Hi,
On 2021-05-21 15:57:01 -0700, Andres Freund wrote:
> I found the LLVM commit to blame (c8fc5e3ba942057d6c4cdcd1faeae69a28e7b671).
> Contacting the author and reading the change to see if I can spit the
> issue myself.
Hrmpf. It's a silent API breakage. The author intended to email us about
it, but apparently forgot. One now needs to increment a string-pool
refcount. The reason that didn't trigger a reliable crash is that
there's a path where the refcount of string-pool entries aren't asserted
to be above before decrementing the refcount... And that there
practically never are references to the pool entries after use.
Continuing to discusss whether there's a better way to deal with this.
Greetings,
Andres Freund