====================================== | [ 32.754932][ T308] 1 lock held by ip/308: | [ 32.755064][ T308] #0: ffffffffbbfbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 32.755393][ T308] | [ 32.755393][ T308] stack backtrace: [ 32.755883][ T308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.756267][ T308] Call Trace: [ 32.756402][ T308] [ 32.756493][ T308] dump_stack_lvl (lib/dump_stack.c:122) [ 32.756676][ T308] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 32.756849][ T308] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 32.757141][ T308] 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 [ 32.757389][ T308] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 32.757595][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.757808][ T308] br_add_if (net/bridge/br_if.c:692) bridge [ 32.758012][ T308] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 32.758192][ T308] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 32.758412][ T308] do_setlink (net/core/rtnetlink.c:2907) [ 32.758604][ T308] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 32.758802][ T308] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 32.758990][ T308] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 32.759157][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 32.759339][ T308] ? __kernel_text_address (kernel/extable.c:79) [ 32.759516][ T308] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 32.759686][ T308] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 32.759899][ T308] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 32.760082][ T308] ? stack_trace_save (kernel/stacktrace.c:123) [ 32.760256][ T308] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 32.760427][ T308] ? __pfx_validate_nla (lib/nlattr.c:396) [ 32.760611][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.760745][ T308] ? kasan_save_stack (mm/kasan/common.c:49) [ 32.760937][ T308] ? __nla_validate_parse (lib/nlattr.c:638) [ 32.761113][ T308] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 32.761309][ T308] ? 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) [ 32.761484][ T308] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 32.761668][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.761893][ T308] ? __create_object (mm/kmemleak.c:751) [ 32.762070][ T308] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 32.762266][ T308] rtnl_newlink (net/core/rtnetlink.c:3744) [ 32.762397][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 32.762572][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.762739][ T308] ? 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) [ 32.762910][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.763051][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 32.763237][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 32.763414][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.763592][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 32.763776][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 32.763948][ T308] ? 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) [ 32.764119][ T308] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 32.764295][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 32.764471][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.764654][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 32.764830][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 32.764995][ T308] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 32.765179][ T308] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 32.765375][ T308] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 32.765551][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 32.765727][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 32.765951][ T308] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 32.766134][ T308] ___sys_sendmsg (net/socket.c:2653) [ 32.766311][ T308] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 32.766482][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.766670][ T308] ? __lock_release (kernel/locking/lockdep.c:5435) [ 32.766836][ T308] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 32.767060][ T308] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 32.767229][ T308] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.767407][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.767614][ T308] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.767793][ T308] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 32.767959][ T308] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 32.768127][ T308] ? __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) [ 32.768317][ T308] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.768501][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 32.768718][ T308] RIP: 0033:0x7fefd17207b7 [ 32.768903][ T308] 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) [ 32.769509][ T308] RSP: 002b:00007ffe70c2bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.769783][ T308] RAX: ffffffffffffffda RBX: 00007ffe70c2c620 RCX: 00007fefd17207b7 [ 32.770039][ T308] RDX: 0000000000000000 RSI: 00007ffe70c2bf60 RDI: 0000000000000005 [ 32.770293][ T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 32.770540][ T308] R10: 000000001e0c3910 R11: 0000000000000246 R12: 0000000000000004 [ 32.770807][ T308] R13: 0000000066bea491 R14: 0000000000496600 R15: 0000000000000000 | [ 32.773385][ T308] 1 lock held by ip/308: | [ 32.773516][ T308] #0: ffffffffbbfbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 32.773847][ T308] | [ 32.773847][ T308] stack backtrace: [ 32.774310][ T308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.774687][ T308] Call Trace: [ 32.774818][ T308] [ 32.774919][ T308] dump_stack_lvl (lib/dump_stack.c:122) [ 32.775101][ T308] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 32.775278][ T308] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 32.775520][ T308] 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 [ 32.775763][ T308] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 32.775967][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.776177][ T308] br_add_if (net/bridge/br_if.c:692) bridge [ 32.776383][ T308] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 32.776555][ T308] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 32.776771][ T308] do_setlink (net/core/rtnetlink.c:2907) [ 32.776942][ T308] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 32.777113][ T308] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 32.777283][ T308] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 32.777468][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 32.777802][ T308] ? __kernel_text_address (kernel/extable.c:79) [ 32.777972][ T308] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 32.778140][ T308] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 32.778351][ T308] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 32.778630][ T308] ? stack_trace_save (kernel/stacktrace.c:123) [ 32.778804][ T308] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 32.778972][ T308] ? __pfx_validate_nla (lib/nlattr.c:396) [ 32.779143][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.779387][ T308] ? kasan_save_stack (mm/kasan/common.c:49) [ 32.779559][ T308] ? __nla_validate_parse (lib/nlattr.c:638) [ 32.779734][ T308] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 32.779909][ T308] ? 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) [ 32.780179][ T308] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 32.780355][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.780567][ T308] ? __create_object (mm/kmemleak.c:751) [ 32.780744][ T308] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 32.781017][ T308] rtnl_newlink (net/core/rtnetlink.c:3744) [ 32.781155][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 32.781324][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.781491][ T308] ? 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) [ 32.781656][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.781890][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 32.782064][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 32.782240][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.782417][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 32.782715][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 32.782892][ T308] ? 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) [ 32.783056][ T308] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 32.783233][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 32.783794][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.784076][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 32.784252][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 32.784424][ T308] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 32.784596][ T308] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 32.784874][ T308] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 32.785042][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 32.785212][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 32.785418][ T308] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 32.785599][ T308] ___sys_sendmsg (net/socket.c:2653) [ 32.785879][ T308] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 32.786045][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.786218][ T308] ? __lock_release (kernel/locking/lockdep.c:5435) [ 32.786396][ T308] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 32.786601][ T308] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 32.786768][ T308] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.786938][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.787249][ T308] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.787427][ T308] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 32.787596][ T308] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 32.787766][ T308] ? __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) [ 32.788045][ T308] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.788225][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 32.788429][ T308] RIP: 0033:0x7fefd17207b7 [ 32.788612][ T308] 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) [ 32.789312][ T308] RSP: 002b:00007ffe70c2bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.789661][ T308] RAX: ffffffffffffffda RBX: 00007ffe70c2c620 RCX: 00007fefd17207b7 [ 32.789925][ T308] RDX: 0000000000000000 RSI: 00007ffe70c2bf60 RDI: 0000000000000005 [ 32.790170][ T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 32.790525][ T308] R10: 000000001e0c3910 R11: 0000000000000246 R12: 0000000000000004 [ 32.790878][ T308] R13: 0000000066bea491 R14: 0000000000496600 R15: 0000000000000000 | [ 32.793197][ T308] 1 lock held by ip/308: | [ 32.793335][ T308] #0: ffffffffbbfbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 32.793645][ T308] | [ 32.793645][ T308] stack backtrace: [ 32.794217][ T308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.794589][ T308] Call Trace: [ 32.794821][ T308] [ 32.794912][ T308] dump_stack_lvl (lib/dump_stack.c:122) [ 32.795090][ T308] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 32.795251][ T308] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 32.795604][ T308] 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 [ 32.795858][ T308] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 32.796055][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.796279][ T308] br_add_if (net/bridge/br_if.c:692) bridge [ 32.796583][ T308] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 32.796751][ T308] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 32.796975][ T308] do_setlink (net/core/rtnetlink.c:2907) [ 32.797143][ T308] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 32.797429][ T308] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 32.797603][ T308] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 32.797774][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 32.797949][ T308] ? __kernel_text_address (kernel/extable.c:79) [ 32.798125][ T308] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 32.798294][ T308] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 32.798499][ T308] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 32.798697][ T308] ? stack_trace_save (kernel/stacktrace.c:123) [ 32.798973][ T308] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 32.799160][ T308] ? __pfx_validate_nla (lib/nlattr.c:396) [ 32.799542][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.799670][ T308] ? kasan_save_stack (mm/kasan/common.c:49) [ 32.799845][ T308] ? __nla_validate_parse (lib/nlattr.c:638) [ 32.800014][ T308] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 32.800205][ T308] ? 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) [ 32.800381][ T308] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 32.800571][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.800782][ T308] ? __create_object (mm/kmemleak.c:751) [ 32.800952][ T308] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 32.801135][ T308] rtnl_newlink (net/core/rtnetlink.c:3744) [ 32.801268][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 32.801538][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.801708][ T308] ? 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) [ 32.801876][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.802015][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 32.802188][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 32.802462][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.802640][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 32.802821][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 32.802998][ T308] ? 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) [ 32.803174][ T308] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 32.803350][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 32.803524][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.803697][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 32.803985][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 32.804153][ T308] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 32.804320][ T308] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 32.804493][ T308] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 32.804673][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 32.804941][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 32.805144][ T308] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 32.805323][ T308] ___sys_sendmsg (net/socket.c:2653) [ 32.805498][ T308] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 32.805765][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.805945][ T308] ? __lock_release (kernel/locking/lockdep.c:5435) [ 32.806108][ T308] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 32.806329][ T308] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 32.806600][ T308] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.806771][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.806984][ T308] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.807158][ T308] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 32.807427][ T308] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 32.807590][ T308] ? __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) [ 32.807780][ T308] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.807949][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 32.808262][ T308] RIP: 0033:0x7fefd17207b7 [ 32.808434][ T308] 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) [ 32.809138][ T308] RSP: 002b:00007ffe70c2bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.809402][ T308] RAX: ffffffffffffffda RBX: 00007ffe70c2c620 RCX: 00007fefd17207b7 [ 32.809664][ T308] RDX: 0000000000000000 RSI: 00007ffe70c2bf60 RDI: 0000000000000005 [ 32.810035][ T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 32.810293][ T308] R10: 000000001e0c3910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink