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Date: Wed,  7 Sep 2011 10:05:34 -0400
Message-ID: <CADSkJJVYtF4VJ1DcspjHnmoq2PFycyOBnc=7YiyUsOGm2mhaOw@mail.gmail.com>
Subject: Re: [9fans] Plan 9 stack limit?
From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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On Wed, Sep 7, 2011 at 9:43 AM, Comeau At9Fans <comeauat9fans@gmail.com> wr=
ote:
> The app. =C2=A09vx will continue to run after it. =C2=A0It give a little =
dump thing on
> the screen with "1476 The.App fault 0x4 no segment" send to the shell
> account 9vx was started from. =C2=A0Running acid on the app does not appe=
ar to
> bring up a line of code that should really be having a problem (though of
> course if it's a bug I could be wrong).

regs() might be interesting, along with asm(*PC).
If I remember the output format correctly that looks
like it faulted accessing 0x4, which seems more likely
a null pointer deref than stack overflow.

>  What will be the difference in this version in regards to a problem
> like the one I'm seeing?

Probably nothing at all.  If 9vx had been crashing then
the difference would hopefully have been '9vx doesn't
crash anymore'.  :-)

Russ