Re: How to debug a triple fault at startup?

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On 22.06.2009, at 03:58, Michael Crawford <mdcrawford@xxxxxxxxx> wrote:

I'm not completely certain, but I think I get a GPF whenever trying to
output text to the screen once interrupts have been enabled.

That is, before calling int 0x19, I can use printf from within
rombios.c, and my messages appear.  But from anywhere within the int19
code, they don't.

I definitely don't see the "Booting from hard drive message".

Does it break with -no-kvm as well? If so, use it and pass -d in_asm,cpu,int too. You can then check /tmp/qemu.log to see where things go wrong.

Alex


Mike
--
Michael David Crawford
mdcrawford at gmail dot com

  GoingWare's Bag of Programming Tricks
     http://www.goingware.com/tips/
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