Re: stack smashing detected

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Ana Carolina Brito de Almeida" <anacrl(at)ig(dot)com(dot)br>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: stack smashing detected
Date: 2008-04-15 15:38:16
Message-ID: 14992.1208273896@sss.pgh.pa.us
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"Ana Carolina Brito de Almeida" <anacrl(at)ig(dot)com(dot)br> writes:
> I'm trying test a version extended of Postgresql, but when I run a command
> after 9 times, I receive this message in psql:
> ***stack smashing detected***
> And Log said that postgres terminated with signal 6.
> I increased buffer to 120MB and the linux buffer (shmmax) to 2GB.
> What value can I put to max_connections?

You're thinking in the wrong terms entirely. This is a bug that you
need to find/fix in whatever your extension is. I'd look for things
like overrunning a fixed-size array allocated as a local variable.

regards, tom lane

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