https://bugs.dpdk.org/show_bug.cgi?id=1038
Bug ID: 1038 Summary: Illegal instruction found when running dpdk-test (built with GCC 12.1) on CPU has no AVX instruction set Product: DPDK Version: 21.11 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: major Priority: Normal Component: core Assignee: dev@dpdk.org Reporter: yongxin....@windriver.com Target Milestone: --- Build dpdk with GCC 12.1 on x86 Atom machine which has no AVX support. root@intel-x86-64:/mnt/ninja# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 42 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 24 On-line CPU(s) list: 0-23 Vendor ID: GenuineIntel BIOS Vendor ID: Intel(R) Corporation Model name: Intel Atom(R) P5362 processor BIOS Model name: Intel Atom(R) P5362 processor CPU @ 2.2GHz BIOS CPU family: 179 CPU family: 6 Model: 134 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm consta nt_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ss se3 sdbg cx16 xtpr pdcm sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave rdrand lahf_lm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2 cdp_l2 ss bd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust smep erms cqm rdt_a rdseed smap clflushopt clwb intel _pt sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect dtherm arat pln pts umip waitpkg gfni rdpid c ldemote movdiri movdir64b md_clear flush_l1d arch_capabilities root@intel-x86-64:/mnt/build/app/test# ./dpdk-test Illegal instruction root@intel-x86-64:/mnt/build/app/test# gdb ./dpdk-test GNU gdb (GDB) 12.1 Reading symbols from ./dpdk-test... (gdb) run Starting program: /mnt/build/app/test/dpdk-test [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Program received signal SIGILL, Illegal instruction. 0x000055555581af85 in __idxd_pmd_logtype () (gdb) bt #0 0x000055555581af85 in __idxd_pmd_logtype () #1 0x00007ffff776a62e in __libc_start_main () from /lib64/libc.so.6 #2 0x0000555555ec6d35 in _start () at ../sysdeps/x86_64/start.S:115 (gdb) display/i $pc 1: x/i $pc => 0x55555581af85 <__idxd_pmd_logtype+21>: vpxor %xmm1,%xmm1,%xmm1 Apparently, vpxor is an instruction of AVX set. It should not run on CPU without AVX support. BTW, there is no issue when building dpdk-test with GCC 11.3. -- You are receiving this mail because: You are the assignee for the bug.