[virt-tools-list] [PATCH v1] virtinst: set preserve when on_crash in s390x
crobinso at redhat.com
Tue May 10 16:22:06 UTC 2016
On 05/10/2016 12:16 PM, Leno Hou wrote:
> On Tue, May 10, 2016 at 11:48 PM, Cole Robinson <crobinso at redhat.com
> <mailto:crobinso at redhat.com>> wrote:
> On 05/10/2016 09:24 AM, Leno Hou wrote:
> > When booting from empty disk image or none bootdev, its leads
> > system IPL enter into infinite loop with message on s390x.
> > This patch sets preserve when on_crash to avoid the loop.
> Is this correct behavior, or is this a qemu or guest OS bug? If it's something
> that's going to be fixed eventually I'd rather not add it to virtinst. Is
> there a bug report somewhere I can look at?
> described in below.
> 1. qemu-img create -f qcow2 /var/lib/libvirt/images/sle.qcow2 20G
> 2. cat sle1.xml
> [root at ltczhp20 ~]# cat sle.xml
> <type arch='s390x' machine='s390-ccw-virtio-2.6'>hvm</type>
> <boot dev='hd'/>
> <clock offset='utc'/>
> <disk type='file' device='disk'>
> <driver name='qemu' type='qcow2'/>
> <source file='/var/lib/libvirt/images/sle.qcow2'/>
> <target dev='vda' bus='virtio'/>
> <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
> <disk type='file' device='cdrom'>
> <driver name='qemu' type='raw'/>
> <target dev='sda' bus='scsi'/>
> <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> 3. virsh create sle1.xml
> 4. virsh start sle1 --console
> infinite loop message:
> .... Using guessed DASD geometry.
> Using ECKD scheme (block size 4096), CDL
> ! No zIPL section in IPL2 record. !
Right, but that seems like a bug in the guest, or in the firmware, etc. I
generally don't like to add config workarounds to virtinst to work around a
bug. Has that issue been reported anywhere?
Or is the infinite loop that the VM just keeps crashing and rebooting? In that
case the behavior actually seems correct.
(Though honestly I kind of question if we should be setting on_crash=reboot as
the default anyways. I don't think it affected us with qemu much since it
didn't have any sort of crash detection for a long time, but maybe we should
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