kern/126866: [isp] [panic] kernel panic on card initialization

[Paul A. Procacci]

The following reply was made to PR kern/126866; it has been noted by GNATS.

From: "Paul A. Procacci" <pprocacci at datapipe.com>
To: bug-followup at FreeBSD.org, westr at connection.ca
Cc:  
Subject: Re: kern/126866: [isp] [panic] kernel panic on card initialization
Date: Thu, 25 Sep 2008 03:56:10 -0500

 Hello,
 
 I am having the same exact problem you were having using the same 
 device.  I started receiving this error on FBSD7-RELEASE and thought it 
 was specific to that version.  Naturally I upgraded to FBSD7-Stable as 
 of today (9/25/2008), but still haven't been able to resolve this error, 
 even with the patch presented here.  Like you had mentioned on 
 freebsd-scsi, the machine panic's roughly 50% of the time during boot.
 
 Here is my `trap` with the patch applied.  Due note that this is typed 
 by hand as the kvm I'm on doesn't allow for copy and paste:
 
 Fatal trap 12: page fault while in kernel mode
 cpuid = 0; apic id = 00
 fault virtual address = 0x20
 fault code = supervisor read data, page not present
 instruction pointer = 0x8 :0xffffffff80187350
 stack pointer = 0x10 :ffffffffac499810
 frame pointer = 0x10 : ffffff0003782320
 code segment = base 0x0, limit 0xfffff, type 0x1b
                       =     DPL 0, pres 1, long 1, def32, 0, ran 1
 processor eflags = interrupt enabled, resume, IOPL = 0
 current process = 5 (thread taskq)
 trap number = 12
 panic: page fault
 cpuid = 0
 Uptime 5s
 
 ----------------------------------------------------------------
 I wish I had further information to give.  The information I provided 
 almost certainly pales in comparison to the submitters, but I believe it 
 relevant given the symptoms / deice are identical.