Package: qemu-utils Version: 1:2.8+dfsg-6+deb9u8 Severity: important Dear Maintainer,
I tried to consolidate a qcow2 disk with a backing chain to a new qcow2 disk without touching any of the original files. In this backing chain I have one of the backing file that has been extended with "qemu-img resize". To consolidate I use "qemu-img convert" on the top file, but the process never ends. When running with trace ('-T *') the process looks like stuck in a loop. How to reproduce: qemu-img create -f qcow2 disk0.qcow2 1G qemu-img create -f qcow2 -b disk0.qcow2 disk1.qcow2 qemu-img resize disk1.qcow2 +1G qemu-img create -f qcow2 -b disk1.qcow2 disk2.qcow2 qemu-img convert -O qcow2 disk2.qcow2 disk-all.qcow2 Converting from the extended disk is working: qemu-img convert -O qcow2 disk1.qcow2 disk-all.qcow2 Converting with buster version (1:3.1+dfsg-8+deb10u3) is working. Thanks. -- System Information: Debian Release: 9.8 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-8-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages qemu-utils depends on: ii libaio1 0.3.110-3 ii libc6 2.24-11+deb9u4 ii libgcc1 1:6.3.0-18+deb9u1 ii libglib2.0-0 2.50.3-2 ii libgnutls30 3.5.8-5+deb9u4 ii libnettle6 3.3-1+b2 ii zlib1g 1:1.2.8.dfsg-5 qemu-utils recommends no packages. Versions of packages qemu-utils suggests: ii debootstrap 1.0.89 pn qemu-block-extra <none> -- no debconf information