To: dtauritz AT wi DOT leidenuniv DOT nl (D.R.Tauritz)
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: Segmentation violations 
Date: Wed, 12 Oct 94 08:35:12 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>

Three questions:

	1. Is the traceback you posted the entire message you get?  Is
that 0x00000001 the only EIP in the traceback?  Did you try to use
symify to convert the traceback to human-readable line numbers (you have
to compile with -g for this to work)?

	2. (I'm not sure about this.)  In real-mode interrupt routines
you start with interrupts disabled, so that disable() in your irq handler
would be unnecessary (but harmless) in the real-mode case.  Likewise
the enable() near the exit--interrupts are automatially enabled when
you return from an ISR, because the FLAGS are popped from the stack.
I don't know if what you did is necessary and/or harmful in protected-
mode interrupt routine.  Anybody?

	3. Did you try to interpret that ``pointer 0xf000a001 at a00:1''
stuff?  If so, what variable does it point to/is address of?

Hope this will help.

	Eli