https://bugzilla.novell.com/show_bug.cgi?id=416921
User trenn@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=416921#c39
Thomas Renninger changed:
What |Removed |Added
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Status|ASSIGNED |NEEDINFO
CC| |EB34307@lenovo.com,
| |jl01084@lenovo.com
Info Provider| |psankar@novell.com
--- Comment #39 from Thomas Renninger 2009-01-31 14:33:58 MST ---
Sorry for the long delay.
I hope you can still access the machine?
Thanks to your debug output from comment #29, one can see that:
- GPE 27 is triggered (probably the AC General Purpose Event)
and the ACPI function _Q27 is executed.
- There the function UMCS with a value of 12 is invoked which triggers a
System Management Interrupt (function is called SMI) and the machine enters
SMM (System Management Mode) and executes BIOS code. This happens behind
the OS back.
- The next function invoked is a simple Sleep, which is probably to wait for
the BIOS code to finish execution
Now it hangs.
So I very much expect:
- there is a bug in the BIOS code, plus:
- We might do something different (HW setup? ACPI?) compared to Windows which
triggers this bug. It might be that this also happens (on specific
conditions?) on Windows.
Sankar (and only Sankar as this code fits his BIOS, everyone else who wants to
do this test has to upload acpidump of his machine), can you please follow the
steps I describe with the attachment upload and try out whether this
workarounds the bug and everything is fine.
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