samba 2.0.6 and FreeBSD 3.4-STABLE (was kern/16605, 3.4-RELEASE problem)

[Mike Squires]

> 
> >Number:         16605
> >Category:       kern
> >Synopsis:       samba 2.0.6 under 3.4-RELEASE can't open buffers

Currently running 3.4-20000214-STABLE.

Compiled samba 2.0.6 from /usr/ports; smbpasswd dies with a segmentation
error but appears to complete writing the server SID and smbpasswd file
(NT domain authentication works).  Tried complete uninstall, including
manual deletion of all samba components, recompile, and re-install, still
coredumped.  However, this does not affect operation in this case and is
probably something I've done or left undone.

The following fixes from Terry Dwyer have increases samba 2.0.6 speed to the
same as 3.3-RELEASE using TESTNET.EXE, about 1.6MB/sec for a 32MB file in
both cases.

Benchmarks were run from a Win 2000 Profession box using NT 4 domain
authentication (encrypted passwords).

In smb.conf these are added:

#per tdwyer at io.telstra.com.au
# 3.4-STABLE
   socket options = TCP_NODELAY IPTOS_LOWDELAY IPTOS_THROUGHPUT
   read raw = yes
   write raw = yes
   shared mem size =  6291456

In the kernel config file the following are:

options 	"SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)"
options 	SHMMAXPGS=2048		

The disk system is an untuned HV diff SCSI system using ST410800WD drives
in both cases, with dual PPro200's.

Mike Squires