On 02/27/2017 06:40 PM, Andres Freund wrote:
On 2017-02-27 18:04:41 +0100, Petr Jelinek wrote:
On 27/02/17 18:00, Andres Freund wrote:

FWIW I think the ppc64 machines are failing because of unrelated issue
(changes to integer timestamps). We should probably look at 32bit machines

Don't think so - termite is ppc64 afaics, and the failure doesn't look
integer timestamp related (assert failure is clearly about this, and set
of changed commits *only* include slab related commits).

termite is ppc64 but with 4 byte pointer size according to configure so
it might be related to that perhaps?

Uh, ok. I checked the --configure options, but not the actual configure
output (blame -ENOCOFEE and jetlag).  The output makes it fairly likely
that my StandardChunkHeader theory is valid, so I'll work on a patch to
clean that up.

Thanks. I set up a rpi3 machine (amrv7l) that fails with the same issue, so if you need to test the patch, let me know.

While building, I've also noticed a bunch of warnings about string formatting, attached is a patch that that fixes those.


Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
diff --git a/src/backend/utils/mmgr/slab.c b/src/backend/utils/mmgr/slab.c
index a5e140e..c673bc3 100644
--- a/src/backend/utils/mmgr/slab.c
+++ b/src/backend/utils/mmgr/slab.c
@@ -207,7 +207,7 @@ SlabContextCreate(MemoryContext parent,
 	/* Make sure the block can store at least one chunk. */
 	if (blockSize - sizeof(SlabBlock) < fullChunkSize)
-		elog(ERROR, "block size %ld for slab is too small for %ld chunks",
+		elog(ERROR, "block size %zu for slab is too small for %zu chunks",
 			 blockSize, chunkSize);
 	/* Compute maximum number of chunks per block */
@@ -333,7 +333,7 @@ SlabAlloc(MemoryContext context, Size size)
 	/* make sure we only allow correct request size */
 	if (size != slab->chunkSize)
-		elog(ERROR, "unexpected alloc chunk size %ld (expected %ld)",
+		elog(ERROR, "unexpected alloc chunk size %zu (expected %zu)",
 			 size, slab->chunkSize);
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