[issue1291] NFS + HAMMER => stalls

Matthew Dillon dillon at apollo.backplane.com
Wed Feb 18 23:28:39 PST 2009

:Thomas Nikolajsen <thomas.nikolajsen at mail.dk> added the comment:
:>Does pinging the box over the network unstick it?  If it does,
:>please report the interface adapter.
:No, ping works, but it doesn't unstick build.
:Same goes for typing in ssh session from NFS client to NFS server.
:But `ls -d NFS' does unstick build.
:It doesn't seem like a general network problem; but I could be wrong.
:NFS server uses xl(4) and client rl(4) NICs;
:could change to other NICs, e.g. em(4).
: -thomas

    Hmm.  Sounds like it could be a wakeup race in NFS, then.  I have
    not experienced it yet.  I may have to try to reproduce the problem
    over here.

    When you ran the buildworld what bits were being accessed via NFS?
    /usr/src ?  /usr/obj ?  Both?

					Matthew Dillon 
					<dillon at backplane.com>

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