[Cbe-oss-dev] Kernel >2.6.39 on PS3 with SMP

[Andre Heider]

Hi,

when I boot a recent kernel I'm getting hangs early in the boot process.

The kernel boots most of the time, but when /sbin/init kicks in it
waits forever for something. I only get a few lines of output, mostly
udev related.
When the kernel does not boot, it seems to hang somewhere when mapping
the irqs (at least that's what the last lines of ps3fb output
suggest).
I can run into both situation with the same kernel binary. It's also
consistent with two userlands, I tried debian stable and testing.

When this happens, I can't interact with the system, so I don't have
much more info.

I bisected this to:

commit 317f394160e9beb97d19a84c39b7e5eb3d7815a8
Author: Peter Zijlstra <a.p.zijlstra at chello.nl>
Date:   Tue Apr 5 17:23:58 2011 +0200

    sched: Move the second half of ttwu() to the remote cpu

All kernels including this patch only work for me when booted with 'nosmp'.

Any ideas?

Thanks,
Andre