>>I just confirmed now that downgrading to the version of `sqv` in >>Debian stable (which also downgraded `apt` and `apt-utils`) brings the >>system back to a usable state. > > The architecture baseline for i386 was raised.
According to https://wiki.debian.org/ArchitectureSpecificsMemo#i386-1 [ FWIW, it was difficult to find that page, because the natural search terms like "baseline" are missing. ]: - i686 since Debian 12 'bookworm'. There's no MMX nor SSE. - Before that, "almost" i686 (no "long NOP"/NOPL) since Debian 9 'stretch' (gcc-6 6.1.1-1). - Before that, i586 since gcc-4.9 4.9-20140411-1 (2014). - Before that, i486 since gcc-4.1 4.1ds7-0exp7 (2006). - Before that, i386. Whereas my processor is a Pentium-III (mobile), i.e. an evolution of the Pentium-II itself an evolution of the famous Pentium Pro (aka *the* original i686). It has SSE but not SSE2 which only came a bit later. [ The vast majority of CPUs after i686 are already supported via amd64, so I don't understand what would be the benefit of raising the baseline even further. ] > Could you please post the output of `cat /proc/cpuinfo`, so we can > understand this better? Will do as soon as I'm back in the office where I have access to that laptop. Stefan
