From 17e85c3deaf8b88145cf4a09763ae17f4f9bd274 Mon Sep 17 00:00:00 2001 From: Melanie Plageman Date: Mon, 16 Mar 2026 16:50:56 -0400 Subject: [PATCH v5 3/5] Fix off-by-one error in read IO tracing --- src/backend/storage/buffer/bufmgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 00bc609529a..0723d4f3dd8 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1990,7 +1990,7 @@ AsyncReadBuffers(ReadBuffersOperation *operation, int *nblocks_progress) * must have started out as a miss in PinBufferForBlock(). The other * backend will track this as a 'read'. */ - TRACE_POSTGRESQL_BUFFER_READ_DONE(forknum, blocknum + operation->nblocks_done, + TRACE_POSTGRESQL_BUFFER_READ_DONE(forknum, blocknum + operation->nblocks_done - 1, operation->smgr->smgr_rlocator.locator.spcOid, operation->smgr->smgr_rlocator.locator.dbOid, operation->smgr->smgr_rlocator.locator.relNumber, -- 2.43.0