2008/6/26 Tom Lane <tgl@xxxxxxxxxxxxx>: > No, nothing like that has ever been reported in any released PG > version. If the substituted blocks were from non-Postgres files > then I think you could write off the idea of a PG bug entirely. > It could still be a software issue though. Thank you for a quick response. The issue is clear now. The machine didn't pass a hardware test. Best regards, Jacek Rembisz