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Bug#576918: linux-image-2.6-686: Keyboard disabled: atkbd.c: Spurious ACK on isa0060/serio0 ...



On Thu, 2010-04-08 at 09:16 +0100, ael wrote:
> Package: linux-image-2.6-686
> Version: 2.6.32+25
> Severity: important
> 
> With Linux 2.6.32-trunk-686 & Linux 2.6.32-3-686, at least, on this Aspire One
> Netbook, the system frequently boots into a state in which the keyboard does
> not respond. The mouse (Synaptics touchpad) is still active, and as far as I can
> tell everything else is working. My only recourse is to hit the reset button.
> 
> So this is nondeterministic, and so probably some sort of race? I *think* that 
> it happens more frequently if I happen to touch the ps/2 touchpad during boot, but
> it definitely does still happen when I keep my hands well away during boot.
> 
> Looking at /var/log/messages, this seem to be correlated with the
> following message:
> Apr  6 09:58:56 elf kernel: [    4.789882]
>    atkbd.c: Spurious ACK on isa0060/serio0. Some program might be trying access
>     hardware directly.
> 
> So far as I can tell, this sort of message only appears when the kb is disabled.
> Presumably, this interrupt is not really spurious, thus not serviced
> and the kb controller waits forever for the keystoke to be handled?? Just guessing :-(
[...]

Please report this upstream at <https://bugzilla.kernel.org> under
product 'Drivers', component 'Input Devices'.  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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