Date: Wed, 26 Nov 1997 00:43:00 -0800 (PST) From: ji@research.att.com To: freebsd-gnats-submit@FreeBSD.ORG Subject: bin/5155: nullfs on top of nfs seems to be hanging machine running 2.2.2-RELEASE Message-ID: <199711260843.AAA00959@hub.freebsd.org> Resent-Message-ID: <199711260850.AAA01346@hub.freebsd.org>
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>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: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Nov 26 00:50:00 PST 1997 >Last-Modified: >Originator: John Ioannidis >Organization: AT&T Labs - Research >Release: 2.2.2-RELEASE >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. >Audit-Trail: >Unformatted:
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