| Summary: | Guest image occured error in qemu-img check after enlarge a small lvm to resume installing guest. | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | xiagao | |
| Component: | qemu-kvm | Assignee: | Kevin Wolf <kwolf> | |
| Status: | CLOSED NEXTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | medium | |||
| Version: | 6.8 | CC: | ailan, chayang, coli, juzhang, meyang, mkenneth, ngu, pingl, rbalakri, shuang, timao, virt-maint, xutian, xuwei | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | x86_64 | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | Bug Fix | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1302929 1302930 (view as bug list) | Environment: | ||
| Last Closed: | 2016-02-16 19:49:02 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: | ||
| Bug Depends On: | ||||
| Bug Blocks: | 1302929, 1302930, 1610930 | |||
Can reproduce it on rhel6.7 release version. pkg version: qemu-kvm-rhev-0.12.1.2-2.479.el6.x86_64 qemu-img-rhev-0.12.1.2-2.479.el6.x86_64 When trigger cont after extend lvm at the first time, the image occured error. |
Description of problem: Install rhel6.7 guest on a small lvm based iscsi storage, and enlarge lvm to resume installing guest when there is no space. After installation, check guest image with error info. Version-Release number of selected component (if applicable): qemu-kvm-rhev-0.12.1.2-2.483.el6.x86_64 qemu-img-rhev-0.12.1.2-2.483.el6.x86_64 kernel-2.6.32-595.el6.x86_64 How reproducible: 4/5 Steps to Reproduce: 1.login iscsi server and create lvm on host. # iscsiadm -m node -T iqn.2016-01.com.xiagao:server.target0 -p 10.66.83.216 --login # vgcreate vgtest /dev/sdc # lvcreate -L 3g -n lvtest vgtest # lvs lvtest vgtest -wi-a----- 3.00g 2.Create a large enough qcow2 file on lvm . # qemu-img create -f qcow2 /dev/vgtest/lvtest 80G 3.Install rhel6.7.z guest with -drive file=...,format=qcow2...., using pxe installaion method /usr/libexec/qemu-kvm \ -S \ -name 'virt-tests-vm1' \ -machine rhel6.6.0 \ -nodefaults \ -vga cirrus \ -drive file=/dev/vgtest/lvtest,if=none,id=drive-virtio-disk0,boot=on,format=qcow2,cache=none,werror=stop,rerror=stop \ -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ -device virtio-net-pci,mac=9a:d5:d6:d7:d8:d9,id=idnNqY2H,vectors=4,netdev=idz3Tned,bus=pci.0,addr=05 \ -netdev tap,id=idz3Tned \ -m 4096 \ -smp 4,cores=4,threads=1,sockets=1 \ -cpu 'Conroe' \ -vnc :0 \ -enable-kvm \ -monitor stdio 4.wait until vm pause on no space 5.extend the lvm. # lvextend -L +50M /dev/vgtest/lvtest 6.in qmp monitor . issue cont. for qmp : {"execute":"cont"} 7. repeat 4~6. 8. after installation, check guest image Actual results: #qemu-img check /dev/vgtest/lvtest Leaked cluster 49092 refcount=1 reference=0 Leaked cluster 49093 refcount=1 reference=0 Leaked cluster 49094 refcount=1 reference=0 Leaked cluster 49095 refcount=1 reference=0 Leaked cluster 49096 refcount=1 reference=0 ........ Leaked cluster 69715 refcount=1 reference=0 Leaked cluster 69716 refcount=1 reference=0 Leaked cluster 69717 refcount=1 reference=0 Leaked cluster 69718 refcount=1 reference=0 Leaked cluster 69719 refcount=1 reference=0 Leaked cluster 69720 refcount=1 reference=0 4595 leaked clusters were found on the image. This means waste of disk space, but no harm to data. Image end offset: 4759093248 Expected results: no error. Additional info: 1.host cpu info processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) Dual Core Processor 5400B stepping : 2 cpu MHz : 1000.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow rep_good extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch lbrv 2.after installation,check lvm # lvs lvtest vgtest -wi-a----- 4.74g 3.guest can boot normally. 4.guest imag info # qemu-img info /dev/vgtest/lvtest image: /dev/vgtest/lvtest file format: qcow2 virtual size: 80G (85899345920 bytes) disk size: 0 cluster_size: 65536