On Sunday, 23 September 2007 21:59, Thomas Gleixner wrote:
quoted text
> On Sun, 2007-09-23 at 22:08 +0200, Rafael J. Wysocki wrote:
> > > > Since the boot fails very early, before any messages reach the (VGA) console,
> > > > I have no idea what to do next, except for digging in the code.
> > > 
> > > Ok, lets track it down. Is there any difference when you add:
> > > 
> > > nohz=off
> > > highres=off
> > > noapictimer
> > > 
> > > or any combinations of the above to the kernel command line ?
> > 
> > First, for now, I build all kernels with NO_HZ and HIGH_RES_TIMERS unset
> > (.config for 2.6.23-rc6-mm1 is attached).
> > 
> > Second, noacpitimer added to the command line makes all of the kernels, up to
> > and including 2.6.23-rc6-mm1, boot (this seems to be 100% reproducible).
> 
> That's valuable information. Can you please provide a boot log of one of
> those with an additional "apic=verbose" on the command line ?

Attached is the dmesg output from the 2.6.23-rc6 kernel with the patchset:

http://tglx.de/projects/hrtimers/2.6.23-rc4/patch-2.6.23-rc4-hrt1.patches.tar.bz2

applied.  I also have the 2.6.23-rc6-mm1 dmesg output ready, but there's some
-mm-specific noise in it.  Please let me know if you want it, though.

Greetings,
Rafael