I'm seeing a fairly strange hang on my Foxconn G9657MA with firmware 50.
Upon bootup I get a hang while working with ACPI. With ACPI debug
statements turned on, it hangs after (Kernel 2.6.21.5 stock):
[...]
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
Freeing SMP alternatives: 12k freed
ACPI: Core revision 20070126
Parsing all Control Methods:
Table [DSDT](id 0001) - 694 Objects with 62 Devices 187 Methods 43 Regions
tbxface-0587 [02] tb_load_namespace : ACPI Tables successfully acquired
[hang occurs here]
The kicker is these few observations:
1) Booting off the Ubuntu 7.04 CD seems to always works fine.
2) Booting off the Windows XP CD seems to always works fine.
3) Booting with ACPI=OFF always works (but then my PATA port fails to work)
4) the trick: If I let it boot with ACPI=OFF past the timeouts while
detecting the above PATA port, and then immediately control-alt-delete
reboot the machine, it will once boot fine without ACPI=OFF, just that
one time!
When I did get the machine to come up, I was able to grab and decompile
the DSDT. There were a couple of errors in it. However should a bad DSDT
cause a hang at this point? I believe I've seen some sillyness such as
"Store(Local0, Local0)" and getting "use before assignment" of Local0,
but I don't have the DSDT handy right.
Any other hints I could try to get to the bottom of this issue? Let me
know if there's some more data I can collect.
Thanks,
-bc
Reference:
If the machine doesn't hang, the next two lines displayed in dmesg are:
evxfevnt-0091 [02] enable : Transition to ACPI mode successful
CPU0: Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz stepping 06
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