From owner-freebsd-stable Mon May 10 12:12:37 1999 Delivered-To: freebsd-stable@freebsd.org Received: from point.osg.gov.bc.ca (point.osg.gov.bc.ca [142.32.102.44]) by hub.freebsd.org (Postfix) with ESMTP id 3DCB11594C for ; Mon, 10 May 1999 12:12:21 -0700 (PDT) (envelope-from Cy.Schubert@uumail.gov.bc.ca) Received: (from daemon@localhost) by point.osg.gov.bc.ca (8.8.7/8.8.8) id MAA25437; Mon, 10 May 1999 12:13:24 -0700 Received: from passer.osg.gov.bc.ca(142.32.110.29) via SMTP by point.osg.gov.bc.ca, id smtpda25435; Mon May 10 12:13:18 1999 Received: (from uucp@localhost) by passer.osg.gov.bc.ca (8.9.3/8.9.1) id MAA34150; Mon, 10 May 1999 12:12:13 -0700 (PDT) Message-Id: <199905101912.MAA34150@passer.osg.gov.bc.ca> Received: from localhost.osg.gov.bc.ca(127.0.0.1), claiming to be "passer.osg.gov.bc.ca" via SMTP by localhost.osg.gov.bc.ca, id smtpdm28371; Mon May 10 12:11:29 1999 X-Mailer: exmh version 2.0.2 2/24/98 Reply-To: Cy Schubert - ITSD Open Systems Group X-OS: FreeBSD 3.1-RELEASE X-Sender: cschuber To: Mike Tancsa Cc: freebsd-stable@freebsd.org Subject: Re: Strange reboot saga In-reply-to: Your message of "Sun, 09 May 1999 17:47:57 EDT." <4.1.19990509174640.0534ef10@granite.sentex.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 10 May 1999 12:11:28 -0700 From: Cy Schubert Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I remember trying this exploit about a month ago when it was first announced. It locked the system up solid within seconds. After applying the patches from PR 8416 I currently have four copies of find and one tripwire running for over an hour and a half, with no hang. The patches from PR 8416 appear to have fixed the hang. Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Open Systems Group Internet: Cy.Schubert@uumail.gov.bc.ca ITSD Cy.Schubert@gems8.gov.bc.ca Province of BC "e**(i*pi)+1=0" In message <4.1.19990509174640.0534ef10@granite.sentex.ca>, Mike Tancsa writes: > At 05:05 PM 5/9/99 , Cy Schubert - ITSD Open Systems Group wrote: > > > >In message <19990507220718.B31932@relay.ucb.crimea.ua>, Ruslan Ermilov > >writes: > >> Just FYI: > >> > >> $ uname -r; uptime > >> 2.2.1-RELEASE > >> 10:02PM up 115 days, 5:57, 1 user, load averages: 0.00, 0.09, 0.14 > >> (last reboot was due to ) > >> > >> $ uname -r; uptime > >> 3.1-STABLE > >> 10:02PM up 8 days, 11:07, 6 users, load averages: 0.27, 0.17, 0.11 > >> (last reboot was due to system freeze) > > > >You know the strange thing about these freezes is that they don't occur > >on every system. For example, I manage four 3.1R systems and a 2.2.8R > >system. Three of the 3.1 systems are rock solid. The fourth one, > >which also happens to have the fastest clock speed (333MHz PII in a > >Dell), has frozen four times since February while I was running > >tripwire 1.3 with -interactive, during phase 4 file checks, and > >starting netscape, and restoring exmh2 from an icon. The system is > >doing A LOT of paging at the time of the hangs. PR 8416 might hold > >some promise of fixing this. > > Perhaps its related to the mmap bug.. I think I have been hit by it once on > one of my systems... > > e.g. > find / -type f -exec grep zztop "{}" \; & > find / -type f -exec grep zztop "{}" \; & > > will lock a 3.x box solid. > > ---Mike > ********************************************************************** > Mike Tancsa, Network Admin * mike@sentex.net > Sentex Communications Corp, * http://www.sentex.net/mike > Cambridge, Ontario * 01.519.651.3400 > Canada * To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message