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Bug 918831 - fail to block_resize local data disk with AHCI disk_interface
Summary: fail to block_resize local data disk with AHCI disk_interface
Keywords:
Status: CLOSED DUPLICATE of bug 852348
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Jeff Cody
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 852257 852348
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-03-07 02:49 UTC by Sibiao Luo
Modified: 2013-11-05 19:37 UTC (History)
13 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 852348
Environment:
Last Closed: 2013-11-05 19:37:03 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Comment 1 Sibiao Luo 2013-03-07 03:13:38 UTC 
When enlarge a AHCI data disk with "block_resize" QEMU command, then reboot the guest, find this disk has no any size changes from guest, but check in the host the data disk has changed size in local host.

host info:
kernel-3.8.0-0.37.el7.x86_64
qemu-kvm-1.3.0-7.el7.x86_64
guest info:
kernel-3.8.0-0.37.el7.x86_64

Steps to Reproduce:
1.creat a data disk in local host.
# qemu-img create -f raw my-data-disk.raw 10G
Formatting 'my-data-disk.raw', fmt=raw size=10737418240
2.boot a guest attached the data disk with AHCI interface.
# <qemu-kvm-command-line>...-M pc-1.3 -device ahci,id=ahci0,addr=0x5 -drive file=my-data-disk.raw,if=none,id=drive-data-disk,format=raw,cache=none,aio=native -device ide-hd,bus=ahci0.0,drive=drive-data-disk,id=data-disk
3.block_resize the data disk.
(qemu) info block
drive-system-disk: removable=0 io-status=ok file=/home/RHEL-Server-7.0-64-virtio.qcow2 ro=0 drv=qcow2 encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
drive-data-disk: removable=0 io-status=ok file=my-data-disk.raw ro=0 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
...    
(qemu) block_resize drive-data-disk 15G
4.reboot the guest to check the disk size changes.
# fdisk -l

Result:
after the step 4, there is no any size changes of the data disk in guest.
# fdisk -l
Disk /dev/sda: 10.7 GB
...

But check the data disk in the host is 15G.
# ls -lh my-data-disk.raw
-rw-r--r--. 1 root root 15G Mar  7 10:38 my-data-disk.raw
Comment 2 Hai Huang 2013-03-07 19:58:10 UTC 
Please reassign as appropriate.
Comment 3 Kevin Wolf 2013-03-08 10:05:14 UTC 
As far as I'm concerned, this is a duplicate of bug 852348 because the ATA command handling code is shared between AHCI and IDE.

I'll leave the bug open in case this is useful for tracking the testing, but this isn't supposed to be addressed separately. If it isn't useful for QE, it can be closed as a duplicate.
Comment 4 Sibiao Luo 2013-03-08 10:10:47 UTC 
(In reply to comment #3)
> As far as I'm concerned, this is a duplicate of bug 852348 because the ATA
> command handling code is shared between AHCI and IDE.
> 
> I'll leave the bug open in case this is useful for tracking the testing, but
> this isn't supposed to be addressed separately. If it isn't useful for QE,
> it can be closed as a duplicate.
ok, after bug 852348 fixed, QE need to verify both the IDE and AHCI. thx for your kindly reminds.
Comment 5 Ademar Reis 2013-11-05 19:37:03 UTC 

*** This bug has been marked as a duplicate of bug 852348 ***
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