| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | Misa Simic <misa(dot)simic(at)gmail(dot)com> |
| Cc: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>, pgsql <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: PG94RC1- plv8 functions - problem with input parameter length |
| Date: | 2014-12-01 18:02:47 |
| Message-ID: | 20141201180247.GA2456@alap3.anarazel.de |
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| Thread: | |
| Lists: | pgsql-general |
On 2014-12-01 16:20:54 +0100, Misa Simic wrote:
> We have just found that it creates problems on machines with ubuntu 14.10
> (pg94rc1) - we have tried to install 14.10 in different environments
> (cloud, xen, virtual box) - and everywhere problems happens...
I suggest running postgres under valgrind - it tends to be very useful
to analyze problems like this. To do so run valgrind like
valgrind --suppress
valgrind \
--suppressions=/path/to/source/postgresql/src/tools/valgrind.supp \
--trace-children=yes --track-origins=yes --read-var-info=yes \
/path/to/postgres/install/bin/postgres -D ...
You should compile postgres with --enable-cassert to debug.
> Other wierd thing problem hapens just if input parametar length is 200-255.
> 256 work fine.
That sounds a bit like it might be toast related. Maybe plv8's parameter
handling isn't entirely correct?
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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