diff options
Diffstat (limited to 'src/backend/storage/ipc')
| -rw-r--r-- | src/backend/storage/ipc/shmem.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/backend/storage/ipc/shmem.c b/src/backend/storage/ipc/shmem.c index 04cfa1a812e..e317c0e1adf 100644 --- a/src/backend/storage/ipc/shmem.c +++ b/src/backend/storage/ipc/shmem.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.41 1999/06/03 13:33:13 vadim Exp $ + * $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.42 1999/06/06 20:19:35 vadim Exp $ * *------------------------------------------------------------------------- */ @@ -652,9 +652,15 @@ GetSnapshotData(bool serializable) snapshot->xip = (TransactionId *) malloc(have * sizeof(TransactionId)); snapshot->xmin = cid; - ReadNewTransactionId(&(snapshot->xmax)); SpinAcquire(ShmemIndexLock); + /* + * Unfortunately, we have to call ReadNewTransactionId() + * after acquiring ShmemIndexLock above. It's not good because of + * ReadNewTransactionId() does SpinAcquire(OidGenLockId) but + * _necessary_. + */ + ReadNewTransactionId(&(snapshot->xmax)); hash_seq((HTAB *) NULL); while ((result = (ShmemIndexEnt *) hash_seq(ShmemIndex)) != NULL) |