dtrace problem?
Alexander Leidinger
Alexander at Leidinger.net
Sun May 23 18:09:05 UTC 2010
On Fri, 21 May 2010 20:31:17 -0700 Marcus Reid <marcus at blazingdot.com>
wrote:
> On Fri, May 21, 2010 at 07:54:44PM -0700, Kevin Oberman wrote:
> > > Date: Fri, 21 May 2010 18:48:17 -0700
> > > From: Marcus Reid <marcus at blazingdot.com>
> > > Sender: owner-freebsd-stable at freebsd.org
> > >
> > > On Fri, May 21, 2010 at 09:22:17AM +0300, Nikolay Denev wrote:
> > > > On May 21, 2010, at 9:03 AM, Marcus Reid wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Running a recent RELENG_8 (FreeBSD 8.1-PRERELEASE #0: Tue May
> > > > > 18 23:37:37 PDT 2010), I'm having a problem using dtrace.
> > > > > For every .d file I attempt to compile, I get:
> > > > >
> > > > > dtrace: failed to compile script test.d:
> > > > > "/usr/lib/dtrace/psinfo.d", line 37: syntax error near "uid_t"
> > > > >
> > > > > This is my first attempt to use dtrace, so I can't be sure if
> > > > > it worked before. It happens with some scripts that can be
> > > > > assumed to be valid, so it's not just me. Is it broken for
> > > > > anyone else?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Marcus
> > > >
> > > > Hi,
> > > >
> > > > Have you rebuilt your kernel as described here :
> > > > http://wiki.freebsd.org/DTrace
> > > >
> > > > I was once getting "uid_t" errors when my kernel was not
> > > > compiled with "WITH_CTF" option.
> > >
> > > Yes, that would probably be it. The handbook is explicit about
> > > building with WITH_CTF=1, so I put it in make.conf.
> > >
> > > http://www.freebsd.org/doc/en/books/handbook/dtrace-enable.html
> > >
> > > Thanks, I'll rebuild without it.
> >
> > I believe WITH_CTF=1 would probably be placed in /etc/src.conf.
>
> Ah, right you are. That is, if world could be built with
> 'WITH_CTF=1'. That appears to be where my breakage was; you have to
> build kernel with it set but world without it.
Correct. And additionally: you have to specify it at the command line.
Putting it into src.conf or into the kernel config only works on a
recent 9-current.
Bye,
Alexander.
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