Re: Sync Rep v17 - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: Sync Rep v17
Date
Msg-id 1298920622.12992.1763.camel@ebony
Whole thread Raw
In response to Re: Sync Rep v17  (Daniel Farina <daniel@heroku.com>)
List pgsql-hackers
On Thu, 2011-02-24 at 18:13 -0800, Daniel Farina wrote:

> I have also reproduced this. Notably, things seem fine as long as
> pgbench is confined to one backend, but as soon as two are used (-c 2)
> by the feature I can get segfaults.

Sorry that you all experienced this. I wasn't able to get concurrent
queue accesses even with -c 8, so I spent about half a day last week
investigating a possible spinlock locking flaw. That meant the code in
that area was untested, which is most obvious now. I guess that means I
should test on different hardware in future.

-- Simon Riggs           http://www.2ndQuadrant.com/books/PostgreSQL Development, 24x7 Support, Training and Services



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