Re: [bug #33996] 2.0.2: Crash related to ports and threads

[Ludovic Courtès]

Hi!

Andy Wingo <address@hidden> skribis:

> Oh dear, this is a nasty one.  The issue is that Guile's ports are not
> threadsafe.  I hadn't thought about this one...
>
> I am adding guile-devel to the Cc for input.  Any fix to this will be
> pretty big, I think.  I think that the right fix here is probably what
> Glibc does; see `info libc "Streams and Threads"` for the full details.

Indeed, it would probably need per-port mutexes, making I/O primitives
thread-safe by default, and perhaps providing unlocked variants like
libc does.

Putting our fat mutexes on a diet seems like a prerequisite...

Thanks,
Ludo’.