On 2017-06-19 14:55:35 [+0200], Mike Galbraith wrote:

On Mon, 2017-06-19 at 13:50 +0200, Sebastian Andrzej Siewior wrote:

quoted

rt20…rt21 is just
  https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/tree/patches/sched-Prevent-task-state-corruption-by-spurious-lock.patch?h=linux-4.9.y-rt-patches

Yup.  I got there via git checkout v4.9.x-rtx, build/test.

quoted

Let me verify that here and fire maybe the four socket box.

One thing perhaps interesting about the DL980 is that it is 8 socket,
but with 7 memoryless nodes (poor thing).  I wouldn't be surprised if
you had to try a lot harder than I.
DL980 now seems happy with master-rt21 fwtw.  It's not virgin though,
not even considering continuous merge 4.9..today.

Hopefully desktop will cease with the comatose widget business too, I
really don't want to go there.  These things give tglx headaches, might
well blow the point clean off of my head. 

I am suppressed that your desktop shows any symptoms on rt21. I tried my
smaller AMD box (A10), an Intel two sockets and a four socket box. Each
of them was fine with the run.sh and manual futex_wait invocation.
Could you please send the config of your desktop box?

	-Mike

Sebastian