Bjorn Helgaas wrote:
On Tuesday 24 July 2007 02:13:49 pm Jeff Garzik wrote:
Bjorn Helgaas wrote:
- Linux enumerates CPUs with the MADT; I think Windows uses the ACPI
namespace. Sometimes there are multiple MADTs, and sometimes Linux
uses the wrong one.
Color me skeptical. I think we would have bug reports if we were really
getting this wrong a lot of the time.
We do have bug reports, like http://bugzilla.kernel.org/show_bug.cgi?id=7465
Not very many, but enough that I'd like to get to the root cause.
You seem to be missing that ignoring BIOS is often a VERY GOOD thing,
that has served us well many many times in the past.
I can see that I'm not going to win this argument :-)
But I would like to find and fix the problem with Sebastien's machine,
because the patch does fix real problems with IRDA and I think the fix
for Sebastien is likely to fix other PNP issues.
Please go back and fix the original issue!
If you are having problems caused by double-probing, the fix is NOT to
remove one the probes. The fix is to ensure use of proper resource
reservation, and in some cases, add co-driver-awareness.
Your entire justification for the patch has not been proven, since you
demonstrably have not solved the original bug for which your patch was
intended to solve.
Jeff
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