index c0c4f5d9ca7c9ee04ca5c19a095a6706ef0b441c..c308286f94d14c04ace359f918aaf684f705193d 100644 (file)
@@ -609,8 +609,15 @@ apw_dump_now(bool is_bgworker, bool dump_unlogged)
return 0;
}
- block_info_array =
- (BlockInfoRecord *) palloc(sizeof(BlockInfoRecord) * NBuffers);
+ /*
+ * With sufficiently large shared_buffers, allocation will exceed 1GB, so
+ * allow for a huge allocation to prevent outright failure.
+ *
+ * (In the future, it might be a good idea to redesign this to use a more
+ * memory-efficient data structure.)
+ */
+ block_info_array = (BlockInfoRecord *)
+ palloc_extended((sizeof(BlockInfoRecord) * NBuffers), MCXT_ALLOC_HUGE);
for (num_blocks = 0, i = 0; i < NBuffers; i++)
{