topic Re: Samba CIFS error: no buffer space available in Operating System - HP-UX

Samba CIFS error: no buffer space available

enrico.nic — Wed, 13 Jul 2005 11:26:53 GMT

Hi

We have an HP 9000 rp3410, HP-UX 11.11, with HP samba release 3.0.7.

Recently I am finding this error in the samba log file:
[2005/07/12 16:36:51, 0] smbd/server.c:open_sockets_smbd(382)
open_sockets_smbd: accept: No buffer space available

When this error comes up, the file sharing through samba becomes really slow.

The network parameter tcp_conn_request_max seems to be involved in such problems, but actually it is set to a reasonably high value, i.e. 4096.
# ndd -get /dev/tcp tcp_conn_request_max
4096

I really don't know what to try next. Maybe something in "socket options" of the smb.conf file ?
Has anybody a suggestion about a possible solution ?

Thank you

Enrico

Re: Samba CIFS error: no buffer space available

Steve Steel — Thu, 14 Jul 2005 07:33:22 GMT

Hi

This is not really serious

1)Try setting "strict locking = no" in the smb.conf.

2)Make sure your are up2date with your software level

Steve Steel

Re: Samba CIFS error: no buffer space available

enrico.nic — Thu, 14 Jul 2005 08:39:27 GMT

Hi

I've looked into the samba book from Andrew Tridgell, and it says that the default value of the option
strict locking
should be "no".
In the meantime, I tried to set the "wins server" option in smb.conf (the book says it is a possible cause of delay in file share browsing), as we have a wins server in our LAN.
Another change was in the socket options:
socket options = IPTOS_LOWDELAY TCP_NODELAY

but after that the error reappeared ... even with a new one:
[2005/07/14 13:51:35, 0] lib/util_sock.c:set_socket_options(202)
Failed to set socket option SO_KEEPALIVE (Error Invalid argument)
[2005/07/14 13:51:35, 0] lib/util_sock.c:set_socket_options(202)
Failed to set socket option IPTOS_LOWDELAY (Error Invalid argument)
[2005/07/14 13:51:35, 0] lib/util_sock.c:set_socket_options(202)
Failed to set socket option TCP_NODELAY (Error Invalid argument)
[2005/07/14 13:51:35, 0] lib/util_sock.c:get_peer_addr(1000)
getpeername failed. Error was Invalid argument
[2005/07/14 13:51:44, 0] smbd/server.c:open_sockets_smbd(382)
open_sockets_smbd: accept: No buffer space available
[2005/07/14 13:52:01, 0] smbd/server.c:open_sockets_smbd(382)
open_sockets_smbd: accept: No buffer space available

I really don't know what to try next ..

At the op. system level, I have applied the latest patch bundle with all subsequent patches proposed by the "bastille" software.

Enrico