====================================== | [ 32.891000][ T306] 1 lock held by ip/306: | [ 32.891128][ T306] #0: ffffffffaedbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 32.891439][ T306] | [ 32.891439][ T306] stack backtrace: [ 32.891894][ T306] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.892251][ T306] Call Trace: [ 32.892380][ T306] [ 32.892467][ T306] dump_stack_lvl (lib/dump_stack.c:122) [ 32.892638][ T306] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 32.892802][ T306] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 32.893083][ T306] 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 [ 32.893325][ T306] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 32.893523][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.893732][ T306] br_add_if (net/bridge/br_if.c:692) bridge [ 32.893928][ T306] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 32.894092][ T306] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 32.894301][ T306] do_setlink (net/core/rtnetlink.c:2907) [ 32.894467][ T306] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 32.894638][ T306] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 32.894805][ T306] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 32.894991][ T306] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 32.895157][ T306] ? __kernel_text_address (kernel/extable.c:79) [ 32.895320][ T306] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 32.895483][ T306] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 32.895693][ T306] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 32.895874][ T306] ? stack_trace_save (kernel/stacktrace.c:123) [ 32.896040][ T306] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 32.896204][ T306] ? __pfx_validate_nla (lib/nlattr.c:396) [ 32.896370][ T306] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.896499][ T306] ? kasan_save_stack (mm/kasan/common.c:49) [ 32.896669][ T306] ? __nla_validate_parse (lib/nlattr.c:638) [ 32.896842][ T306] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 32.897016][ T306] ? 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) [ 32.897187][ T306] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 32.897363][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.897570][ T306] ? __create_object (mm/kmemleak.c:751) [ 32.897738][ T306] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 32.897908][ T306] rtnl_newlink (net/core/rtnetlink.c:3744) [ 32.898034][ T306] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 32.898203][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.898370][ T306] ? 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) [ 32.898537][ T306] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.898674][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 32.898842][ T306] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 32.899007][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.899233][ T306] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 32.899449][ T306] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 32.899647][ T306] ? 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) [ 32.899845][ T306] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 32.900048][ T306] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 32.900251][ T306] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.900453][ T306] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 32.900655][ T306] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 32.900850][ T306] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 32.901053][ T306] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 32.901259][ T306] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 32.901457][ T306] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 32.901651][ T306] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 32.901900][ T306] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 32.902111][ T306] ___sys_sendmsg (net/socket.c:2653) [ 32.902312][ T306] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 32.902510][ T306] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.902714][ T306] ? __lock_release (kernel/locking/lockdep.c:5435) [ 32.902908][ T306] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 32.903154][ T306] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 32.903354][ T306] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.903566][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.903814][ T306] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.904027][ T306] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 32.904216][ T306] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 32.904400][ T306] ? __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) [ 32.904603][ T306] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.904773][ T306] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 32.905014][ T306] RIP: 0033:0x7f23166517b7 [ 32.905213][ T306] 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) [ 32.905795][ T306] RSP: 002b:00007ffe666153e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.906049][ T306] RAX: ffffffffffffffda RBX: 00007ffe66615b10 RCX: 00007f23166517b7 [ 32.906340][ T306] RDX: 0000000000000000 RSI: 00007ffe66615450 RDI: 0000000000000005 [ 32.906616][ T306] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 32.906860][ T306] R10: 0000000005401910 R11: 0000000000000246 R12: 0000000000000004 [ 32.907127][ T306] R13: 0000000066bea1f7 R14: 0000000000496600 R15: 0000000000000000 | [ 32.909618][ T306] 1 lock held by ip/306: | [ 32.909754][ T306] #0: ffffffffaedbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 32.910074][ T306] | [ 32.910074][ T306] stack backtrace: [ 32.910610][ T306] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.910977][ T306] Call Trace: [ 32.911106][ T306] [ 32.911198][ T306] dump_stack_lvl (lib/dump_stack.c:122) [ 32.911373][ T306] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 32.911551][ T306] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 32.911808][ T306] 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 [ 32.912075][ T306] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 32.912306][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.912516][ T306] br_add_if (net/bridge/br_if.c:692) bridge [ 32.912727][ T306] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 32.912915][ T306] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 32.913151][ T306] do_setlink (net/core/rtnetlink.c:2907) [ 32.913322][ T306] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 32.913523][ T306] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 32.913689][ T306] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 32.913878][ T306] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 32.914056][ T306] ? __kernel_text_address (kernel/extable.c:79) [ 32.914220][ T306] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 32.914385][ T306] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 32.914594][ T306] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 32.914780][ T306] ? stack_trace_save (kernel/stacktrace.c:123) [ 32.914964][ T306] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 32.915134][ T306] ? __pfx_validate_nla (lib/nlattr.c:396) [ 32.915307][ T306] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.915437][ T306] ? kasan_save_stack (mm/kasan/common.c:49) [ 32.915607][ T306] ? __nla_validate_parse (lib/nlattr.c:638) [ 32.915778][ T306] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 32.915961][ T306] ? 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) [ 32.916140][ T306] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 32.916311][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.916518][ T306] ? __create_object (mm/kmemleak.c:751) [ 32.916695][ T306] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 32.916882][ T306] rtnl_newlink (net/core/rtnetlink.c:3744) [ 32.917009][ T306] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 32.917179][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.917347][ T306] ? 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) [ 32.917515][ T306] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.917646][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 32.917811][ T306] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 32.917976][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.918148][ T306] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 32.918329][ T306] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 32.918494][ T306] ? 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) [ 32.918665][ T306] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 32.918833][ T306] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 32.919000][ T306] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.919168][ T306] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 32.919342][ T306] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 32.919526][ T306] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 32.919699][ T306] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 32.919870][ T306] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 32.920036][ T306] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 32.920208][ T306] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 32.920411][ T306] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 32.920587][ T306] ___sys_sendmsg (net/socket.c:2653) [ 32.920797][ T306] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 32.920965][ T306] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.921136][ T306] ? __lock_release (kernel/locking/lockdep.c:5435) [ 32.921299][ T306] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 32.921502][ T306] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 32.921669][ T306] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.921847][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.922053][ T306] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.922232][ T306] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 32.922397][ T306] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 32.922563][ T306] ? __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) [ 32.922751][ T306] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.922919][ T306] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 32.923128][ T306] RIP: 0033:0x7f23166517b7 [ 32.923309][ T306] 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) [ 32.923885][ T306] RSP: 002b:00007ffe666153e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.924136][ T306] RAX: ffffffffffffffda RBX: 00007ffe66615b10 RCX: 00007f23166517b7 [ 32.924383][ T306] RDX: 0000000000000000 RSI: 00007ffe66615450 RDI: 0000000000000005 [ 32.924628][ T306] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 32.925106][ T306] R10: 0000000005401910 R11: 0000000000000246 R12: 0000000000000004 [ 32.925352][ T306] R13: 0000000066bea1f7 R14: 0000000000496600 R15: 0000000000000000 | [ 32.927787][ T306] 1 lock held by ip/306: | [ 32.927933][ T306] #0: ffffffffaedbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 32.928501][ T306] | [ 32.928501][ T306] stack backtrace: [ 32.928949][ T306] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.929316][ T306] Call Trace: [ 32.929442][ T306] [ 32.929537][ T306] dump_stack_lvl (lib/dump_stack.c:122) [ 32.929705][ T306] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 32.929869][ T306] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 32.930210][ T306] 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 [ 32.930451][ T306] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 32.930653][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.930856][ T306] br_add_if (net/bridge/br_if.c:692) bridge [ 32.931058][ T306] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 32.931220][ T306] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 32.931425][ T306] do_setlink (net/core/rtnetlink.c:2907) [ 32.931600][ T306] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 32.931765][ T306] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 32.931928][ T306] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 32.932091][ T306] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 32.932258][ T306] ? __kernel_text_address (kernel/extable.c:79) [ 32.932532][ T306] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 32.932695][ T306] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 32.932904][ T306] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 32.933086][ T306] ? stack_trace_save (kernel/stacktrace.c:123) [ 32.933377][ T306] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 32.933547][ T306] ? __pfx_validate_nla (lib/nlattr.c:396) [ 32.933711][ T306] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.933889][ T306] ? kasan_save_stack (mm/kasan/common.c:49) [ 32.934074][ T306] ? __nla_validate_parse (lib/nlattr.c:638) [ 32.934346][ T306] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 32.934516][ T306] ? 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) [ 32.934680][ T306] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 32.934875][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.935081][ T306] ? __create_object (mm/kmemleak.c:751) [ 32.935278][ T306] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 32.935455][ T306] rtnl_newlink (net/core/rtnetlink.c:3744) [ 32.935588][ T306] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 32.935755][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.935916][ T306] ? 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) [ 32.936078][ T306] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 32.936216][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 32.936385][ T306] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 32.936645][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 32.936809][ T306] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 32.937002][ T306] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 32.937172][ T306] ? 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) [ 32.937437][ T306] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 32.937603][ T306] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 32.937771][ T306] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.937939][ T306] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 32.938211][ T306] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 32.938373][ T306] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 32.938545][ T306] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 32.938721][ T306] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 32.938891][ T306] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 32.939060][ T306] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 32.939260][ T306] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 32.939434][ T306] ___sys_sendmsg (net/socket.c:2653) [ 32.939600][ T306] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 32.939858][ T306] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 32.940023][ T306] ? __lock_release (kernel/locking/lockdep.c:5435) [ 32.940192][ T306] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 32.940395][ T306] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 32.940654][ T306] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.940832][ T306] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 32.941037][ T306] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.941209][ T306] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 32.941470][ T306] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 32.941636][ T306] ? __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) [ 32.941820][ T306] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.941989][ T306] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 32.942190][ T306] RIP: 0033:0x7f23166517b7 [ 32.942365][ T306] 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) [ 32.943033][ T306] RSP: 002b:00007ffe666153e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.943285][ T306] RAX: ffffffffffffffda RBX: 00007ffe66615b10 RCX: 00007f23166517b7 [ 32.943535][ T306] RDX: 0000000000000000 RSI: 00007ffe66615450 RDI: 0000000000000005 [ 32.943885][ T306] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 32.944125][ T306] R10: 0000000005401910 R11: 0000000000000246 R12: 0000000000000004 [ 32.944471][ T306] R13: 0000000066bea1f7 R14: 0000000000496600 R15: 0000000000000000 | [ 33.728339][ T311] 1 lock held by bridge/311: | [ 33.728510][ T311] #0: ffffffffaedbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.728830][ T311] | [ 33.728830][ T311] stack backtrace: [ 33.729305][ T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.729689][ T311] Call Trace: [ 33.729826][ T311] [ 33.729914][ T311] dump_stack_lvl (lib/dump_stack.c:122) [ 33.730084][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.730267][ T311] br_get_link_af_size_filtered (net/bridge/br_private.h:1605 net/bridge/br_private.h:1602 net/bridge/br_netlink.c:110) bridge [ 33.730539][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.730746][ T311] br_setlink (net/bridge/br_netlink.c:669 net/bridge/br_netlink.c:1136) bridge [ 33.730941][ T311] ? __pfx_br_setlink (net/bridge/br_netlink.c:1085) bridge [ 33.731138][ T311] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) [ 33.731300][ T311] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) [ 33.731463][ T311] ? 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) [ 33.731643][ T311] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:129) [ 33.731814][ T311] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:104) [ 33.732014][ T311] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) [ 33.732175][ T311] ? lock_acquire (kernel/locking/lockdep.c:5732) [ 33.732340][ T311] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) [ 33.732504][ T311] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) [ 33.732692][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.732857][ T311] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) [ 33.733027][ T311] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) [ 33.733188][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.733349][ T311] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) [ 33.733514][ T311] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 33.733691][ T311] rtnl_bridge_setlink (net/core/rtnetlink.c:5225) [ 33.733856][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.734024][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.734190][ T311] ? 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) [ 33.734362][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.734492][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.734669][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.734850][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.735020][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.735201][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.735365][ T311] ? 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) [ 33.735541][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.735716][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.735883][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.736054][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.736223][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.736385][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.736567][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.736740][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.736912][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.737097][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.737313][ T311] ? 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) [ 33.737482][ T311] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3758 kernel/locking/lockdep.c:3781 kernel/locking/lockdep.c:3836) [ 33.737682][ T311] ___sys_sendmsg (net/socket.c:2653) [ 33.737848][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.738029][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.738203][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.738395][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.738585][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.738757][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.738936][ T311] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 33.739107][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.739286][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.739473][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.739666][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.739888][ T311] RIP: 0033:0x7ff2c86ad7b7 [ 33.740059][ T311] 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) [ 33.740728][ T311] RSP: 002b:00007ffd796906d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.740981][ T311] RAX: ffffffffffffffda RBX: 000000000000ffff RCX: 00007ff2c86ad7b7 [ 33.741228][ T311] RDX: 0000000000000000 RSI: 00007ffd79690740 RDI: 0000000000000005 [ 33.741473][ T311] RBP: 00007ffd79690830 R08: 0000000000000034 R09: 0000000000000000 [ 33.741749][ T311] R10: 00007ff2c8566708 R11: 0000000000000246 R12: 000000000000000a Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_setlink:rtnl_bridge_setlink lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink