Bug 1212715
| Summary: | qemu-img gets wrong actual path of backing file when the file name contains colon | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Yang Yang <yanyang> |
| Component: | qemu-kvm-rhev | Assignee: | Hanna Czenczek <hreitz> |
| Status: | CLOSED ERRATA | QA Contact: | Ping Li <pingl> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.2 | CC: | aliang, cliao, coli, dyuan, hachen, hhuang, juzhang, michen, mrezanin, mzhan, ngu, pingl, virt-maint, xfu, xuwei, xuzhang |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-2.10.0-1.el7 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-04-11 00:09:32 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: | |||
Version-Release number of selected component:
kernel-3.10.0-732.el7.x86_64
qemu-kvm-rhev-2.10.0-1.el7
Test steps:
1. Create two images with qcow2 format
# qemu-img create -f qcow2 ./kvm-qe:test1.qcow2 2G
Formatting './kvm-qe:test1.qcow2', fmt=qcow2 size=2147483648 cluster_size=65536 lazy_refcounts=off refcount_bits=16
# qemu-img create -f qcow2 ./kvm-qe:test2.qcow2 2G
Formatting './kvm-qe:test2.qcow2', fmt=qcow2 size=2147483648 cluster_size=65536 lazy_refcounts=off refcount_bits=16
2. Rebase one image to the other one using unsafe mode
# qemu-img rebase -u -f qcow2 -b ../test/kvm-qe\:test1.qcow2 -F qcow2 ./kvm-qe\:test2.qcow2
3. Check the info of snapshot, acutal path of backing file must be correct.
# qemu-img info /home/tests/test/kvm-qe\:test2.qcow2
image: /home/tests/test/kvm-qe:test2.qcow2
file format: qcow2
virtual size: 2.0G (2147483648 bytes)
disk size: 196K
cluster_size: 65536
backing file: ../test/kvm-qe:test1.qcow2 (actual path: /home/tests/test/../test/kvm-qe:test1.qcow2)
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: false
refcount bits: 16
corrupt: false
According to the test result above, set the bug status as verified.
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://access.redhat.com/errata/RHSA-2018:1104 |
Description of problem: qemu-img gets wrong actual path of backing file when the file name contains colon Version-Release number of selected component (if applicable): qemu-kvm-rhev-2.2.0-8.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.create an iscsi pool # virsh pool-dumpxml iscsi <pool type='iscsi'> <name>iscsi</name> <uuid>77fbec86-a460-449e-835d-9704a0e26c9c</uuid> <capacity unit='bytes'>11811160064</capacity> <allocation unit='bytes'>11811160064</allocation> <available unit='bytes'>0</available> <source> <host name='10.66.5.63' port='3260'/> <device path='iqn.2001-01.com.virttest:iscsi-pool.target'/> </source> <target> <path>/dev/disk/by-path</path> <permissions> <mode>0755</mode> <owner>-1</owner> <group>-1</group> </permissions> </target> </pool> # virsh vol-list iscsi Name Path ------------------------------------------------------------------------------ unit:0:0:1 /dev/disk/by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-1 unit:0:0:2 /dev/disk/by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-2 unit:0:0:3 /dev/disk/by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3 unit:0:0:4 /dev/disk/by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-4 2. # ll /dev/disk/by-path/ total 0 lrwxrwxrwx. 1 root root 9 Apr 17 13:32 ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-1 -> ../../sdd lrwxrwxrwx. 1 root root 9 Apr 17 13:32 ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-2 -> ../../sde lrwxrwxrwx. 1 root root 9 Apr 17 13:32 ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3 -> ../../sdf lrwxrwxrwx. 1 root root 9 Apr 17 13:53 ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-4 -> ../../sdg 3.rewrite unit:0:0:4 backed by unit:0:0:3 with RELATIVE path # cd /dev/disk/by-path # qemu-img rebase -f qcow2 -u -b ../by-path/ip-10.66.5.63\:3260-iscsi-iqn.2001-01.com.virttest\:iscsi-pool.target-lun-3 -F qcow2 ip-10.66.5.63\:3260-iscsi-iqn.2001-01.com.virttest\:iscsi-pool.target-lun-4 4. check backing file # qemu-img info /dev/disk/by-path/ip-10.66.5.63\:3260-iscsi-iqn.2001-01.com.virttest\:iscsi-pool.target-lun-4 image: /dev/disk/by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-4 file format: qcow2 virtual size: 2.0G (2147483648 bytes) disk size: 0 cluster_size: 65536 backing file: ../by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3 (actual path: /dev/disk/by-path/ip-10.66.5.63:../by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3) backing file format: qcow2 Format specific information: compat: 1.1 lazy refcounts: false corrupt: false 5.check if the actual path of backing file exists # ll /dev/disk/by-path/ip-10.66.5.63:../by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3 ls: cannot access /dev/disk/by-path/ip-10.66.5.63:../by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3: No such file or directory Actual results: Qemu-img gets wrong actual path Expected results: actual path should be /dev/disk/by-path/../by-path/ip-10.66.5.63:3260-iscsi-iqn.2001-01.com.virttest:iscsi-pool.target-lun-3 Additional info: