Date: Sun, 7 Nov 1999 17:11:39 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Frederic Cazenave <cazenave AT radar DOT mcgill DOT ca>
cc: djgpp AT delorie DOT com
Subject: Re: DPMI memory allocation 2
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On Thu, 4 Nov 1999, Frederic Cazenave wrote:

> The problen is beetween the interrupt and the write.
> The two parts work fine separately but most of the
> time when I try to write while some interrupts are
> treated my system crashes.

The code you've posted doesn't seem to include the portion that writes
the data.  Are you, by any chance, writing to a file from inside the
interrupt handler?  If so, this is a no-no: DOS is non-reentrant, so
you cannot safely call DOS functions from an interrupt handler.

Anyway, you should always post the complete crash message when you
report such problems.  The information included with the registers'
dump and the stack traceback is a big help in guessing what's wrong
with your program.