Re: buildfarm: could not read block 3 in file "base/16384/2662": read only 0 of 8192 bytes

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Geoghegan <pg@bowt.ie>
Cc: Andres Freund <andres@anarazel.de>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2018-08-11T02:45:30Z
Lists: pgsql-hackers
Peter Geoghegan <pg@bowt.ie> writes:
> On Wed, Aug 8, 2018 at 7:40 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Oooh ... but pg_class wouldn't be big enough to get a parallel
>> index rebuild during that test, would it?

> Typically not, but I don't think that we can rule it out right away.

Didn't take long to show that the relmapper issue wasn't it:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=coypu&dt=2018-08-10%2021%3A21%3A40

So we're back to square one.  Although Tomas' recent report might
give us something new to chase.

			regards, tom lane


Commits

  1. Limit depth of forced recursion for CLOBBER_CACHE_RECURSIVELY.

  2. Fix longstanding recursion hazard in sinval message processing.

  3. Fix bugs in vacuum of shared rels, by keeping their relcache entries current.