bug#53136: 28.0.90; segfault in lock_file

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: 53136@debbugs.gnu.org
> Date: Sun, 09 Jan 2022 21:23:14 +0800
> 
> Po Lu <luangruo@yahoo.com> writes:
> 
> > Thanks, I'll look into it.
> 
> Perhaps the problem is in valgrind: when running under Valgrind, trying
> to lock that file makes lock_if_free return -2147459069.
> 
> That shouldn't happen, right?

It's a strange value, no matter what.