As a part of tracking down a performance issue, I tried building a custom kernel (with just IPFW, DUMMYNET added, NMBCLUSTERS, commenting out MATH_EMULATE, INET6, I386, I486). The system is currently running a kernel from a similar machine with the same settings. The machine does run on this kernel: 4.9-RELEASE FreeBSD 4.9-RELEASE #8, with the above options, but I have not been able to compile a 4.9-RELEASE #2 (which is the source tree on the machine) kernel that has an identical config file.
So, when it builds itself from -RELEASE sources, it hangs at:
"pmap_mapdev: Couldn't alloc kernel virtual memory" I couldn't find a reference to anything recent. Nothing non-default (from a GENERIC kernel) with respect to ACPI has been touched. I see a reference to -CURRENT from 9/03, but that's it.
Should I turn off power management? Is there a way to prevent ACPI support from being loaded at the kernel level?
Should I just cvsup to 4.9-RELENG and try it again?
It would be very nice if this were some how related to my network performance problem, but that might be too much to hope for. :)
Thanks in advance,
DJ
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