On 12/01/2013 10:40 PM, Jeff Janes wrote:
On Wed, Nov 27, 2013 at 9:40 AM, Jeff Janes <jeff.ja...@gmail.com> wrote:

The commit 04eee1fa9ee80dabf7 of this series causes a self-deadlock in the
LWLock code during the operation below, with it trying to take
an LW_EXCLUSIVE on a high, even-numbered lockid when it already holds the
same lockid.

CREATE INDEX planet_osm_ways_nodes ON planet_osm_ways USING gin (nodes)

It happens pretty reliably using osm2pgsql.

I will try to come up with a simple reproducible demonstration, and stack
trace, over the weekend.

Whatever the problem, it seems to have been fixed in ce5326eed386959aa,
"More GIN refactoring".

That's good, I guess :-). Thanks for the testing. Did you import the full planet.osm? I tried with a subset containing just Finland, but didn't see any problems.

- Heikki

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