On Monday 28 May 2007, Thomas Gleixner wrote:

On Mon, 2007-05-28 at 17:14 +0200, Michael Buesch wrote:

quoted

quoted

The -oldconfig1 is the kernel that had no problems and the other shows
the b44 problem. So if High Resolution Timer Support is disabled
everything works fine and if I enable it the problems do appear again.

I didn't test this on my 2.6.22-rc3 kernel yet, but I guess disabling
High Resolution Timer Support will also solve the problem there.

The older kernels I tried also work perfectly fine and they didn't have
the High Resolution Timer Support yet.

So, that's interesting, indeed.
Any idea what's going on, someone? Thomas?

Not off the top of my head.

Maximilian, does the kernel work otherwise (I mean aside of the b44
driver) ?

Can you please keep CONFIG_HIGH_RES_TIMERS and CONFIG_NOHZ and try the
following combinations on the kernel command line:

1) highres=off nohz=off (should be the same as your working config)
2) highres=off
3) nohz=off

I tested this with my 2.6.22-rc3 kernel, here are the results:

without any special boot parameters: problem does appear
highres=off nohz=off: problem does not appear
highres=off: problem does not appear
nohz=off: problem does appear

I additionally built my 2.6.22-rc2-mm1 kernel without High Resolution Timer, 
but the high ping problem is still there.

Maxi