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Date:      Tue, 6 Aug 2013 14:29:28 -0400
From:      Mark Johnston <markj@freebsd.org>
To:        "Sevan / Venture37" <venture37@gmail.com>
Cc:        freebsd-dtrace@freebsd.org
Subject:   Re: PostgreSQL+DTrace on FreeBSD
Message-ID:  <CAMw1wOwyBRm335=VLs0uHwb4O%2B9RTb1-xTuVc1S611xCsAnvMA@mail.gmail.com>
In-Reply-To: <52013E50.9020808@gmail.com>
References:  <20130727235103.GA11294@charmander.uwaterloo.ca> <51F72CBC.8060502@gmail.com> <20130730143255.GA1757@charmander> <52013E50.9020808@gmail.com>

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On Tue, Aug 6, 2013 at 2:20 PM, Sevan / Venture37 <venture37@gmail.com> wrote:
> On 30/07/2013 07:32, Mark Johnston wrote:
>>
>> Sweet! Let me know if you have problems using them - I only did some
>> basic sanity testing.
>
>
> Hi Mark,
> I don't see the probes on r253997 again.

What have you done since you last saw the probes? Reboot? Restart postgres?

If you rebooted, you'll need to change the mode on /dev/dtrace/helper again,
and the mode needs to be correct before postgres starts. You can set the
mode in /etc/devfs.conf I guess, but ensure that the DTrace modules are already
loaded when rc runs (i.e. by adding dtraceall_load="YES" to your loader.conf).



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