====================================== | [ 33.267064][ T302] 1 lock held by ip/302: | [ 33.267207][ T302] #0: ffffffff91dbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.267568][ T302] | [ 33.267568][ T302] stack backtrace: [ 33.268107][ T302] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.268521][ T302] Call Trace: [ 33.268668][ T302] [ 33.268768][ T302] dump_stack_lvl (lib/dump_stack.c:122) [ 33.268967][ T302] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.269160][ T302] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 33.269490][ T302] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 33.269762][ T302] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.269983][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.270225][ T302] br_add_if (net/bridge/br_if.c:692) bridge [ 33.270440][ T302] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.270621][ T302] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 33.270855][ T302] do_setlink (net/core/rtnetlink.c:2907) [ 33.271052][ T302] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.271247][ T302] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.271434][ T302] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.271644][ T302] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.271841][ T302] ? __kernel_text_address (kernel/extable.c:79) [ 33.272037][ T302] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.272229][ T302] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.272482][ T302] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.272680][ T302] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.272879][ T302] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.273077][ T302] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.273276][ T302] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.273425][ T302] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.273641][ T302] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.273840][ T302] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.274051][ T302] ? 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) [ 33.274248][ T302] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.274445][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.274709][ T302] ? __create_object (mm/kmemleak.c:751) [ 33.274903][ T302] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.275110][ T302] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.275255][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.275451][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.275644][ T302] ? 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) [ 33.275836][ T302] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.275983][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.276189][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.276377][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.276565][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.276771][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.276974][ T302] ? 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) [ 33.277174][ T302] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.277378][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.277589][ T302] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.277785][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.277982][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.278167][ T302] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.278365][ T302] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.278564][ T302] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.278753][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.278940][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.279167][ T302] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.279376][ T302] ___sys_sendmsg (net/socket.c:2653) [ 33.279567][ T302] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.279758][ T302] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.279952][ T302] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.280135][ T302] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.280374][ T302] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.280563][ T302] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.280756][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.281004][ T302] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.281199][ T302] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.281395][ T302] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.281577][ T302] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.281786][ T302] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.281980][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.282211][ T302] RIP: 0033:0x7f4d722157b7 [ 33.282414][ T302] 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) [ 33.283064][ T302] RSP: 002b:00007ffef02d9608 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.283339][ T302] RAX: ffffffffffffffda RBX: 00007ffef02d9d30 RCX: 00007f4d722157b7 [ 33.283615][ T302] RDX: 0000000000000000 RSI: 00007ffef02d9670 RDI: 0000000000000005 [ 33.283888][ T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.284173][ T302] R10: 000000003d0f3910 R11: 0000000000000246 R12: 0000000000000004 [ 33.284463][ T302] R13: 0000000066bea016 R14: 0000000000496600 R15: 0000000000000000 | [ 33.287011][ T302] 1 lock held by ip/302: | [ 33.287164][ T302] #0: ffffffff91dbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.287628][ T302] | [ 33.287628][ T302] stack backtrace: [ 33.288164][ T302] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.288590][ T302] Call Trace: [ 33.288734][ T302] [ 33.288847][ T302] dump_stack_lvl (lib/dump_stack.c:122) [ 33.289049][ T302] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.289243][ T302] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 33.289520][ T302] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 33.289811][ T302] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.290058][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.290289][ T302] br_add_if (net/bridge/br_if.c:692) bridge [ 33.290514][ T302] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.290704][ T302] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 33.290938][ T302] do_setlink (net/core/rtnetlink.c:2907) [ 33.291123][ T302] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.291312][ T302] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.291545][ T302] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.291732][ T302] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.291923][ T302] ? __kernel_text_address (kernel/extable.c:79) [ 33.292121][ T302] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.292305][ T302] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.292527][ T302] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.292724][ T302] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.292926][ T302] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.293120][ T302] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.293311][ T302] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.293457][ T302] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.293658][ T302] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.293856][ T302] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.294056][ T302] ? 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) [ 33.294231][ T302] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.294426][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.294660][ T302] ? __create_object (mm/kmemleak.c:751) [ 33.294897][ T302] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.295089][ T302] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.295228][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.295420][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.295626][ T302] ? 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) [ 33.295822][ T302] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.295980][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.296183][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.296394][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.296598][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.296804][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.296999][ T302] ? 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) [ 33.297202][ T302] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.297410][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.297608][ T302] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.297813][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.298019][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.298231][ T302] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.298424][ T302] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.298633][ T302] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.298842][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.299045][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.299274][ T302] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.299470][ T302] ___sys_sendmsg (net/socket.c:2653) [ 33.299663][ T302] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.299859][ T302] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.300226][ T302] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.300413][ T302] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.300649][ T302] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.300956][ T302] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.301161][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.301393][ T302] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.301585][ T302] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.301773][ T302] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.302070][ T302] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.302274][ T302] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.302463][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.302700][ T302] RIP: 0033:0x7f4d722157b7 [ 33.303115][ T302] 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) [ 33.303743][ T302] RSP: 002b:00007ffef02d9608 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.304023][ T302] RAX: ffffffffffffffda RBX: 00007ffef02d9d30 RCX: 00007f4d722157b7 [ 33.304288][ T302] RDX: 0000000000000000 RSI: 00007ffef02d9670 RDI: 0000000000000005 [ 33.304680][ T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.305092][ T302] R10: 000000003d0f3910 R11: 0000000000000246 R12: 0000000000000004 [ 33.305378][ T302] R13: 0000000066bea016 R14: 0000000000496600 R15: 0000000000000000 | [ 33.307970][ T302] 1 lock held by ip/302: | [ 33.308118][ T302] #0: ffffffff91dbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 33.308529][ T302] | [ 33.308529][ T302] stack backtrace: [ 33.309040][ T302] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.309446][ T302] Call Trace: [ 33.309687][ T302] [ 33.309788][ T302] dump_stack_lvl (lib/dump_stack.c:122) [ 33.309982][ T302] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 33.310171][ T302] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 33.310549][ T302] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge [ 33.310822][ T302] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 33.311041][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.311276][ T302] br_add_if (net/bridge/br_if.c:692) bridge [ 33.311591][ T302] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.311770][ T302] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 33.312002][ T302] do_setlink (net/core/rtnetlink.c:2907) [ 33.312180][ T302] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 33.312490][ T302] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 33.312673][ T302] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 33.312853][ T302] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.313039][ T302] ? __kernel_text_address (kernel/extable.c:79) [ 33.313221][ T302] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.313407][ T302] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.313634][ T302] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.313826][ T302] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.314009][ T302] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.314190][ T302] ? __pfx_validate_nla (lib/nlattr.c:396) [ 33.314369][ T302] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.314508][ T302] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.314703][ T302] ? __nla_validate_parse (lib/nlattr.c:638) [ 33.314991][ T302] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 33.315182][ T302] ? 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) [ 33.315363][ T302] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 33.315551][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.315868][ T302] ? __create_object (mm/kmemleak.c:751) [ 33.316048][ T302] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.316233][ T302] rtnl_newlink (net/core/rtnetlink.c:3744) [ 33.316371][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 33.316648][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.316825][ T302] ? 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) [ 33.317006][ T302] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 33.317152][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 33.317344][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 33.317737][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 33.317924][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 33.318120][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 33.318304][ T302] ? 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) [ 33.318499][ T302] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 33.318676][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 33.318967][ T302] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.319160][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 33.319454][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 33.319637][ T302] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 33.319828][ T302] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.320013][ T302] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 33.320203][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 33.320503][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 33.320733][ T302] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 33.320934][ T302] ___sys_sendmsg (net/socket.c:2653) [ 33.321124][ T302] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 33.321305][ T302] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 33.321496][ T302] ? __lock_release (kernel/locking/lockdep.c:5435) [ 33.321677][ T302] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 33.322019][ T302] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 33.322211][ T302] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.322404][ T302] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 33.322649][ T302] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.322959][ T302] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 33.323260][ T302] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 33.323452][ T302] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 33.323667][ T302] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.323861][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.324194][ T302] RIP: 0033:0x7f4d722157b7 [ 33.324395][ T302] 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) [ 33.325166][ T302] RSP: 002b:00007ffef02d9608 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.325447][ T302] RAX: ffffffffffffffda RBX: 00007ffef02d9d30 RCX: 00007f4d722157b7 [ 33.325727][ T302] RDX: 0000000000000000 RSI: 00007ffef02d9670 RDI: 0000000000000005 [ 33.326124][ T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 33.326412][ T302] R10: 000000003d0f3910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink