[ltp] PNPBIOS oops at bootup

Ken Restivo linux-thinkpad@linux-thinkpad.org
Mon, 5 May 2003 15:01:18 -0700


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I pulled out Thomas Hood's pnpbios patch from the 2.4.18-ac3 kernel patch, creating my own little "pnpbios-only" patch. It applied and built: so far so good. 

Of course the simplest possible case (pnpbios-only patch) oopses at bootup :-(. I'm now tracking down a ksymoops to find out why.

Before I chase this rabbit too long:

	1) Is there, anywhere, a clean, normal, non-ac, pnpbios-only patch somewhere? I've got kernel 2.4.18 with the stock Woody patches, and that's what I want to stick with for the time being. So any working pnpbios patch against a stock 2.4.18 and/or Woody kernel would be great.

	2) Is there anything in the -ac patches that pnpbios is known to depend on? I looked at the code, it seems straightforward and pretty self-contained. But then, mucking about in BIOS registers, anything can happen. I notice that it loads VERY early in the boot process too: i think it was the third or fourth driver to load.

Alan Cox is quite a clever fellow, but I really don't want all the rest of the stuff in -ac patches. I run Debian anyway, not RedHat. And I don't want to enter the nightmare world of conflicting patches stomping on each other, which have nothing to do with what I want: pnpbios only.

My apologies if what I'm trying to do is difficult, impossible, or simply fetishistic. Any help would be appreciated. Thanks.

- -ken
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