polling and twa coexistence problems under 5.4-PRE

[Eli Dart]

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Hi all,

We are having trouble getting a polling-enabled kernel to boot.  It
gets as far as listing the timecounter values, and then resets twa0
every couple of minutes forever.

The box is 2x3.2GHz Xeons, 4GB RAM, SuperMicro X6DH8-XG2 motherboard
with 2 integrated em interfaces, 2 x quad-port em cards, 3ware 9000
controller.  3ware probes thusly:

twa0: <3ware 9000 series Storage Controller> port 0x2000-0x20ff mem
0xdf800000-0
xdfffffff,0xdd200000-0xdd2000ff irq 28 at device 3.0 on pci2
twa0: 4 ports, Firmware FE9X 2.04.00.005, BIOS BE9X 2.03.01.047

I'm posting this here because everything works beautifully until we
turn on polling.  We're setting HZ=1000 and turning off SMP in the
polling kernel config.

Anyone have any experience with this?

Thanks,

		--eli
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