kern/139072: zfs marked as production ready but it used a deprecated checksum algorithm

[Daniel Grund]

>Number:         139072
>Category:       kern
>Synopsis:       zfs marked as production ready but it used a deprecated checksum algorithm
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 22 23:40:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Daniel Grund
>Release:        8.0-RC1
>Organization:
-
>Environment:
8.0-RC1
>Description:
According to http://bitbucket.org/osunix/osunix-gate/changeset/02e1ddcc9be7/ the default ZFS checksum algorithm in FreeBSD (fletcher2) is deprecated in OpenSolaris because some data losses might be overlooked.
>How-To-Repeat:

>Fix:
fletcher4 should also be the default for FreeBSD 8.0. At least this weakness should be documented for production ready filesystem.

>Release-Note:
>Audit-Trail:
>Unformatted: