Title: UEFI Compatibility Issues in Fedora 10
jonathan barkelew wrote:
The second issue is far more pressing, and much more difficult to
solve. The linux kernel will behave
incorrectly if more than 400k of runtime memory is declared by system
firmware. The kernel attempts
to map all UEFI runtime memory into the kernel fixmap table, and any
requests to map more than 400k
are silently ignored. If this memory is accessed later in the boot
process (after transition to virtual
mode), the kernel will panic. It is my understanding that this
mechanism was designed to enable kexec
functionality, but this mechanism is UEFI non-compliant. If Fedora is
ever to be reliably booted on
UEFI systems, this issue must be addressed.
BTW, I can also forward you the patches for this if you need to use an
older kernel for some reason. Let me know...
Brian
|
--
fedora-devel-list mailing list
fedora-devel-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/fedora-devel-list
