Bug 1535125
| Summary: | Mirror jobs for drives with iothreads make QEMU to abort with "block.c:1895: bdrv_attach_child: Assertion `bdrv_get_aio_context(parent_bs) == bdrv_get_aio_context(child_bs)' failed." [rhel-7.4.z] | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Oneata Mircea Teodor <toneata> |
| Component: | qemu-kvm-rhev | Assignee: | Stefan Hajnoczi <stefanha> |
| Status: | CLOSED ERRATA | QA Contact: | Qianqian Zhu <qizhu> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 7.4 | CC: | aliang, amureini, chayang, coli, gwatson, juzhang, knoel, michen, mkalinin, mtessun, qizhu, slopezpa, stefanha, virt-maint, xfu |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-2.9.0-16.el7_4.14 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1534491 | Environment: | |
| Last Closed: | 2018-03-08 10:04:50 UTC | Type: | --- |
| 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: | 1534491 | ||
| Bug Blocks: | |||
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Description
Oneata Mircea Teodor
2018-01-16 16:32:49 UTC
Fix included in qemu-kvm-rhev-2.9.0-16.el7_4.14 Verified on qemu-kvm-rhev-2.9.0-16.el7_4.14.x86_64:
Steps:
1. # qemu-img create -f raw base.img 1g
2. # qemu-img create -f qcow2 -o backing_file=base.img top1.qcow2
Formatting 'top1.qcow2', fmt=qcow2 size=1073741824 backing_file=base.img encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
3. # qemu-img create -f qcow2 -o backing_file=base.img top2.qcow2
4. # /usr/libexec/qemu-kvm -m 1g -drive if=none,file=top1.qcow2,format=qcow2,id=drive0 -object iothread,id=iothread0 -device virtio-blk-pci,iothread=iothread0,drive=drive0 -monitor stdio
5. (qemu) drive_mirror -n drive0 top2.qcow2
6. (qemu) info block-jobs
Type mirror, device drive0: Completed 0 of 0 bytes, speed limit 0 bytes/s
7. (qemu) block_job_complete drive0
Result:
Block job completed correctly:
(qemu) info block
drive0 (#block516): top2.qcow2 (qcow2)
Cache mode: writethrough
Backing file: base.img (chain depth: 1)
ide1-cd0: [not inserted]
Removable device: not locked, tray closed
floppy0: [not inserted]
Removable device: not locked, tray closed
sd0: [not inserted]
Removable device: not locked, tray closed
(qemu) quit
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/RHBA-2018:0468 |