Regression: Sky Fighter [NPUB30144] freezes when starting a level (#12544, #12523)

[Schroedingers-Cat]

Quick summary

Sky Fighter [NPUB30144] freezes when starting a level with the error E VM: Access violation reading location 0x0 (unmapped memory).

Details

Since rpcs3-v0.0.23-14080-ee87fdc8, I'm unable to start a level in Sky Fighter [NPUB30144]. After the loading screen is over, directly at the start of the level, there'll be a freeze with the error message E VM: Access violation reading location 0x0 (unmapped memory) in the console.

While previous versions could still freeze randomly in a level, this was never reproducible and not directly at the start of a level. Since 14080, the freeze happens consistently at the start of a level.

Build with regression

v0.0.23-14080-ee87fdc8

Attach two log files

Log from rpcs3-v0.0.23-14080-ee87fdc8_win64 directly freezing when loading the tutorial level:
RPCS3.log.gz
Log from rpcs3-v0.0.23-14068-a74d3005_win64 with no freeze at level start but a random freeze several minutes in the tutorial level: RPCS3.log.gz

Attach capture files for visual issues

No response

System configuration

Win 10
AMD Ryzen 9 3950X
AMD Radeon RX 6900 XT (v22.8.1)
128GB RAM

Other details

No response

[kunit1]

PR that broke it: 12544

[AniLeo]

Either #12544 or #12523 (marked as broken)
Adding @elad335

[elad335]

Try accurate SPU GETLLAR in debug tab.

[Triticum0]

Using Accurate SPU DMA fixes the issue of freezing when starting a level

[elad335]

I think it should be closed, use accurate GETLLAR from now. Maybe if you tried many many times you had experience a freeze when starting a level too. This behavior changed because performance has been improved affecting the race condition.

[Triticum0]

@elad335 I tested with accurate GETLLAR and it does fix the freeze. Only SPU DMA Fixes the freeze also the error code has changed:
E VM: [SPU[0x4000100] S5CellSpursKernel4] Access violation writing location 0x42617400 (unmapped memory)