Date: Sat, 06 Mar 2010 18:55:07 +0200 From: Daniel Braniss <danny@cs.huji.ac.il> To: Robert Watson <rwatson@FreeBSD.org> Cc: freebsd-stable@freebsd.org Subject: Re: is dtrace usable? Message-ID: <E1NnxHP-00038C-BV@kabab.cs.huji.ac.il> In-Reply-To: <alpine.BSF.2.00.1003061508020.16631@fledge.watson.org> References: <E1Nnv0H-00020A-9M@kabab.cs.huji.ac.il> <alpine.BSF.2.00.1003061508020.16631@fledge.watson.org>
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> > On Sat, 6 Mar 2010, Daniel Braniss wrote: > > > link_elf_obj: symbol lapic_cyclic_clock_func undefined > > > > when trying > > kldload dtraceall this is with a fearly resent 8-stable > > > > I'm trying to help Rick Maclem debug the NSF/UDP problem, and I thought it > > would be a good chance to learn dtrace, but :-( > > Take a look at the DTrace configuration information here: > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/dtrace.html > > And here: > > http://wiki.freebsd.org/DTrace > > It looks like options KDTRACE_HOOKS may not be defined in your kernel > configuration, but there are some other details, such as WITH_CTF=1, that > you'll also need to make sure are appropriately set. > > Robert I did all that, but booted the wrong kernel, sorry for the noise danny
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