====================================== | [ 31.221030][ T298] 1 lock held by ip/298: | [ 31.221264][ T298] #0: ffffffffb15bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 31.221730][ T298] | [ 31.221730][ T298] stack backtrace: [ 31.222335][ T298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 31.222750][ T298] Call Trace: [ 31.222901][ T298] [ 31.222998][ T298] dump_stack_lvl (lib/dump_stack.c:122) [ 31.223192][ T298] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 31.223382][ T298] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 31.223692][ T298] 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 [ 31.223961][ T298] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 31.224188][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.224423][ T298] br_add_if (net/bridge/br_if.c:692) bridge [ 31.224645][ T298] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 31.224834][ T298] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 31.225069][ T298] do_setlink (net/core/rtnetlink.c:2907) [ 31.225263][ T298] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 31.225458][ T298] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 31.225659][ T298] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 31.225850][ T298] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 31.226043][ T298] ? __kernel_text_address (kernel/extable.c:79) [ 31.226231][ T298] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 31.226411][ T298] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 31.226649][ T298] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 31.226846][ T298] ? stack_trace_save (kernel/stacktrace.c:123) [ 31.227051][ T298] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 31.227251][ T298] ? __pfx_validate_nla (lib/nlattr.c:396) [ 31.227447][ T298] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 31.227600][ T298] ? kasan_save_stack (mm/kasan/common.c:49) [ 31.227795][ T298] ? __nla_validate_parse (lib/nlattr.c:638) [ 31.227989][ T298] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 31.228182][ T298] ? 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) [ 31.228366][ T298] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 31.228558][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.228803][ T298] ? __create_object (mm/kmemleak.c:751) [ 31.228998][ T298] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 31.229199][ T298] rtnl_newlink (net/core/rtnetlink.c:3744) [ 31.229339][ T298] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 31.229531][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 31.229715][ T298] ? 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) [ 31.229901][ T298] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 31.230047][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 31.230234][ T298] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 31.230420][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 31.230618][ T298] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 31.230823][ T298] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 31.231019][ T298] ? 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) [ 31.231207][ T298] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 31.231405][ T298] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 31.231630][ T298] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 31.231820][ T298] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 31.232015][ T298] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 31.232208][ T298] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 31.232404][ T298] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 31.232602][ T298] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 31.232794][ T298] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 31.232987][ T298] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 31.233222][ T298] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 31.233432][ T298] ___sys_sendmsg (net/socket.c:2653) [ 31.233618][ T298] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 31.233813][ T298] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 31.234009][ T298] ? __lock_release (kernel/locking/lockdep.c:5435) [ 31.234200][ T298] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 31.234442][ T298] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 31.234635][ T298] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 31.234833][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.235065][ T298] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 31.235271][ T298] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 31.235650][ T298] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 31.235845][ T298] ? __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) [ 31.236065][ T298] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 31.236260][ T298] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 31.236494][ T298] RIP: 0033:0x7fda7987b7b7 [ 31.236808][ T298] 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) [ 31.237444][ T298] RSP: 002b:00007ffee441e338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.237845][ T298] RAX: ffffffffffffffda RBX: 00007ffee441ea60 RCX: 00007fda7987b7b7 [ 31.238127][ T298] RDX: 0000000000000000 RSI: 00007ffee441e3a0 RDI: 0000000000000005 [ 31.238410][ T298] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 31.238690][ T298] R10: 000000002bbe6910 R11: 0000000000000246 R12: 0000000000000004 [ 31.238971][ T298] R13: 0000000066bea78f R14: 0000000000496600 R15: 0000000000000000 | [ 31.242600][ T298] 1 lock held by ip/298: | [ 31.242831][ T298] #0: ffffffffb15bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 31.243257][ T298] | [ 31.243257][ T298] stack backtrace: [ 31.243867][ T298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 31.244388][ T298] Call Trace: [ 31.244540][ T298] [ 31.244650][ T298] dump_stack_lvl (lib/dump_stack.c:122) [ 31.244847][ T298] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 31.245042][ T298] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 31.245311][ T298] 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 [ 31.245582][ T298] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 31.245906][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.246146][ T298] br_add_if (net/bridge/br_if.c:692) bridge [ 31.246369][ T298] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 31.246553][ T298] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 31.246791][ T298] do_setlink (net/core/rtnetlink.c:2907) [ 31.246987][ T298] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 31.247182][ T298] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 31.247383][ T298] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 31.247812][ T298] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 31.248010][ T298] ? __kernel_text_address (kernel/extable.c:79) [ 31.248207][ T298] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 31.248404][ T298] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 31.248658][ T298] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 31.248867][ T298] ? stack_trace_save (kernel/stacktrace.c:123) [ 31.249080][ T298] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 31.249408][ T298] ? __pfx_validate_nla (lib/nlattr.c:396) [ 31.249612][ T298] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 31.249770][ T298] ? kasan_save_stack (mm/kasan/common.c:49) [ 31.249971][ T298] ? __nla_validate_parse (lib/nlattr.c:638) [ 31.250185][ T298] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 31.250392][ T298] ? 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) [ 31.250707][ T298] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 31.250909][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.251150][ T298] ? __create_object (mm/kmemleak.c:751) [ 31.251352][ T298] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 31.251679][ T298] rtnl_newlink (net/core/rtnetlink.c:3744) [ 31.251827][ T298] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 31.252147][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 31.252340][ T298] ? 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) [ 31.252533][ T298] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 31.252680][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 31.252870][ T298] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 31.253075][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 31.253279][ T298] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 31.253577][ T298] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 31.253898][ T298] ? 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) [ 31.254086][ T298] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 31.254299][ T298] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 31.254487][ T298] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 31.254679][ T298] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 31.254877][ T298] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 31.255181][ T298] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 31.255377][ T298] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 31.255581][ T298] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 31.255776][ T298] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 31.255970][ T298] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 31.256300][ T298] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 31.256620][ T298] ___sys_sendmsg (net/socket.c:2653) [ 31.256820][ T298] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 31.257012][ T298] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 31.257298][ T298] ? __lock_release (kernel/locking/lockdep.c:5435) [ 31.257483][ T298] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 31.257728][ T298] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 31.257918][ T298] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 31.258235][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.258471][ T298] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 31.258679][ T298] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 31.258876][ T298] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 31.259179][ T298] ? __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) [ 31.259394][ T298] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 31.259589][ T298] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 31.259935][ T298] RIP: 0033:0x7fda7987b7b7 [ 31.260136][ T298] 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) [ 31.260780][ T298] RSP: 002b:00007ffee441e338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.261191][ T298] RAX: ffffffffffffffda RBX: 00007ffee441ea60 RCX: 00007fda7987b7b7 [ 31.261472][ T298] RDX: 0000000000000000 RSI: 00007ffee441e3a0 RDI: 0000000000000005 [ 31.261762][ T298] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 31.262156][ T298] R10: 000000002bbe6910 R11: 0000000000000246 R12: 0000000000000004 [ 31.262450][ T298] R13: 0000000066bea78f R14: 0000000000496600 R15: 0000000000000000 | [ 31.265016][ T298] 1 lock held by ip/298: | [ 31.265161][ T298] #0: ffffffffb15bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 31.265518][ T298] | [ 31.265518][ T298] stack backtrace: [ 31.266047][ T298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 31.266455][ T298] Call Trace: [ 31.266604][ T298] [ 31.266706][ T298] dump_stack_lvl (lib/dump_stack.c:122) [ 31.266899][ T298] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 31.267091][ T298] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 31.267570][ T298] 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 [ 31.267833][ T298] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 31.268054][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.268380][ T298] br_add_if (net/bridge/br_if.c:692) bridge [ 31.268600][ T298] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 31.268780][ T298] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 31.269012][ T298] do_setlink (net/core/rtnetlink.c:2907) [ 31.269300][ T298] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 31.269496][ T298] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 31.269679][ T298] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 31.269868][ T298] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 31.270058][ T298] ? __kernel_text_address (kernel/extable.c:79) [ 31.270349][ T298] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 31.270540][ T298] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 31.270775][ T298] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 31.270983][ T298] ? stack_trace_save (kernel/stacktrace.c:123) [ 31.271288][ T298] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 31.271480][ T298] ? __pfx_validate_nla (lib/nlattr.c:396) [ 31.271681][ T298] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 31.271820][ T298] ? kasan_save_stack (mm/kasan/common.c:49) [ 31.272015][ T298] ? __nla_validate_parse (lib/nlattr.c:638) [ 31.272231][ T298] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 31.272429][ T298] ? 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) [ 31.272753][ T298] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 31.272967][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.273212][ T298] ? __create_object (mm/kmemleak.c:751) [ 31.273407][ T298] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 31.273607][ T298] rtnl_newlink (net/core/rtnetlink.c:3744) [ 31.273766][ T298] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 31.273968][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 31.274152][ T298] ? 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) [ 31.274337][ T298] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 31.274613][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 31.274820][ T298] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 31.275009][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 31.275211][ T298] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 31.275414][ T298] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 31.275727][ T298] ? 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) [ 31.275923][ T298] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 31.276112][ T298] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 31.276320][ T298] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 31.276524][ T298] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 31.276717][ T298] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 31.276909][ T298] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 31.277203][ T298] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 31.277396][ T298] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 31.277708][ T298] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 31.277902][ T298] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 31.278140][ T298] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 31.278349][ T298] ___sys_sendmsg (net/socket.c:2653) [ 31.278552][ T298] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 31.278745][ T298] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 31.278945][ T298] ? __lock_release (kernel/locking/lockdep.c:5435) [ 31.279139][ T298] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 31.279503][ T298] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 31.279713][ T298] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 31.279904][ T298] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 31.280154][ T298] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 31.280469][ T298] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 31.280661][ T298] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 31.280843][ T298] ? __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) [ 31.281054][ T298] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 31.281243][ T298] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 31.281484][ T298] RIP: 0033:0x7fda7987b7b7 [ 31.281831][ T298] 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) [ 31.282489][ T298] RSP: 002b:00007ffee441e338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.282773][ T298] RAX: ffffffffffffffda RBX: 00007ffee441ea60 RCX: 00007fda7987b7b7 [ 31.283058][ T298] RDX: 0000000000000000 RSI: 00007ffee441e3a0 RDI: 0000000000000005 [ 31.283473][ T298] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 31.283756][ T298] R10: 000000002bbe6910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink