Bug 904185 – dev-lang/go-1.20.3: illegal instruction in go-bootstrap

• Status: RESOLVED WORKSFORME
• Product: Gentoo Linux

[Description Morteza 2023-04-11 18:05:39 UTC]

dev-lang/go build fails with ``illegal instruction``
I'm using hardened-nomultilib with my new pc that has Intel alderlake cpu

Reproducible: Always

Steps to Reproduce:
1. emerge go
Actual Results:  
+ ./cmd/dist/dist bootstrap -a
Building Go toolchain1 using /usr/lib/go-bootstrap.
Building Go bootstrap cmd/go (go_bootstrap) using Go toolchain1.
SIGILL: illegal instruction
PC=0x466bf6 m=10 sigcode=2
instruction bytes: 0x66 0xf 0x38 0xdc 0xd2 0x66 0xf 0x38 0xdc 0xdb 0x66 0xf 0x38 0xdc 0xd2 0x66



Expected Results:  
Successful build

[Comment 1 Morteza 2023-04-11 18:15:19 UTC]

Created attachment 859879 [details]
emerge --info '=dev-lang/go-1.20.3::gentoo'

[Comment 2 Morteza 2023-04-11 18:49:51 UTC]

Created attachment 859880 [details]
build log

[Comment 3 Morteza 2023-04-11 21:25:46 UTC]

This error occurs so randomly once i can emerge syncthing the other times it fails I assume it's a hardening feature that doesn't function well with go

[Comment 4 Mike Gilbert 2023-04-12 02:47:00 UTC]

If this is a new PC, maybe you have some bad RAM? That might cause sporadic illegal instructions.

[Comment 5 Morteza 2023-04-12 13:08:51 UTC]

No i used go on archlinux without any issues and just to make sure i ran memtest86 tests for an hour and it passed

[Comment 6 Morteza 2023-04-15 15:40:26 UTC]

so nobody cares? this issue solely relates to gentoo but still nobody come and say a thing that would help solve this issue

[Comment 7 Morteza 2023-04-16 00:58:37 UTC]

sorry for being rude it was all my fault; looks like alderlake doesn't like overclocking E-cores results in instabilities.

[Comment 8 Sam James 2023-04-16 01:02:33 UTC]

Thanks for explaining.