AW: Kernel fault with simple UIO interrupt driver in 2.6.30.4

Tue Aug 4 17:23:54 EST 2009

Oh okay, I didnt think anybody would need it :)

=> bootm 2000000 - 3000000
## Booting image at 02000000 ...
   Image Name:   Linux-2.6.30.4
   Created:      2009-08-04   7:06:18 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    3978238 Bytes =  3.8 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
   Booting using flat device tree at 0x3000000
Using MPC831x RDB machine description
Linux version 2.6.30.4 (root at vmlinux) (gcc version 4.0.0 (DENX ELDK 4.1 4.0.0)) #25 Tue Aug 4 09:05:58 CEST 2009
console [udbg0] enabled
setup_arch: bootmem
mpc831x_rdb_setup_arch()
arch: exit
Zone PFN ranges:
  DMA      0x00000000 -> 0x00008000
  Normal   0x00008000 -> 0x00008000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00008000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: BOOTLOADER_VER=MCU_bl_BPT_1.0.4
NR_IRQS:512
IPIC (128 IRQ sources) at fdffd700
PID hash table entries: 512 (order: 9, 2048 bytes)
clocksource: timebase mult[7800001] shift[22] registered
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 123888k/131072k available (5560k kernel code, 7020k reserved, 184k data, 93k bss, 2476k init)
Kernel virtual memory layout:
  * 0xffffe000..0xfffff000  : fixmap
  * 0xfdffc000..0xfe000000  : early ioremap
  * 0xc9000000..0xfdffc000  : vmalloc & ioremap
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 66.56 BogoMIPS (lpj=133120)
Mount-cache hash table entries: 512
net_namespace: 716 bytes
NET: Registered protocol family 16

PCI: Probing PCI hardware
bio: create slab <bio-0> at 0
SCSI subsystem initialized
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
NET: Registered protocol family 1
Freescale PowerQUICC MII Bus: probed
Freescale PowerQUICC MII Bus: probed
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
msgmni has been set to 242
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16) is a 16550A
console handover: boot [udbg0] -> real [ttyS0]
serial8250.0: ttyS1 at MMIO 0xe0004600 (irq = 17) is a 16550A
brd: module loaded
loop: module loaded
eth0: Gianfar Ethernet Controller Version 1.2, 00:04:9f:ef:23:33
eth0: Running with NAPI enabled
eth0: 256/256 RX/TX BD ring size
eth1: Gianfar Ethernet Controller Version 1.2, 00:e0:0c:00:7e:21
eth1: Running with NAPI enabled
eth1: 256/256 RX/TX BD ring size
e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
e100: Copyright(c) 1999-2006 Intel Corporation
Fixed MDIO Bus: probed
IRQ 20/IRQ3 Kernel Driver: IRQF_DISABLED is not guaranteed on shared IRQs
Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0x00000000
Oops: Kernel access of bad area, sig: 11 [#1]
MPC831x RDB
Modules linked in:
NIP: 00000000 LR: c004755c CTR: 00000000
REGS: c7827d50 TRAP: 0400   Not tainted  (2.6.30.4)
MSR: 20001032 <ME,IR,DR>  CR: 28000022  XER: 20000000
TASK = c7828000[1] 'swapper' THREAD: c7826000
GPR00: 00000002 c7827e00 c7828000 00000014 00000002 00000014 c73adb7c c06bb460
GPR08: 00000000 00000000 00000014 00000000 00000000 00000000 07fff000 00000001
GPR16: ffffffff 00000000 007fff00 07ff9794 00000000 00000000 007ffeb0 00000000
GPR24: c73ad180 c02d70a4 c0574f28 00009032 00000014 00000000 c73adb40 c0574f08
Call Trace:
[c7827e00] [c00474e4] 0xc00474e4 (unreliable)
[c7827e20] [c0047754] 0xc0047754
[c7827e50] [c019c568] 0xc019c568
[c7827e90] [c019c7f8] 0xc019c7f8
[c7827ea0] [c0177a80] 0xc0177a80
[c7827ec0] [c0177b94] 0xc0177b94
[c7827ee0] [c01764d8] 0xc01764d8
[c7827f10] [c0177590] 0xc0177590
[c7827f20] [c017703c] 0xc017703c
[c7827f40] [c0178080] 0xc0178080
[c7827f60] [c0319884] 0xc0319884
[c7827f70] [c00038dc] 0xc00038dc
[c7827fe0] [c03037c0] 0xc03037c0
[c7827ff0] [c0010778] 0xc0010778
Instruction dump:
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
---[ end trace 747097271ea314a9 ]---
Kernel panic - not syncing: Attempted to kill init!
Rebooting in 180 seconds..

Frank Prepelica
Software Design Engineer

Ubidyne GmbH
Lise-Meitner-Str.-14
89081 Ulm - Germany

Phone:             +49 731 88 00 71 58
Fax:                 +49 731 88 00 71 99
Email:              frank.prepelica at ubidyne.com
Homepage:       www.ubidyne.com

Registered office: Ulm
District court of Ulm: HRB 5295
Managing Directors:
Dipl. Ing. Ken Hawk
Dipl. Ing. Beat Müller
Dipl. Ing. Mike Levis

> -----Ursprüngliche Nachricht-----
> Von: Michael Ellerman [mailto:michael at ellerman.id.au]
> Gesendet: Dienstag, 4. August 2009 04:31
> An: Frank Prepelica
> Cc: linuxppc-dev at ozlabs.org
> Betreff: Re: Kernel fault with simple UIO interrupt driver in 2.6.30.4
> 
> On Mon, 2009-08-03 at 15:07 +0200, Frank Prepelica wrote:
> > Hi all,
> >
> > due to a new revision of our custimized board, i need to port our
> current kernel (2.6.24)
> > to the latest kernel version 2.6.30.4.
> >
> > Among other things the UIO interrupt driver makes some trouble. The
> driver runs
> > smoothly on 2.6.24 but I'll get kernel faults when running in 2.6.30.4.
> 
> You seem to have forgotten to post the log of the oops :)
> 
> cheers