ld fails with "unable to move location counter backward"

[RossComputerGuy]

When building for x86_64, I've noticed that Nix fails to build the kernel:

x86_64-unknown-linux-gnu-ld: error: ../arch/x86/boot/setup.ld:15: unable to move location counter backward for: .bstext
x86_64-unknown-linux-gnu-ld: error: ../arch/x86/boot/setup.ld:15: unable to move location counter backward for: .bstext
x86_64-unknown-linux-gnu-ld: error: ../arch/x86/boot/setup.ld:15: unable to move location counter backward for: .bstext
make[2]: *** [../arch/x86/boot/Makefile:107: arch/x86/boot/setup.elf] Error 1
make[1]: *** [../arch/x86/Makefile:283: bzImage] Error 2
make[1]: *** Waiting for unfinished jobs....

This error looks similar to #1909 but it's with a different file. This is in kernel 6.6.41.

[nathanchance]

This involves a similar section as #1877 with the same file (.bstext here vs. .bsdata there), is it related?

[RossComputerGuy]

Looks like it? That issue doesn't mention a line, this one says it's on line 15. The error messages are slightly different enough that I didn't know that issue existed.

[nathanchance]

Right, I would not have expected you to catch that :)

That issue resulted in an upstream NixOS report and I wonder if this comment's workaround resolves this or the upstream patch that was submitted for #1983 (separate but related issue)?

[RossComputerGuy]

I'll try that first patch, I already have CI testing it and I'm building it locally. Unfortunately, I have to cross compile because my machines are all ARM. Will report back if that patch works, can't do much about the boot failure until this is fixed.

[RossComputerGuy]

It builds https://github.com/RossComputerGuy/nixpkgs-llvm-ws/runs/27969408499