[LinuxBIOS] [linux-usb-devel] [RFC][PATCH 0/2] x86_64 Early usb debug port support.

Yinghai Lu yinghai.lu at amd.com
Wed Dec 13 08:00:25 CET 2006

On 12/8/06, Eric W. Biederman <ebiederm at xmission.com> wrote:
> Your or I missed a bug fix/enhancement in there somewhere.

I found the problem. the __set_fixmap need to __va, so the entries
will be referred from PAGE_OFFSET.

solution will be
1. move enable_dbgp_console from setup_early_printk, and call it from
setup_arch after init_memory_mapping.
2. or make __set_fixmap can use __pa or pa()+__START_KERNEL_map in
addtion to _va.

please check attached updated patch that is your patch plus 1.

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