From owner-freebsd-stable Sat Jun 12 21:59:31 1999 Delivered-To: freebsd-stable@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id 9791815028; Sat, 12 Jun 1999 21:59:27 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id VAA65612; Sat, 12 Jun 1999 21:59:15 -0700 (PDT) (envelope-from dillon) Date: Sat, 12 Jun 1999 21:59:15 -0700 (PDT) From: Matthew Dillon Message-Id: <199906130459.VAA65612@apollo.backplane.com> To: "David E. Cross" Cc: The Hermit Hacker , freebsd-current@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG, crossd@cs.rpi.edu Subject: Re: MMAP() in STABLE/CURRENT ... References: <199906091754.NAA34746@cs.rpi.edu> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :Anyway, I have a simple program that mmap()s a 1Gig file into memory, :madvise()s it that it will be doing random access. If I quit and restart :this program a couple of times (yes, it close()s and munmap()s the segment), :my system will hard lock. By dropping into DDB once I found that it was :stuck in 'vm_somethingorother_choosepage'. Does this ring any bells? Should :I try to stop my system again? : :-- :David Cross | email: crossd@cs.rpi.edu David, can you email this program to me please? Also, which FreeBSD release does this occur on? I've got about 6 mmap-related bugs on my plate at the moment. 3 of them have been identified ( that is, I know why they deadlock the machine ), but none have been fixed yet. -Matt Matthew Dillon :Systems Administrator/Research Programmer | Web: http://www.cs.rpi.edu/~crossd :Rensselaer Polytechnic Institute, | Ph: 518.276.2860 :Department of Computer Science | Fax: 518.276.4033 :I speak only for myself. | WinNT:Linux::Linux:FreeBSD : : :To Unsubscribe: send mail to majordomo@FreeBSD.org :with "unsubscribe freebsd-current" in the body of the message : To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message