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Subject: RE: strace utility
Date: Wed, 3 Jan 2007 09:35:18 -0800
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Thread-Topic: strace utility
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From: "Larry Scheer" <larry.scheer@onstor.com>
To: "Larry Scheer" <larry.scheer@onstor.com>,
	"Wencheng Chai" <wencheng.chai@onstor.com>,
	"dl-Software" <dl-software@onstor.com>

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Wenchang,
   Sorry I was so terse with my initial reply. I was heading out the =
door and couldn't spend much time on my first response. Knowing that you =
are very resourceful I was hoping my email would at least get you =
pointed in the direction you wanted to go.

OpenBSD's tracing tool is a two step process that uses ktrace to trace a =
program and then kdump to read the output.

The OpenBSD man pages can be found at http://www.openbsd.org. Click on =
the Manuals link on the home page and search for
ktrace and/or kdump on the manuals page.

I have used ktrace occassionally on our filer to debug problems. Its UI =
is clunky compared to other tracing tools. Ktrace creates a file when =
you run it that must be read with kdump. I doubt a wiki page exists on =
how to use it. That would be another nice-to-have piece of =
documentation.

Larry


-----Original Message-----
From: Larry Scheer
Sent: Tue 1/2/2007 7:40 PM
To: Wencheng Chai; dl-Software
Subject: RE: strace utility
=20
OpenBSD has ktrace. Look at the OpenBSD man pages on how to use it.

_____________________________________________
From: Wencheng Chai=20
Sent: Tuesday, January 02, 2007 7:35 PM
To: dl-Software
Subject: strace utility


    It looks like that we there is no "strace" utility in our bsd =
distribution, strace is a very useful tool
    that can be used to debug daemon process. Could we add this tool in =
our bsd?

    Wencheng


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<P><FONT SIZE=3D2>Wenchang,<BR>
&nbsp;&nbsp; Sorry I was so terse with my initial reply. I was heading =
out the door and couldn't spend much time on my first response. Knowing =
that you are very resourceful I was hoping my email would at least get =
you pointed in the direction you wanted to go.<BR>
<BR>
OpenBSD's tracing tool is a two step process that uses ktrace to trace a =
program and then kdump to read the output.<BR>
<BR>
The OpenBSD man pages can be found at <A =
HREF=3D"http://www.openbsd.org">http://www.openbsd.org</A>. Click on the =
Manuals link on the home page and search for<BR>
ktrace and/or kdump on the manuals page.<BR>
<BR>
I have used ktrace occassionally on our filer to debug problems. Its UI =
is clunky compared to other tracing tools. Ktrace creates a file when =
you run it that must be read with kdump. I doubt a wiki page exists on =
how to use it. That would be another nice-to-have piece of =
documentation.<BR>
<BR>
Larry<BR>
<BR>
<BR>
-----Original Message-----<BR>
From: Larry Scheer<BR>
Sent: Tue 1/2/2007 7:40 PM<BR>
To: Wencheng Chai; dl-Software<BR>
Subject: RE: strace utility<BR>
<BR>
OpenBSD has ktrace. Look at the OpenBSD man pages on how to use it.<BR>
<BR>
_____________________________________________<BR>
From: Wencheng Chai<BR>
Sent: Tuesday, January 02, 2007 7:35 PM<BR>
To: dl-Software<BR>
Subject: strace utility<BR>
<BR>
<BR>
&nbsp;&nbsp;&nbsp; It looks like that we there is no &quot;strace&quot; =
utility in our bsd distribution, strace is a very useful tool<BR>
&nbsp;&nbsp;&nbsp; that can be used to debug daemon process. Could we =
add this tool in our bsd?<BR>
<BR>
&nbsp;&nbsp;&nbsp; Wencheng<BR>
<BR>
</FONT>
</P>

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