On Sun, 16 Dec 2007, [email protected] wrote:
- it seems there are buggy Bios implementations out there which have problems with EDD
- your favourite distro may have set CONFIG_EDD=y|m , so EDD probe is on by default quite often nowadays.
- setting "edd=off" when you get that hang on boot is _not_ obvious.
It does not look like this issue is common - googling for "Linux EDD Boot
hang" does not bring up relevant and recent results - in fact this post of
yours comes on top. Further more there does not seem to be problems with
newer BIOSes so we would be irritating lot many users needlessly.
Adding 3 printks for each such obscure problem would make it even more
complex to parse and make sense of the boot log - I, for example, already
dislike the mostly-useless-to-end-user stuff it spews on a normal boot.
If there are known chipsets / BIOSes that have this problem - applying
quirks - something like this quirk for pmtmr [1]- (if they work this
early) or even special casing them with forced edd=off may be the right and more useful thing to do.
[1] http://www.webservertalk.com/archive242-2006-3-1447442.html
Parag
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