From: rda AT eng DOT cam DOT ac DOT uk
Date: Tue, 18 May 93 20:25:11 CST  
Sender: rda AT eng DOT cam DOT ac DOT uk
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: RE: allocating more than ~20Mb memory

In Message 18 May 93 17:59:06 SAT, LIP AT za DOT ac DOT wits DOT ee DOT underdog writes:

>Hi,
>I have successfully installed DJGPP GCC 2.3.3 on a Novell Netware 3.11
>server.  It works fine except that the pagetest sample program
>crashes if I say try: Pagetest 30000
>on the
>"Init page 6207"
>with the screen full of flashing colourfull characters except for
>the "Init Page 6207" in the bottom LH corner of the screen.  I am
>using QEMM386 6.0 on a 486DX33 which has 8 megs of memory (2Mb of
>which is a ramdisk).  The above is with SET GO32tmp=I:\   where "I"
>is a network drive with ~ 700Mb of free disk space.  Pagetest works
>fine with a parameter of say 20000.  30000 would be 7500 pages
>(30000/4).  This is a consistent error (message) and does not seem to
>be a network problem.  The file created on I is:
>I:\page1756aa.aaa   20 787 200  (the file size)
>This was merely a test to see how slow VM re the Network server would
>be.
[...deleted]

I have a similar setup, but we now _always_ use local drives for swapping,
not Network drives - this is after we had several problems with certain
programs and paging causing hangups, also local swap is usually faster.

However, this is not the same problem, I just tried out
-> pagetest 30000
on two machines, one failed at page 6140 in the manner described above, one
completed fine. Both machines are 486's (one DX2-50, one DX2-66) with 8Meg
ram. Both are running QEMM (standard setup for this network) - so that's not
the problem. DJGPP is all run from the network drives, so both machines had
same setup for that.

I suspect some wierd config problem - maybe hardware specific as the two
machines I've so far tried are different manufacturers. I might run more
tests on a range of machines - I'll let you know any interesting results.

-ray