Package: xen-doc Version: 4.11.1+92-g6c33308a8d-2+b1 Severity: normal file:///usr/share/doc/xen/html/index.html contains a link to file:///usr/share/doc/xen/html/misc/vtd.txt (VT-d HOWTO), but that file doesn't exist. There is a .../misc/vtd.txt.gz file though. A similar pattern can be found with various other .txt files, but not all. Since this is HTML documentation and presumably meant to be read in a browser (which is what I did), I think those .txt.gz files should be stored as .txt, so they can be viewed in the browser and it would make the hyperlink actually work.
(Sidenote: I doubt including a file mentioning how to compile your own 2.6.18 kernel to include support for VT-d is useful, and it is 10+ y/o, but that's probably an upstream issue) -- System Information: Debian Release: bullseye/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (101, 'experimental'), (1, 'experimental-debug') Architecture: amd64 (x86_64) Kernel: Linux 5.2.0-3-amd64 (SMP w/16 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) LSM: AppArmor: enabled -- no debconf information