Re: Okay, how much ram does it take to build Rust?

> On Sep 11, 2025, at 5:56 PM, Mark Millard <[email protected]> wrote:
> 
> Dan Mahoney (Ports) <freebsd_at_gushi.org> wrote on
> Date: Thu, 11 Sep 2025 23:35:33 UTC :
> 
>> Entirely different problem:
>> 
>> Build now fails within a minute of starting:
>> 
>> https://poudriere-src.isc.org/data/freebsd:16:x86:64-default/2025-09-11_23h25m42s/logs/errors/rust-1.89.0.log
> 
> The actual error report in that log file is:
> 
>  = note: ld: error: undefined symbol: readdir_r
>>>> referenced by std.7afbaec6631a8b5b-cgu.01
>>>>              std-3a0e78699a7df230.std.7afbaec6631a8b5b-cgu.01.rcgu.o:(std::sys::fs::unix::remove_dir_impl::remove_dir_all_recursive::hd9cf968a76fe7acb) in archive /wrkdirs/usr/ports/lang/rust/work/bootstrap/lib/rustlib/x86_64-unknown-freebsd/lib/libstd-3a0e78699a7df230.rlib
>>>> did you mean: readdir_r@FBSD_1.5
>>>> defined in: /lib/libc.so.7
>          cc: error: linker command failed with exit code 1 (use -v to see invocation)
> 
> Your poudriere jail's world is a version of FreeBSD 16
> that had readdir_r removed, breaking builds of rust.
> 
> FreeBSD has had that removal reverted. You need to update
> the poudriere jail's world content to be of a vintage that
> includes:
> 
>    • git: d20c82507278 - main - Revert "libc: Remove readdir_r(3)" Dag-Erling Smørgrav

Aah, so at some point, I guess I had a 16 vm, which was failing due to a memory limit, then tried updating to try and fix that, but at the same time as fixing the ram issue, so I was no longer memory bound, but now in the broken state.  Whoops, perfect timing.

I've updated now, and we're once again building.  (I have both a jail built from src and one that uses pkgbase, trying both).

>> My entire poudriere-conf is:
> 
> Is the "-" a typo? The normal name is: poudriere.conf

It was a typo, yes.

> 
> "USE_TMPFS=yes" means that much of the file system
> space usage is competing for the system's RAM+SWAP
> space instead of for disk space.
> 
> Having something like, say, SWAP=3.6*RAM [so
> (RAM+SWAP)=4.6*RAM] is a possibility that will
> page the part of the time that RAM is insufficient.
> 
> Otherwise you probably want more like: USE_TMPFS=data
> 

This is what I've done.

Let's see if it works.  Rust builds so fast, after all...

-Dan