emerge erroring and packages failing to build during install

cyplex · n00b Joined: 14 Apr 2025 Posts: 3

Hello,
I am new to Gentoo, please forgive me for my ineptitude.

I have been running into a slew of install-halting errors during package compilation and dependency calculation when executing the emerge command during installation (and post installation in one instance, which I unsuccessfully attempted to remedy by reinstalling, leaving me here). If you are to view the raw terminal output linked below, you will see (on lines 9 and 18 ) that segmentation fault errors are being thrown before dependencies are fully calculated - sometimes these are illegal instruction errors.

I have ran many hardware benchmarks on Windows 11, as well as Memtest (from both amd64 Gentoo LiveGUI and minimal install CDs, and from my motherboard's firmware) to verify the fault does not lie there, I've even successfully compiled different programs, varying in size/complexity on both Linux Mint and Windows 11.

Relevant logs/information:
Build log: https://pastebin.com/J57D7c4P
Ebuild environment?: https://pastebin.com/aq36MRCY
emerge --info: https://pastebin.com/tYBZfReK
emerge -pqv: https://pastebin.com/KMHBbG6x
Raw terminal output: https://pastebin.com/AqzQPJd9

My apologies if I have omitted any important information, I will be sure to provide it where necessary.
Thank you for reading and/or assisting :]

bstaletic · Guru Joined: 05 Apr 2014 Posts: 517

Welcome to the forums and thank you for providing all of the files portage suggested right away!

The build log shows ICE (internal compiler error) which in my experience happens for a few reasons (in order of frequency with which I have seen them):

Actual compiler bugs, which are much more likely if you play with newly implemented compiler features.
Faulty hardware, which can be hard to diagnose, because it might just be a single RAM cell at the "far" end of the RAM sticks.
Back to compiler bugs, but in some obscure pathological source files, like an initialization list of an 8MB object, whose every subobject needs an implicit conversion.
Messed up toolchains? For example, the upgrade from profile 17.1 to 23.0 required taking careful steps regarding the order i which the compiler and the standard library are recompiled.

All four of the above are pretty rare encounters - not many experiment with newest language features, hardware is decently resilient and gentoo profile upgrades happens once every ~5 years.

Considering those segfaults you have seen, try to reproduce it and then upload dmesg output.

EDIT: You also mentioned illegal instructions. That could be for two reasons:

Bad binhost config.
Bad CPU_FLAGS_X86

In either case, post /proc/cpuinfo.

pietinger · Posted: Wed May 28, 2025 8:10 pm Post subject:

cyplex · n00b Joined: 14 Apr 2025 Posts: 3

cyplex · n00b Joined: 14 Apr 2025 Posts: 3