Profiling build fails with internal error: m32_allocator_init: Failed to map

[guibou]

Describe the bug

Build with -c dbg sometimes fails with:

ghc-iserv-prof: mmap 131072 bytes at (nil): Cannot allocate memory
ghc-iserv-prof: Try specifying an address with +RTS -xm<addr> -RTS
ghc-iserv-prof: internal error: m32_allocator_init: Failed to map
    (GHC version 8.10.4 for x86_64_unknown_linux)
    Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug
ghc: ghc-iserv terminated (-6)

To Reproduce

I have no idea, this only happen on a few targets on a huge private codebase after already patching rules_haskell.

Expected behavior

It should not fail.

Environment

• OS name + version: Linux Nixos
• Bazel version: 4.1.0
• Version of the rules: current master

Additional context

Maybe related: https://gitlab.haskell.org/ghc/ghc/-/issues/19421

Note that it only happen with -fexternal-interpreter, see #438 for a discussion why I still think using this feature for prof build is not a good idea.

[guibou]

More details, it happen with GHC 8.10.4, but not with 8.10.7. I observed it too with 9.0.1 and not yet with 9.2.0-rc1.