From owner-freebsd-hackers Mon Aug 12 10:54:37 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id KAA02066 for hackers-outgoing; Mon, 12 Aug 1996 10:54:37 -0700 (PDT) Received: from glacier.wise.edt.ericsson.se (glacier-ext.wise.edt.ericsson.se [193.180.251.38]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id KAA02048; Mon, 12 Aug 1996 10:54:25 -0700 (PDT) Received: from egg.lmc.ericsson.se (egg.lmc.ericsson.se [142.133.32.1]) by glacier.wise.edt.ericsson.se (8.7.5/8.7.3/glacier-0.9) with SMTP id TAA23065; Mon, 12 Aug 1996 19:48:00 +0200 (MET DST) Received: from chicago.lmc.ericsson.se by egg.lmc.ericsson.se (4.1/LME-2.2) id AA11700; Mon, 12 Aug 96 13:47:58 EDT Received: (from lmcsato@localhost) by chicago.lmc.ericsson.se (8.7/8.7) id NAA05254; Mon, 12 Aug 1996 13:47:33 -0400 (EDT) Date: Mon, 12 Aug 1996 13:47:31 -0400 (EDT) From: Samy Touati X-Sender: lmcsato@chicago To: Terry Lambert Cc: Gary Palmer , hackers@FreeBSD.ORG Subject: Re: machine crashing, what panic: free means? In-Reply-To: <199608121616.JAA25398@phaeton.artisoft.com> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hi, I have version 2.1. I noticed that this happens when a lot of traffic is on the ethernet card, and these packets need to be redirected to the serial port at 115200 bauds. Could this bug be related to the CPU or the board being slow, for the packets throuput. On Mon, 12 Aug 1996, Terry Lambert wrote: > > > > Samy Touati wrote in message ID > > > Does anybody knows what a free panic means? > > > > We didn't charge you for it. > > > > :-) > > 8-). > > Generally, it means that something was freed twice. THis is a bad thing. > > Typically, you can get this from reallocating vnodes by rolling off the > top of the freelist back to the tail. There is an off-by-1 error that > will let this happen. I think newer versions of the OS (you didn't > identify your version) had my patch rolled in (it was a kludge in the > vfs_subr.c; you can get the patch from the -current list archive on > www.freebsd.org -- or update your code). > > > Terry Lambert > terry@lambert.org > --- > Any opinions in this posting are my own and not those of my present > or previous employers. >