Originally Posted by zander
Note that vm.old_msync is not an environment variable, but a sysctl OID; you will need to set it manually using sysctl vm.old_msync=1 or make an appropriate entry in /etc/sysctl.conf.
Ok, i got it. Writing into sysctl.conf, appears the right value. But the system still crashes, even on my OTHER machine (Cel 300, Riva TNT2 Vanta, Intel 440 LX motherboard, so not a VIA bug). I run bzflag 2 times, after starting 3rd and quitting the screen freezes and 5-10 seconds a reboot occurs. (even old_msyn set to 1)