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Bug#571761: linux-image-2.6.32-2-686: 2.6.32 required noapic on Acer Travelmate 430 where earlier kernels did not



On Sat, 2010-02-27 at 22:32 +0000, Ben Hutchings wrote:
> On Sat, 2010-02-27 at 20:21 +0000, David Goodenough wrote:
> > Package: linux-2.6
> > Version: 2.6.32-8
> > Severity: important
> > 
> > 
> > With kernels up to 2.6.26 this ancient machine did not require any special kernel boot options, but with 2.6.32 
> > I need to add noapic to the kernel command in grub.
> > 
> > If I do not add noapic the kernel gets as far as the pcmcia socket and gets through that completely, and then hangs
> > competely - nothing works.
> > 
> > Looking in the 2.6.26 kernel dmesg just after the initialisation of the pcmcia socket there were messages about 
> > ACPI derived interrupts.  So I thought trying noapic was worth trying noapic, and now 2.6.32 boots normally.
> 
> ACPI and APIC are two entirely different technologies, although they are
> both involved in interrupt routing.
> 
> > This suggests that something has changed in the APIC handling for the old chip in the 430, for the worse. Of course
> > now manual intervention is required to make this machine boot.
> 
> Please report this upstream at <http://bugzilla.debian.org> under
> product 'Platform Specific/Hardware', component 'i386'.  Attach the
> kernel logs for 2.6.32 with and without 'noapic' to the bug report.

Sorry, I don't know how I came up with that URL... please use the bug
tracker at <https://bugzilla.kernel.org>!  Then, let us know the bug
number so we can track it.

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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