From mboxrd@z Thu Jan  1 00:00:00 1970
From: John Morrissey <jwm@horde.net>
Subject: Re: BUG() with SCSI-interfaced disk images
Date: Thu, 8 Jan 2009 13:15:17 -0500
Message-ID: <20090108181517.GA29360@boost.horde.net>
References: <20081226210028.GA25127@boost.horde.net> <20090107201918.GA12071@boost.horde.net> <20090107223450.GE13481@us.ibm.com> <20090108021351.GA12570@boost.horde.net> <20090108140102.GF13481@us.ibm.com>
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Cc: kvm@vger.kernel.org
To: Ryan Harper <ryanh@us.ibm.com>
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On Thu, Jan 08, 2009 at 08:01:03AM -0600, Ryan Harper wrote:
> I don't need the vmdk, but if there is some other repeatable process
> that can trigger this for you, getting that will allow me to recreate
> the issue myself.  For example, installing Debian into a vmdk, reboot,
> and then fsck'ing from inside the vm would trigger it.  Finding some
> sort of repeatable process that can trip the bug but without using any
> of your specific data would be the best way to move forward with the
> bug.

I can reproduce this when installing Debian lenny i386 (using the lenny rc1
install images from http://www.debian.org/devel/debian-installer/). The
installer will complain of I/O problems when trying to mkfs(8) the
filesystem and will prompt you to retry/ignore. Shortly thereafter, the
domain kernel panics.

Attached is the libvirt configuration; it's pretty straightforward and
translates into this kvm(1) invocation:

/usr/bin/kvm -S -M pc -m 512 -smp 1 -name scsi -monitor pty -boot n \
	-drive file=/var/lib/libvirt/images/scsi.qcow,if=scsi,index=0 \
	-net nic,macaddr=02:00:00:4d:58:13,vlan=0,model=e1000 \
	-net tap,fd=11,script=,vlan=0,ifname=vnet0 \
	-net nic,macaddr=02:00:00:23:7f:3d,vlan=1,model=e1000 \
	-net tap,fd=13,script=,vlan=1,ifname=vnet1 \
	-serial pty -parallel none -usb -vnc 0.0.0.0:0

john
-- 
John Morrissey          _o            /\         ----  __o
jwm@horde.net        _-< \_          /  \       ----  <  \,
www.horde.net/    __(_)/_(_)________/    \_______(_) /_(_)__

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<domain type=3D'kvm' id=3D'1'>=0A	<name>scsi</name>=0A	<uuid></uuid>=0A	<me=
mory>524288</memory>=0A	<currentMemory>524288</currentMemory>=0A	<vcpu>1</v=
cpu>=0A	<os>=0A		<type>hvm</type>=0A		<boot dev=3D'network'/>=0A	</os>=0A	<=
features>=0A		<acpi/>=0A	</features>=0A	<clock offset=3D'utc'/>=0A	<on_powe=
roff>destroy</on_poweroff>=0A	<on_reboot>restart</on_reboot>=0A	<on_crash>r=
estart</on_crash>=0A	<devices>=0A		<emulator>/usr/bin/kvm</emulator>=0A		<d=
isk type=3D'file' device=3D'disk'>=0A			<source file=3D'/var/lib/libvirt/im=
ages/scsi.qcow'/>=0A			<target dev=3D'sda' bus=3D'scsi'/>=0A		</disk>=0A		<=
interface type=3D'bridge'>=0A			<model type=3D'e1000'/>=0A			<source bridge=
=3D'br1'/>=0A			<mac address=3D'02:00:00:4d:58:13'/>=0A		</interface>=0A		<=
interface type=3D'bridge'>=0A			<model type=3D'e1000'/>=0A			<source bridge=
=3D'br0'/>=0A			<mac address=3D'02:00:00:23:7f:3d'/>=0A		</interface>=0A		<=
serial type=3D'pty'>=0A			<source path=3D'/dev/pts/10'/>=0A			<target port=
=3D'0'/>=0A		</serial>=0A		<console type=3D'pty' tty=3D'/dev/pts/4'>=0A			<=
source path=3D'/dev/pts/10'/>=0A			<target port=3D'0'/>=0A		</console>=0A		=
<input type=3D'mouse' bus=3D'ps2'/>=0A		<graphics type=3D'vnc' listen=3D'0.=
0.0.0' autoport=3D'yes'/>=0A	</devices>=0A</domain>=0A
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