netbsd6 on newer intel

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

Hello,
booting NetBSD on a new supermicro server with an E3-1270 v3
(NetBSD 6.1.2, but I got the same with the latest netbsd-6 autobuild):
acpicpu0 at cpu0: ACPI CPU
acpicpu0: failed to evaluate _TSS: AE_LIMIT
uvm_fault(0xffffffff80e17b20, 0x0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff80120ce2 cs 8 rflags 10246 cr2  138 cpl 8 rsp 
ffffffff80fc2c90
kernel: page fault trap, code=0
Stopped in pid 0.1 (system) at  netbsd:acpicpu_attach+0x53a:    movl    138(%rax
),%edx
db{0}> tr
acpicpu_attach() at netbsd:acpicpu_attach+0x53a
config_attach_loc() at netbsd:config_attach_loc+0x1bb
cpu_rescan() at netbsd:cpu_rescan+0xbd
config_process_deferred() at netbsd:config_process_deferred+0x54
config_attach_loc() at netbsd:config_attach_loc+0x1e2
cpu_configure() at netbsd:cpu_configure+0x26
main() at netbsd:main+0x2a6

With -current, acpicpu* complains about ACPI errors:
acpicpu0 at cpu0: ACPI CPU
acpicpu0: failed to evaluate _TSS: AE_BAD_DECIMAL_CONSTANT
coretemp0 at cpu0: thermal sensor, 1 C resolution

but at last it boots.
Can we please get the fix identified and pulled up to netbsd-6 and netbsd-5 ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--