On Thu, 15 Sep 2011, John D. Baker wrote:
I reverted sources to 201108291448Z and then reverted only "sys/dev/pci/pci.c" to r1.141 (the revision prior to the date/time shown above). ... The changes from r1.141 to r1.142 of "sys/dev/pci/pci.c" look innocuous, but for some reason they tickle some peculiarity of this machine that prompts a panic. Now that it appears to be located, how to further identify and then fix or at least work around it...
Perhaps boot into the kernel debugger and set module_verbose_on to a non-zero value? There might be some additional useful info in the verbose output.
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