Hi,
This is continuation of a discussion at etoys-dev http://lists.squeakland.org/pipermail/etoys-dev/2010-October/005949.html
Essentially, 4.x Linux VMs may fail with an error:
Could not load library: /lib/libc.so.6: version `GLIBC_2.7' not found
This is due to their dependency on libc6-2.7 or later. This version shipped in Ubuntu 8.04+ and kernels 2.6.24+. Machines with 256MB RAM running perfectly well on Ubuntu 7.10 became terribly slow when upgraded to 8.04 (google for "ubuntu hardy slow"). Linux kernel degraded poorly when faced with memory pressure caused by increased working set of 8.04. People with 256MB RAM systems (e.g. schools) could not upgrade to distros with libc6 v2.7+ without upgrading their hardware.
XOs have 256MB RAMs and so do virtual machines that run in qemu or kvm. So the increased requirement may affect these deployments.
Has anyone faced this issue in Squeak v4.1 on production machines?
Subbu