[maemo-developers] Maemo SDK scratchbox breaks with Debian lenny upgrade

[From: Graham Cobb]

I have just installed the latest Debian lenny upgrades on one of my systems, 
which installed a new linux kernel, and scratchbox has broken!  This appears 
to be the (well known) VDSO problem but the workround I found using Google 
(echo 0 > /proc/sys/vm/vdso_enabled) does not work (that file does not 
exist), neither does vdso=0 (or 2) on the boot command line.  I presume the 
problem is that Debian has decided to change this feature even though it 
breaks user programs.

This is a real pain.  I build 40 packages every night for chinook, bora and 
gregale, which, as you can guess, requires a fairly complex build 
environment.    Currently the builds use either chroot or user-mode-linux 
environments which give reasonable speed (but builds still take up to 6 
hours!) but use the host system's kernel.  I really do not want to go back to 
an emulation environment, just so that I can run a separate kernel, because 
that gives poor reliability and **much** slower builds -- builds will likely 
take 24 hours.  It also means I cannot compile modules for testing in my 
normal build environment.

Does anyone know when scratchbox and the SDK environments will be fixed to 
work with up to date Debian kernels?  Note that, if the Maemo community want 
programs like GPE to continue to be maintained for the 770 user community 
then these fixes have to also apply to gregale (and bora for N800 users who 
have never upgraded).

In the immediate term I will go back to using the previous kernel but these 
systems are my normal user and development machines so I can't live with out 
of date kernels for long.  I can also build my own kernel but I do want to 
return to using stock Debian kernels as soon as I can.

Any suggestions are welcome.

Graham