Package: kvm
Version: 1:0.12.3+dfsg-4
Severity: normal

After an upgrade none of my virtual machines will start any more. They all give 
the error
"isa irq 4 already assigned". This appears to be because you can no longer give 
more than
two -serial options to kvm.

: root; kvm -name example -m 64 -drive 
index=0,file=/dev/mapper/example_ROOT_snapshot,if=virtio,boot=on,media=disk 
-drive 
index=1,file=/usr/local/lib/empty-1Gb.qcow2,if=virtio,media=disk,snapshot=on 
-drive index=2,file=/dev/mapper/example_data,if=virtio,media=cdrom -drive 
index=3,file=/dev/mapper/example_var,if=virtio,media=disk -nographic -monitor 
unix:/var/local/virtual-machines/example.monitor,server,nowait -serial stdio 
-serial unix:/var/local/virtual-machines/example.serial1,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial2,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial3,server,nowait -net 
nic,macaddr=52:54:00:88:00:B,model=virtio -net tap,ifname=tap10
isa irq 4 already assigned

same thing with one less -serial option

: root; kvm -name example -m 64 -drive 
index=0,file=/dev/mapper/example_ROOT_snapshot,if=virtio,boot=on,media=disk 
-drive 
index=1,file=/usr/local/lib/empty-1Gb.qcow2,if=virtio,media=disk,snapshot=on 
-drive index=2,file=/dev/mapper/example_data,if=virtio,media=cdrom -drive 
index=3,file=/dev/mapper/example_var,if=virtio,media=disk -nographic -monitor 
unix:/var/local/virtual-machines/example.monitor,server,nowait -serial stdio 
-serial unix:/var/local/virtual-machines/example.serial1,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial2,server,nowait -net 
nic,macaddr=52:54:00:88:00:B,model=virtio -net tap,ifname=tap10
isa irq 4 already assigned

but with just 2 serial options kvm works

: root; kvm -name example -m 64 -drive 
index=0,file=/dev/mapper/example_ROOT_snapshot,if=virtio,boot=on,media=disk 
-drive 
index=1,file=/usr/local/lib/empty-1Gb.qcow2,if=virtio,media=disk,snapshot=on 
-drive index=2,file=/dev/mapper/example_data,if=virtio,media=cdrom -drive 
index=3,file=/dev/mapper/example_var,if=virtio,media=disk -nographic -monitor 
unix:/var/local/virtual-machines/example.monitor,server,nowait -serial stdio 
-serial unix:/var/local/virtual-machines/example.serial1,server,nowait -net 
nic,macaddr=52:54:00:88:00:B,model=virtio -net tap,ifname=tap10
Press any key to continue.

It appears that we can only have two -serial options now. Let's check without 
"-serial stdio".

: root; kvm -name example -m 64 -drive 
index=0,file=/dev/mapper/example_ROOT_snapshot,if=virtio,boot=on,media=disk 
-drive 
index=1,file=/usr/local/lib/empty-1Gb.qcow2,if=virtio,media=disk,snapshot=on 
-drive index=2,file=/dev/mapper/example_data,if=virtio,media=cdrom -drive 
index=3,file=/dev/mapper/example_var,if=virtio,media=disk -nographic -monitor 
unix:/var/local/virtual-machines/example.monitor,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial0,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial1,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial2,server,nowait -net 
nic,macaddr=52:54:00:88:00:B,model=virtio -net tap,ifname=tap10
isa irq 4 already assigned

yes, 3 serial options no longer work

: root; kvm -name example -m 64 -drive 
index=0,file=/dev/mapper/example_ROOT_snapshot,if=virtio,boot=on,media=disk 
-drive 
index=1,file=/usr/local/lib/empty-1Gb.qcow2,if=virtio,media=disk,snapshot=on 
-drive index=2,file=/dev/mapper/example_data,if=virtio,media=cdrom -drive 
index=3,file=/dev/mapper/example_var,if=virtio,media=disk -nographic -monitor 
unix:/var/local/virtual-machines/example.monitor,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial0,server,nowait -serial 
unix:/var/local/virtual-machines/example.serial1,server,nowait -net 
nic,macaddr=52:54:00:88:00:B,model=virtio -net tap,ifname=tap10

with two serial options it works

The kvm(1) still says "This option can be used several times to simulate up to 
4 serial ports."

Stuart (http://www.pook.it)

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages kvm depends on:
ii  qemu-kvm                   0.12.3+dfsg-4 Full virtualization on x86 hardwar

kvm recommends no packages.

kvm suggests no packages.

-- debconf-show failed



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