Hello,

	I have a machine that routinely locks up.  This appears to happen 
during periods of high disk activity.  Alt-SysRq-[t|b] will not do 
anything.  As the Marvell SATA drivers are "experimental" I thought that 
this was possibly a contributing factor.  However, when the SATA card 
was replaced with two SiI 3214 based cards the lockups seemed to happen 
more often.

	I've tried with and without Hyperthreading as well as compiling the 
kernel with and without SMT.  Booting without APIC doesn't help either.

	General specs:  P4 3.0Ghz, 1Gb DDR400, 8x SATA drives on one Highpoint 
1820 card.  (other Marvell chipset device is onboard SATA but is not 
used).

	Please let me know if there is anything I can do to provide more 
helpful information.

	I'd prefer to find a solution using the Silicon Image 3214 chipset. 
 From what I've read, they support the development process very well and 
that makes me want to use their equipment.

lspci:
00:00.0 Host bridge: Intel Corporation 82875P/E7210 Memory Controller 
Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82875P Processor to AGP Controller 
(rev 02)
00:03.0 PCI bridge: Intel Corporation 82875P/E7210 Processor to PCI to 
CSA Bridge (rev 02)
00:1c.0 PCI bridge: Intel Corporation 6300ESB 64-bit PCI-X Bridge (rev 02)
00:1d.0 USB Controller: Intel Corporation 6300ESB USB Universal Host 
Controller (rev 02)
00:1d.1 USB Controller: Intel Corporation 6300ESB USB Universal Host 
Controller (rev 02)
00:1d.4 System peripheral: Intel Corporation 6300ESB Watchdog Timer (rev 02)
00:1d.5 PIC: Intel Corporation 6300ESB I/O Advanced Programmable 
Interrupt Controller (rev 02)
00:1d.7 USB Controller: Intel Corporation 6300ESB USB2 Enhanced Host 
Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 0a)
00:1f.0 ISA bridge: Intel Corporation 6300ESB LPC Interface Controller 
(rev 02)
00:1f.1 IDE interface: Intel Corporation 6300ESB PATA Storage Controller 
(rev 02)
00:1f.3 SMBus: Intel Corporation 6300ESB SMBus Controller (rev 02)
02:01.0 Ethernet controller: Intel Corporation 82547GI Gigabit Ethernet 
Controller
03:01.0 SCSI storage controller: Marvell Technology Group Ltd. 
MV88SX5081 8-port SATA I PCI-X Controller (rev 03)
03:04.0 SCSI storage controller: Marvell Technology Group Ltd. 
MV88SX5041 4-port SATA I PCI-X Controller (rev 03)
04:01.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 02)
04:09.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
04:0a.0 Ethernet controller: Intel Corporation 82541GI/PI Gigabit 
Ethernet Controller