From mboxrd@z Thu Jan  1 00:00:00 1970
To: alltom@gmail.com, 9fans@9fans.net
Subject: Re: [9fans] tip 9vx segfault on Ubuntu in Xen
From: "Russ Cox" <rsc@swtch.com>
Date: Tue,  1 Jul 2008 09:00:50 -0400
In-Reply-To: <326364c20806301953k7fa2ebf9i1c7f3049a210bf39@mail.gmail.com>
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> I have Ubuntu on a VPS (on Xen) and I'd like to install a Plan 9
> server using 9vx. 9vx tip compiles, but segfaults after the "256M
> memory" line (as does the precompiled binary, in the same place). I am
> tunneling to local X11 on OS X 10.5.3.
>
> I don't know how to debug this properly, but here is gdb output
> similar to what I saw in another report.

The seg faults are normal.  9vx handles them and continues.
To run under gdb you need to say

	handle SIGSEGV noprint nostop

so that gdb will let it keep going.

What behavior did you see when you weren't running under gdb?
If it was a panic, better to set a break point at panic.

Russ