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[Qemu-devel] [Bug 1808928] Re: Bitmap Extra data is not supported
From: |
John Snow |
Subject: |
[Qemu-devel] [Bug 1808928] Re: Bitmap Extra data is not supported |
Date: |
Tue, 12 Feb 2019 01:16:07 -0000 |
Hi, bitmap extensions have a field that allows us to attach
extra/arbitrary data to them. It is not currently used by QEMU. If this
field is set, it means something corrupted your qcow2.
Please make a backup of your qcow2 file first (because attempting to
repair a broken qcow2 can sometimes make it worse), and then please try
running qemu-img check to try and diagnose the image.
What happened to cause the "disastrous error", do you recall?
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https://bugs.launchpad.net/bugs/1808928
Title:
Bitmap Extra data is not supported
Status in QEMU:
New
Bug description:
i am using dirty bitmaps and drive-backup. It works as aspected.
Lately, i encounter a disastrous error. There is not any information
about that situation. I cannot reach/open/attach/info or anything with
a qcow2 file.
virsh version
Compiled against library: libvirt 4.10.0
Using library: libvirt 4.10.0
Using API: QEMU 4.10.0
Running hypervisor: QEMU 2.12.0
"qemu-img: Could not open '/var/lib/libvirt/images/test.qcow2': Bitmap
extra data is not supported"
what is that mean? what should i do?
i cannot remove bitmap. i cannot open image or query.
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- [Qemu-devel] [Bug 1808928] Re: Bitmap Extra data is not supported,
John Snow <=