[缺陷描述]: stress-ng压力测试过程中,跑class os过程中,messages日志中有error日志打印:kernel: stress-ng-enosy[3930]: segfault at 108 ip 000000000045461d sp 00007ffc6c7bfdf0 error 4 in stress-ng[400000+160000] [重现概率]: 必现 [重现环境]: 内核: # uname -r 4.19.91-273.git.4e69035.an7.x86_64 # cat /etc/os-release NAME="Anolis OS" VERSION="7.9" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="7.9" PRETTY_NAME="Anolis OS 7.9" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" BUG_REPORT_URL="https://bugs.openanolis.cn/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" CPU信息: # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 106 Model name: Intel(R) Xeon(R) Platinum 8369B CPU @ 2.70GHz Stepping: 6 CPU MHz: 2699.998 BogoMIPS: 5399.99 Hypervisor vendor: KVM Virtualization type: full L1d cache: 48K L1i cache: 32K L2 cache: 1280K L3 cache: 49152K NUMA node0 CPU(s): 0-3 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 syscall 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 3dnowprefetch cpuid_fault invpcid_single ibrs_enhanced fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid avx512f 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_bitalg avx512_vpopcntdq rdpid fsrm arch_capabilities 内存: # free -h total used free shared buff/cache available Mem: 15G 284M 14G 608K 422M 14G Swap: 0B 0B 0B [复现步骤]: 跑stress-ng class os [预期结果]: stress-ng压力过程中,messages日志中没有error日志; [实际结果]: stress-ng压力过程中,messages日志中有error日志打印;