Description of problem:
qcow2 image corrupted after a migration loop
According to https://bugzilla.redhat.com/show_bug.cgi?id=1052093#c17, report this bug.
I have run a migration test loop using autotest.
1. At the beginning of the test, the images has no error.
2. After some cases running, met warning 'Leaked clusters were noticed during image check. No data integrity problem was found though.'.
3. Run more cases, the image is corrupted.
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR cluster 105675 refcount=0 reference=1
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR cluster 105676 refcount=0 reference=1
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR cluster 105677 refcount=0 reference=1
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR OFLAG_COPIED data cluster: l2_entry=8000000181b80000 refcount=0
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR OFLAG_COPIED data cluster: l2_entry=8000000181b90000 refcount=0
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR OFLAG_COPIED data cluster: l2_entry=8000000181ba0000 refcount=0
01/14 14:23:37 ERROR|qemu_stora:0431| [stderr] ERROR OFLAG_COPIED data cluster: l2_entry=8000000181bb0000 refcount=0
Version-Release number of selected component (if applicable):
kernel-3.10.0-67.el7.x86_64
qemu-kvm-rhev-1.5.3-35.el7.x86_64
How reproducible:
1 / 1
Steps to Reproduce:
1. run a migration loop with autotest
2.
3.
Actual results:
image corrupted after the migration loop
Expected results:
image has no error after the migration loop
Additional info:
1. QEMU CML:
/home/staf-kvm-devel/autotest-devel/client/tests/virt/qemu/qemu \
-S \
-name 'virt-tests-vm1' \
-sandbox off \
-M pc \
-nodefaults \
-vga qxl \
-global qxl-vga.vram_size=33554432 \
-chardev socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20140114-142327-dOX77U24,server,nowait \
-mon chardev=qmp_id_qmpmonitor1,mode=control \
-chardev socket,id=serial_id_serial0,path=/tmp/serial-serial0-20140114-142327-dOX77U24,server,nowait \
-device isa-serial,chardev=serial_id_serial0 \
-chardev socket,id=seabioslog_id_20140114-142327-dOX77U24,path=/tmp/seabios-20140114-142327-dOX77U24,server,nowait \
-device isa-debugcon,chardev=seabioslog_id_20140114-142327-dOX77U24,iobase=0x402 \
-device ich9-usb-uhci1,id=usb1,bus=pci.0,addr=03 \
-drive id=drive_image1,if=none,cache=none,snapshot=off,aio=native,file=/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/images/RHEL-Server-7.0-64-virtio.qcow2 \
-device virtio-blk-pci,id=image1,drive=drive_image1,bootindex=0,bus=pci.0,addr=04 \
-device virtio-net-pci,mac=9a:bd:be:bf:c0:c1,id=idqyFAse,netdev=idSIxMtI,bus=pci.0,addr=05 \
-netdev tap,id=idSIxMtI,vhost=on,vhostfd=23,fd=22 \
-m 2048 \
-smp 1,maxcpus=1,cores=1,threads=1,sockets=2 \
-cpu 'Opteron_G3',+kvm_pv_unhalt \
-device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \
-spice port=3000,password=123456,addr=0,image-compression=auto_glz,zlib-glz-wan-compression=auto,streaming-video=all,agent-mouse=on,playback-compression=on,ipv4 \
-rtc base=utc,clock=host,driftfix=slew \
-boot order=cdn,once=c,menu=off \
-no-kvm-pit-reinjection \
-enable-kvm