Description of problem: ltp测试套中cpuset_memory_pressure用例执行失败，cpuset_memory_pressure 7 TFAIL: sub group's memory_pressure didn't have memory pressure rate，鲲鹏机型执行pass，倚天机型上大概率失败，偶尔成功 日志如下： Running tests....... <<<test_start>>> tag=cpuset_memory_pressure stime=1692350012 cmdline="cpuset_memory_pressure_testset.sh" contacts="" analysis=exit <<<test_output>>> incrementing stop cpuset_memory_pressure 1 TFAIL: Memory_pressure had memory pressure rate. /tmp/tone/run/ltp/testcases/bin/cpuset_memory_pressure_testset.sh: line 64: 22434 Killed cpuset_memory_pressure $usemem cpuset_memory_pressure 3 TPASS: Cpuset memory pressure test succeeded. cpuset_memory_pressure 5 TPASS: Cpuset memory pressure test succeeded. /tmp/tone/run/ltp/testcases/bin/cpuset_memory_pressure_testset.sh: line 116: 22505 Killed cpuset_memory_pressure $usemem cpuset_memory_pressure 7 TFAIL: sub group's memory_pressure didn't have memory pressure rate. ^[[B/tmp/tone/run/ltp/testcases/bin/cpuset_memory_pressure_testset.sh: line 162: 22529 Killed cpuset_memory_pressure $usemem cpuset_memory_pressure 9 TPASS: Cpuset memory pressure test succeeded. /tmp/tone/run/ltp/testcases/bin/cpuset_memory_pressure_testset.sh: line 193: 22571 Killed cpuset_memory_pressure $usemem /tmp/tone/run/ltp/testcases/bin/cpuset_memory_pressure_testset.sh: line 193: 22572 Killed cpuset_memory_pressure $usemem cpuset_memory_pressure 11 TPASS: Cpuset memory pressure test succeeded. <<<execution_status>>> initiation_status="ok" duration=157 termination_type=exited termination_id=1 corefile=no cutime=2211 cstime=13372 <<<test_end>>> INFO: ltp-pan reported some tests FAIL LTP Version: 20200930 How reproducible: 高概率复现 Steps to Reproduce: git clone http://code.alibaba-inc.com/alikernel/ltp.git --branch LTP-20190517 cd ltp make autotools ./configure make make install /opt/ltp/runltp -f controllers -s cpuset_memory_pressure Actual results: 用例执行fail Expected results: 用例执行pass Additional info: 内核信息： # uname -r 5.10.134-760.git.c8c2ab7ed4.an8.aarch64 版本信息： # cat /etc/os-release NAME="Anolis OS" VERSION="8.8" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="8.8" PLATFORM_ID="platform:an8" PRETTY_NAME="Anolis OS 8.8" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" 复现环境： 倚天机型anolis8-arm物理机 内存信息： # free -h total used free shared buff/cache available Mem: 250Gi 4.0Gi 246Gi 3.0Mi 190Mi 245Gi Swap: 0B 0B 0B cpu信息： # lscpu Architecture: aarch64 Byte Order: Little Endian CPU(s): 128 On-line CPU(s) list: 0-127 Thread(s) per core: 1 Core(s) per socket: 128 Socket(s): 1 NUMA node(s): 2 Vendor ID: ARM BIOS Vendor ID: T-HEAD Model: 0 Model name: Neoverse-N2 BIOS Model name: Yitian710-128 Stepping: r0p0 BogoMIPS: 100.00 L1d cache: 64K L1i cache: 64K L2 cache: 1024K L3 cache: 65536K NUMA node0 CPU(s): 0-63 NUMA node1 CPU(s): 64-127 Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm ssbs sb dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh