On 02/27/2017 05:48 PM, Andres Freund wrote:
On 2017-02-27 07:55:32 -0800, Andres Freund wrote:
On 2017-02-27 10:32:25 -0500, Tom Lane wrote:
Andres Freund <and...@anarazel.de> writes:
And pushed slab and its usage. Will have a look at generation.c
tomorrow.
Perhaps first you need to find out why so much of the buildfarm
is unhappy.
Will do, after a morning coffee.
Hm. Not entirely clear on what's going on yet. I've run the tests on
hydra (community ppc 64 machine), which is pretty similar to termite
which failed [1] with:
TRAP: BadArgument("!(((context) != ((void *)0) && (((((const Node*)((context)))->type) ==
T_AllocSetContext) || ((((const Node*)((context)))->type) == T_SlabContext))))", File:
"/home/pgbuildfarm/buildroot-termite/HEAD/pgsql.build/../pgsql/src/backend/utils/mmgr/mcxt.c", Line:
1010)
The best theory I have so far that I have is that slab.c's idea of
StandardChunkHeader's size doesn't match what mcxt.c think it is
(because slab.c simply embeds StandardChunkHeader, but mcxt uses
MAXALIGN(sizeof(StandardChunkHeader))). That's not good, but I don't
quite see how that'd cause the issue, since StandardChunkHeader's size
should always be properly sized.
Tomas, do you have access to termite (which appears to be run by Craig,
under company mail).
No, I don't, but I'll ping Craig. I might ping him, but it's ~4AM in
Australia, though, so it'll take time.
FWIW I think the ppc64 machines are failing because of unrelated issue
(changes to integer timestamps). We should probably look at 32bit
machines first.
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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