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Date: Wed, 12 Apr 2000 15:42:46 -0700 (PDT)
From: jacobsm@gate.net
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To: freebsd-gnats-submit@FreeBSD.org
Subject: Fatal Trap 12. Page fault while in kernel mode
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>Number:         17961
>Category:       kern
>Synopsis:       Fatal Trap 12. Page fault while in kernel mode
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Apr 12 15:50:01 PDT 2000
>Closed-Date:    Sat Aug 28 16:53:19 GMT 2004
>Last-Modified:  Sat Aug 28 16:53:19 GMT 2004
>Originator:     Mark Jacobs
>Release:        4.0 Stable
>Organization:
NA
>Environment:
FreeBSD primary.jacobs.org 4.0-STABLE FreeBSD 4.0-STABLE #0 Wed Apr 12 17:20:32
EDT 2000          root@primary.jacobsm.org;/usr/src/sys/compile/MAIN   i386

>Description:
Running coldsync 1.1.7 with Handspring Visor causes Fatal Trap 12 and
system reboots.
 
Kernel debug shows pagefault in /dev/usb/ugen.c:1216
   switch (sce->edesc->bmAttributes & US_XFERTYPE) {

print s
$1 = 0
print sce
$2 = (struct ugen_endpoint *) 0x4008c840
print sce->edesc
Cannot access memory at address 0x4008c844


>How-To-Repeat:
Attach Visor Cradle to USB port, press hotsync button.
Run coldsync -p /dev/ugen0
Press hotsync button again
kernel panic, reboot
>Fix:


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->n_hibma 
Responsible-Changed-By: sheldonh 
Responsible-Changed-When: Thu Apr 13 02:26:23 PDT 2000 
Responsible-Changed-Why:  
Over to Mr. USB. 
State-Changed-From-To: open->feedback 
State-Changed-By: linimon 
State-Changed-When: Fri Aug 27 22:24:47 GMT 2004 
State-Changed-Why:  
Is this still a problem with modern versions of FreeBSD? 


Responsible-Changed-From-To: n_hibma->freebsd-bugs 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Fri Aug 27 22:24:47 GMT 2004 
Responsible-Changed-Why:  
With permission of assignee, reset assignment. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=17961 
State-Changed-From-To: feedback->closed 
State-Changed-By: linimon 
State-Changed-When: Sat Aug 28 16:52:42 GMT 2004 
State-Changed-Why:  
Submitter no longer has this hardware.  Unless anyone else has 
this particular combination, he suggested the PR be closed. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=17961 
>Unformatted:
