http://bugzilla.kernel.org/show_bug.cgi?id=11953
Summary: Most current Asus m3n laptop bios version causes major
slowdown and crash
Product: ACPI
Version: 2.5
KernelVersion: 2.6.27.4
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: BIOS
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Latest working kernel version:2.6.27.4
Earliest failing kernel version:2.6.27.4
Distribution:Mandriva, Arch Linux
Hardware Environment:Asus m3n Laptop Model
Software Environment:i686
Problem Description: The system boots very slowly and then crashes after a bios
upgrade.
With the old bios version I need to use nolapic to boot at all.
But the system ran fine using the old bios and no lapic.
Using nolapic seems to make no difference with the new bios installed.
With the new bios version installed, The boot process crawls and so does the
user land stuff that starts after the kernel has finished.
Also udev hangs when highmem (4gb) is compiled into the kernel.
Steps to reproduce: Boot a kernel on an Asus m3n laptop flashed with most
recent bios version (m3n0207a.rom available from the Asus website,) Using a
mainline Linux kernel with the following compiled in to it.
High mem (4gb)
Local APIC Support on Uniprocessors
Symmetric multiprocessing Support (SMP)
Please note: This machine is a uniprocessor machine using a pentium-m
processor.
I know that for sure I shouldn't use SMP support in the kernel but should it
crash?
Everything else, Is it safe assume I should not experience issue in an ideal
world?
I have completed a large amount of kernel builds to find out what has caused
this bug for this machine and it is definately those three listed parts.
Discovered by process of elimination.
Without the above three things enabled, The kernel works perfectly, Without any
noticeable issue.
I am attaching some dmesg logs from the original build that failed here.
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