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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2017-11-24 13:43:34 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2017-11-24 13:43:34 -0500 |
| commit | cc3c4af4a948e5c5be22afe769bab41235c574e5 (patch) | |
| tree | 4ef00981989a8859c063dc3bed0c6c4b901ff69e | |
| parent | 9c55391f0f277318c754f89950e65363ede4136e (diff) | |
Fix bug in generation.c's valgrind support.
This doesn't look like the last such bug, but it's one that the
test_decoding regression test is tripping over. Per buildfarm.
Tomas Vondra
Discussion: https://postgr.es/m/c903f275-2150-fa52-64bf-dca7b53ebf8d@fuzzy.cz
| -rw-r--r-- | src/backend/utils/mmgr/generation.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/backend/utils/mmgr/generation.c b/src/backend/utils/mmgr/generation.c index 2ede8e1be93..a748ee266c2 100644 --- a/src/backend/utils/mmgr/generation.c +++ b/src/backend/utils/mmgr/generation.c @@ -409,9 +409,14 @@ GenerationAlloc(MemoryContext context, Size size) chunk = (GenerationChunk *) block->freeptr; + /* Prepare to initialize the chunk header. */ + VALGRIND_MAKE_MEM_UNDEFINED(chunk, Generation_CHUNKHDRSZ); + block->nchunks += 1; block->freeptr += (Generation_CHUNKHDRSZ + chunk_size); + Assert(block->freeptr <= block->endptr); + chunk->block = block; chunk->context = set; |