Qustion about being "Giant-locked"

Kris Kennaway kris at obsecurity.org
Wed Apr 7 01:17:13 PDT 2004

On Tue, Apr 06, 2004 at 11:49:20AM +0400, Artem Koutchine wrote:
> >> While booting i see many drivers marked
> >> as [Giant-locked].
> >> Is being Giant-locked good or bad what are the
> >> implications?
> >It's not good if you have a computer with multiple processors.
> Well, i do have dual xeon with HT (4 logical CPUs). Is there
> any way to fight giant-locked drivers or i just have to wait
> until the driver will be rewritten w/o Giant? Or there are
> some kernel options to disable Giant lock in the drivers?

"Giant lock" isn't a feature that can be enabled or disabled, it
indicates that the driver code is not yet ready to be run without
Giant.  Locking work is a major focus of development in the 5.x
branch, but as you can see it's not finished yet.

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