Re: [CFT] Serial double initialisation

From: Zwane Mwaikambo (zwane@holomorphy.com)
Date: Sat Nov 30 2002 - 19:45:28 EST

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In reply to: Russell King: "[CFT] Serial double initialisation"
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On Sat, 30 Nov 2002, Russell King wrote:

> A while ago, Alan reported to me a double-initialisation bug between the
> ISA init and PNP initialisation of serial ports.
>
> Since then, Alan integrated a patch I sent him into -ac, and as yet I
> haven't heard any feedback. Since I don't have the PNP hardware to be
> able to test this, I'm not putting it into Linus' tree until I hear some
> success.
>
> So, if people are using 2.5.50 with PNP support enabled, and if you are
> seeing two "ttyS0" lines during the kernel boot messages, please apply
> this patch and confirm to me that it correctly reports one ttyS0 message.

Thanks for checking this out, the double init only comes when you have
CONFIG_PNPBIOS enabled, but CONFIG_ISAPNP alone is fine. I tested the
patch with both and it does indeed fix the problem.

Cheers,
Zwane

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function.linuxpower.ca
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