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Date:      Wed, 4 Dec 2013 18:29:39 +0800 (SGT)
From:      Prashanth Kumar <pra_udupi@yahoo.co.in>
To:        freebsd-dtrace@freebsd.org
Subject:   dtrace usdt
Message-ID:  <1386152979.40087.YahooMailBasic@web192605.mail.sg3.yahoo.com>

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Hi
Tried running the dtrace usdt example code from freebsd dtrace userland wik=
i page.
(https://wiki.freebsd.org/DTrace/userland).

If run standalone the program segfaults.
 # ./db=20
Bus error (core dumped)=20

If run with dtrace

  # dtrace -s db.d -c ./db
dtrace: script 'db.d' matched 2 probes
CPU     ID                    FUNCTION:NAME
  0  43245                 main:query-start Query: SELECT * FROM apples

the program hungs after printing the first probe.

Had to use the following command
  # env WITH_DTRACE=3D1 make

to build the program. Is there any other steps that i have missed to make t=
he program work?.
This was tested on FreeBSD 10BETA1 - i386.

regards
Prashanth



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