From: sword7@speakeasy.org
Sent: Tuesday, August 13, 2002 9:37 PM
To: Info-VAX@Mvb.Saic.Com
Subject: TS10/VAX Updates - DELQA now worked.

Hello folks:

Good news!  We found a bug in SocketHandler function call in emu/socket.c 
file that left some unread buffer.  That cause the DELQA emulation to
stall until any key pressed on your console terminal.  Thank you to
Peter Svenson for report that.  I had to put 'do { ... } while (regs > 
0);' to make ensure that any unread not left during SIGIO interrupts.

After I fixed a bug, my DELQA emulation now worked very reliable without
any problems.  On OpenVMS 7.2, I was able downloaded a 34 megabytes
file into my emulator and it took 47 seconds to complete at constant 800 
KB/sec or 8 Mbps rate (Ethernet-like speed).

Only I have a problem with telnet session.  I attempted to telnet into my 
emulator.  It instantly was connected but login prompt did not appear.
I tried to type any key several times but OpenVMS did not response.  Ok,
I looked into tcpdump monitor (tcpdump -i tap0) and noticed that
endless loop ACK packets bounced forth and back at extremely high speed.  
That's why I was unable to use console terminal until I aborted the 
telnet session.  When I closed telnet session, all problems immediately 
disappeared.

However, I was able telnet and ftp outside of my emulator.  Also, I was 
able ftp into my emulator without any problem.  When I attempted to ftp 
into my emulator, OpenVMS instantly responsed with username prompt.
I tested traceroute and ping to my emulator or via.  OpenVMS instantly 
responsed at ping packets at approx. 1.0 ms - extremely short latency.
On OpenVMS side, I was able ping to my machine at approx 0.026 ms.

On NetBSD 1.5.2 operating system, I was able telnet into my emulator
without any problem.  Everything worked fine with both ftp and telnet.
I assume that a bug might be in TCPIP v5.0 (formerly UCX) that come with 
OpenVMS v7.2 operating system.  That bug does not like my Linux telnet.
:-(

Well, my latest copy of TS10 source codes was uploaded to my ftp site 
(ftp://ftp.firesword7.net/pub/ts10/develop).

Thank you.

-- Tim Stark

-- 
Timothy Stark	<><	Inet: sword7@speakeasy.org
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"For God so loved the world, that he gave his only begotten Son, that 
whosoever believeth in him should not perish, but have everlasting life.
Amen." -- John 3:16 (King James Version Bible)