Re: [PATCH] Report the query string that caused a memory error under Valgrind - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: [PATCH] Report the query string that caused a memory error under Valgrind
Date
Msg-id 030bd02c-06c0-4975-7b92-a36704f73532@enterprisedb.com
Whole thread Raw
In response to [PATCH] Report the query string that caused a memory error under Valgrind  (Onur Tirtir <Onur.Tirtir@microsoft.com>)
Responses RE: [EXTERNAL] Re: [PATCH] Report the query string that caused a memory error under Valgrind
List pgsql-hackers
On 31.01.23 15:00, Onur Tirtir wrote:
> We use Valgrind --together with the suppression file provided in 
> Postgres repo-- to test Citus extension against memory errors.
> 
> We replace /bin/postgres executable with a simple bash script that 
> executes the original postgres executable under Valgrind and then we run 
> our usual regression tests.
> 
> However, it is quite hard to understand which query caused a memory 
> error in the stack traces that has been dumped into valgrind logfile.
> 
> For this reason, we propose the attached patch to allow Valgrind to 
> report the query string that caused a memory error right after the 
> relevant stack trace.
> 
> I belive this would not only be useful for Citus but also for Postgres 
> and other extensions in their valgrind-testing process.

I can see how this could be useful.  But this only handles queries using 
the simple protocol.  At least the extended protocol should be handled 
as well.  Maybe it would be better to move this up to PostgresMain() and 
handle all protocol messages?




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