On 22.06.2018 16:25, Kevin Wolf wrote:
Am 22.06.2018 um 15:36 hat Christian Borntraeger geschrieben:
On 06/22/2018 02:55 PM, Kevin Wolf wrote:
Am 22.06.2018 um 13:38 hat Christian Borntraeger geschrieben:
On 06/15/2018 04:21 PM, Kevin Wolf wrote:
The -drive option serial was deprecated in QEMU 2.10. It's time to remove it.
Tests need to be updated to set the serial number with -global instead of using the -drive option.
libvirt 4.5 still creates those (at least on s390x)
<disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none' io='native' iothread='1'/> <source file='/var/lib/libvirt/qemu/image.zhyp137'/> <target dev='hda' bus='virtio'/> <serial>skel</serial> <boot order='1'/> <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/> </disk>
-> [...] -drive file=/var/lib/libvirt/qemu/image.zhyp137,format=qcow2,if=none,id=drive-virtio-disk0,serial=skel,cache=none,aio=native -device virtio-blk-ccw,iothread=iothread1,scsi=off,devno=fe.0.0000,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1,write-cache=on [...]
2018-06-22T11:25:20.946024Z qemu-system-s390x: -drive file=/var/lib/libvirt/qemu/image.zhyp137,format=qcow2,if=none,id=drive-virtio-disk0,serial=skel,cache=none,aio=native: Block format 'qcow2' does not support the option 'serial' 2018-06-22 11:25:21.098+0000: shutting down, reason=failed
So it seems that this breaks s390x.
To me it seems that this is also broken on x86.
Thanks for bringing this up. libvirt should fix this before QEMU 3.0 is released.
I think this is definitely too short notice. We should not break existing setups just by insisting that users have to update libvirt when they update QEMU. Yes, this might be our policy, but doing so "just because we can" is certainly a very bad attitude. I see no fundamental technical reason why we should not revert this change.
This was in fact one release longer than our deprecation policy says.
Actually, if we assume that the chapter in qemu-doc.texi is the "official" way to deprecate things, these options are only officially deprecated since QEMU v2.12, since we missed to add them to the deprecation chapter earlier: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=c08d46a9 (We've mentioned them in https://wiki.qemu.org/ChangeLog/2.10#Deprecated_options already, though) Thomas