From owner-freebsd-current Wed Apr 14 12:11:16 1999 Delivered-To: freebsd-current@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id 28CE5152A9 for ; Wed, 14 Apr 1999 12:11:15 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id MAA32003; Wed, 14 Apr 1999 12:08:20 -0700 (PDT) (envelope-from dillon) Date: Wed, 14 Apr 1999 12:08:20 -0700 (PDT) From: Matthew Dillon Message-Id: <199904141908.MAA32003@apollo.backplane.com> To: Bob Bishop Cc: current@FreeBSD.ORG Subject: Re: NFS, blocks of NULLs in files References: Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :Hi, : :I'm getting the 'blocks of NULLs in NFS-mounted files' problem repeatably :with last night's -current (cvsup'd at Wed Apr 14 04:02:34 BST 1999) :running both on server and client (except that the client's kernel is 24hrs :older than that). : :It happens during a kernel build on the client, so both the sources and :objects are being accessed via NFS. During the 'generating linker set :emulation glue for ELF' phase, a lot of the .o's turn up with blocks of :NULLs. The rest of the world builds fine, but /usr/obj is local so there is :little or no NFS writing going on in that case. : :The client is SMP but it's been doing daily builds with -j8 since that got :sorted out, and anyway it now fails in exactly the same way whether -j is :used or not. : : :-- :Bob Bishop (0118) 977 4017 international code +44 118 :rb@gid.co.uk fax (0118) 989 4254 between 0800 and 1800 UK I've been working on this for the last few days. I should have an experiemental fix today. I'll post to current & hackers when it's ready. The problem is related to the mmap fixes which went in a few days ago. These fixes brought out yet another bug in NFS. The mmap fixes themselves are correct. -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message