From owner-freebsd-current@FreeBSD.ORG Fri Apr 2 19:11:13 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EF00616A4CE for ; Fri, 2 Apr 2004 19:11:13 -0800 (PST) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id E324A43D2F for ; Fri, 2 Apr 2004 19:11:13 -0800 (PST) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id DA2E772DCA; Fri, 2 Apr 2004 19:11:13 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id D517572DBF; Fri, 2 Apr 2004 19:11:13 -0800 (PST) Date: Fri, 2 Apr 2004 19:11:13 -0800 (PST) From: Doug White To: Artem Koutchine In-Reply-To: <00da01c418aa$8247b160$0c00a8c0@artem> Message-ID: <20040402190812.V46609@carver.gumbysoft.com> References: <00da01c418aa$8247b160$0c00a8c0@artem> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-current@freebsd.org Subject: Re: 5.2-current does not allow login and panics with modifiedmemory after free X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Apr 2004 03:11:14 -0000 On Fri, 2 Apr 2004, Artem Koutchine wrote: > Hello! > > I am trying to run 5.2-CURRENT (cvsupped and rebuild apr 1) on the following > server: > > Supermicro DPE-G2 motherboard > DUAL XEON 2.66Ghz (HT enabled) > 2GB RAM ECC or non-ECC RAM? > 4 SATA SEAGTE 120GB DRIVES > 3WARE 8506-4LP SATA RAID5 CONTROLLER > > SATA drivers are joint into a single RAID5 array which is seens > as twe0. > > 3dm is installed. Hm, I haven't had 3dm working on my machines with -CURRENT, but maybe I'm doing something wierd. > The box ran half a day and a night just fine. After that it was shutdown > correctly and after a couple of hours turned on. > > I have heared (leds do not work due to connector incompatibility with > supermicro case) high hdd activity for some time, but all filesysrems > were marked as clean. I tried to login but i could not because after i > types 'root' at the login nothing happened at all. Just a blinking cursor. > However, the box was not hanging - screensaver appeared after some > time and i can type on tty and also swicth vttys and use scroll lock to > scroll > boot messages. 3DM did not respond via web. So, i waited 4 hours and > rebooted. > > After reboot i can logon but after several requests to RAID status via > web (3dm) i got the following on the console: > > twe0: TWEIO_GET_PARAM failed for 0x402/0x3/16 Sounds like one of the disks flaked out ... if you reboot and check the 3ware BIOS, does it complain one of the disks has failed? > > Then after a minute or two the following happened: > > Memory modified after free 0x788f400(508) val=20202020 @ 0xe788f400 Thats an ominous value. The usual overwrite value is 0xd0d0d0d0, but that looks like it was shifted. > panic: Most recently used by devbuf > at line 128 in file /usr/src/sys/udm_dbg.c > cpu=0; > Debugger ("panic") > Stopped at Debugger +0.46: xchgl %ebx, in_Debugger.0 I suspect this is a secondary issue with a drive problem. We'd need a backtrace to get more info, however. ('tr' at hte ddb prompt.) -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org