====================================== | [ 33.222541][ T307] 1 lock held by ip/307: | [ 33.222671][ T307] #0: ffffffff9fdbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.222988][ T307] | [ 33.222988][ T307] stack backtrace: [ 33.223471][ T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.223843][ T307] Call Trace: [ 33.223977][ T307] [ 33.224066][ T307] dump_stack_lvl (lib/dump_stack.c:122) [ 33.224241][ T307] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.224409][ T307] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 33.224674][ T307] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 33.225076][ T307] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.225275][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.225488][ T307] br_add_if (net/bridge/br_if.c:692) bridge [ 33.225796][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.225965][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 33.226181][ T307] do_setlink (net/core/rtnetlink.c:2907) [ 33.226350][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.226525][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.226691][ T307] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.226855][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.227024][ T307] ? __kernel_text_address (kernel/extable.c:79) [ 33.227197][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.227367][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.227574][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.227760][ T307] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.227930][ T307] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.228102][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.228274][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.228406][ T307] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.228681][ T307] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.228861][ T307] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.229030][ T307] ? 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:227) [ 33.229201][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.229383][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.229600][ T307] ? __create_object (mm/kmemleak.c:751) [ 33.229778][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.229955][ T307] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.230092][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.230359][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.230525][ T307] ? 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:227) [ 33.230695][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.230832][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.231212][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.231389][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.231559][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.231743][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.231929][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 33.232099][ T307] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.232375][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.232543][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.232714][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.232884][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.233048][ T307] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.233318][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.233506][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.233687][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.233858][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.234168][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.234348][ T307] ___sys_sendmsg (net/socket.c:2653) [ 33.234517][ T307] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.234683][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.234862][ T307] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.235030][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.235335][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.235509][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.235694][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.235903][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.236174][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.236342][ T307] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.236515][ T307] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.236706][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.236969][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.237181][ T307] RIP: 0033:0x7f79fc0657b7 [ 33.237361][ T307] 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) [ 33.238052][ T307] RSP: 002b:00007ffcba5308f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.238312][ T307] RAX: ffffffffffffffda RBX: 00007ffcba531020 RCX: 00007f79fc0657b7 [ 33.238674][ T307] RDX: 0000000000000000 RSI: 00007ffcba530960 RDI: 0000000000000005 [ 33.238925][ T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.239174][ T307] R10: 000000002bd0f910 R11: 0000000000000246 R12: 0000000000000004 [ 33.239431][ T307] R13: 0000000066be9f07 R14: 0000000000496600 R15: 0000000000000000 | [ 33.242757][ T307] 1 lock held by ip/307: | [ 33.242897][ T307] #0: ffffffff9fdbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.243233][ T307] | [ 33.243233][ T307] stack backtrace: [ 33.243723][ T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.244114][ T307] Call Trace: [ 33.244253][ T307] [ 33.244352][ T307] dump_stack_lvl (lib/dump_stack.c:122) [ 33.244634][ T307] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.244804][ T307] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 33.245054][ T307] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 33.245301][ T307] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.245497][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.245718][ T307] br_add_if (net/bridge/br_if.c:692) bridge [ 33.245926][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.246101][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 33.246314][ T307] do_setlink (net/core/rtnetlink.c:2907) [ 33.246495][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.246664][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.246838][ T307] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.247128][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.247306][ T307] ? __kernel_text_address (kernel/extable.c:79) [ 33.247474][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.247660][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.247970][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.248163][ T307] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.248342][ T307] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.248509][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.248685][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.248817][ T307] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.249092][ T307] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.249265][ T307] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.249440][ T307] ? 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:227) [ 33.249608][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.249782][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.249995][ T307] ? __create_object (mm/kmemleak.c:751) [ 33.250264][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.250551][ T307] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.250680][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.250853][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.251031][ T307] ? 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:227) [ 33.251205][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.251339][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.251509][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.251694][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.251986][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.252176][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.252346][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 33.252517][ T307] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.252688][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.252860][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.253138][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.253313][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.253480][ T307] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.253657][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.253835][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.254010][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.254174][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.254484][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.254669][ T307] ___sys_sendmsg (net/socket.c:2653) [ 33.254843][ T307] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.255017][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.255298][ T307] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.255604][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.255818][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.255988][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.256167][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.256384][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.256670][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.256833][ T307] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.257106][ T307] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.257299][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.257573][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.257812][ T307] RIP: 0033:0x7f79fc0657b7 [ 33.257993][ T307] 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) [ 33.258592][ T307] RSP: 002b:00007ffcba5308f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.258857][ T307] RAX: ffffffffffffffda RBX: 00007ffcba531020 RCX: 00007f79fc0657b7 [ 33.259113][ T307] RDX: 0000000000000000 RSI: 00007ffcba530960 RDI: 0000000000000005 [ 33.259384][ T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.259837][ T307] R10: 000000002bd0f910 R11: 0000000000000246 R12: 0000000000000004 [ 33.260102][ T307] R13: 0000000066be9f07 R14: 0000000000496600 R15: 0000000000000000 | [ 33.262751][ T307] 1 lock held by ip/307: | [ 33.262882][ T307] #0: ffffffff9fdbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.263186][ T307] | [ 33.263186][ T307] stack backtrace: [ 33.263772][ T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.264148][ T307] Call Trace: [ 33.264283][ T307] [ 33.264376][ T307] dump_stack_lvl (lib/dump_stack.c:122) [ 33.264550][ T307] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.264719][ T307] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 33.264965][ T307] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge [ 33.265212][ T307] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.265412][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.265623][ T307] br_add_if (net/bridge/br_if.c:692) bridge [ 33.265845][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.266117][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 33.266332][ T307] do_setlink (net/core/rtnetlink.c:2907) [ 33.266499][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.266674][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.266944][ T307] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.267111][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.267277][ T307] ? __kernel_text_address (kernel/extable.c:79) [ 33.267442][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.267709][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.267916][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.268093][ T307] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.268262][ T307] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.268432][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.268598][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.268731][ T307] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.268902][ T307] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.269076][ T307] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.269559][ T307] ? 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:227) [ 33.269727][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.269905][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.270117][ T307] ? __create_object (mm/kmemleak.c:751) [ 33.270384][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.270565][ T307] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.270795][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.270971][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.271136][ T307] ? 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:227) [ 33.271311][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.271445][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.271716][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.271904][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.272228][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.272454][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.272637][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 33.272820][ T307] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.273009][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.273191][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.273381][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.273566][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.273858][ T307] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.274043][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.274230][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.274419][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.274704][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.274929][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.275120][ T307] ___sys_sendmsg (net/socket.c:2653) [ 33.275313][ T307] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.275603][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.275786][ T307] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.275954][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.276180][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.276354][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.276532][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.276750][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.276927][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.277097][ T307] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.277268][ T307] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.277461][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.277630][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.277852][ T307] RIP: 0033:0x7f79fc0657b7 [ 33.278028][ T307] 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) [ 33.278612][ T307] RSP: 002b:00007ffcba5308f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.278870][ T307] RAX: ffffffffffffffda RBX: 00007ffcba531020 RCX: 00007f79fc0657b7 [ 33.279116][ T307] RDX: 0000000000000000 RSI: 00007ffcba530960 RDI: 0000000000000005 [ 33.279374][ T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.279628][ T307] R10: 000000002bd0f910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink