xemu
xemu copied to clipboard
xemu-project
Titles sensitive to HDD cache corruption
Bug Description
These titles are known to have issues with potential HDD cache corruption:
- https://xemu.app/titles/4d530004/#Halo-Combat-Evolved - Black screen on loading into maps
- https://xemu.app/titles/4d530017/#MechAssault - Mission load fail, return to main menu
- https://xemu.app/titles/4d53006b/#MechAssault-2-Lone-Wolf - Stuck at intro FMV or boot looping
- https://xemu.app/titles/5443000d/#Ninja-Gaiden-Black
- https://xemu.app/titles/49470018/#JSRF-Jet-Set-Radio-Future - Stuck at loading screen
- https://xemu.app/titles/4d570021/#Unreal-Championship-2-The-Liandri-Conflict - "Damaged disk" error prior to round start
- https://xemu.app/titles/545100f8/#Full-Spectrum-Warrior-Ten-Hammers - Stuck at loading screen
HDD cache can become corrupt for a number of reasons, for example:
- xemu is closed (either by user choice or xemu crashing) while the title is writing to the disk, analogous to power loss on a real Xbox.
- xemu may have corrupted memory or HDD contents unintentionally while the cache was being written
xemu crashing or corrupting the cache should be tracked separately and fixed, but the title's handling of corrupt cache is likely not an emulator issue.
The instances in this list can be resolved either by clearing cache partitions (some dashboards provide this feature) or by using a blank HDD image (available on https://xemu.app/docs)
Expected Behavior
Titles should tolerate corrupt cache, but there may be bugs in their handling even on real hardware. We need more information to be sure, but it appears xemu is emulating hardware behavior correctly.
xemu Version
N/A
System Information
N/A
Additional Context
No response
Would it be worth just clearing the cache on xemu open? I feel like xemu crashing (ie basically a power outage to an Xbox) would cause cache corruption in concept anyway, so it may make less sense to clear it on exit, and just do it on open that way it's always being cleared
Ninja Gaiden Black seems to be another one and a good reason to save regularly using multiple slots. A few times when loading the game one of the saves would become unusable but with other save slot in the same area I could continue playing.
Would it be worth just clearing the cache on xemu open?
@MasonT8198 Not a bad idea, but that would be a departure from how a real Xbox works, and xemu is trying to faithfully emulate Xbox behavior.
Ninja Gaiden Black seems to be another one and a good reason to save regularly using multiple slots.
I'll add NGB to the list. What is the behavior of the game that is fixed by clearing cache, so I can add a description?
Save file corruption is a separate issue.
Ninja Gaiden Black seems to be another one and a good reason to save regularly using multiple slots.
I'll add NGB to the list. What is the behavior of the game that is fixed by clearing cache, so I can add a description?
Save file corruption is a separate issue.
At the time (few months ago) nothing fixed it unless I used a different save slot or a new empty HDD but need to replay the game again to see if my mind isn't playing tricks concerning the clear cache part.
You can add Unreal Championship 2 the Liandri Conflict to this list - Currently it runs almost perfectly, but almost always crashes after 5-10 minutes. After crashing the game gets a 'damaged disk' error any time a round is about to start (until you start with a clean hdd image again)
