diff options
| -rw-r--r-- | src/backend/access/transam/slru.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/src/backend/access/transam/slru.c b/src/backend/access/transam/slru.c index 0fbcb4e6fec..e38f9199ddb 100644 --- a/src/backend/access/transam/slru.c +++ b/src/backend/access/transam/slru.c @@ -920,18 +920,29 @@ SlruReportIOError(SlruCtl ctl, int pageno, TransactionId xid) path, offset))); break; case SLRU_READ_FAILED: - ereport(ERROR, - (errcode_for_file_access(), - errmsg("could not access status of transaction %u", xid), - errdetail("Could not read from file \"%s\" at offset %u: %m.", - path, offset))); + if (errno) + ereport(ERROR, + (errcode_for_file_access(), + errmsg("could not access status of transaction %u", xid), + errdetail("Could not read from file \"%s\" at offset %u: %m.", + path, offset))); + else + ereport(ERROR, + (errmsg("could not access status of transaction %u", xid), + errdetail("Could not read from file \"%s\" at offset %u: read too few bytes.", path, offset))); break; case SLRU_WRITE_FAILED: - ereport(ERROR, - (errcode_for_file_access(), - errmsg("could not access status of transaction %u", xid), - errdetail("Could not write to file \"%s\" at offset %u: %m.", - path, offset))); + if (errno) + ereport(ERROR, + (errcode_for_file_access(), + errmsg("could not access status of transaction %u", xid), + errdetail("Could not write to file \"%s\" at offset %u: %m.", + path, offset))); + else + ereport(ERROR, + (errmsg("could not access status of transaction %u", xid), + errdetail("Could not write to file \"%s\" at offset %u: wrote too few bytes.", + path, offset))); break; case SLRU_FSYNC_FAILED: ereport(data_sync_elevel(ERROR), |