Query on the dirty bitmap

Hello All,
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I have been trying with proxmox for a while now, and have come across a problem specific to dirty bitmaps. I have enabled bitmap on the qcow2 disk image using 'qemu-img bitmap' command, exposed the bitmap over a unix socket using 'qemu-nbd' command. Now when I try to read the bitmap using 'qemu-img map' command with 'x-dirty-bitmap=qemu:dirty-bitmap:{bitmap}' option, I get one single extent which shows that the entire disk is dirty. Note that the...

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