mpt0: personality mpt_core attached but would not enable (6)

[Rong-en Fan]

We have an IBM x3550 with a SCSI card Tekram DC-390U4W.
However, with latest 6-STABLE and 7-STABLE, mpt(4) failed to attach:

mpt0: <LSILogic 1030 Ultra4 Adapter> port 0x5000-0x50ff mem
0xc6ff0000-0xc6ffffff,0xc6fe0000-0xc6feffff irq 24 at device 1.0 on
pci20
mpt0: Reserved 0x100 bytes for rid 0x10 type 4 at 0x5000
mpt0: Reserved 0x10000 bytes for rid 0x14 type 3 at 0xc6ff0000
ioapic1: routing intpin 0 (PCI IRQ 24) to vector 49
mpt0: [GIANT-LOCKED]
mpt0: MPI Version=1.2.14.0
mpt0: Capabilities: ( RAID-1E RAID-1 SAFTE )
mpt0: 0 Active Volumes (1 Max)
mpt0: 0 Hidden Drive Members (6 Max)
mpt0: mpt_wait_req(6) timed out
mpt0: port 0 enable timed out
mpt0: failed to enable port 0
mpt0: personality mpt_core attached but would not enable (6)

These are from 6-STABLE.

Full dmesg and pciconf:

http://nopa.csie.org/23810
http://nopa.csie.org/fd78e

BTW, we also tried with LSI 20320R, the same happens. And
running Debian on the same box, the scsi works well.

Any ideas?

Regards,
Rong-En Fan