====================================== | [ 29.204620][ T274] 1 lock held by ip/274: | [ 29.204768][ T274] #0: ffffffffb69bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 29.205109][ T274] | [ 29.205109][ T274] stack backtrace: [ 29.205604][ T274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 29.206007][ T274] Call Trace: [ 29.206152][ T274] [ 29.206241][ T274] dump_stack_lvl (lib/dump_stack.c:122) [ 29.206443][ T274] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 29.206618][ T274] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 29.206908][ T274] 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 [ 29.207213][ T274] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 29.207487][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.207722][ T274] br_add_if (net/bridge/br_if.c:692) bridge [ 29.207937][ T274] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 29.208108][ T274] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 29.208344][ T274] do_setlink (net/core/rtnetlink.c:2907) [ 29.208522][ T274] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 29.208713][ T274] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 29.208922][ T274] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 29.209097][ T274] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 29.209322][ T274] ? __kernel_text_address (kernel/extable.c:79) [ 29.209494][ T274] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 29.209700][ T274] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 29.209950][ T274] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 29.210146][ T274] ? stack_trace_save (kernel/stacktrace.c:123) [ 29.210339][ T274] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 29.210506][ T274] ? __pfx_validate_nla (lib/nlattr.c:396) [ 29.210676][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 29.210826][ T274] ? kasan_save_stack (mm/kasan/common.c:49) [ 29.211086][ T274] ? __nla_validate_parse (lib/nlattr.c:638) [ 29.211361][ T274] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 29.211541][ T274] ? 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) [ 29.211723][ T274] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 29.211900][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.212112][ T274] ? __create_object (mm/kmemleak.c:751) [ 29.212300][ T274] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 29.212475][ T274] rtnl_newlink (net/core/rtnetlink.c:3744) [ 29.212604][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 29.212776][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 29.212975][ T274] ? 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) [ 29.213169][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 29.213304][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 29.213482][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 29.213653][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 29.213821][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 29.214030][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 29.214220][ T274] ? 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) [ 29.214392][ T274] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 29.214590][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 29.214763][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 29.214950][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 29.215143][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 29.215318][ T274] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 29.215494][ T274] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 29.215678][ T274] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 29.215856][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 29.216029][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 29.216286][ T274] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 29.216472][ T274] ___sys_sendmsg (net/socket.c:2653) [ 29.216651][ T274] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 29.216828][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 29.217007][ T274] ? __lock_release (kernel/locking/lockdep.c:5435) [ 29.217194][ T274] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 29.217412][ T274] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 29.217600][ T274] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 29.217781][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.218001][ T274] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 29.218199][ T274] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 29.218367][ T274] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 29.218549][ T274] ? __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) [ 29.218743][ T274] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 29.218934][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 29.219164][ T274] RIP: 0033:0x7fdd30c977b7 [ 29.219349][ T274] 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) [ 29.219954][ T274] RSP: 002b:00007ffe503b7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.220238][ T274] RAX: ffffffffffffffda RBX: 00007ffe503b8200 RCX: 00007fdd30c977b7 [ 29.220513][ T274] RDX: 0000000000000000 RSI: 00007ffe503b7b40 RDI: 0000000000000005 [ 29.220783][ T274] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 29.221041][ T274] R10: 0000000003ec7910 R11: 0000000000000246 R12: 0000000000000004 [ 29.221351][ T274] R13: 0000000066bea7c7 R14: 0000000000496600 R15: 0000000000000000 | [ 29.223455][ T274] 1 lock held by ip/274: | [ 29.223589][ T274] #0: ffffffffb69bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 29.223897][ T274] | [ 29.223897][ T274] stack backtrace: [ 29.224397][ T274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 29.224768][ T274] Call Trace: [ 29.224901][ T274] [ 29.224995][ T274] dump_stack_lvl (lib/dump_stack.c:122) [ 29.225185][ T274] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 29.225351][ T274] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 29.225613][ T274] 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 [ 29.225867][ T274] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 29.226064][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.226298][ T274] br_add_if (net/bridge/br_if.c:692) bridge [ 29.226514][ T274] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 29.226699][ T274] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 29.226926][ T274] do_setlink (net/core/rtnetlink.c:2907) [ 29.227108][ T274] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 29.227314][ T274] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 29.227485][ T274] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 29.227675][ T274] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 29.227851][ T274] ? __kernel_text_address (kernel/extable.c:79) [ 29.228031][ T274] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 29.228221][ T274] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 29.228649][ T274] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 29.228835][ T274] ? stack_trace_save (kernel/stacktrace.c:123) [ 29.229020][ T274] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 29.229201][ T274] ? __pfx_validate_nla (lib/nlattr.c:396) [ 29.229375][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 29.229511][ T274] ? kasan_save_stack (mm/kasan/common.c:49) [ 29.229687][ T274] ? __nla_validate_parse (lib/nlattr.c:638) [ 29.229865][ T274] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 29.230157][ T274] ? 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) [ 29.230341][ T274] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 29.230526][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.230743][ T274] ? __create_object (mm/kmemleak.c:751) [ 29.231014][ T274] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 29.231205][ T274] rtnl_newlink (net/core/rtnetlink.c:3744) [ 29.231334][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 29.231516][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 29.231683][ T274] ? 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) [ 29.231956][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 29.232086][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 29.232283][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 29.232453][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 29.232641][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 29.232826][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 29.232999][ T274] ? 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) [ 29.233180][ T274] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 29.233459][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 29.233637][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 29.233814][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 29.234006][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 29.234184][ T274] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 29.234458][ T274] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 29.234640][ T274] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 29.234811][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 29.234982][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 29.235218][ T274] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 29.235409][ T274] ___sys_sendmsg (net/socket.c:2653) [ 29.235602][ T274] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 29.235779][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 29.235974][ T274] ? __lock_release (kernel/locking/lockdep.c:5435) [ 29.236173][ T274] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 29.236407][ T274] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 29.236591][ T274] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 29.236887][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.237118][ T274] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 29.237370][ T274] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 29.237628][ T274] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 29.238075][ T274] ? __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) [ 29.238420][ T274] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 29.238710][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 29.239055][ T274] RIP: 0033:0x7fdd30c977b7 [ 29.239512][ T274] 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) [ 29.240171][ T274] RSP: 002b:00007ffe503b7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.240522][ T274] RAX: ffffffffffffffda RBX: 00007ffe503b8200 RCX: 00007fdd30c977b7 [ 29.240899][ T274] RDX: 0000000000000000 RSI: 00007ffe503b7b40 RDI: 0000000000000005 [ 29.241656][ T274] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 29.242080][ T274] R10: 0000000003ec7910 R11: 0000000000000246 R12: 0000000000000004 [ 29.242483][ T274] R13: 0000000066bea7c7 R14: 0000000000496600 R15: 0000000000000000 | [ 29.245595][ T274] 1 lock held by ip/274: | [ 29.245724][ T274] #0: ffffffffb69bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 29.246138][ T274] | [ 29.246138][ T274] stack backtrace: [ 29.246701][ T274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 29.247074][ T274] Call Trace: [ 29.247215][ T274] [ 29.247413][ T274] dump_stack_lvl (lib/dump_stack.c:122) [ 29.247589][ T274] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 29.247753][ T274] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 29.247994][ T274] 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 [ 29.248243][ T274] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 29.248439][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.248753][ T274] br_add_if (net/bridge/br_if.c:692) bridge [ 29.248956][ T274] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 29.249127][ T274] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 29.249342][ T274] do_setlink (net/core/rtnetlink.c:2907) [ 29.249609][ T274] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 29.249779][ T274] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 29.249946][ T274] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 29.250116][ T274] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 29.250395][ T274] ? __kernel_text_address (kernel/extable.c:79) [ 29.250560][ T274] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 29.250725][ T274] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 29.250937][ T274] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 29.251123][ T274] ? stack_trace_save (kernel/stacktrace.c:123) [ 29.251291][ T274] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 29.251560][ T274] ? __pfx_validate_nla (lib/nlattr.c:396) [ 29.251729][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 29.251969][ T274] ? kasan_save_stack (mm/kasan/common.c:49) [ 29.252246][ T274] ? __nla_validate_parse (lib/nlattr.c:638) [ 29.252420][ T274] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 29.252692][ T274] ? 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) [ 29.252860][ T274] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 29.253031][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.253347][ T274] ? __create_object (mm/kmemleak.c:751) [ 29.253524][ T274] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 29.253803][ T274] rtnl_newlink (net/core/rtnetlink.c:3744) [ 29.254065][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 29.254338][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 29.254503][ T274] ? 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) [ 29.254773][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 29.254906][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 29.255177][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 29.255348][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 29.255619][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 29.255804][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 29.256072][ T274] ? 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) [ 29.256245][ T274] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 29.256522][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 29.256692][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 29.256971][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 29.257144][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 29.257309][ T274] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 29.257486][ T274] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 29.257760][ T274] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 29.257938][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 29.258207][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 29.258413][ T274] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 29.258692][ T274] ___sys_sendmsg (net/socket.c:2653) [ 29.258862][ T274] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 29.259031][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 29.259214][ T274] ? __lock_release (kernel/locking/lockdep.c:5435) [ 29.259482][ T274] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 29.259689][ T274] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 29.259864][ T274] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 29.260042][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 29.260361][ T274] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 29.260538][ T274] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 29.260708][ T274] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 29.260880][ T274] ? __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) [ 29.261070][ T274] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 29.261346][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 29.261557][ T274] RIP: 0033:0x7fdd30c977b7 [ 29.261732][ T274] 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) [ 29.262309][ T274] RSP: 002b:00007ffe503b7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.262565][ T274] RAX: ffffffffffffffda RBX: 00007ffe503b8200 RCX: 00007fdd30c977b7 [ 29.262816][ T274] RDX: 0000000000000000 RSI: 00007ffe503b7b40 RDI: 0000000000000005 [ 29.263066][ T274] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 29.263318][ T274] R10: 0000000003ec7910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink