Can't actually use currently?

Posted Mar 9, 2025 10:42 UTC (Sun) by bmenrigh (guest, #63018)
Parent article: Filesystem support for block sizes larger than the page size

On kernel 6.13.5 I was able to make an XFS filesystem (to a file) with 8192 byte sector sizes but when I try to mount it via loopback (either with losetup or mount -o loop) I run into:

[ 3713.182037] XFS (loop0): Cannot set_blocksize to 8192 on device loop0

Or trying to specify losetup -b 8192:
[ 3770.934627] Invalid logical block size (8192)

Maybe I'm missing something? Otherwise the support is there in XFS but the support isn't in the the block layer (at least not the loopback part) to work.