On Wed, 1 Aug 2007, Brett Davidson wrote:
[EMAIL PROTECTED] wrote:
On Wed, 1 Aug 2007, Brett Davidson wrote:
If there are patches/updates to this issue I would REALLY like to know
about them! :-)
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Brett Davidson
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I may be wrong, but USB support has always been giant-locked, and continues
to be giant-locked, at least until Hans work maybe gets integrated into
8-CURRENT after a major code review.
-Garrett
Thanks Garrett.
By the way, my colleague informed me incorrectly that USB and SMP support was
an issue. (Although I am keen for this to work!) :-)
Heh :).
From the latest source, the Kernel PAE conf file mentions that USB and PAE are
not known to play well together. This is my immediate concern.
Not sure if that's a problem. PAE is just an ugly ugly hack, but you probably
know that by now... should have gone with amd64 ;).
I presume giant-locking is one mutex that rules them all? As such, besides
being inefficient under load, how would running USB under this be a problem
with PAE?
Uhm, it's sorta like that. Many drivers are still using giant-locks, but
there's a lot of effort going into removing those giant locks for creating more
SMP'goodness :).
Cheers,
Brett.
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