bug#49261: 28.0.50; File Locking Breaks Presumptuous Toolchains

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> Can you show the form being evaluated in frame #10?  Like this:
>
>   (gdb) fr 10
>   (gdb) pp form

Hm:

(gdb) fr 10
#10 0x0000555555706a59 in Feval (form=XIL(0x7ffff20f5023), 
    lexical=<optimized out>) at eval.c:2343
2343      return unbind_to (count, eval_sub (form));
(gdb) pp form
#<INVALID_LISP_OBJECT 0x7ffff20f5023>

This is with an -O2 build; the bug also reproduces with an -O1 build;
I'll try that...

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