Package: mesa Version: 21.2.1-2 Control: notfound -1 21.1.6-1 Control: found -1 21.2.0-1
The mesa DRI drivers (and possibly other binary packages I haven't tested) appear to violate the i386 baseline by using SSE2 unconditionally, even if the host CPU doesn't support it (tested on a Pentium III), which results in even the simplest programs like glxinfo or glxgears crashing with SIGILL. The solution is simple: rebuild the package with the meson option "sse2" set to false, to follow the Debian baseline.
