Latest working kernel version:?
Earliest failing kernel version:?
Distribution: UBUNTU 8.04
Hardware Environment: Laptop Clevo M720S
Kernel freeze without nosmp option
Steps to reproduce: boot with live CD
Created attachment 16989 [details]
i put some trace in the DSDT and found that kernel was freezing when calling \_SB.PCI0.LPC.EC.ECOK .
but what does it have to do with SMP ?
Will you please attach the output of acpidump?
Will you please try the boot option of "noapic" and see whether the system can be booted?
It will be great if you can capture the picture of the screen and attach it when the system freezes.
Created attachment 17000 [details]
Created attachment 17004 [details]
no options --> freeze
Created attachment 17005 [details]
noapic --> freeze
Created attachment 17006 [details]
dmesg with option nosmp (1 cpu detected)
Created attachment 17007 [details]
dmesg with option nmi_watchdog=1 (2 cpu detected)
Created attachment 17008 [details]
crash with option nmi_watchdog=2
could you please try boot option "processor.max_cstate=1"?
processor.max_cstate=1 had no effect (same screen when no option)
Thanks for your support.
what can i do now ?
Will you please try the boot option of "noapic nmi_watchdog=0 maxcpus=1" ?
Will you please try the boot option of "nolapic_timer maxcpus=1" and see whether the system can be booted?
Created attachment 17092 [details]
dmesg with nmi_watchdog=0 noapic maxcpus=1
Created attachment 17093 [details]
dmesg with nolapic_timer maxcpus=1
Created attachment 17094 [details]
dmesg with nolapic_timer
Thanks for the info.
It seems that the system can be booted normally after adding the boot option of "nolapic_timer" or "nmi_watchdog=0".
Will you please try the boot option of "idle=poll" and see whether the system can be booted? If it hangs, please capture the picture of the screen.
Will you please try the boot option of "nmi_watchdog=0"? It is unnecessary to add the option of "nolapic_timer maxcpus=1".
How about disabling acpi with acpi=off?
Created attachment 17100 [details]
dmesg with idle=poll
nmi_watchdog=0 can not boot (see the no option -> freeze picture)
acpi=off can not boot : freeze after enable TIMERS
Created attachment 17129 [details]
here is the screen when using acpi=off
Will you please try the boot option of "idle=nomwait" on the latest kernel(For example: 2.6.27-rc2) and see whether the problem still exists?
As the processor driver is compiled as the module, the boot option of "processor.max_cstate=1" will have no effect. Will you please compile it as built-in module and try the boot option of "processor.max_cstate=1" again?
Please attach the following output:
acpidump --addr 0x77D961D2 --length 0x26f -o CPU0IST
acpidump --addr 0x77D96441 --length 0x1EB -o cpu1ist
acpidump --addr 0x77D95C35 --length 0x518 -o cpu0cst
acpidump --addr 0x77D9614D --length 0x85 -o cpu1cst
Created attachment 17251 [details]
dmesg of last kernel
Testing With the kernel 2.6.27 RC3
idle=nomwait did not work
Created attachment 17252 [details]
> processor.max_cstate=1 works
thanks, please also try processor.max_cstate=2?
nolapic_timer is also a workaround, this is likely
related to the C3 lapic timer workaround.
Created attachment 17523 [details]
Hi , processor.max_cstate=2 WORKS
Will you please try the latest vanila kernel(2.6.27-rc5) and see whether the problem still exists?
Don't add the boot option of "nolapic_timer" or "processor.max_cstate".
does the freeze occur in text mode (eg, not in X)?
yes in text mode during boot
but something has change since 2.6.24 .
it's doing more things before freeze ...
i don't see ACPI exceptions anymore .
i also tried Mandriva 2009 RC1 , it freeze when starting udev
do you want screenshots ?
can you try latest kernel? there are a lot of time/c-state related changes recently.
no response from the bug reporter.
please re-open it if the problem still exists in the latest kernel release.
Problem still Exists on an Nexoc E622, whats an Clevo or Mitac...
No start available until i gave nolapic...but after that, one processor and no Powermanagement, sorry for the bad english...Iam not experienced in all of that error things, but tell me what to do, because the book isnt useable !