The dmesg contains:
[ 538.728064] EXT4-fs warning (device dm-0): ext4_end_bio:316: I/O error writing to inode 23330865 (offset 0 size 8388608 starting block 812628)
An 8MB transfer will need at least 128 ring entries (TRB) even if the request
is a single contiguous memory block.
Are you using the patch that increases the ring size from 64 to 256?
David
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