Bug 1122847
| Summary: | qemu-img convert doesn't print "No space left on device" strings error when the destination lv has no enough space | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Sibiao Luo <sluo> |
| Component: | qemu-kvm | Assignee: | Hanna Czenczek <hreitz> |
| Status: | CLOSED NOTABUG | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.5 | CC: | acathrow, bsarathy, chayang, juzhang, michen, mkenneth, qzhang, virt-bugs, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1122830 | Environment: | |
| Last Closed: | 2014-07-24 23:12:10 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: | |||
| Bug Depends On: | 1122830 | ||
| Bug Blocks: | |||
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Comment 1
Sibiao Luo
2014-07-24 08:27:27 UTC
See BZ 1122830 for a full description why this is not a bug (the volume being results in (nearly) no clusters being allocated in the qcow2 image, which makes it small enough to fit into the smaller volume; a non-zeroed source volume indeed results in the desired error message). (In reply to Max Reitz from comment #2) > See BZ 1122830 for a full description why this is not a bug (the volume > being results in (nearly) no clusters being allocated in the qcow2 image, > which makes it small enough to fit into the smaller volume; a non-zeroed > source volume indeed results in the desired error message). Thanks a lot. # lvscan | grep /dev/vg/ ACTIVE '/dev/vg/lv1' [100.00 MiB] inherit ACTIVE '/dev/vg/lv2' [20.00 MiB] inherit # qemu-img create -f qcow2 /dev/vg/lv2 20M Formatting '/dev/vg/lv2', fmt=qcow2 size=20971520 encryption=off cluster_size=65536 lazy_refcounts=off # qemu-img info /dev/vg/lv1 image: /dev/vg/lv1 file format: raw virtual size: 100M (104857600 bytes) disk size: 0 # qemu-img info /dev/vg/lv2 image: /dev/vg/lv2 file format: qcow2 virtual size: 20M (20971520 bytes) disk size: 0 cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: false # dd if=/dev/urandom of=/dev/vg/lv1 bs=1M dd: error writing ‘/dev/vg/lv1’: No space left on device 101+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 10.8566 s, 9.7 MB/s # qemu-img convert -p -f raw -O qcow2 /dev/vg/lv1 /dev/vg/lv2 qemu-img: error while writing sector 36864: No space left on device Best Regards, sluo |