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barbudreadmon / fbalpha-backup-dontuse-ty

Deprecated port of Final Burn Alpha to Libretro (v0.2.97.43).
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Crashes on load except for Neo Geo games #136

Closed d-egan closed 7 years ago

d-egan commented 7 years ago

Every game I tested was loading and working yesterday but now only Neo Geo games seem to work (though samsho2's graphics are broken).

Some games that have stopped working:

It crashes with zsh: floating point exception (core dumped)

Backtracing it gives me

Starting program: /usr/bin/retroarch 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe617b700 (LWP 11931)]
[New Thread 0x7fffe617b700 (LWP 11961)]
[Thread 0x7fffe617b700 (LWP 11931) exited]

Thread 1 "retroarch" received signal SIGFPE, Arithmetic exception.
0x00007fffda1da2ca in uPD499ASetTicks(unsigned int) () from ~/.config/retroarch/cores/fbalpha_libretro.so
(gdb) bt
#0  0x00007fffda1da2ca in uPD499ASetTicks(unsigned int) () from ~/.config/retroarch/cores/fbalpha_libretro.so
#1  0x00007fffda164879 in NeoFrame() () from ~/.config/retroarch/cores/fbalpha_libretro.so
#2  0x00007fffdaa81c62 in retro_run () from ~/.config/retroarch/cores/fbalpha_libretro.so
#3  0x000000000041b518 in ?? ()
#4  0x000000000042c6ff in ?? ()
#5  0x000000000041a422 in ?? ()
#6  0x00007ffff0f14511 in __libc_start_main () from /usr/lib/libc.so.6
#7  0x000000000041784a in ?? ()

I don't understand the code base (or backtracing for that matter) but NeoFrame() and uPD499ASetTicks() seem to be coming from fbalpha/src/burn/drv/neogeo/...

I'm running Arch Linux and RetroArch with cores downloaded through it's menu.

barbudreadmon commented 7 years ago

It crashes at start ?

There was no commit for 3 days (and i don't think the fix for android 3 days ago is related to this crash), so it's pretty weird it started only today.

Your romset is up to date ?

d-egan commented 7 years ago

Crap, my bad. I was still on the 0.2.97.39 set. I've scanned/fixed and now everything is working.

It didn't look like there were any fixes for the roms I was playing (though i let it delete my save states) so I'm surprised it made a difference. Guess I still don't understand rom sets.

Thanks for the help

dankcushions commented 7 years ago

It didn't look like there were any fixes for the roms I was playing (though i let it delete my save states) so I'm surprised it made a difference. Guess I still don't under stand rom sets.

see https://www.fbalpha.com/view/236/

Synchronize romsets with the latest MAME [Barry]

so this means that any changes in romsets between the mame versions used in fbalpha .39 and .40 will apply. this is probably what caught you out.

d-egan commented 7 years ago

Ok, now I'm not convinced.

Before updating my set I also moved them up through a few directories to save time when loading roms. from /data/games/roms/fbalpha/FB_Alpha_2016_Reference_Set_-_FBA_v0.2.97.39_ROMs/FB Alpha v0.2.97.39 Non-Merged/FB Alpha v0.2.97.39 roms/... to /data/games/roms/fbalpha/FB Alpha v0.2.97.39 roms/...

I tried moving them back and the crashes return.

There's also a file I found at /data/games/roms/fbalpha/FB_Alpha_2016_Reference_Set_-_FBA_v0.2.97.39_ROMs/FB Alpha v0.2.97.39 Non-Merged/FB Alpha v0.2.97.39 r Reading it with cat gives me a lot of junk(?) with a reference to wjammers. https://pastebin.com/kgt1LmP7

So is the real lesson not to have a stupidly long path?

d-egan commented 7 years ago

Also deleting that file allows me to play non Neo Geo games again. Loading a rom recreates that file but the crashes only return after I load a Neo Geo game.