On Wed, Feb 15, 2023 at 04:49:38AM +0000, Ryo Matsumura (Fujitsu) wrote: > The above is occured by the following call. > The argument 'permanent' of ReadBufferWithoutRelcache() is passed to > BufferAlloc() as 'relpersistence'. > > [src/backend/commands/] > 298 buf = ReadBufferWithoutRelcache(rnode, MAIN_FORKNUM, blkno, > 299 RBM_NORMAL, bstrategy, false);
Indeed, setting that to true (as per the attached patch) seems to fix this. I don't see any reason this _shouldn't_ be true from what I've read so far. We're reading pg_class, which will probably never be UNLOGGED. -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
diff --git a/src/backend/commands/dbcommands.c b/src/backend/commands/dbcommands.c index ef05633bb0..a0259cc593 100644 --- a/src/backend/commands/dbcommands.c +++ b/src/backend/commands/dbcommands.c @@ -296,7 +296,7 @@ ScanSourceDatabasePgClass(Oid tbid, Oid dbid, char *srcpath) CHECK_FOR_INTERRUPTS(); buf = ReadBufferWithoutRelcache(rlocator, MAIN_FORKNUM, blkno, - RBM_NORMAL, bstrategy, false); + RBM_NORMAL, bstrategy, true); LockBuffer(buf, BUFFER_LOCK_SHARE); page = BufferGetPage(buf);
