samba - Aug 2004 - Migrating from 2.2.8a to 3.0.5 / Failed to setup RT_SIGNAL_LEASE handler

I'm running Slackware 9.0 with a vanilla Linux kernel 2.4.25. Due to the
announced EOL for 2.2.x, I'm trying to migrate our Samba hosts to version
3.0.5. These Samba hosts serve shares mounted off a seperate NFS
fileserver.

All is going well, except I've started getting the following messages in
the smbd logs:

---- Start of snippet ----
[2004/08/11 09:59:30, 0] smbd/oplock_linux.c:linux_init_kernel_oplocks(289)
  Failed to setup RT_SIGNAL_LEASE handler
---- End of snippet ----

I've not changed anything in my smb.conf file as, according to the Samba
Guide chapter 'UPGRADING FROM SAMBA-2.X TO SAMBA-3.0.0', I've not
needed
to.

I've looked at the mailing list archive for the last couple of years and
there only appears to be one mention of this problem effecting Samba 3.0.x
- without resolution.

Any ideas, other than turning kernel oplocks off?

Thanks,

Mark
-- 
------------------------------------------------------
Mark Dixon                Email    : m.dixon@ucl.ac.uk
Systems Integration       Tel (int): 34371
Information Systems       Tel (ext): 020 7679 4371
University College London, UK
------------------------------------------------------

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Mark Dixon wrote:

| I'm running Slackware 9.0 with a vanilla Linux kernel 2.4.25.
| Due to the announced EOL for 2.2.x, I'm trying to migrate our
| Samba hosts to version 3.0.5. These Samba hosts serve shares
| mounted off a seperate NFS fileserver.
|
| All is going well, except I've started getting the
| following messages in the smbd logs:
|
| ---- Start of snippet ----
|   Failed to setup RT_SIGNAL_LEASE handler
| ---- End of snippet ----

Best guess is that smbd knows the kernel supports oplocks
but the failure is caused by the failure to register the
signal handler (perhaps due to the mounted nfs file system).

Ther relevant code is :

struct kernel_oplocks *linux_init_kernel_oplocks(void)
{
~   ...
~   act.sa_handler = NULL;
~   act.sa_sigaction = signal_handler;
~   act.sa_flags = SA_SIGINFO;
~   sigemptyset( &act.sa_mask );
~   if (sigaction(RT_SIGNAL_LEASE, &act, NULL) != 0) {
~   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
~      DEBUG(0,("Failed to setup RT_SIGNAL_LEASE handler\n"));
~      return NULL;
~   }
~   ....
}






cheers, jerry
- ---------------------------------------------------------------------
Alleviating the pain of Windows(tm)      ------- http://www.samba.org
GnuPG Key                ----- http://www.plainjoe.org/gpg_public.asc
"If we're adding to the noise, turn off this song"--Switchfoot
(2003)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFBIKxnIR7qMdg1EfYRAqIPAJ9jJxQ4VjIvfuI6lLqIl33KH8J8bgCgzOt9
gbpY3KVUrkRa43c2ItRp+c0=NvZs
-----END PGP SIGNATURE-----