Re: Write past chunk end? - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: Write past chunk end?
Date
Msg-id 20050728181322.GB2374@alvh.no-ip.org
Whole thread Raw
In response to Write past chunk end?  ("Magnus Hagander" <mha@sollentuna.net>)
List pgsql-hackers
On Thu, Jul 28, 2005 at 07:51:02PM +0200, Magnus Hagander wrote:
> I'm testing out the latest version of Palles ICU patch on win32, and I
> got the build syste mworking. But it no longer works when built - it
> used to...
> 
> When initdb:ing with this version and -E UNICODE, I get:
> WARNING: detected write past chunk end in Analyze Column 01472ED0

Search for a AllocSetContextCreate whose name is "Analyze Column";
somebody is writing more memory than allocated.

> Any ideas on how to debug this?

The problem is that it's detected in MemoryContextCheck, long after the
clobber occured.  You could set a watchpoint in gdb, I think.

-- 
Alvaro Herrera (<alvherre[a]alvh.no-ip.org>)
"Investigación es lo que hago cuando no sé lo que estoy haciendo"
(Wernher von Braun)


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