From owner-freebsd-current Tue Jun 25 13:32:46 2002 Delivered-To: freebsd-current@freebsd.org Received: from snipe.mail.pas.earthlink.net (snipe.mail.pas.earthlink.net [207.217.120.62]) by hub.freebsd.org (Postfix) with ESMTP id 6E57437B400; Tue, 25 Jun 2002 13:32:41 -0700 (PDT) Received: from pool0300.cvx21-bradley.dialup.earthlink.net ([209.179.193.45] helo=mindspring.com) by snipe.mail.pas.earthlink.net with esmtp (Exim 3.33 #2) id 17MwzQ-0006UH-00; Tue, 25 Jun 2002 13:32:40 -0700 Message-ID: <3D18D342.BEF187E7@mindspring.com> Date: Tue, 25 Jun 2002 13:32:02 -0700 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: "Brian F. Feldman" Cc: Sid Carter , current@freebsd.org Subject: Re: Automagic Reboots References: <200206251736.g5PHaCH77643@green.bikeshed.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG "Brian F. Feldman" wrote: > > ----------------------------------------------- > > Jun 25 18:06:30 calvin kernel: /usr/src/sys/vm/uma_core.c:1331: could > > sleep with "process lock" locked from /usr/src/sys/kern/kern_exec.c:321 > > Jun 25 18:21:19 calvin syslogd: kernel boot file is /boot/kernel/kernel > > Jun 25 18:21:19 calvin kernel: Memory modified after free 0xc2cb9800(252) > > Jun 25 18:21:19 calvin kernel: panic: Most recently used by kqueue > > I've actually seen this, too; not been able to track it down at all, though. > At the moment, I've checked everywhere obviously M_KQUEUE memory is alloced > and dealloced and have no good leads. If you care a lot, then you need to search the kernel for structures that are exactly 252 bytes. The normal cause of this message is a reference cound underflow, which could be because of a reference count overflow (I had a similar case with cred's a whilke back). -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message