[ PCIC defaults to polling mode ]
> There are six million brands of laptop in the world. To be honest,
> this thread is basically the first one to say that there's something
> wrong. PAO3 has done this for some time, if I understand thigns
> correctly, and hasn't reported problems.
FWIW, I switched *from* polling mode to IRQ mode in FreeBSD 2.2.X (can't
remember) for two reasons:
1) suspend/resume works *much* more reliably. (However, I ended up
rewriting the suspend/resume code anyway).
2) Too many folks complained that polling didn't work reliably.
However, I believe the second was related to the fact that there were
races in the polling code (which came from PAO), such that polling was
*always* being done, regardless of whether or not the IRQ was being
used.
Finally, stating the 'PAO' has done it for some time is not (IMO) a
great argument. In the past, PAO has done lots of things incorrectly,
and that things worked at all was merely good luck.
Polling 'should' work in all cases, although suspend/resume may not work
reliably (races and such). If it doesn't work on Steve's laptop,
something is messed up with the PCIC probing/setup, since it should work
fine.
The biggest advantage for supporting 'polling by default' is the fact
that IRQ's are a precious commodity on newer hardware, and 'wasting' one
just for insertion/removal events seems a waste.
(Steve, on a whim, is PnP turned *OFF* in your BIOS?)
Nate
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-stable" in the body of the message
