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 88.672970][ T778] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 88.673204][ T778] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 88.673350][ T778] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 88.673495][ T778] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 88.673644][ T778] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 88.673882][ T778] ? 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) [ 88.674029][ T778] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 88.674175][ T778] ? 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) [ 88.674320][ T778] ? 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) [ 88.674553][ T778] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 88.674700][ T778] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 88.674849][ T778] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 88.674995][ T778] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 88.675140][ T778] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 88.675372][ T778] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 88.675515][ T778] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 88.675661][ T778] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 88.675809][ T778] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 88.676039][ T778] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 88.676182][ T778] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 88.676364][ T778] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 88.676511][ T778] ___sys_sendmsg (net/socket.c:2640) [ 88.676747][ T778] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 88.676899][ T778] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 88.677043][ T778] ? __lock_release (kernel/locking/lockdep.c:5430) [ 88.677187][ T778] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 88.677367][ T778] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 88.677512][ T778] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 88.677659][ T778] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 88.677842][ T778] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 88.677988][ T778] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 88.678133][ T778] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 88.678283][ T778] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 88.678427][ T778] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 88.678702][ T778] RIP: 0033:0x7fb9e40417b7 [ 88.678857][ T778] 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) [ 88.679368][ T778] RSP: 002b:00007fff1b544a38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.679594][ T778] RAX: ffffffffffffffda RBX: 00007fff1b545170 RCX: 00007fb9e40417b7 [ 88.679812][ T778] RDX: 0000000000000000 RSI: 00007fff1b544aa0 RDI: 0000000000000005 [ 88.680030][ T778] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 88.680246][ T778] R10: 00007fb9e3eff4a8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add