i386/71144: FBSD5.3b2 doesn't boot on a Compaq Armada 7300

[Alexander Thomas]

>Number:         71144
>Category:       i386
>Synopsis:       FBSD5.3b2 doesn't boot on a Compaq Armada 7300
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 30 09:50:35 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Alexander Thomas
>Release:        FBSD5.3b2
>Organization:
Student
>Environment:
Not available (Kernel falls back to Debuger during the boot process).
>Description:
I got this durig the boot process:
---8<---
ad0: TIMEOUT - READ_DMA retrying (bla retries left) LBA=78140097
ATAPI_RESET time 2030us
[...]
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=78140097
ATAPI_RESET time 2040us
ATAPI_RESET time 2040us
ad0: FAILURE - READ_DMA timed out


Fatal trab 12: page fault while in kernel mode
cpuid = 0: apic id = 00
fault virtual address = 0xdeadc0de
fault code = supervisor read, page not present
instruction pointer = 0x8:0xdeadc0de
stack pointer = 0x10:0xc8298ca4
frame pointer = 0x10:0xc8298cb0
code segment = base 0x0, limit 0xfffff, type 0x1b
  = DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 5 (thread taskq)
[thread 100035]
Stopped at 0xdeadc0de: *** error reading from address deadc0de ***
db>
--->8---

My system is a Compaq Armada 7300 with an 150MHz Pentium MMX, 128MB Kingston minisd-edo-ram, 40GB Fujitsu HDD connected to the internal Triflex controller.
>How-To-Repeat:
Everytime, using the FBSD5.3b2 image got at 29th August from ftp1.de.freebsd.org. Also then enter "reset" in the debugers command line and booting FBSD5.2.1-CURRENT kernel. But never happend when doing a cold-reset (Switching off and on or eg.)
>Fix:
No solution found.
>Release-Note:
>Audit-Trail:
>Unformatted: