urgent help needed, pure64 -> gcc-3.4

[Corin Langosch <corinl@gmx.de>]

Hi,

we run a dual opteron 246 system with pure64 here for
80 days now. the server only runs mysql 4.1. i always
use the latest official mysql 4.1 binary
"mysql-standard-4.1.7-unknown-linux-x86_64-glibc23.tar.gz"

after changing pure64 to gcc-3.4 in apt/sources.list
and dist-upgrade, mysql always hang. tables got locked
but not unloked, so all queries blocked. also trying
to killall mysqld wasn't able - it just killed nothing
and the server kept running.

does anybody know why this happens? did i miss anything
important to upgrade? (i read something about apt-get
--reinstall - how to to this with all packages? it always
wants a list of packages...)

we reinstalled the whole system using pure64 and it works
again, so it must be something related to gcc-3.4.

it would be great it someone could tell me how to upgrade
to gcc-3.4 from pure64 so everything just works fine but
a with a little more performance :)

thanks a lot,
corin