InfoMagic Internet Tools 1995 April/Internet Tools.iso/dos_win/winsock/maillist/94-03.Z/94-03/text0126.txt

Text File | 1994-03-30 | 8.3 KB | 213 lines

In article <[e-mail]>, [e-mail] says:
>
>Mime-Version: 1.0
>Date: Wed, 09 Mar 94 14:25:05 PDT
>Lines: 18
>
>
>..
>> for lower memory. Chameleon allocates large blocks of memory in the
>> first 1MB. When that area is exhausted, Telnet gives the divide by 0
>> error. You should try to have as much conventional memory as possible
>> available before starting Windows....etc
>Charles:
>Since this is the case, would it make sense to have an include
>statement in EMM386 for B000-BFFF since I have a VGA monitor? According
>to my books this area is reserved for MDA, CGA, EGA and VGA text.
>I, like so many others, keep getting GPF's from MAIL.EXE. Do you see
>a connection with GPF's and the way Chameleon handles lower memory?
>------------------------------------------------------------

It certainly won't hurt to free up as much conventional memory as possible.
Unfortunatly, my S3 video uses this area even in VGA mode, so I can't
allocate it to EMM386. If you can, by all means do so.

I haven't been seeing GPFs myself. Just the divide by 0 in Telnet. And we
don't use Chameleon mail at my office so I can't address that issue.

There is a very good book called "Windows Internals" that has a chapter
about Windows' handling of memory. It's actually kind of scary. For
example, a DLL which has any FIXED segments, either code or data, will
get that memory allocated as low as possible in the linear memory space.
Windows will also PageLock these segments, which means they can't be
swapped out to disk. Very few DLLs actually need to have pagelocked code
or data and they certainly don't need it in the critical first megabyte.
But many people don't know about this, and define their data segments
FIXED in the DEF file. Maybe that's what happened with Chameleon.

Of course, since Chameleon needs to communication with the real-mode NDIS
driver (I'm assuming you have a direct network connection via an Ethernet
or Token Ring card) maybe this data DOES have to be in the first megabyte.
I just wish I could be sure that NetManage is being careful to only
allocate low memory when absolutely required.

I've spent most of the past 2 weeks investigating Windows memory management,
primarily because of the issues with Chameleon, and the more I find out,
the more depressed I become. We're trying to build a store-and-forward
mail system on top of Chameleon, and exhausting the first megabyte has
been a major stumbling block.

********************************************
* More than half the human beings who have *
* ever lived are alive today.              *
* So the experimental probibility of dying *
* is less than 50%.                        *
********************************************
From [e-mail] Wed Mar  9 22:56:56 1994
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Date: Wed, 9 Mar 94 21:56:56 +0100
From: [e-mail] (Matthias Weingart)
Message-Id: <[e-mail]>
Organization: private site
Sender: ses
References: <2km7je$[e-mail]>
Subject: Re: Winsock dosen't work on my computer!

In <2km7je$[e-mail]> [e-mail] (Zhandong Zhou) writes:
>The computer in my office is on network. It use odipkt and
>winpkt as paket driver. However, when I start tcpman.exe from
>windows, the computer tells me unable to load TCP.


>The batch file for loading the drivers is shown below:

>lh lsl
>lh smc8000
>rem lh ipxodi
>rem lh bnetx ps=infolabs
>lh odipkt 0x60 2 0x300
>lh winpkt 0x60

>The computer tells me that the packet driver is at 0x60 but use old
>interupt 0x7e. I tried both address in winsock TCP mamager, the
>computer just tell that TCP can't be loaded and winpkt can't be
>found.

Try the winsock.dll from Novell. It uses the tcpip.exe and wlibsock.dll
of LAN-Workplace for Windows.
You can get the files from ftp.novell.com.

Matthias

--
Matthias Weingart | [e-mail]
From [e-mail] Thu Mar 10 05:11:52 1994
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Date: Thu, 10 Mar 94 10:11:52 EST
From: [e-mail] (Harry Hochheiser)
Message-Id: <[e-mail]>
To: [e-mail]
Cc: [e-mail]
In-Reply-To: <[e-mail]> ([e-mail])
Subject: Re: Winsock for PC-NFS 5.0


>The latest release of WinSock is Patch ID (101128-03)  PC-NFS 5.0:
>Winsock jumbo patch rev. c
>
>
>Files included with this patch:
>
>    winsock.dll        15/02/94
>    wshelper.exe    15/02/94

Sounds like this is what i want.  Where can I get it?  I looked on
SunSite, and couldn't find it.  I'd appreciate any pointers you can
send.

    Thanks,

        Harry
--------------
Harry Hochheiser                [e-mail]
Department of Biomedical Engineering        [phone]
Massachusetts General Hospital            FAX:[phone]
From [e-mail] Thu Mar 10 11:05:39 1994
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Date: Thu, 10 Mar 94 11:08:16
Message-Id: <[e-mail]>
From: "MSG John A Junod" <[e-mail]>
Reply-To: <[e-mail]>
To: [e-mail]
Cc: [e-mail]
Subject: Re: Passive mode FTP?  Where can I find it?
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Mailer: <WS_GMAIL v1.0>

In reply to:
>My college has just beefed up its security and now requires passive ftp to
>access remote sites.  The ws_ftp does not support it and neither does QVT.

WS_FTP will support passive ftp sites within the next couple of
weeks.  Code is already written and delivered to me by Bob Stockwell.
Just have to integration and testing.

John
From [e-mail] Thu Mar 10 16:04:18 1994
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To: [e-mail]
Date: 10 Mar 1994 16:04:18 GMT
From: [e-mail] (Anton J Vuorilehto)
Message-Id: <2lnge2$[e-mail]>
Organization: Helsinki University of Technology
Sender: ses
References: <[e-mail]>, <[e-mail]>
Reply-To: [e-mail] (Anton J Vuorilehto)
Subject: Re: Chameleon memory management

In article <[e-mail]> [e-mail] writes:
>
>..
>> for lower memory. Chameleon allocates large blocks of memory in the
>> first 1MB. When that area is exhausted, Telnet gives the divide by 0
>> error. You should try to have as much conventional memory as possible
>> available before starting Windows....etc
>Charles:
>Since this is the case, would it make sense to have an include
>statement in EMM386 for B000-BFFF since I have a VGA monitor? According
>to my books this area is reserved for MDA, CGA, EGA and VGA text.
>I, like so many others, keep getting GPF's from MAIL.EXE. Do you see
>a connection with GPF's and the way Chameleon handles lower memory?
>------------------------------------------------------------
>Norbert Hoffmann
>St. Olaf College
>Northfield, MN 55057
>>
>
Hello,

There is a nice little program called win_wrap, which reserves
all of the free lower-memory and then frees 1k of it and runs
the required program, and finally frees rest of the lower
memory and exits.

Using this program I have been able to run lot more programs
and get rid the annoying windows crash every time I have telnet
sessions running and try to access NFS-drives through the network.

Give it a try...
(I have no idea were it is located, thou...)
-Anton Vuorilehto
 [e-mail]