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Date: Sun, 5 Oct 2008 00:18:07 -0700
From: Jos Backus <jos@catnook.com>
To: Tim Kientzle <kientzle@freebsd.org>
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Cc: Andrey Chernov <ache@nagual.pp.ru>, freebsd-current@freebsd.org
Subject: Re: firefox3-bin crashes near arc4random_buf()
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On Sat, Oct 04, 2008 at 05:49:06PM -0700, Tim Kientzle wrote:
> Jos Backus wrote:
> > Any suggestions on how to debug this?
> 
> First, you need to share the first items in the
> backtrace, as they're more likely to be correct.
> I agree with Andrey that it looks like there's
> some stack corruption, so it's hard to trust
> anything except the first couple of entries.

Okay, I'll do that tomorrow.

> You should also look at several independent core
> dumps and see how much the backtraces have in common.

So far the bottom-most frames have looked the same every time. I'll do some
more thorough comparisons and report the results.

> It might also be worth running it under ktrace,
> forcing the crash, then sharing the last few dozen
> lines from kdump output.

I'll try that, too.

Thank you, Andrey and Tim, for your help so far.

-- 
Jos Backus
jos at catnook.com