5.2.1-RC panic at boot

Hi,

 The install panic'ed today when I tried to install it on a new machine.
 Here is the hardware description:

   Motherboard ECS 
   VIA KT8235
   Pentium 4 2.60GHz
   256MB DDR
   20GB Samsung disk

 FreeBSD version tried:  5.2.1-RC (CD boot)

 It panics when I start the default mode (ACPI off doesn't make a
 diference):

 GEOM: create disk ad0 dp=0xc3105d60

 Fatal trap 18: integer divide fault while in kernel mode
 cpuid = 0; apic id = 00
 instruction pointer		= 0x8:0xc07ecadb
 stack pointer			= 0x10:0xc1021c30
 frame pointer			= 0x10:0xc1021cb0
 code segment			= base 0x0, limit 0xfffff, type 0x1b
 				= DPL 0, pres 1, def 32 1, gran 1
 processor eflags		= interrupt enabled, resume, IOPL = 0
 current process		= 0 (swapper)
 trap number			= 18
 panic: integer divide fault
 cpuid = 0;

 In safe mode it boots and starts sysinstall. The first install
 (minimal) gave me the error "cg 0 bad magic number" when it tries to
 newfs the partitions. A second run, this time choosing 'All', completed
 fine but refused to boot even in safe mode or with ACPI disabled.

 --
 Giovanni P. Tirloni <gpt at tirloni.org>
 Fingerprint: 8C3F BEC5 79BD 3E9B EDB8  72F4 16E8 BA5E D031 5C26