From nobody@FreeBSD.ORG Sat Jun 10 08:45:25 2000 Return-Path: Received: by hub.freebsd.org (Postfix, from userid 32767) id AFEFB37BBB4; Sat, 10 Jun 2000 08:45:25 -0700 (PDT) Message-Id: <20000610154525.AFEFB37BBB4@hub.freebsd.org> Date: Sat, 10 Jun 2000 08:45:25 -0700 (PDT) From: Adam@PerfectGenius.Com Sender: nobody@FreeBSD.ORG To: freebsd-gnats-submit@FreeBSD.org Subject: mounting NFS can be done multiple times CAUSING SYSTEM LOCKUP X-Send-Pr-Version: www-1.0 >Number: 19175 >Category: misc >Synopsis: mounting NFS can be done multiple times CAUSING SYSTEM LOCKUP >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: closed >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Jun 10 08:50:00 PDT 2000 >Closed-Date: Thu May 24 12:45:42 PDT 2001 >Last-Modified: Thu May 24 12:45:58 PDT 2001 >Originator: Adam W. Botbyl >Release: 5.0-CURRENT 20000609 & 4.0-RELEASE >Organization: Perfect Genius Online >Environment: NFS Server: FreeBSD Altara.PerfectGenius.Com 4.0-RELEASE FreeBSD 4.0-RELEASE #3: Sat Jun 10 10:29:42 EDT 2000 root@Altara.PerfectGenius.Com:/usr/src/sys/compile/Altara alpha NFS Client: FreeBSD CoDech.PerfectGenius.Com 5.0-20000609-CURRENT FreeBSD 5.0-20000609-CURRENT #2: Sat Jun 10 06:16:18 EDT 2000 adam@CoDech.PerfectGenius.Com:/usr/src/sys/compile/CoDech i386 >Description: when you do: mount :/mountpoint /mountpoint it dosent register that its mounted If you do this ~131 will make TOTAL SYSTEM LOCKUP with CONSOLE REBOOT ...yes i was bored =) This could also lead to a mount problem with 131 mount points too. god forbid... >How-To-Repeat: mount ip:/point /point >Fix: Do checking on NFS mounts >Release-Note: >Audit-Trail: State-Changed-From-To: open->feedback State-Changed-By: iedowse State-Changed-When: Mon Mar 26 11:53:05 PST 2001 State-Changed-Why: The ability to stack multiple filesystems over a single mountpoint is a feature, not a bug (maybe `mount -a' could handle this better though). Can you confirm whether or not the lockups/reboots still occur on a recent -stable? I cannot repeat this problem. With around 450 NFS mounts over one mountpoint I ran out of reserved ports so the remote mountd stopped accepting the connections, but I experienced no crashes or lockups. http://www.freebsd.org/cgi/query-pr.cgi?pr=19175 State-Changed-From-To: feedback->closed State-Changed-By: kris State-Changed-When: Thu May 24 12:45:42 PDT 2001 State-Changed-Why: Feedback timeout http://www.FreeBSD.org/cgi/query-pr.cgi?pr=19175 >Unformatted: