DragonFly bugs List (threaded) for 2007-06
From: Joe Talbott <firstname.lastname@example.org>
Mail-Followup-To: Matthew Dillon <email@example.com>,
Subject: Re: kernel panic
Date: Wed, 13 Jun 2007 09:53:49 -0400
Content-Type: text/plain; charset=us-ascii
References: <20070510210651.GB97594@nickel.oss.ntelos.net> <200705110017.l4B0Hf9w058377@apollo.backplane.com> <20070511011203.GA386@nickel.oss.ntelos.net> <200705111949.l4BJnKoE066826@apollo.backplane.com> <20070511200724.GA11983@nickel.oss.ntelos.net> <200705120050.l4C0o7iE069861@apollo.backplane.com> <20070512025318.GA13871@nickel.oss.ntelos.net> <200705130734.l4D7YZtw083017@apollo.backplane.com> <20070513233449.GA49298@nickel.oss.ntelos.net> <200705132347.l4DNlWU9091882@apollo.backplane.com>
X-Trace: 1181743757 crater_reader.dragonflybsd.org 797 184.108.40.206
Xref: crater_reader.dragonflybsd.org dragonfly.bugs:7108
On Sun, May 13, 2007 at 04:47:32PM -0700, Matthew Dillon wrote:
> :I made this change and shortly got another hang. I was in X messing
> :around with a vkernel and was typing away when everything froze. I
> :waited a bit after trying CTRL-ALT-ESC, CTRL-ALT-BKSP, CTRL-ALT-DEL,
> :and anything else I could think of, but the machine was frozen. So I
> :held the power button down for 5s or so and rebooted. After checking
> :my filesystems, what do you know another coredump was found and it is
> :the same as last time. I am positive that I'm not looking at the
> :wrong vmcore. I am inclined to believe that no coredump was ever
> :written to my swap partition or perhaps only a part of a coredump was
> :written before I power cycled the laptop. I'm going to try to trigger
> :this running from the system console versus in X and see if I can get
> :into the debugger.
> If you have a serial port you can run a serial console to another
> machine. If not you do have another option, and that is to compile
> a kernel with:
> options DDB_UNATTENDED
> Hopefully when it crashes it will be able to write the core out. If
> it does, you should see the hard drive light for your laptop flicker
> or go solid for however long it takes to write out the core.
> Note: Do *NOT* hard power cycle your machine while it is writing to the
> hard drive. That's a great way to destroy the hard drive.
This has happened again. The same as the first time the machine locks
up hard when doing a 'shutdown -h now' via icewm's shutdown function.
I had DDB_UNATTENDED compiled in my kernel but to no avail. I did
notice the fan ramp up in speed but there was absolutely no HDD
activity indicated by the HDD LED. I certainly can't rule out
icewm/xorg as the culprit.