Re: MTRR fix

Gerd Knorr (kraxel@goldbach.isdn.cs.tu-berlin.de)
Tue, 1 Sep 1998 22:34:16 +0200


Linus Torvalds <torvalds@transmeta.com> writes:

>On Tue, 1 Sep 1998, Richard Gooch wrote:
>>
>> Hi, Linus. I've appended a patch for 2.1.119 which fixes a problem
>> reported by Tom Eastep (hard lockups when mtrr_add() is called in the
>> console patch with SMP kernel). The problem was that IPIs were being
>> used to distribute the MTRR changes, but smp_begin() had not yet been
>> called. So now I queue the calls to mtrr_add() until smp_begin() has
>> been called.

>I really think that it's the console patch that is broken. If it plays
>with the MTRR's it should be part of the later "real" device
>initialization (ie chrdev_init()) rather than called from console_init()
>which happens early.

vesafb initialisation _is_ part of chrdev_init().

Gerd

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