* Marc Lehmann <debian-report...@plan9.de> [170228 02:21]: > Alternatively, since lvm and dmsetup from stretch do not have any issues > with kernel 4.4, I suspect systemd hardcodes version numbers in direct > calls instead of going through e.g. libdevmapper - going through a library > such as libdevmapper that hanmdles the kernel versions bettrer would also > take care of this issue, at least for current stretch.
This is a direct result of the dm-ioctl.h header file shipped by the Linux kernel (and the linux-libc-dev package) - any program compiled against that official header file will embed the version number used to build. Building systemd (or anything else) against a newer kernel will result in this problem for older kernels. libdevmapper works around this by embedding an old copy of dm-ioctl.h ... -c
