[issue1291] NFS + HAMMER => stalls

[Matthew Dillon]

:New submission from Thomas Nikolajsen <thomas.nikolajsen at mail.dk>:
:
:Using 2.2.0-RELEASE w/ HAMMER patch from issue1276 or HEAD
:I experience stalls on NFS client, during e.g. buildworld,
:it just sits there doing no work; doing some operation on other NFS mount
:(same server) kicks client to continue buildworld.
:
:NFS server uses HAMMER for export, no PFS.
:
:NFS client uses NFS mount for /usr/src & /usr/obj &
:some other dirs, e.g. home dirs.
:
:Stalls are not very frequent, typically once during a buildworld.
:
:Problem seen rather infrequent on HEAD for a few months.
:
:How is this best debugged?
:
: -thomas

    Does pinging the box over the network unstick it?  If it does,
    please report the interface adapter.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>