Re: [Alsa-user] Alsa kernel options -- solved

[Chris Radlinski]

After some tedious trial-and-error testing, the offending kernel option 
was:  CONFIG_HIGHMEM4G.  I have 1GB of RAM in my machine.  By unsetting 
CONFIG_HIGHMEM4G, Alsa works but I can only use 896 MB.

Chris

Clemens Ladisch wrote:
Chris Radlinski wrote:
 

If I use one of Slackware's prebuilt kernels, alsa runs just
great.  When I build a custom kernel, all of the alsa modules load
just fine but I get "Input/output error" when trying to use aplay.
From scanning the list archives, I surmise this indicates some
kind of interrupt problem.
   

yes.
 

As everything runs just great with Slack's default kernel (barei),
there must be something wrong with the configuration of my new
kernel.
   

This usually happens when ACPI and/or the local APIC is enabled.
 

I've attached the kernel config.
   

... but this is not the case here.  Try enabling ACPI.
What are the differences between the default config and this one?
Regards,
Clemens

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