Package: ganeti-2.12 Version: 2.12.4-1+deb8u3 Severity: important We only noticed this bug after the latest Xen upgrades (that is 4.4.1-9+deb8u5 -> 4.4.1-9+deb8u6), however this upgrade may be unrelated to our issue.
When starting a Xen VM with ganeti, at some point the config file for the VM is moved from /etc/xen/VMCONFIGFILE to /var/log/ganeti/xen/VMCONFIGFILE-TIMESTAMP. For this move, python os.rename() is used. When /etc and /var are different partitions, this call is bound to fail with an "[Errno 18] Invalid cross-device link". Instead, it is possible to use python shutil.move(), which handles cross- partition moves different. For our setup the following patch was sufficient, since it is not the only call to os.rename() it might not cover the bug completely. /usr/share/ganeti/2.12/ganeti/utils/io.py 410c410,411 < return os.rename(old, new) --- > return shutil.move(old, new) -- System Information: Debian Release: 8.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.16.7-ckt25-2+deb8u3 Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
