On 06/13/2013 06:20 PM, Laszlo Ersek wrote:

On 06/13/13 12:19, chandrashekar shastri wrote:

...

Hi,

I have filed a bug "fdisk still shows the "/dev/sdb" partitions even after the removal of scsi disk" for the upstream kernel.

Bug link: https://bugs.launchpad.net/qemu/+bug/1190525

RHEL guest shows the partittions even after the removal of scsi disk: fdisk still shows the "/dev/sdb" partitions even after the removal of scsi disk.

Guest details: ------------------- Kernel : 2.6.32-358

Host Details :

Upstream Kernel, Qemu, Libvirt and virt-manager ---------------------------------------------------------------------

kernel version : 3.9.0+ qemu version : QEMU emulator version 1.5.0 libvirt version : 1.0.5 virt-install : 0.600.3

Steps to reproduce the issue:

I. Add the SCSI disk through the virt-manager. 2. Create the partition using fdisk (eg: /dev/sbb) 3. Create a filesystem and format using mkfs.ext3 or mkfs.ext4 4. Remove the scsi disk through the virt-manager. 5. Again run the fdisk /dev/sdb, the guests still shows the partition even after the removal of the disk.

This issue is not seen with virt-io disk.

This issue is also reproducible without even creating the partitions.

Expected Result:

The output of fdisk /dev/sd* should not show the enties after the removal of scsi disks What happens if you run "scsi-rescan --remove" or "scsi-rescan --forcerescan" in the guest? (Paolo had recommended this to me for an independent problem / case.) Thanks for the input, I will try out and update the bug accordingly.

Regards, Chandrashekar

Laszlo