On Mon, Sep 4, 2017 at 3:16 PM, Grant <emailgr...@gmail.com> wrote: >> I have a network of very nearly identical Dell XPS 13 laptops that I >> manage with a script. The master pushes the contents of its >> filesystem to the others so I only have to manage one system. It's >> worked really well over several years. I just got a new Dell XPS 13 >> to serve as the master and there have been some changes that were >> difficult to integrate with the network (high-res screen, /dev/sda >> replaced with /dev/nvme0n0) but those problems are fixed thanks to you >> guys. >> >> Now I'm running into "trap invalid opcode" errors on the older >> systems. Can I disable some of the newer CPU instruction sets on the >> master laptop when compiling to hopefully generate binaries that will >> work on the older systems? If so, could anyone point me in the right >> direction? I don't want to use distcc please. >> >> CHOST="x86_64-pc-linux-gnu" >> CFLAGS="-march=native -O2 -pipe -fomit-frame-pointer" > > > Switching to -mtune=native seems to work. Time for an emerge -e world. >
This still might fail after a sufficient amount of time, you may want to run cpuid2cpuflags on all of the laptops. I'm not sure if there is a way around this. You may be able to refer to the Intel ARK to look up processor and family capabilities directly. R0b0t1.
