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rpcdebug(8)                            System Manager's Manual                           rpcdebug(8)



NAME
       rpcdebug - set and clear NFS and RPC kernel debug flags

SYNOPSIS
       rpcdebug -vh
       rpcdebug -m module
       rpcdebug -m module -s flags...
       rpcdebug -m module -c flags...

DESCRIPTION
       The  rpcdebug  command allows an administrator to set and clear the Linux kernel's NFS client
       and server debug flags.  Setting these flags causes the kernel to emit messages to the system
       log in response to NFS activity; this is typically useful when debugging NFS problems.

       The  first  form  in  the synopsis can be used to list all available debug flags.  The second
       form shows the currently set debug flags for the given module.  The third form  sets  one  or
       more flags, and the fourth form clears one or more flags.

       The value all may be used to set or clear all the flags for the given module.

OPTIONS
       -c     Clear the given debug flags.

       -h     Print  a  help  message  and  exit.  When combined with the -v option, also prints the
              available debug flags.

       -m module
              Specify which module's flags to set or clear.  Available modules are:

              nfsd   The NFS server.

              nfs    The NFS client.

              nlm    The Network Lock Manager, in either an NFS client or server.

              rpc    The Remote Procedure Call module, in either an NFS client or server.

       -s     Set the given debug flags.

       -v     Increase the verbosity of rpcdebug's output.

FILES
       /proc/sys/sunrpc/{rpc,nfs,nfsd,nlm}_debug
              procfs-based interface to kernel debug flags.

SEE ALSO
       rpc.nfsd(8), nfs(5), syslogd(8).

BUGS
       Bugs can be found or reported at http://nfs.sf.net/.

AUTHOR
       Program by Olaf Kirch <okir AT suse.de>  and  <frederic.jolly AT bull.net>.   Manpage  by  Greg
       Banks <gnb AT melbourne.com>.



                                             5 Jul 2006                                  rpcdebug(8)