i386/65954: Sil0680 panic (5.2.1-p5)

[Lewis Thompson]

>Number:         65954
>Category:       i386
>Synopsis:       Sil0680 panic (5.2.1-p5)
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Apr 25 04:30:14 PDT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Lewis Thompson
>Release:        FreeBSD 5.2.1-RELEASE-p5 i386
>Organization:
>Environment:
System: FreeBSD majic.fajita.org 5.2.1-RELEASE-p5 FreeBSD 5.2.1-RELEASE-p5 #4: Thu Apr 22 21:03:00 BST 2004 lewiz at amnesia.fajita.org:/usr/src/sys/i386/compile/AMNESIA i386


	
>Description:
Booting with a Sil0680 RAID controller (with or without disks attached)
causes a panic on 5.2.1-p5 (both a custom kernel (with firewalling
compiled in) and GENERIC): (below is a type-up)

atapci1: <SiL 0680 UDMA 133 controller>
port 0xcc00-0xcc0f,0xd000-0xd003,0xd400-0xd407, 0xd800-0xd803,
0xdc00-0xdc07 mem 0xcfffbf00-0xcfffbfff irq 5 at device 9.0 on pic0
atapci1: [MPSAFE]

Fatal trap 12: page fault while in kernel mode
cpuid = 0, apic id = 00

fault virtual address = 0xd12f8000
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc04d2627
stack pointer = 0x10:0xc219a0
frame pointer = 0x10:0xc219ac
code segment = base 0x0, limit 0xfffff, type = 0x1b
             = DPL 0, pres1, def32 1, grain 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
trap number = 12
cpuid = 0;

Interestingly I can boot 4.9-rc4 (from the CD) and 5.1-RELEASE (again
from the CD) without any problems.  I will test booting from a
5.2.1-RELEASE CD soon (I am currently distanced from the machine).
>How-To-Repeat:
	Boot a GENERIC 5.2.1-p5 kernel with a Silicon Image 0680 RAID controller.
>Fix:

	


>Release-Note:
>Audit-Trail:
>Unformatted: