UFS2 metadata checksums

[Wes Morgan]

On Thu, 23 Apr 2009, Ivan Voras wrote:

> Scott Burns wrote:
>
>> 2) Is there a demand for this in FreeBSD?
>
> Speaking for myself, I'd like it on the systems I maintain. (I'd also
> like a sysctl to ignore the errors, just in case :) ).

That's actually something ZFS could use if you ask me. In one instance I 
had some bad ram that was causing checksum errors (zfs is better than 
memtest for finding bad ram!), and I had to comment out the ECHKSUM error 
from the kernel to recover the pieces of the file that were reported 
corrupt.