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Date:      Sun, 3 Aug 2003 12:35:46 +0930
From:      Greg 'groggy' Lehey <grog@FreeBSD.org>
To:        Richard Johannesson <rtjohan@syspres.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: How to debug fatal trap? running on vinum
Message-ID:  <20030803030546.GZ95375@wantadilla.lemis.com>
In-Reply-To: <001a01c35864$df97d770$3d01a8c0@rjc800>
References:  <001a01c35864$df97d770$3d01a8c0@rjc800>

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On Friday,  1 August 2003 at 12:41:15 -0700, Richard Johannesson wrote:
> Had FreeBSD5.1 on a box that had a physical hard-drive failure last
> week.  So, this time setup the box using mirrored 200GB drives using
> vinum sub-disks. Setup multiple vinum partitions to help limit any
> file system corruption. One of those partitions was /dev/vinum/ports
> which points to /usr/ports.
>
> Once the machine was setup with a minimal install, then did a
> restore from the image made before the original hdd failure. I've
> never done that before, so there is a possibility that I might have
> restored a file that I should not have.
>
> Got ports updated using cvsup. Then did a make reinstall of
> /usr/ports/x11/kde3. The last thing I saw before fatal trap & reboot was the
> following:
>
> -------------------
> ===> Extracting for libxml2-2.5.8_1
>>> Checksum OK for gnome/libxml2-2.5.8.tar.bz2.
>
> Fatal trap 12: page fault while in kernel mode
>
> -------------------
>
> Any tips on how to debug this or if there is an article that
> discusses how to do this I would be very grateful for any help. The
> only way I know how to fix is to rebuild everything - including
> setting up the vinum volume up again. Takes too long, hoping for a
> better solution. Clearly a newbie.

Sure, it's all in the man page, or at
http://www.vinumvm.org/vinum/how-to-debug.html.  Replacing a failed
disk is at http://www.vinumvm.org/vinum/replacing-drive.html.

Greg
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