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From:	softbrek AT hathi DOT informatik DOT rwth-aachen DOT de (Hans-Bernhard Broeker)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Bug: read() in v1.12m4 (?)
Date:	26 Jun 1995 10:25:15 GMT
Organization:	RWTH -Aachen / Rechnerbetrieb Informatik
Lines:	25
References:	<1995Jun24 DOT 184323 DOT 9744 AT city DOT ac DOT uk>
Nntp-Posting-Host:	hathi.informatik.rwth-aachen.de
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway:	from newsgroup comp.os.msdos.djgpp

sl323 AT city DOT ac DOT uk (Mark Lewis) writes:

>HELP !  I've managed to get this go32 error from a simple bit of code.

>go32 version 1.12.maint3 Copyright (C) 1994 DJ Delorie
>This image has a buggy read.s module.  Run DPMIFIX on it and try again.
>Unsupported DOS request at eip=1967
>eax=00003f08 ebx=00000008 ecx=00004000 edx=00000000 esi=00000000 edi=00000000
>ebp=7ffffd90 esp=7ffffd68 cs=d8 ds=48 es=48 fs=48 gs=38 ss=48 cr2=00009000
>Call frame traceback EIPs:
>  0x00001967
>  0x0000128d

This sounds like a library problem: read.s, the source file for the read()
function of the C-library, was not DPMI-compatible in some earlier version.
This has been fixed quite some time ago, and there was a small utility called
dpmifix that could fix it in readily linked executables by binary patching.
So: check if you have a correct version 1.12m3 (or m4) installation, and
esp. a correctly patched libc.a (did you run the *.bat files included in
112m[1-4].zip? they are there to patch the libc.a). 

Hope this helps a bit

Hans-Bernhard Broeker

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