Bug 1248312

Summary:	"fdisk -l"can not output anything and the process status is D+ after migrating RHEL7.2 guest with virtio-1 virtio-scsi disk
Product:	Red Hat Enterprise Linux 7	Reporter:	Yanhui Ma <yama>
Component:	qemu-kvm-rhev	Assignee:	jason wang <jasowang>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.2	CC:	dgilbert, huding, jasowang, juzhang, mrezanin, virt-maint, xfu, yama, zhengtli
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	qemu-kvm-rhev-2.3.0-18.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-12-04 16:52:55 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Yanhui Ma 2015-07-30 05:19:31 UTC

Description of problem:
After migrating RHEL7.2 guest with virtio-1 enabled virtio-scsi disk, run "fdisk -l", no output and the process status is D+.

If  w/o virito-1 enabled, can not hit such issue.

Version-Release number of selected component (if applicable):

source host:
3.10.0-297.el7.x86_64
qemu-kvm-rhev-2.3.0-13.el7.x86_64
destination host:
3.10.0-300.el7.x86_64
qemu-kvm-rhev-2.3.0-13.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1.boot a RHEL7.2 guest with virtio-1 enabled virtio-scsi disk in src host
/usr/libexec/qemu-kvm -S -M pc -cpu Opteron_G3 -enable-kvm -m 4096 \
-smp 4,sockets=4,cores=1,threads=1 -no-kvm-pit-reinjection -name sluo-test \
-uuid b18fdd6c-a213-4022-9ca4-5d07225e40b0 \
-rtc base=localtime,clock=host,driftfix=slew \
-device virtio-serial-pci,disable-legacy=true,disable-modern=false,id=virtio-serial0,max_ports=16,vectors=0,bus=pci.0,addr=0x3,ioeventfd=on \
-chardev socket,id=channel1,path=/home/testdisk/socketfile4Gqcow2,server,nowait \
-device virtserialport,chardev=channel1,name=com.redhat.rhevm.vdsm,bus=virtio-serial0.0,id=port1 \
-chardev socket,id=channel2,path=/home/testdisk/socketfile3Gqcow2,server,nowait \
-device virtserialport,chardev=channel2,name=com.redhat.rhevm.vdsm1,bus=virtio-serial0.0,id=port2 \
-drive file=/home/RHEL-Server-7.2-64-virtio-scsi.qcow2,if=none,id=drive-system-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop,serial=QEMU-DISK1 \
-device virtio-scsi-pci,id=scsi0,bus=pci.0,ioeventfd=off -device scsi-hd,bus=scsi0.0,drive=drive-system-disk,id=system-disk,channel=0,scsi-id=0,lun=0,ver=mike,serial=ababab,bootindex=1 \
-netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup \
-device virtio-net-pci,netdev=hostnet0,id=virtio-net-pci0,mac=08:2e:5f:0a:1d:b1,bus=pci.0,addr=0x5,bootindex=2 \
-device virtio-balloon-pci,disable-legacy=true,disable-modern=false,id=ballooning,bus=pci.0,addr=0x6 \
-serial unix:/tmp/ttyS0,server,nowait \
-qmp tcp:0:4444,server,nowait -k en-us -boot menu=on \
-vnc :1 -spice disable-ticketing,port=5931 -vga qxl -monitor stdio \
-device pci-bridge,id=bridge1,bus=pci.0,chassis_nr=1 \
-drive file=/home/testdisk/virtio-scsi-disk10G.qcow2,if=none,id=drive-data-disk1,format=qcow2,cache=none,werror=stop,rerror=stop,aio=native,media=disk \
-device virtio-scsi-pci,id=scsi1,bus=bridge1,addr=0xa ,disable-legacy=true,disable-modern=false -device scsi-hd,bus=scsi1.0,drive=drive-data-disk1,serial=test,id=data-disk1,physical_block_size=512,logical_block_size=512 \
-drive file=/home/driver.iso,if=none,media=cdrom,readonly=on,format=raw,id=cdrom1 -device scsi-cd,bus=scsi1.0,drive=cdrom1,id=scsi0-0
2.boot guest with listenning mode in destination host
3. migrate to destination host
4.after migrate, run "fdisk -l" & "ps aux | grep fdisk" in guest

Actual results:

after "fdisk -l", no output, after "ps aux | grep fdisk" the process status is D+.
ps aux | grep fdisk
root      3109  0.0  0.0 112420   956 pts/0    D+   11:16   0:00 fdisk -l
root      3836  0.0  0.0 112640   928 pts/1    S+   12:24   0:00 grep --color=auto fdisk

Expected results:
run "fdisk -l" successfully
Additional info:

If  w/o virito-1 enabled, can not hit such issue.

Comment 1 jason wang 2015-07-30 05:34:34 UTC

Did upstream qemu.git work for this?

Comment 9 Miroslav Rezanina 2015-08-14 16:22:33 UTC

Fix included in qemu-kvm-rhev-2.3.0-18.el7

Comment 10 Yanhui Ma 2015-08-18 10:04:26 UTC

reproduce the issue:

source host:
3.10.0-303.el7.x86_64
qemu-kvm-rhev-2.3.0-17.el7.x86_64
destination host:
3.10.0-304.el7.x86_64
qemu-kvm-rhev-2.3.0-17.el7.x86_64

steps:
the steps is the same as steps in description

results:
after "fdisk -l", no output, after "ps aux | grep fdisk" the process status is D+.
ps aux | grep fdisk
root      3109  0.0  0.0 112420   956 pts/0    D+   11:16   0:00 fdisk -l
root      3836  0.0  0.0 112640   928 pts/1    S+   12:24   0:00 grep --color=auto fdisk

============================================================================

verify the issue:
source host:
3.10.0-303.el7.x86_64
qemu-kvm-rhev-2.3.0-18.el7.x86_64
destination host:
3.10.0-304.el7.x86_64
qemu-kvm-rhev-2.3.0-18.el7.x86_64

steps:
the steps is the same as steps in description

results:

run "fdisk -l" successfully


Based on the above results, I think the bug is fixed.

Comment 12 juzhang 2015-08-24 01:34:11 UTC

According to comment10, set this issue as verified.

Comment 13 jason wang 2015-08-26 06:10:57 UTC

*** Bug 1247541 has been marked as a duplicate of this bug. ***

Comment 15 errata-xmlrpc 2015-12-04 16:52:55 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2546.html