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    SubjectRe: lockd: couldn't create RPC handle for (host)
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    On Sat, Dec 17, 2005 at 12:32:57AM -0500, Trond Myklebust wrote:
    > On Fri, 2005-12-16 at 18:58 -0500, Ryan Richter wrote:
    > > On Fri, Dec 16, 2005 at 06:49:05PM -0500, Trond Myklebust wrote:
    > > > On Fri, 2005-12-16 at 15:55 -0500, Ryan Richter wrote:
    > > > > Hi, nfs locking stopped working on my file server running 2.6.15-rc5
    > > > > today. All clients that try locking operations hang, and I get the
    > > > > message from the server:
    > > > >
    > > > > lockd: couldn't create RPC handle for w.x.y.z
    > > >
    > > > Points either to a client which is not responding to callbacks, or an
    > > > OOM situation on the server.
    > > >
    > > > Does 'rpcinfo -u w.x.y.z 100021' work from the server?
    > >
    > > No.
    > >
    > > $ rpcinfo -u jacquere 100021
    > > rpcinfo: RPC: Timed out
    > > program 100021 version 0 is not available
    > > zsh: exit 1 rpcinfo -u jacquere 100021
    > >
    > > So I see now lockd is not present on the client. But...
    > >
    > > $ rpcinfo -p jacquere
    > > program vers proto port
    > > 100000 2 tcp 111 portmapper
    > > 100000 2 udp 111 portmapper
    > > 100021 1 udp 32768 nlockmgr
    > > 100021 3 udp 32768 nlockmgr
    > > 100021 4 udp 32768 nlockmgr
    > > 100024 1 udp 867 status
    > > 100024 1 tcp 870 status
    > >
    > > So what does that mean?
    >
    > Looks to me as if port 111 is pingable (since you can talk to the
    > portmapper), but port 32768 is not. Are you using port filtering or
    > firewalling anywhere (on the client, server, or switches)?

    There's no filtering between the two. I get this on the machine itself:
    $ rpcinfo -u localhost 100021
    rpcinfo: RPC: Timed out
    program 100021 version 0 is not available
    zsh: exit 1 rpcinfo -u localhost 100021

    There's no lockd process running on this client machine anymore.

    On the server:

    $ rpcinfo -u localhost 100021
    program 100021 version 1 ready and waiting
    rpcinfo: RPC: Program/version mismatch; low version = 1, high version =4
    program 100021 version 2 is not available
    program 100021 version 3 ready and waiting
    program 100021 version 4 ready and waiting
    zsh: exit 1 rpcinfo -u localhost 100021

    Also neither machine is anywhere close to OOM.

    -ryan
    -
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