I know that you have these tests already, but to the set:
GOGEAR HDD6320/00 --> PP5022B, Disk: (original) Toshiba MK3006GAL
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1) about 70 mismatches on unaltered.mi4,
2) no mismatches on rockbox.mi4 so workaround works,
3) dma.mi4 hangs Rockbox on the logo, but it is known and target specific.
Packard Bell Vibe 500 --> PP5020D, Disk: (not original) Toshiba MK2008GAL, mode: UDMA 2
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1) about 30 mismatches on unaltered.mi4,
2) no mismatches on rockbox.mi4 so workaround works,
3) works ok for me, building database and using it without surprises, playback and everything works. Everything looks stable.
Ipod 5.5G --> PP5022C, Disk: (not original) Toshiba MK6028GAL, mode: UDMA 2
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1) about 30 mismatches on unaltered.mi4,
2) no mismatches on rockbox.mi4, workaround works,
3) works good for me, building database and using it without surprises, playback and everything works. Everything is stable.
i'm using a Nano 1.gen and i'm getting an error with an without dma.
Dma is enabled only in "dma.ipod" file, but it may have a specific problems anyway (please read README.txt -> Exceptions). Important thing to us is: what the "pp502x_cache_test.rock" is showing on "unaltered.ipod" and "rockbox.ipod" files loaded. Could you try run it again, please? Can you give us your exact version of the CPU?
I'm waiting impatient to restore this functionality. It gives me much faster transfers over usb on my PP DAPs.