Crazy Taxi: Fare Wars (EU version) hangs (edit: hacky workaround applied)

[hrydgard]

It broke sometime between 1.18.1 and now (just quickly tested it). Blank screen shortly after choosing CT1 or CT2.

It's recent but not within the latest batch of changes.

Might be GE related, getting a zero display list warning.

Needs bisection.

[hrydgard]

Culprit confirmed: 58eaa3b

Will fix soon. Although I suspect we're papering over a deeper bug...

[hrydgard]

The code has been reorganized since that change (to support "async" GPU breakpoints) but I think it kinda worked by accident before. We're trying to run a display list that's in PSP_GE_DL_STATE_NONE, which shouldn't be enqueued. So the fact that such a display list is in the queue is likely the issue. I can easily work around this by not executing such a display list, but will investigate a little more.

Wait, there seems to be more going on .. it only works if DEBUG logging is on for sceGe???? No, it's even more inconsistent :/

[hrydgard]

Submitted a workaround that seems reliable and not too likely to break stuff. However this need deeper investigation, so I'm not closing.

[anr2me]

Those bad PC could also be due to corrupted (or uninitialized) data being passed, and the corruption might be happening somewhere else and unrelated to GE.

[hrydgard]

Sure, but I don't think that's what's happening here, I think it's a bug in our display list management somehow.

[sum2012]

Maybe related to #18331