Date: Sun, 05 Dec 2010 00:43:06 +0200 From: Andriy Gapon <avg@freebsd.org> To: Zhihao Yuan <lichray@gmail.com> Cc: Brandon Gooch <jamesbrandongooch@gmail.com>, freebsd-stable@freebsd.org, Navdeep Parhar <nparhar@gmail.com>, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: Fwd: Re: Fail to use Dtrace on FreeBSD 8.1-STABLE Message-ID: <4CFAC3FA.9050601@freebsd.org> In-Reply-To: <AANLkTinQ6j-fBvQsKAn-NwkR_LJUSesTYp75cM-KB3VV@mail.gmail.com> References: <20101123131353.GA7243@icarus.home.lan> <20101123132519.GA1426@icarus.home.lan> <4CEBC155.9090706@freebsd.org> <AANLkTimsa-YM6B_272U4gjZzt1Ce05LR4sQTz_AiHJCU@mail.gmail.com> <AANLkTimb-Kijj_%2BQ2%2BxKrjtP65Zx%2BJ7rUjEP4i0HZyu6@mail.gmail.com> <20101202002734.GA84177@icarus.home.lan> <AANLkTikcHwXWGz-hcpJfZ_cM73pgHKPgCm3bApf94gwE@mail.gmail.com> <AANLkTinReeg3Xr6=553jwp5jfHuZppOd%2B0v1DC_rAEQC@mail.gmail.com> <AANLkTi=-A2eJ7vNHUJGxViMEW%2BcGpzJ8g1vJe0d9B48E@mail.gmail.com> <AANLkTi=vp0UNuemjKJimTRMd35NxeADZ2-%2B0qLVG%2BKWJ@mail.gmail.com> <20101202022416.GA86118@icarus.home.lan> <4CF8FDC8.7050702@freebsd.org> <AANLkTimW-z%2B0GuUz8bQ33Le_JrYVChiSJ6r7b=r64gJQ@mail.gmail.com> <4CF97D6A.7020900@freebsd.org> <AANLkTikdsso-sw%2BC_pMGy%2BWjhLjp4G-6QOxHpyVE2i-6@mail.gmail.com> <4CFA23A7.3050604@freebsd.org> <AANLkTinQ6j-fBvQsKAn-NwkR_LJUSesTYp75cM-KB3VV@mail.gmail.com>
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on 05/12/2010 00:23 Zhihao Yuan said the following: > HAHAHAHA! It matters.... Not KBD, not DDB, only the DEBUG=-g option. It seems > like DTrace requires the symbols inside a kernel/program. Well, now my DTrace > works perfectly, and the examples on the wiki also work. The next step is to try > to use it to trace my program. SDT may help. I need to learn more. Thanks guys... Interesting, thank you very much for the investigation and report! And your persistence too! :) I will try to find time to investigate why this requirement has arisen or if it has always been present, just not documented. If it can be removed, then good; otherwise I will update the documentation at least. -- Andriy Gapon
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