Re: debugger question - Mailing list pgsql-hackers

<table border="0" cellpadding="0" cellspacing="0"><tr><td style="font: inherit;" valign="top">The OS is<br /><br
/>Fedora12.<br /><br /><br /><br /><br /><br /><br
/>-----------------------------------------------------------------<br/>Please visit <a href="http://NumberFest.com"
rel="nofollow"target="_blank">NumberFest.com</a> for educational number puzzles & mind exercises for all ages! And
pleasetell your friends about it. Thank You!<br /><br /><br />--- On <b>Mon, 4/12/10, tomas@tuxteam.de
<i><tomas@tuxteam.de></i></b>wrote:<br /><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left:
5px;padding-left: 5px;"><br />From: tomas@tuxteam.de <tomas@tuxteam.de><br />Subject: Re: [HACKERS] debugger
question<br/>To: "Murali M. Krishna" <murali1729@yahoo.com><br />Cc: pgsql-hackers@postgresql.org<br />Date:
Monday,April 12, 2010, 9:28 PM<br /><br /><div class="plainMail">-----BEGIN PGP SIGNED MESSAGE-----<br />Hash: SHA1<br
/><br/>On Mon, Apr 12, 2010 at 08:31:38PM -0700, Murali M. Krishna wrote:<br />> Hello:<br />> <br />> I am
brandnew to Postgresql.<br />> <br />> I ran the following commands.<br />> ./configure<br />> gmake<br
/>>su<br />> gmake install<br />> adduser postgres<br />> mkdir /usr/local/pgsql/data<br />> chown
postgres/usr/local/pgsql/data<br />> su - postgres<br />> /usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data<br
/>>/usr/local/pgsql/bin/postmaster -D /usr/local/pgsql/data >logfile 2>&1 &<br />>
/usr/local/pgsql/bin/createdbtest<br />> /usr/local/pgsql/bin/psql test<br />> <br />> I would like to start
usinggdb.<br />> <br />> What is the simplest way of doing this? I read the instructions<br />> on this
page<br/>> <br />> <a
href="http://sites.google.com/a/cs.berkeley.edu/cs186-fa09/home/assignments/assignment2/pggdb"
target="_blank">http://sites.google.com/a/cs.berkeley.edu/cs186-fa09/home/assignments/assignment2/pggdb</a><br/>>
<br/>> , but this is what I get.<br />> <br />> <br />> gdb) attach 1731<br />> Attaching to program:
/usr/local/pgsql/bin/postgres,process 1731<br />> ptrace: Operation not permitted.<br />> (gdb) break
cost_seqscan<br/>> Breakpoint 1 at 0x81cdf97: file costsize.c, line 163.<br />> (gdb) c<br />> The program is
notbeing run.<br /><br />Hm. Seems you got the right PID (gdb finds the executable after all).<br />Are you perhaps
runningunder SELinux? (i just boldly assumed some<br />GNU/Linux). Which distribution, which kernel version (there
seemsto be<br />a bug in 2.4-ish Linux kernels which manifests itself like that, but<br />that's quite a while ago).<br
/><br/>Next time, please tell us what OS is under you (although it might be fun<br />to watch people make wild guesses
:)<br/><br />Regards<br />- -- tomás<br />-----BEGIN PGP SIGNATURE-----<br />Version: GnuPG v1.4.6 (GNU/Linux)<br /><br
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