Re: seawasp failing, maybe in glibc allocator

Hi,

On 2021-05-21 18:18:54 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > Interesting. I tried this with a slightly older LLVM checkout
> > (6f4f0afaa8ae), from 2021-04-20, contrib/ltree tests run without an
> > issue, even if I force everything to be jitted+inlined+optimized. The
> > git hash in the package version indicates the commit is from
> > 2021-05-20. Upgrading my local checkout to see whether I can repro the
> > problem. If I can we at least have a not too large bisection window...
> 
> We know that seawasp was okay as of
> 
> configure: using compiler=clang version 13.0.0 (https://github.com/llvm/llvm-project.git
f22d3813850f9e87c5204df6844a93b8c5db7730)
> 
> and not okay as of
> 
> configure: using compiler=clang version 13.0.0 (https://github.com/llvm/llvm-project.git
0e8f5e4a6864839d2292ec1ddfe48b6178c01f85)
> 
> so that should correspond to a window of about a week, if I gather
> Fabien's update strategy correctly.

I found the LLVM commit to blame (c8fc5e3ba942057d6c4cdcd1faeae69a28e7b671).
Contacting the author and reading the change to see if I can spit the
issue myself.

Greetings,

Andres Freund