[Bug 192516] New: DTrace not yet supported on ARM

Ian Lepore ian at FreeBSD.org
Sat Aug 9 02:56:14 UTC 2014

On Fri, 2014-08-08 at 19:26 -0700, Rui Paulo wrote:
> On Aug 8, 2014, at 9:35, Ian Lepore <ian at FreeBSD.org> wrote:
> > On Fri, 2014-08-08 at 16:19 +0000, bugzilla-noreply at freebsd.org wrote:
> >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192516
> >> 
> >>            Bug ID: 192516
> >>           Summary: DTrace not yet supported on ARM
> >>           Product: Base System
> >>           Version: 11.0-CURRENT
> >>          Hardware: Any
> >>                OS: Any
> >>            Status: Needs Triage
> >>          Severity: Affects Many People
> >>          Priority: ---
> >>         Component: arm
> >>          Assignee: freebsd-arm at FreeBSD.org
> >>          Reporter: gnn at FreeBSD.org
> >> 
> >> Created attachment 145527
> >>  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=145527&action=edit
> >> Patch from gonzo@ to get DTrace running on ARM
> >> 
> >> DTrace is not currently supported on ARM.  There is a patch, attached, from
> >> gonzo@ which gets us started down this road.
> >> 
> > 
> > FYI, someone was working on this last year (Howard Su
> > <howard0su at gmail.com>) but I haven't heard from him in ages, either on
> > arm@ or on irc.  I'm afraid he got frustrated and wandered away because
> > we really didn't have the resources available to give him any support in
> > his efforts.  There are some old messages about it in the arm@ archives.
> What resources are you talking about?  There at least two active DTrace developers who could try to help him.  It's the first time I'm hearing about a DTrace patch and the first time I know about Howard Su working on it.

I'm talking about resources like asking for reviews of his patches (and
nobody ever did, myself included).  Answering questions, providing
advice, basic stuff that we're hard pressed to do, quite frankly.  I
could spend my entire waking existance doing just that kind of stuff,
and still not keep up, and also never get a line of code written.

If you didn't know, maybe you weren't reading arm@ back then...



He also used to hang out in #bsdmips and try to get arm-specific help
with his dtrace work, but the few of us who probably could have helped
were all too busy with our own ENOTIME situations to offer much.  (To
others reading along... oddly enough #bsdmips on efnet is the right
place to get arm-freebsd developer info, although ENOTIME is still a big

-- Ian

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