Failed iniquity-gc tests on Linux

[lihaohong6]

The command raco test -p langs produced errors for iniquity-gc tests. They are reproduced on Fedora 41 and Debian sid (via docker). Errors did not occur on a macbook.

Fedora 41

Collect garbage: rsp = 7ffe01470648, rbp = 7ffe01470648, rbx = 7f1ab141b010
Collect garbage: rsp = 7ffe01470648, rbp = 7ffe01470648, rbx = 7f1ab141b018
Collect garbage: rsp = 7ffe01470648, rbp = 7ffe01470648, rbx = 7f1ab141b010
Collect garbage: rsp = 7ffe01470640, rbp = 7ffe01470648, rbx = 7f1ab141b018
Collect garbage: rsp = 7ffe01470640, rbp = 7ffe01470648, rbx = 7f1ab141b018
Collect garbage: rsp = 7ffe01449540, rbp = 7ffe01470648, rbx = 7f1ab142e888
--------------------
ERROR
name:       check-equal?
location:
  /home/peter/.local/share/racket/8.15/pkgs/langs/iniquity-gc/test/test-runner.rkt:196:2

invalid memory reference.  Some debugging context lost
--------------------

More info:

OS: Fedora Linux 41 x86_64
Kernel: 6.12.8-200.fc41.x86_64
gcc (GCC) 14.2.1 20250110 (Red Hat 14.2.1-7)
GNU ld version 2.43.1-5.fc41
NASM version 2.16.03 compiled on Jul 18 2024

Debian sid (in a docker container)

Collect garbage: rsp = 7ffc8e675958, rbp = 7ffc8e675958, rbx = 7fd5b0f65010
--------------------
ERROR
name:       check-equal?
location:
  root/.local/share/racket/8.14/pkgs/langs/iniquity-gc/test/test-runner.rkt:187:2

invalid memory reference.  Some debugging context lost
--------------------
Collect garbage: rsp = 7ffc8e675958, rbp = 7ffc8e675958, rbx = 7fd5b0f65018
Collect garbage: rsp = 7ffc8e675958, rbp = 7ffc8e675958, rbx = 7fd5b0f65010
--------------------
ERROR
name:       check-equal?
location:
  root/.local/share/racket/8.14/pkgs/langs/iniquity-gc/test/test-runner.rkt:189:2

invalid memory reference.  Some debugging context lost
--------------------
Collect garbage: rsp = 7ffc8e675950, rbp = 7ffc8e675958, rbx = 7fd5b0f65018
Collect garbage: rsp = 7ffc8e675950, rbp = 7ffc8e675958, rbx = 7fd5b0f65018
Collect garbage: rsp = 7ffc8e64e850, rbp = 7ffc8e675958, rbx = 7fd5b0f78888
--------------------
ERROR
name:       check-equal?
location:
  root/.local/share/racket/8.14/pkgs/langs/iniquity-gc/test/test-runner.rkt:196:2

invalid memory reference.  Some debugging context lost
--------------------

More info:

gcc (Debian 14.2.0-15) 14.2.0
GNU ld (GNU Binutils for Debian) 2.43.90.20250127
NASM version 2.16.03

[lihaohong6]

ld also gave this warning on Debian sid. I doubt this feature will be removed soon, though, so this is probably not urgent.

/usr/bin/ld: warning: /root/.local/share/racket/8.14/pkgs/langs/test-programs/hoax/str.o: missing .note.GNU-stack section implies executable stack
/usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker

[lihaohong6]

Just tested on Ubuntu, here's an updated status:

What worked: Ubuntu 22.04, Ubuntu 24.04, Ubuntu-devel, macOS.
What did not work: Fedora 41, Debian sid.
Debian 12 was stuck on inquity-gc tests for 2 hours, so I just terminated it.

Not sure what's the root cause here. Since most people will use Ubuntu anyway, it'll only affect a very small set of people.