From nobody Wed Nov 26 00:43:00 1997 Received: (from nobody@localhost) by hub.freebsd.org (8.8.7/8.8.7) id AAA00959; Wed, 26 Nov 1997 00:43:00 -0800 (PST) (envelope-from nobody) Message-Id: <199711260843.AAA00959@hub.freebsd.org> Date: Wed, 26 Nov 1997 00:43:00 -0800 (PST) From: ji@research.att.com To: freebsd-gnats-submit@freebsd.org Subject: nullfs on top of nfs seems to be hanging machine running 2.2.2-RELEASE X-Send-Pr-Version: www-1.0 >Number: 5155 >Category: bin >Synopsis: nullfs on top of nfs seems to be hanging machine running 2.2.2-RELEASE >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: closed >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Nov 26 00:50:00 PST 1997 >Closed-Date: Sat Nov 29 07:24:24 PST 1997 >Last-Modified: Sat Nov 29 07:31:01 PST 1997 >Originator: John Ioannidis >Release: 2.2.2-RELEASE >Organization: AT&T Labs - Research >Environment: FreeBSD elf.tla.org 2.2.2-RELEASE FreeBSD 2.2.2-RELEASE #1: Wed Nov 5 23:06:50 EST 1997 ji@elf.tla.org:/usr/src/sys/compile/ELF i386 >Description: Doing a null-fs mount of an NFS-mounted directory hangs machine when there is a lot of filesystem I/O involving the nullfs mount >How-To-Repeat: mount -t nfs server:/local/0 /n/server/local/0 mount -t null /n/server/local/0/home/ji /home/ji (where /home lives in the root filesystem, of course). when I start netscape (whith /home/ji as my home directory), the machine freezes up after a few seconds. It won't even responds to pings. The only way out is to do a hard reset. >Fix: Unknown. I wonder if this is a known problem, if anyone else is working on it, and if it would make sense for me to try the same under FreeBSD-stable to see if I get the same behavior. >Release-Note: >Audit-Trail: State-Changed-From-To: open->closed State-Changed-By: jraynard State-Changed-When: Sat Nov 29 07:24:24 PST 1997 State-Changed-Why: nullfs is not claimed to work. Check out roberto@freebsd.org's recent patches to -current if interested in getting this to work. >Unformatted: