How can I return my system to normal?

[typecasto]

I'm not really noticing any performance gains, but I am noticing a lot of build failures (including the kernel), gcc segfaulting, and just strange behavior when it comes to packages. I really like the concept, but I want to have a stable system again.

How would I go about removing gentooLTO from my system completely?

[haimeh]

Note: This is assuming you used eselect, not layman but all except step 4 would be the same I think

step 1) emerge --depclean sys-config/ltoize

step 2) emerge --depclean

step 3) Restore your make.config file using a copy you saved from before you did gentoo-lto OR if you didnt make a backup, remove the USE flags "pgo lto graphite" and remove the line where you source from the make.conf.lto file and restore your COMMON_FLAGS to something like "-march=native -O2 -pipe"

step 3.5) you may wish to review your zz-autounmask file if you used autounmask-continue during the upgrade to gentoo-lto

step 4) eselect repository remove mv lto-overlay

step 5) emerge -e --keep-going @world

Now you should be back to normal gentoo gentoo-lto just adds some config files and installs some packages that lets portage run them, so besides needing to do another system upgrade, there isnt much to it

[jiblime]

Along with the above advice, this may help.

# Rebuild toolchain without LTO
root# emerge --ask @system sys-devel/binutils sys-libs/binutils-libs sys-devel/libtool
# Rebuild the entire system without LTO
root# emerge --emptytree --keep-going @world

Alternatively, you can chroot a stage 3 and use its "untainted" toolchain instead if you believe yours is broken beyond repair.

Had you tried running lto-rebuild recently?