We copied the module into memory at the start of the call, then made the caller
wait for the read. On hardware the module's bytes only arrive at the end, and
until then other threads can use that memory (pspautotests modules/loadrace).
SOCOM: Fireteam Bravo 2 EU (UCES00543) relies on this. Its loader EBOOT loads
SOCOMPSP.PRX on one thread while another builds a GU display list in a 0x40-byte
buffer at the end of its .bss. That list overruns into the free memory right after
it, which is where the game module goes. On hardware the module load later
overwrites the overrun; for us, the overrun overwrote the module's first
instructions, and the game crashed as soon as it started.
The load now runs from a CoreTiming event at the end of the wait. Pending loads
are saved in savestates.
Fixes#18842
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
