Description of problem: anolis23 x86_64 ECS环境下，ltp测试套net.tcp_cmds/ipneigh01_ip run fail:TFAIL: cannot ping 10.0.0.1 Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. git clone https://gitee.com/anolis/ltp.git --branch 20230315 2. export CFLAGS+="-fcommon" make autotools ./configure make && make install 3. cd /opt/ltp;./runltp -f net.tcp_cmds -s ipneigh01_ip Actual results: tag=ipneigh01_ip stime=1682274846 cmdline="ipneigh01.sh -c ip" contacts="" analysis=exit <<<test_output>>> ipneigh01 1 TINFO: initialize 'lhost' 'ltp_ns_veth2' interface ipneigh01 1 TINFO: add local addr 10.0.0.2/24 ipneigh01 1 TINFO: add local addr fd00:1:1:1::2/64 ipneigh01 1 TINFO: initialize 'rhost' 'ltp_ns_veth1' interface ipneigh01 1 TINFO: add remote addr 10.0.0.1/24 ipneigh01 1 TINFO: add remote addr fd00:1:1:1::1/64 ipneigh01 1 TINFO: Network config (local -- remote): ipneigh01 1 TINFO: ltp_ns_veth2 -- ltp_ns_veth1 ipneigh01 1 TINFO: 10.0.0.2/24 -- 10.0.0.1/24 ipneigh01 1 TINFO: fd00:1:1:1::2/64 -- fd00:1:1:1::1/64 ipneigh01 1 TINFO: timeout per run is 0h 5m 0s ipneigh01 1 TINFO: stress auto-creation ARP cache entry deleted with 'ip' 50 times ipneigh01 1 TFAIL: cannot ping 10.0.0.1 Summary: passed 0 failed 1 broken 0 skipped 0 warnings 0 Expected results: case pass Additional info: [root@qibo-anolis23-nightly-func-x86-1 ~]# uname -r 5.10.134-88.git.df00332440f4.an23.x86_64 [root@qibo-anolis23-nightly-func-x86-1 ~]# cat /etc/anolis-release Anolis OS release 23 [root@qibo-anolis23-nightly-func-x86-1 ~]# cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/boot/vmlinuz-5.10.134-88.git.df00332440f4.an23.x86_64 root=UUID=ece72b7f-465b-433d-8b3b-e5fa53a04642 ro rhgb cryptomgr.notests rcupdate.rcu_cpu_stall_timeout=300 quiet biosdevname=0 net.ifnames=0 console=tty0 console=ttyS0,115200n8 noibrs nvme_core.io_timeout=4294967295 nvme_core.admin_timeout=4294967295 cgroup.memory=nokmem crashkernel=0M-2G:0M,2G-8G:192M,8G-:256M [root@qibo-anolis23-nightly-func-x86-1 ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 4.0M 0 4.0M 0% /dev tmpfs 7.6G 0 7.6G 0% /dev/shm tmpfs 3.1G 716K 3.1G 1% /run /dev/vda1 40G 14G 27G 34% / /dev/vdc1 98G 3.3G 90G 4% /tmp tmpfs 1.6G 0 1.6G 0% /run/user/0 [root@qibo-anolis23-nightly-func-x86-1 ~]# free -g total used free shared buff/cache available Mem: 15 0 12 0 1 14 Swap: 0 0 0 [root@qibo-anolis23-nightly-func-x86-1 ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 46 bits physical, 57 bits virtual Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Vendor ID: GenuineIntel BIOS Vendor ID: Alibaba Cloud Model name: Intel(R) Xeon(R) Platinum 8369B CPU @ 2.70GHz BIOS Model name: pc-i440fx-2.1 CPU @ 0.0GHz BIOS CPU family: 1 CPU family: 6 Model: 106 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 Stepping: 6 BogoMIPS: 5399.99 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht sys call nx pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid tsc_known_freq pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dn owprefetch cpuid_fault invpcid_single ibrs_enhanced fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid av x512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves wbnoinvd arat avx512vbmi pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bit alg avx512_vpopcntdq rdpid fsrm arch_capabilities Virtualization features: Hypervisor vendor: KVM Virtualization type: full Caches (sum of all): L1d: 96 KiB (2 instances) L1i: 64 KiB (2 instances) L2: 2.5 MiB (2 instances) L3: 48 MiB (1 instance) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-3 Vulnerabilities: Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown Retbleed: Not affected Spec store bypass: Vulnerable Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Enhanced IBRS, RSB filling, PBRSB-eIBRS SW sequence Srbds: Not affected Tsx async abort: Not affected
定位结论：测试环境导致，应该是前面某个用例有残留导致。 分析测试用例： do_test() { local entry_name="ARP" [ "$TST_IPV6" ] && entry_name="NDISC" tst_res TINFO "stress auto-creation $entry_name cache entry deleted with '$CMD' $NUMLOOPS times" for i in $(seq 1 $NUMLOOPS); do ping$TST_IPV6 -q -c1 $(tst_ipaddr rhost) -I $(tst_iface) > /dev/null || \ tst_brk TFAIL "cannot ping $(tst_ipaddr rhost)" local k local ret=1 for k in $(seq 1 30); do $SHOW_CMD | grep -q $(tst_ipaddr rhost) if [ $? -eq 0 ]; then ret=0 break; fi tst_sleep 100ms done [ "$ret" -ne 0 ] && \ tst_brk TFAIL "$entry_name entry '$(tst_ipaddr rhost)' not listed" $DEL_CMD $SHOW_CMD | grep -q "$(tst_ipaddr rhost).*$(tst_hwaddr rhost)" && \ tst_brk TFAIL "'$DEL_CMD' failed, entry has " \ "$(tst_hwaddr rhost)' $i/$NUMLOOPS" done tst_res TPASS "verified adding/removing $entry_name cache entry" } 可以看出失败在ping$TST_IPV6 -q -c1 $(tst_ipaddr rhost) -I $(tst_iface) 这里。 看日志是ping失败了。查看环境上的ip信息： [root@qibo-anolis23-nightly-func-arm-1 ltp]# ip add 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 10.0.0.1/32 scope global lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:16:3e:34:47:5e brd ff:ff:ff:ff:ff:ff altname enp5s0 inet 172.16.0.38/24 brd 172.16.0.255 scope global dynamic noprefixroute eth0 valid_lft 315293108sec preferred_lft 315293108sec inet6 fe80::dc7d:8781:b38d:5b5c/64 scope link noprefixroute valid_lft forever preferred_lft forever 4: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000 link/gre 0.0.0.0 brd 0.0.0.0 5: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 6: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 8: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000 link/tunnel6 :: brd :: permaddr 2e08:8864:4a59:: 9: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN group default qlen 1000 link/gre6 :: brd :: permaddr 66d:96ce:d010:: 20: veth-outside@if19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether b6:a8:60:97:7f:06 brd ff:ff:ff:ff:ff:ff link-netns test-ns inet6 fe80::b4a8:60ff:fe97:7f06/64 scope link valid_lft forever preferred_lft forever 31: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 32: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000 link/sit 0.0.0.0 brd 0.0.0.0 33: ip6_vti0@NONE: <NOARP> mtu 1428 qdisc noop state DOWN group default qlen 1000 link/tunnel6 :: brd :: permaddr 2ed8:9818:d58d:: 34: ip_vti0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 53: ifb0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 32 link/ether 2e:5b:2a:a0:f5:b5 brd ff:ff:ff:ff:ff:ff 54: ifb1: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 32 link/ether 0e:a1:c5:ab:74:47 brd ff:ff:ff:ff:ff:ff 1394: ltp_ns_veth2@if1395: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether fe:3d:85:46:fc:49 brd ff:ff:ff:ff:ff:ff link-netns ltp_ns inet 10.0.0.2/24 scope global ltp_ns_veth2 valid_lft forever preferred_lft forever inet6 fd00:1:1:1::2/64 scope global nodad valid_lft forever preferred_lft forever inet6 fe80::fc3d:85ff:fe46:fc49/64 scope link valid_lft forever preferred_lft forever 可以看到lo接口上多了一个10.0.0.1的ip，按照case的设置，这个ip是remote addr。 删除这个ip： ip add del 10.0.0.1/32 dev lo 再次执行通过： <<<test_start>>> tag=ipneigh01_ip stime=1685348456 cmdline="ipneigh01.sh -c ip" contacts="" analysis=exit <<<test_output>>> incrementing stop ipneigh01 1 TINFO: initialize 'lhost' 'ltp_ns_veth2' interface ipneigh01 1 TINFO: add local addr 10.0.0.2/24 ipneigh01 1 TINFO: add local addr fd00:1:1:1::2/64 ipneigh01 1 TINFO: initialize 'rhost' 'ltp_ns_veth1' interface ipneigh01 1 TINFO: add remote addr 10.0.0.1/24 ipneigh01 1 TINFO: add remote addr fd00:1:1:1::1/64 ipneigh01 1 TINFO: Network config (local -- remote): ipneigh01 1 TINFO: ltp_ns_veth2 -- ltp_ns_veth1 ipneigh01 1 TINFO: 10.0.0.2/24 -- 10.0.0.1/24 ipneigh01 1 TINFO: fd00:1:1:1::2/64 -- fd00:1:1:1::1/64 ipneigh01 1 TINFO: timeout per run is 0h 5m 0s ipneigh01 1 TINFO: stress auto-creation ARP cache entry deleted with 'ip' 50 times ipneigh01 1 TPASS: verified adding/removing ARP cache entry Summary: passed 1 failed 0 broken 0 skipped 0 warnings 0 <<<execution_status>>> initiation_status="ok" duration=1 termination_type=exited termination_id=0 corefile=no cutime=73 cstime=25 <<<test_end>>> INFO: ltp-pan reported all tests PASS LTP Version: 20220527-692-g147bb6499 ############################################################### Done executing testcases. LTP Version: 20220527-692-g147bb6499 ############################################################### [root@qibo-anolis23-nightly-func-arm-1 ltp]#
*** Bug 4819 has been marked as a duplicate of this bug. ***
*** Bug 4820 has been marked as a duplicate of this bug. ***