Hi All,
I have a below use case:
1. created a VM with 1 vhd and 1 VHDX disk on HyperV2012 R2 hypervisor.
2. created 1 bootable iso which contains vmlinuz & initrd file from Oracle enterprise linux 6.4 media.
3. mount created media on VM and booted this VM using CD boot option.
4. when machine boots ata_piix controller gets loaded at initrd stage. but while unloading the ata_piix, it crashes and generate the call trace.
5. when there is only single disk attached to VM loading and unloading of ata_piix controller happens successfully, without any problem.(note: disks are running on IDE controller).
6. one more strange thing is: when I add one more virtual processor i.e. if two virtuall processors are present in VM then ata_piix gets uunloaded successfully, without any crash. but if single processor is there then if one disk is attached. ata_piix gets unloaded successfully but if more than 1 disk is attached to VM, unloading of ata_piix generate crash.
need your help to resolve this issue. Please look into it and do let me know if you need any further info to resolve the same.
Thanks,
indus.