On Fri, Sep 22, 2023 at 7:48 PM Bernd Schubert <bs_li...@aakef.fastmail.fm> wrote: > > I'm trying to compile our tools on an older lab system and get > > Program received signal SIGILL, Illegal instruction. > 0x00007ffff434c766 in rte_cpu_get_flag_enabled > (feature=feature@entry=RTE_CPUFLAG_RTM) at ../lib/eal/x86/rte_cpuflags.c:173 > 173 return (regs[feat->reg] >> feat->bit) & 1; > (gdb) bt > #0 0x00007ffff434c766 in rte_cpu_get_flag_enabled > (feature=feature@entry=RTE_CPUFLAG_RTM) at ../lib/eal/x86/rte_cpuflags.c:173 > #1 0x00007ffff3ffb572 in rte_rtm_init () at ../lib/eal/x86/rte_spinlock.c:14 > ##2 0x00007ffff7fc947e in call_init (l=<optimized out>, argc=argc@entry=1, > argv=argv@entry=0x7fffffffe088, env=env@entry=0x7fffffffe098) > at ./elf/dl-init.c:70 > #3 0x00007ffff7fc9568 in call_init (env=0x7fffffffe098, argv=0x7fffffffe088, > argc=1, l=<optimized out>) at ./elf/dl-init.c:33 > #4 _dl_init (main_map=0x7ffff7ffe2e0, argc=1, argv=0x7fffffffe088, > env=0x7fffffffe098) at ./elf/dl-init.c:117 > #5 0x00007ffff7fe32ea in _dl_start_user () from /lib64/ld-linux-x86-64.so.2 > > > This already has been reported here > https://inbox.dpdk.org/users/c7ff2508-d633-404e-95af-5f604d8e8...@intel.com/t/ > but I don't see a solution there. It just ends up asking for the line numbers. > Well, the line is > > > __cpuid_count(feat->leaf, feat->subleaf, > regs[RTE_REG_EAX], regs[RTE_REG_EBX], > regs[RTE_REG_ECX], regs[RTE_REG_EDX]); > > /* check if the feature is enabled */ > return (regs[feat->reg] >> feat->bit) & 1; ====> line 173 > > > Maybe this should catch SIGILL?
SIGILL is a sign that some unsupported instruction (for your old cpu) has been executed. Did you try building dpdk with -Dplatform=generic meson option? -- David Marchand
