Can't enable data integrity features

[rajatkateja]

I tried enabling the metadata integrity features using the following (from Documentation/filesystems/nova.txt): $> modprobe metadata_csum=1 data_csum=1 data_parity=1 wprotect=1 $> mount -t NOVA -o init /dev/pmem0 /mnt/pmem

However, when I look at dmesg, I see "nova: measure timing 0, metadata checksum 0, inplace update 0, wprotect 0, data checksum 0, data parity 0, DRAM checksum 0" which seems to imply that the data integrity features have not been enabled.

[luzh]

Could you try to remove any existing nova module and then modprobe?

1. umount /mnt/pmem
2. rmmod nova
3. modprobe nova metadata_csum=1 data_csum=1 data_parity=1 wprotect=1
4. mount -t NOVA -o init /dev/pmem0 /mnt/pmem

[rajatkateja]

That worked, thanks!