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Re: sinval synchronization considered harmful

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Noah Misch <noah(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: sinval synchronization considered harmful
Date: 2011-07-26 17:52:09
Message-ID: 1311702683-sup-4401@alvh.no-ip.org (view raw or flat)
Thread:
Lists: pgsql-hackers
Excerpts from Tom Lane's message of mar jul 26 13:43:08 -0400 2011:

> Uh, yes.  I've lost count of the number of times I've seen people hit
> one-instruction-wide race condition windows, SIGSEGV crash based on
> accessing only one byte past the valid data structure, etc etc.

I think you need a better locking protocol on that counter of yours.

-- 
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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