Bug#823465: dpkg: Won't run at all on i586 Pentium MMX due to illegal instruction

[Pierre Ynard <linkfanel@yahoo.fr>]

I've successfully downgraded most of my system from unstable to jessie,
so this seems to be workable.

Among the things I run, there's only MySQL that can't be downgraded just
like that from unstable's 5.6 to jessie's 5.5, and for which there is
no backport of 5.6; and also libstdc++6 that I can't downgrade from GCC
5 to GCC 4.9 because mysql binaries depend on it. An unsupported MySQL
server is a nice attack vector.

Is that kind of downgrade supposed to be supported? I encountered
configuration migration problems for apt and postfix, shall I file bugs
for these?

I still think this bug should be marked as wontfix because "enjoy 4
years of jessie" is not a real fix to the problem.

Thanks for the guidance,

-- 
Pierre Ynard
"Une âme dans un corps, c'est comme un dessin sur une feuille de papier."