From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from p15137414.pureserver.info (matrixvision.de [217.160.213.229]) by ozlabs.org (Postfix) with ESMTP id 4E21FDDDFA for ; Tue, 8 Apr 2008 21:30:34 +1000 (EST) Message-ID: <47FB5758.5080303@matrix-vision.de> Date: Tue, 08 Apr 2008 13:30:32 +0200 From: Andre Schwarz MIME-Version: 1.0 To: Scott Wood Subject: [Fwd: Re: MPC8343 - "unable to handle paging request @ 0"] Content-Type: multipart/alternative; boundary="------------090305010801020600000609" Cc: linux-ppc list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. --------------090305010801020600000609 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable sorry - forgot Kim + List -------- Original-Nachricht -------- Betreff: Re: MPC8343 - "unable to handle paging request @ 0" Datum: Tue, 08 Apr 2008 13:29:20 +0200 Von: Andre Schwarz An: Scott Wood Referenzen: <47F73625.9040903@matrix-vision.de>=20 <20080407161036.GA2688@loki.buserror.net> Scott Wood schrieb: > On Sat, Apr 05, 2008 at 10:19:49AM +0200, Andr=E9 Schwarz wrote: > =20 >> Kernel starts and crashes with "unable to handle kernel paging request= @ =20 >> 00000000". >> >> After turning debug on in some files I can see that the initrd memory = =20 >> gets reserved and the dtb is parsed correctly. >> PCI memory/io spaces are set up fine. >> >> At first I thought this is a problem with the device tree since the ca= ll =20 >> trace always points to "of_"-functions and "strcmp". >> =20 > > Could you provide this call trace? > > -Scott > =20 Scott, after removing "mpc834x_usb_cfg()" from my "mvblm7_setup_arch()" the=20 crash is delayed ... regards, Andre System-map : c0012098 T strcpy c00120b4 T strncpy c00120f4 T strcat c0012120 T strcmp c0012144 T strlen ... c00ecd08 T of_find_property c00ecda4 T of_get_property c00ecdd8 T of_n_size_cells console [udbg0] enabled setup_arch: bootmem mvblm7_setup_arch() arch: exit Zone PFN ranges: DMA 0 -> 131072 Normal 131072 -> 131072 Movable zone start PFN for each node early_node_map[1] active PFN ranges 0: 0 -> 131072 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1300= 48 Kernel command line: root=3D/dev/ram ro rootfstype=3Dsquashfs PID hash table entries: 2048 (order: 11, 8192 bytes) clocksource: timebase mult[3c00001] shift[22] registered Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc0012128 Oops: Kernel access of bad area, sig: 11 [#1] mvBlueLYNX-M7 Modules linked in: NIP: c0012128 LR: c00ecd44 CTR: 00000007 REGS: c0193ec0 TRAP: 0300 Not tainted (2.6.25-rc8-01197-g1de15bb-dirty= ) MSR: 00009032 CR: 48002048 XER: 00000000 DAR: 00000000, DSISR: 20000000 TASK =3D c0182510[0] 'swapper' THREAD: c0192000 GPR00: c00ecdb4 c0193f70 c0182510 00000000 c01401c7 ffffffff c017a808=20 c00db350 GPR08: 00000000 c0180000 000a2c20 c017d3f4 48000042 ffffdfd7 1fffd000=20 00000000 GPR16: ffffdfd7 ffffdfd7 00000000 00000000 1fff8974 1ff426f8 00000004=20 00288000 GPR24: 00000000 00000000 c0198fa0 c0190000 c0190000 00000000 c01401c8=20 dfffffa8 Call Trace: [c0193f70] [00001111] (unreliable) [c0193f90] [c00ecdb4] [c0193fa0] [c016df50] [c0193fb0] [c017705c] [c0193fc0] [c01646b4] [c0193ff0] [00003438] Instruction dump: 3884ffff 8c050001 2c000000 4082fff8 38a5ffff 8c040001 2c000000 9c050001 4082fff4 4e800020 38a3ffff 3884ffff <8c650001> 2c830000 8c040001 7c601851 ---[ end trace 8640abe69a316dee ]--- Kernel panic - not syncing: Attempted to kill the idle task! Rebooting in 180 seconds.. =20 MATRIX VISION GmbH, Talstra=DFe 16, DE-71570 Oppenweiler - Registergeric= ht: Amtsgericht Stuttgart, HRB 271090 Gesch=E4ftsf=FChrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner --------------090305010801020600000609 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit sorry - forgot Kim + List

-------- Original-Nachricht --------
Betreff: Re: MPC8343 - "unable to handle paging request @ 0"
Datum: Tue, 08 Apr 2008 13:29:20 +0200
Von: Andre Schwarz <andre.schwarz@matrix-vision.de>
An: Scott Wood <scottwood@freescale.com>
Referenzen: <47F73625.9040903@matrix-vision.de> <20080407161036.GA2688@loki.buserror.net>


Scott Wood schrieb: 
On Sat, Apr 05, 2008 at 10:19:49AM +0200, André Schwarz wrote:
  
Kernel starts and crashes with "unable to handle kernel paging request @  
00000000".

After turning debug on in some files I can see that the initrd memory  
gets reserved and the dtb is parsed correctly.
PCI memory/io spaces are set up fine.

At first I thought this is a problem with the device tree since the call  
trace always points to "of_"-functions and "strcmp".
    

Could you provide this call trace?

-Scott
Scott,

after removing "mpc834x_usb_cfg()" from my "mvblm7_setup_arch()" the crash is delayed ...


regards,
Andre



System-map :

c0012098 T strcpy
c00120b4 T strncpy
c00120f4 T strcat
c0012120 T strcmp
c0012144 T strlen
...
c00ecd08 T of_find_property
c00ecda4 T of_get_property
c00ecdd8 T of_n_size_cells

console [udbg0] enabled
setup_arch: bootmem
mvblm7_setup_arch()
arch: exit
Zone PFN ranges:
  DMA             0 ->   131072
  Normal     131072 ->   131072
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0:        0 ->   131072
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
Kernel command line: root=/dev/ram ro rootfstype=squashfs
PID hash table entries: 2048 (order: 11, 8192 bytes)
clocksource: timebase mult[3c00001] shift[22] registered
Unable to handle kernel paging request for data at address 0x00000000
Faulting instruction address: 0xc0012128
Oops: Kernel access of bad area, sig: 11 [#1]
mvBlueLYNX-M7
Modules linked in:
NIP: c0012128 LR: c00ecd44 CTR: 00000007
REGS: c0193ec0 TRAP: 0300   Not tainted  (2.6.25-rc8-01197-g1de15bb-dirty)
MSR: 00009032 <EE,ME,IR,DR>  CR: 48002048  XER: 00000000
DAR: 00000000, DSISR: 20000000
TASK = c0182510[0] 'swapper' THREAD: c0192000
GPR00: c00ecdb4 c0193f70 c0182510 00000000 c01401c7 ffffffff c017a808 c00db350
GPR08: 00000000 c0180000 000a2c20 c017d3f4 48000042 ffffdfd7 1fffd000 00000000
GPR16: ffffdfd7 ffffdfd7 00000000 00000000 1fff8974 1ff426f8 00000004 00288000
GPR24: 00000000 00000000 c0198fa0 c0190000 c0190000 00000000 c01401c8 dfffffa8
Call Trace:
[c0193f70] [00001111]  (unreliable)
[c0193f90] [c00ecdb4]
[c0193fa0] [c016df50]
[c0193fb0] [c017705c]
[c0193fc0] [c01646b4]
[c0193ff0] [00003438]
Instruction dump:
3884ffff 8c050001 2c000000 4082fff8 38a5ffff 8c040001 2c000000 9c050001
4082fff4 4e800020 38a3ffff 3884ffff <8c650001> 2c830000 8c040001 7c601851
---[ end trace 8640abe69a316dee ]---
Kernel panic - not syncing: Attempted to kill the idle task!
Rebooting in 180 seconds..                  


MATRIX VISION GmbH, Talstraße 16, DE-71570 Oppenweiler - Registergericht: Amtsgericht Stuttgart, HRB 271090 Geschäftsführer: Gerhard Thullner, Werner Armingeon, Uwe Furtner
--------------090305010801020600000609--