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Date: Sat, 20 Sep 2008 16:51:12 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: Michel Talon <talon@lpthe.jussieu.fr>, freebsd-stable@FreeBSD.org
Message-ID: <20080920215111.GI34468@dan.emsphone.com>
References: <20080920143952.GA16747@lpthe.jussieu.fr>
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X-OS: FreeBSD 7.1-PRERELEASE
User-Agent: Mutt/1.5.18 (2008-05-17)
Cc: 
Subject: Re: Problem with dtrace
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In the last episode (Sep 20), Michel Talon said:
> Still testing FreeBSD-7.1-beta encountered the following (perhaps
> to be expected) result with dtrace:
> 
> dtrace -m kernel  -> some output -> deadlock after a few seconds.
> 
> Less demanding tracing worked OK.

proc, profile, and syscall probes work fine for me; it seems to be just
fbt probes that cause problems.  Enabling any one will cause a trap 12
a few instructions inside the probed function when it gets called.

-- 
	Dan Nelson
	dnelson@allantgroup.com