Re: dnsdist segfaults since clang-13

On Tue, Dec 21, 2021 at 09:06:55AM +0100, Otto Moerbeek wrote:

> On Tue, Dec 21, 2021 at 06:54:16PM +1100, Jonathan Gray wrote:
>
> > On Tue, Dec 21, 2021 at 08:25:14AM +0100, Otto Moerbeek wrote:
> > > Hi,
> > >
> > > I noticed dnsdist on amd64 segfaults runtime when compiled with
> > > clang-13. The most recent package snapshot has a broken dnsdist.
> > >
> > > This does not seem to happen on arm64.
> > >
> > > I'm investigating.
> > >
> > > -Otto
> >
> > There was a backported fix for a runtime segfault with bind9
> > on FreeBSD that might be related?
> >
> > https://github.com/llvm/llvm-project/commit/c446ac46746edcffab57d22c42c249a3954698c9
>
> Thanks!,
>
> I'll take a look,
>
> -Otto
>

Sadly, the diff above does not make a difference. As a last try I'll
check with a compiler compiled with the diff.

- Compiling with -O1 creates a working executable.
- Clang-13 on arch or debian linux creates working executables.

I think I'll go for the -O1 woraround unless somebody has a better
suggestion (or my test above has better results).

-Otto