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Date: Mon, 12 Dec 2005 16:29:12 GMT
From: _beastie_ <boxforsubscribe@mail.ru>
To: freebsd-gnats-submit@FreeBSD.org
Subject: kernel panic on startx command
X-Send-Pr-Version: www-2.3

>Number:         90287
>Category:       kern
>Synopsis:       kernel panic on startx command
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Dec 12 16:30:11 GMT 2005
>Closed-Date:    Mon Dec 12 18:29:33 GMT 2005
>Last-Modified:  Mon Dec 12 21:40:01 GMT 2005
>Originator:     _beastie_
>Release:        FreeBSD 6.0-RELEASE
>Organization:
homenet.az
>Environment:
FreeBSD neverland.homenet.az 6.0-RELEASE FreeBSD 6.0-RELEASE #1: Sat Dec 10 12:38:33 AZT 2005
root@neverland.homenet.az:/usr/obj/usr/src/sys/CUSTOM  i386              
>Description:
kernel panic, memory dump and reboot when trying to start X server
backtrace of the panic:

Unread portion of the kernel message buffer:
drm0: <SiS 630> port 0xa800-0xa87f mem 0xf0000000-0xf7ffffff,0xe9800000-0xe981ffff irq 11 at device 0.0 on pci1
info: [drm] AGP at 0xec000000 64MB
info: [drm] Initialized sis 1.1.0 20030826 on minor 0
kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x74
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc04fd175
stack pointer           = 0x28:0xcf701a5c
frame pointer           = 0x28:0xcf701a60
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 3
current process         = 501 (Xorg)
trap number             = 12
panic: page fault
Uptime: 41s
Dumping 223 MB (2 chunks)
  chunk 0: 1MB (159 pages) ... ok
  chunk 1: 223MB (57084 pages) 208 192 176 160 144 128 112 96 80 64 48 32 16

#0  doadump () at pcpu.h:165
165             __asm __volatile("movl %%fs:0,%0" : "=r" (td));

>How-To-Repeat:
try to start X server 
>Fix:
don't know how to fix
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Mon Dec 12 18:28:59 UTC 2005 
State-Changed-Why:  
Misfiled followup to kern/90237; content migrated. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=90287 

From: Greg 'groggy' Lehey <grog@FreeBSD.org>
To: _beastie_ <boxforsubscribe@mail.ru>
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: misc/90287: kernel panic on startx command
Date: Tue, 13 Dec 2005 08:01:44 +1030

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 On Monday, 12 December 2005 at 16:29:12 +0000, _beastie_ wrote:
 
 >> Description:
 > kernel panic, memory dump and reboot when trying to start X server
 > backtrace of the panic:
 
 The back trace appears to be missing.  All we have is:
 
 > #0  doadump () at pcpu.h:165
 > 165             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
 
 This tells us that the system is currently preparing to dump core.
 The interesting information is about 5 stack frames further down.
 
 >> How-To-Repeat:
 > try to start X server
 
 That doesn't help anybody else repeat it.  Does this happen to you
 every time?
 
 Greg
 --
 See complete headers for address and phone numbers.
 
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>Unformatted:
