Package: qemu-system-x86
Version: 1:6.1+dfsg-4
Severity: normal
Hi,
this is a regression from qemu in bullseye to qemu in sid.
I am using a VM with a block device that is a crypted LV. It gets
unlocked by sudo cryptsetup --type=luks open /dev/mapper/drop-c_lv
cryptodevice, resulting in /dev/mapper/cryptodevice being a symlink to
/dev/dm-something with something being a different number every time.
The corresponding XML is
<disk type='file' device='disk'>
<driver name='qemu' type='raw'/>
<source file='/dev/mapper/cryptodevice'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x>
</disk>
With qemu 6.1, this VM doesn't start any more:
[9/5183]mh@drop:~ $ virsh start myvm
error: Failed to start domain 'myvm'
error: internal error: process exited while connecting to monitor:
2021-09-04T19:05:45.464658Z kvm: -blockdev
{"driver":"file","filename":"/dev/mapper/cryptodevice","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}:
'file' driver requires '/dev/mapper/cryptodevice' to be a regular file
This XML gets generated by virt-manager in current sid.
Going back to qemu 5.2 from Debian bullseye fixes the issue.
This is possibly a compatibility issue between qemu, libvirt and
virt-manager. I am not in a position to debug this in any detail, but I
think that there should be some versioned dependencies.
Using a crypted LV as raw block device is a rather common setup for me.
How can I continue doing this?
Greetings
Marc
-- System Information:
Debian Release: bookworm/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.14.1-zgws1 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_DIE, TAINT_OOT_MODULE
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages qemu-system-x86 depends on:
ii ipxe-qemu 1.0.0+git-20190125.36a4c85-5.1
ii libaio1 0.3.112-9
ii libasound2 1.2.5.1-1
ii libbrlapi0.8 6.3+dfsg-3
ii libc6 2.31-17
ii libcacard0 1:2.8.0-3
ii libcapstone4 4.0.2-3
ii libepoxy0 1.5.8-1
ii libfdt1 1.6.0-1
ii libgbm1 21.2.1-2
ii libgcc-s1 11.2.0-4
ii libglib2.0-0 2.68.4-1
ii libgnutls30 3.7.2-2
ii libibverbs1 33.2-1
ii libjpeg62-turbo 1:2.0.6-4
ii libncursesw6 6.2+20201114-4
ii libnettle8 3.7.3-1
ii libnuma1 2.0.12-1+b1
ii libpixman-1-0 0.40.0-1
ii libpmem1 1.11.0-2
ii libpng16-16 1.6.37-3
ii librdmacm1 33.2-1
ii libsasl2-2 2.1.27+dfsg-2.1
ii libseccomp2 2.5.1-1
ii libslirp0 4.6.1-1
ii libspice-server1 0.14.3-2.1
ii libtinfo6 6.2+20201114-4
ii libudev1 247.9-1
ii liburing1 0.7-3
ii libusb-1.0-0 2:1.0.24-3
ii libusbredirparser1 0.11.0-2
ii libvdeplug2 4.0.1-2
ii libvirglrenderer1 0.8.2-5
ii libxendevicemodel1 4.14.2+25-gb6a8c4f72d-2
ii libxenevtchn1 4.14.2+25-gb6a8c4f72d-2
ii libxenforeignmemory1 4.14.2+25-gb6a8c4f72d-2
ii libxengnttab1 4.14.2+25-gb6a8c4f72d-2
ii libxenmisc4.14 4.14.2+25-gb6a8c4f72d-2
ii libxenstore3.0 4.14.2+25-gb6a8c4f72d-2
ii libxentoolcore1 4.14.2+25-gb6a8c4f72d-2
ii qemu-system-common 1:5.2+dfsg-11
ii qemu-system-data 1:5.2+dfsg-11
ii seabios 1.14.0-2
ii zlib1g 1:1.2.11.dfsg-2
Versions of packages qemu-system-x86 recommends:
ii ovmf 2020.11-5
ii qemu-system-gui 1:5.2+dfsg-11
ii qemu-utils 1:5.2+dfsg-11
Versions of packages qemu-system-x86 suggests:
ii qemu-block-extra 1:5.2+dfsg-11
ii qemu-system-data [sgabios] 1:5.2+dfsg-11
pn samba <none>
pn vde2 <none>
-- no debconf information
