Bug 720271

Summary: usb storage can not format in the guest
Product: Red Hat Enterprise Linux 6 Reporter: Mike Cao <bcao>
Component: qemu-kvmAssignee: Gerd Hoffmann <kraxel>
Status: CLOSED NOTABUG QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: bcao, juzhang, michen, mkenneth, tburke, virt-maint
Target Milestone: rcKeywords: Reopened
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2011-08-15 16:00:25 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
Call trace in guest dmesg none

Description Mike Cao 2011-07-11 10:00:49 UTC 
Description of problem:


Version-Release number of selected component (if applicable):
# uname -r &&rpm -q qemu-kvm
2.6.32-166.el6.x86_64
qemu-kvm-0.12.1.2-2.169.el6.x86_64


How reproducible:
2/2

Steps to Reproduce:
1.prepare a pre-installed guest 
2.qemu-img create -f qcow2 test.img 20G
3.start the pre-installed guest with -drive file=test,if=none,id=test1,format=qcow2,cache=none,werror=stop,rerror=stop -device usb-storage,drive=test1,id=test1
3.in the guest fdisk /dev/sda to make it as partition :/dev/sda1
4,mkfs.ext4 /dev/sda1 

  
Actual results:
format will never completed.Call trace found in guest dmesg.

Expected results:
disk could be formatted successfully.


Additional info:
FUll commandline:
/usr/libexec/qemu-kvm -M rhel6.2.0 -enable-kvm -m 1024 -smp 2,sockets=2,cores=1,threads=1 -name Test -uuid 2e426ce8-0cfa-48f7-13df-5cfaa2d15368 -rtc base=utc -boot c -drive file=/var/lib/libvirt/images/Test.img,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=threads -device virtio-blk-pci,bus=pci.0,addr=0x5,bootindex=1,drive=drive-virtio-disk0,id=virtio-disk0,scsi=on -netdev tap,id=hostnet0,vhost=on -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:07:ce:0d,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -device usb-tablet,id=input0 -vnc 0.0.0.0:0 -vga cirrus -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -drive file=test,if=none,id=test1,format=qcow2,cache=none,werror=stop,rerror=stop -device usb-storage,drive=test1,id=test1 -monitor stdio
Comment 1 Mike Cao 2011-07-11 10:04:33 UTC 
Created attachment 512168 [details]
Call trace in guest dmesg
Comment 2 Mike Cao 2011-07-12 05:30:26 UTC 
Tried with  -device usb-ehci,id=ehci the problem was gone ,close as not a bug ,sorry for inconvenience
Comment 3 juzhang 2011-08-04 08:31:00 UTC 
for now we still support usb 1.1 (UHCI controller),reopen this issue
Hit this issue with qemu-kvm-tools-0.12.1.2-2.175.el6.x86_64.
Command line
-usb -device usb-hub,bus=usb.0,port=1 -device usb-storage,bus=usb.0,port=1.1,drive=usbstick1
Comment 4 Gerd Hoffmann 2011-08-12 09:22:41 UTC 
How long did you wait?  Note that usb-storage attached to UHCI is *very* slow, so it will take a while, but it should succeed in the end.
Comment 5 Mike Cao 2011-08-15 09:13:03 UTC 
(In reply to comment #4)
> How long did you wait?  Note that usb-storage attached to UHCI is *very* slow,
> so it will take a while, but it should succeed in the end.

It costs me 9m15s to format 1GB UHCI usb disk ,
Comment 6 Gerd Hoffmann 2011-08-15 16:00:25 UTC 
Ok, so it actually works, great.  That it can take 10 minutes is normal.
You can use smaller disks (such as 32 MB) for USB 1.1 to speed up testing.