[THIN] Re: DOS program not working in Citrix
- From: "Jeremy Lee" <JLee@xxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Thu, 24 Jun 2004 09:25:02 -0500
I thought you weren't supposed to use Hyper-Threading on 2k servers.
For some reason our LAN Admin that is in charge of the Citrix servers
thinks he needs to use it. We have had problems with other old Dos
programs and we have told him to turn off hyper-threading but he won't
do it.
The machine does have 2 processors with hyper-threading enabled so the
machine thinks there is 4 processors. I used imagecfg from this site
http://www.robpol86.com/misc_pgs/imagecfg.php and here are my results:
C:\WINNT\system32\dllcache>imagecfg -u NTVDM.EXE
NTVDM.EXE contains the following configuration information:
Subsystem Version of 4.0
Image can only run in uni-processor mode on multi-processor systems
Image working set trimmed aggressively on small memory systems
Stack Reserve Size: 0x40000
Stack Commit Size: 0x1000
C:\WINNT\system32\dllcache>imagecfg -a 0x1 NTVDM.EXE
NTVDM.EXE contains the following configuration information:
Subsystem Version of 4.0
Image can only run in uni-processor mode on multi-processor systems
Image working set trimmed aggressively on small memory systems
Stack Reserve Size: 0x40000
Stack Commit Size: 0x1000
NTVDM.EXE updated with the following configuration information:
NTVDM.EXE contains the following configuration information:
Subsystem Version of 4.0
Image can only run in uni-processor mode on multi-processor systems
Image working set trimmed aggressively on small memory systems
Stack Reserve Size: 0x40000
Stack Commit Size: 0x1000
The program still hangs at OS2.exe. Do I need to do the same thing for
that executable?
-----Original Message-----
From: Mark Cook [mailto:mc@xxxxxxxxxx]
Sent: Thursday, June 24, 2004 9:05 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: DOS program not working in Citrix
Nah sorry, this predated Hyperthreading - at that level the OS is
totally
unaware of whether or not the additional CPU's are virtual (ie.
Hyperthreaded) or physical.
Mark
-----Original Message-----
From: Tim Mangan (new) [mailto:tmangan@xxxxxxxxxxxx]
Sent: 24 June 2004 15:00
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: DOS program not working in Citrix
That solution (affinity) sounds like you are running HyperThreading on a
2000 OS. If you disable HT on 2000 you solve that problem and a whole
lot
more. HT should only be enabled on XP and 2003.
tim
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf
Of Mark Cook
Sent: Thursday, June 24, 2004 3:52 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: DOS program not working in Citrix
Is the Citrix a Dual or Quad processor box ? If so, run the app, then
change the CPU affinity on the NTVDM.EXE process to only run on a single
processor - does that make a difference ???
I've seen this before with an old DOS app farmed out from a novell
server,
just hung on a Win2K server with dual CPU's, took one of the CPU's
offline
and it worked, put CPU back online but ran process with affinity set to
only
one CPU and it worked !
-----Original Message-----
From: Jeremy Lee [mailto:JLee@xxxxxxxxxx]
Sent: 23 June 2004 19:44
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: DOS program not working in Citrix
Just for a little more information. It will run on a test 2k3 box I
have.
There is this little DOS based program that one person in a remote
office
needs to run. It works fine on a XP based computer but on our citrix
servers it just hangs at the DOS prompt. All our citrix servers are
windows
2000. Is there anything that anyone knows of to get it to work on the
servers?
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