ubuntu-x-swat team mailing list archive

[Bjorn Helgaas <bjorn.helgaas@xxxxxx>]

The normal method is to assume that all addresses to go the PCI bus
unless they're claimed by RAM or other builtin devices first.  That's
certainly not true when we have more than one PCI host bridge, and
apparently it's not true even on some single-bridge machines like this
A355.

_CRS is the way BIOS tells the OS about the actual routing, and Windows
uses it, so in most respects, I think it's definitely better.  I'm
working on making it the default for all new machines:
http://lkml.org/lkml/2010/2/17/260

I think this will fix the problem reported here (and Peter Haight
confirmed this with an older version of my patches:
http://bugzilla.kernel.org/show_bug.cgi?id=14183), but I would like a
better understanding of what's happening on these machines.  If anybody
can boot an upstream kernel (2.6.33-rc1 or later) and attach the dmesg
log, that would be very helpful.  That will show what _CRS is reporting,
and hopefully we'll see Linux doing something wrong because it is still
ignoring it.

** Bug watch added: Linux Kernel Bug Tracker #14183
   http://bugzilla.kernel.org/show_bug.cgi?id=14183

-- 
[HD 3650] Startup failure "Idle timed out, resetting engine..."
https://bugs.launchpad.net/bugs/341681
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