On Fri, Sep 28, 2007 at 06:11:16PM -0700, H. Peter Anvin wrote:
quoted text
> Wolfgang Erig wrote:
> > Hi,
> > 
> > the latest kernel does not power off my old laptop.
> > 
> > 2.6.22 succeeded
> > 2.6.23-rc8 failed
> > 
> > $ git bisect good 
> > Bisecting: 0 revisions left to test after this 
> > [626073132b381684c4983e0d911e9aceb32e2cbc] Assembly header and main routine for new x86 setup code 
> > 
> > Which more info is needed?
> > 
> 
> A description of the system, your .config file, kernel messages (old and
> new).

Laptop (about 10 years old, runs perfectly with 2.6.22) from
Siemens Nixdorf, Mobile 710, Pentium MMX 166
$ lspci
00:00.0 Host bridge: Intel Corporation 430TX - 82439TX MTXC (rev 01)
00:01.0 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 01)
00:01.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
00:01.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01)
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01)
00:06.0 VGA compatible controller: Chips and Technologies F65554 (rev c2)
00:14.0 CardBus bridge: Cirrus Logic PD 6832 PCMCIA/CardBus Ctrlr (rev c1)
00:14.1 CardBus bridge: Cirrus Logic PD 6832 PCMCIA/CardBus Ctrlr (rev c1)

The last kernel messages written from the screen:

----- good case -----
Deactivating swap...done.
Will now halt.
Shutdown: hda
Power down.
	(power off)
I'm not absolutely shure about the messages because it runs very fast.

----- bad case -----
Deactivating swap...done.
Will now halt.
Shutdown: hda
System halted.
_	(blinking cursor)

.config is attached.

Thankyou,
Wolfgang