svn commit: r233249 - head/sys/amd64/acpica
Jung-uk Kim
jkim at FreeBSD.org
Wed Mar 21 19:02:22 UTC 2012
On Wednesday 21 March 2012 01:57 pm, Andriy Gapon wrote:
> on 21/03/2012 19:41 Jung-uk Kim said the following:
> > I am well aware of the problem. In fact, that's why I had to
> > merge ACPICA 20120320 rather quickly, which added a new flag to
> > not execute _GTS method. Both _GTS and _BFS are turned off by
> > default. You can control them with a new tunable
> > "debug.acpi.sleep_flags" if you want.
>
> But the bug still has to be fixed, right?
> Even if it takes a non-default sysctl value to give the bug a
> chance.
Ideally, yes. However, I am not so sure if we can call it a "bug"
because AcpiEnterSleepState() must be called with interrupt disabled
and there is no way to change that API without breaking other OSes.
We can only work around it locally or persuade upstream to find a
better way to do this in ACPICA itself. Either way, it will be
pretty hackish. :-(
Jung-uk Kim
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