[问题简述] 内部版的nightly，在Anolsi8 ck-4.19 aarch64环境，ltp测试套net.multicast:mc_commo跑失败TFAIL: NO Datagrams received from [环境信息] [root@l57f12084 ltp]# uname -r 4.19.91-539.git.02d097c7c.an8.aarch64 [root@l57f12084 ltp]# free -g total used free shared buff/cache available Mem: 755 3 750 0 1 748 Swap: 1 0 1 [root@l57f12084 ltp]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 378G 0 378G 0% /dev tmpfs 378G 0 378G 0% /dev/shm tmpfs 378G 11M 378G 1% /run tmpfs 378G 0 378G 0% /sys/fs/cgroup /dev/sda2 49G 15G 32G 33% / /dev/sda1 1021M 6.4M 1015M 1% /boot/efi tmpfs 76G 0 76G 0% /run/user/0 [root@l57f12084 ltp]# cat /proc/cmdline BOOT_IMAGE=(hd1,gpt2)/boot/vmlinuz-4.19.91-539.git.02d097c7c.an8.aarch64 root=UUID=bc680412-49bc-4785-9dc0-a2b3a5b2508d ro console=tty0 console=ttyS0,115200 mitigations=off kpti=off nokaslr psi=n crashkernel=0M-2G:0M,2G-8G:192M,8G-:256M [root@l57f12084 ltp]# lscpu Architecture: aarch64 Byte Order: Little Endian CPU(s): 96 On-line CPU(s) list: 0-95 Thread(s) per core: 1 Core(s) per socket: 48 Socket(s): 2 NUMA node(s): 1 Vendor ID: 0x48 Model: 0 Stepping: 0x1 CPU max MHz: 2600.0000 CPU min MHz: 200.0000 BogoMIPS: 200.00 L1d cache: 64K L1i cache: 64K L2 cache: 512K L3 cache: 24576K NUMA node0 CPU(s): 0-95 Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma dcpop asimddp asimdfhm [报错信息] Running tests....... <<<test_start>>> tag=mc_commo stime=1668590966 cmdline="mc_commo.sh" contacts="" analysis=exit <<<test_output>>> incrementing stop mc_commo 1 TINFO: initialize 'lhost' 'ltp_ns_veth2' interface mc_commo 1 TINFO: set local addr 10.0.0.2/24 mc_commo 1 TINFO: set local addr fd00:1:1:1::2/64 mc_commo 1 TINFO: initialize 'rhost' 'ltp_ns_veth1' interface mc_commo 1 TINFO: set remote addr 10.0.0.1/24 mc_commo 1 TINFO: set remote addr fd00:1:1:1::1/64 mc_commo 1 TINFO: Network config (local -- remote): mc_commo 1 TINFO: ltp_ns_veth2 -- ltp_ns_veth1 mc_commo 1 TINFO: 10.0.0.2/24 -- 10.0.0.1/24 mc_commo 1 TINFO: fd00:1:1:1::2/64 -- fd00:1:1:1::1/64 mc_commo 1 TINFO: Start mc_recv 224.0.0.3 10.0.0.2 43370 mc_commo 1 TINFO: Start on mc_send 224.0.0.3 10.0.0.1 43370 10 mc_commo 1 TINFO: Waiting for 100 sec.! Do not interrupt. mc_commo 1 TFAIL: NO Datagrams received from /tmp/tone/run/ltp/testcases/bin/test.sh: line 143: 33944 Killed mc_recv $GROUP_ADDR $(tst_ipaddr) $PORT >> $OUTFILE (wd: /tmp/ltp-ngDsnKtvS8/mc_commo.WO8s0udBHR) <<<execution_status>>> initiation_status="ok" duration=116 termination_type=exited termination_id=1 corefile=no cutime=20 cstime=19 <<<test_end>>> INFO: ltp-pan reported some tests FAIL LTP Version: 20190517 ############################################################### Done executing testcases. LTP Version: 20190517 ############################################################### [出现频率] 使用了2台物理机，多次验证都是fail的 [复现步骤] git clone https://github.com/linux-test-project/ltp cd ltp make autotools ./configure make make install cd /opt/ltp ./runltp -f net.multicast -s mc_commo