I have a program where I mmap a huge sparse file. If I fault and generate a core dump it proceeds to do something until the disk is full, but the disk is then left not full and a perfectly good core dump of a reasonable size is left. Can anyone explain? This is with 4.0. Peter -- Peter Dufault ([EMAIL PROTECTED]) Realtime development, Machine control, HD Associates, Inc. Fail-Safe systems, Agency approval To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message