Dear Len, 2.6.17.4 with "maxcpus=1" does not switch off the power (still bad). 2.6.23.9 does switch off the power (works fine). So I am not sure what should be the next step, perhaps a simple Debian bug report. Regards, Stephan On Thu, Dec 06, 2007 at 10:51:01PM -0500, Len Brown wrote: > On Thursday 06 December 2007 20:18, Stephan Seidl wrote: > > Hi, > > I would like to ask two questions, but firstly some history. > > Normally Debian Sarge is running with the kernel 2.6.14.3 with several > > patches and all works fine since Dec 2005. In Jul, 2006, I tried another > > kernel, 2.6.17.4, again with several patches, and again all worked fine > > with the exception of the fact that the machine did not switch off the > > power on `/sbin/shutdown -t5 -h -P now'. So I rejected the kernel > > 2.6.17.4 hoping that the problems would disappear by itself with the time. > > But, it did not. > > In Aug 2007, Debian 4.0 r1 appeared with a kernel 2.6.18..., still > > having the power down problem. Obviously, the problem has been introduced > > between 2.6.14.3 and 2.6.17.4 and I am the only who has it. The concerning > > board can be described by > > > > Award Medallion BIOS v6.0, An Energy Star Ally > > ASUS P4B ACPI BIOS Revision 1013 Beta 004 > > Award Plug and Play BIOS Extension v1.0A > > > > This week, to tackle the problem, I addionally applied the patches > > in the attachment to have the console messages somewhat longer on the screen. > > I got the same output with the two kernels, 2.6.14.3 and 2.6.17.4, namely > > > > Power down. > > acpi_power_off called > > hwsleep-0284 [01] enter_sleep_state : Entering sleep state [S5] > > > > whereat the line numer 0284 changed to 0283 for 2.6.17.4. > > What in fact happens after the above has been seen for 20 seconds is that > > the same machine switches off in case of 2.6.14.3, and wrongly reboots in > > case of 2.6.17.4. Now the questions, firstly, > > is that a kernel bug ? From my point of view, yes, it seems to be one. > > Secondly, if I would more or less stupidly put the debugging into execution, > > is there anyone who could guide me, because in the ACPI kernel environment, > > yes, it is a bug. > please try linux-2.6.23.stable and see if it still resets on poweroff there. > > see if there is any difference when you boot with "maxcpus=1". > > cheers, > -Len > - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
