Messages in this thread | | | Date | Sun, 20 Jul 2008 22:11:46 -0700 | From | Samuel Sieb <> | Subject | kernel won't boot on a Cyrix MediaGXm (Geode ) |
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I have a computer here with a CPU that the BIOS identifies as: Cyrix MediaGXm/Cx5530 Unicorn Revision 1.19.3B
kernel 2.6.14 identifies it as: vendor_id : Geode by NSC cpu family : 5 model : 9 model name : Geode(TM) Integrated Processor by National Semi stepping : 1
I can't boot any kernel later than 2.6.22 on it. Anything later either hangs or gives random kernel panics while booting. I tracked down the problem to a specific commit:
commit f25f64ed5bd3c2932493681bdfdb483ea707da0a Author: Juergen Beisert <juergen@kreuzholzen.de> Date: Sun Jul 22 11:12:38 2007 +0200
x86: Replace NSC/Cyrix specific chipset access macros by inlined functions.
Reversing the patch (compensating for kernel changes) let me boot a 2.6.25 kernel. I realize the patch is supposed to fix something that didn't work right, but I didn't have a problem before and I do now. :-)
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