From mboxrd@z Thu Jan  1 00:00:00 1970
To: fernanbolando@mailc.net, 9fans@9fans.net
Subject: Re: [9fans] signal.h in APE for newbies
From: "Russ Cox" <rsc@swtch.com>
Date: Fri,  4 Jul 2008 11:54:04 -0400
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> Any chance this is some 9vx issue? I tried the test code below it
> worked in 9grid.jp ,but gave the following message in 9vx

You are caught in quite a tangled web.

The hardware gets a floating point trap,
Linux/BSD/OS X turns it into a SIGFPE,
vx32 turns it back into a hardware trap,
Plan 9 turns it into a note,
APE turns it back into a SIGFPE.

Unfortunately for you, vx32 does not do
a very good job turning SIGFPEs into the
correct hardware trap.  Someone needs to
go through the various systems and figure
out what the right mapping is from
info->si_code back to x86 exception code.
When I started to do this, I got very confused
and didn't care enough to muddle through.

Russ