From chris@holly.dyndns.org Thu Mar 25 10:22:45 1999 Return-Path: Received: from holly.dyndns.org (ip213.houston13.tx.pub-ip.psi.net [38.27.213.213]) by hub.freebsd.org (Postfix) with ESMTP id D13E614C3F for ; Thu, 25 Mar 1999 10:22:37 -0800 (PST) (envelope-from chris@holly.dyndns.org) Received: (from chris@localhost) by holly.dyndns.org (8.9.3/8.9.3) id MAA00439; Thu, 25 Mar 1999 12:18:37 -0600 (CST) (envelope-from chris) Message-Id: <199903251818.MAA00439@holly.dyndns.org> Date: Thu, 25 Mar 1999 12:18:37 -0600 (CST) From: chris@holly.dyndns.org Reply-To: chris@calldei.com To: FreeBSD-gnats-submit@freebsd.org Subject: [Panic] cat /dev/drum causes panic, even as nonroot user X-Send-Pr-Version: 3.2 >Number: 10792 >Category: kern >Synopsis: [Panic] cat /dev/drum causes panic, even as nonroot user >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: closed >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Mar 25 10:30:00 PST 1999 >Closed-Date: Sat May 1 12:10:05 PDT 1999 >Last-Modified: Sat May 1 12:10:37 PDT 1999 >Originator: Chris Costello >Release: FreeBSD 4.0-CURRENT i386 >Organization: >Environment: FreeBSD 4.0-CURRENT, CVSupped March 20. >Description: The operation 'cat /dev/drum' causes the following panic message (reproduced after having been written down): panic: pbreassignbuf() on non phys bp 0xc1c7b490 syncing disks... 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30... giving up >How-To-Repeat: As a nonroot user, type 'cat /dev/drum' >Fix: A fix is being worked on, and a followup will be sent stating further progress. >Release-Note: >Audit-Trail: From: Chris Costello To: freebsd-gnats-submit@freebsd.org Cc: Subject: Re: kern/10792 Date: Thu, 25 Mar 1999 12:32:36 -0600 I forgot to mention this user must be in the kmem group. From: Chris Costello To: FreeBSD-gnats-submit@FreeBSD.ORG Cc: Subject: Re: kern/10792: [Panic] cat /dev/drum causes panic, even as nonroot user Date: Thu, 25 Mar 1999 13:10:04 -0600 On Thu, Mar 25, 1999, chris@holly.dyndns.org wrote: > >Description: > > The operation 'cat /dev/drum' causes the following panic message > (reproduced after having been written down): > > panic: pbreassignbuf() on non phys bp 0xc1c7b490 > syncing disks... 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30... giving up This is not a bug. It behaves exactly as I would predict from the code. In my opinion, unless the nature of pbreassignbuf and/or /dev/drum are to be changed, this pr is fit to be closed. State-Changed-From-To: open->closed State-Changed-By: steve State-Changed-When: Sat May 1 12:10:05 PDT 1999 State-Changed-Why: Closed at originator's request. >Unformatted: