Re: ClamAV requiring COMPAT_FREEBSD11

From: Milan Obuch <>
Date: Thu, 04 Aug 2022 11:12:24 UTC
On Thu, 4 Aug 2022 12:49:11 +0200
Andrea Venturoli <> wrote:

> Hello.
> I build clamav-0.105.1,1 (from quarterly branch) in Poudriere and
> I've always used it without problems.
> Suddenly last night freshclam started dying on a few machines: it
> turn out it prints "bad system call", due to the lack of
> COMPAT_FREEBSD11 in the kernel.
> Strangely it's been working with those kernels for years.
> In any case, I'm trying to find a way out of this: I really wouldn't 
> want to install a new kernel on a remote machine, considering the 
> customers might be on the verge of closing for holidays, so I might
> not have the chance to go and fix it in case of troubles.
> OTOH I can't leave ClamAV without DB updates for weeks, so I'm 
> investigating if an alternative exists.
> Why this requirement?
> Is there a way to recompile ClamAV in order to let freshclam work 
> without this kernel support?


ClamAV (or part of it) apparently was rewritten into Rust. Here comes
the requirement for COMPAT_FREEBSD11. Rust requires it, as for my
observation. I'd like to live without this requirement, but that's not
possible, for now.