[ipxe-devel] Coreboot+Seabios with PMM + iPXE hangs

Michael Brown mbrown at fensystems.co.uk
Sat Feb 12 02:39:07 UTC 2011


On Saturday 12 Feb 2011 01:38:41 Peter Bannis wrote:
> iPXE hangs in a PMM call when using seabios with PMM enabled.
> 
> How can I enable DEBUG messages for PMM calls in ipxe?

There are no debug messages available at that point, beyond what already gets 
printed to the screen.  Your best bet is probably to run inside bochs, add a 
magic breakpoint ("xchgw %bx, %bx") at the start of get_pmm() in romprefix.S, 
and single-step through that routine.

Michael



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