[CRIU] Android port

[CRIU criu]

Hello,

I'm porting CRIU on Android.

When I run CRIU, it fails with the following
Error (mount.c:601): FS mnt ./cache dev 0x1f00002 root / unsupported id 28


This is what I found in dump.log

(00.096659)     type ext4 source /dev/block/mtdblock0 mnt_id 0x26 s_dev
0x1f00000 / @ ./system flags 0x200001 options data=ordered
(00.096844)     type ext4 source /dev/block/mtdblock1 mnt_id 0x27 s_dev
0x1f00001 / @ ./data flags 0x406 options data=ordered
(00.097010)     type ext4 source /dev/block/mtdblock2 mnt_id 0x28 s_dev
0x1f00002 / @ ./cache flags 0x406 options data=ordered

As seen, all (mtdblock*) is ext4 based, but CRIU complains about "cache"
partition. Any clue as to why this is the case?
I don't see ext4 in "static struct fstype fstypes[]"

-Lilo
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