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Scott Wood schrieb:
<blockquote cite="mid:20080407161036.GA2688@loki.buserror.net"
type="cite">
<pre wrap="">On Sat, Apr 05, 2008 at 10:19:49AM +0200, André Schwarz wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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".
</pre>
</blockquote>
<pre wrap=""><!---->
Could you provide this call trace?
-Scott
</pre>
</blockquote>
<br>
Scott,<br>
<br>
thanks for your reply.<br>
<br>
please find below the output after the bootm command in u-boot.<br>
<br>
My System.map :<br>
<br>
...<br>
c00126b8 T strcpy<br>
c00126d4 T strncpy<br>
c0012714 T strcat<br>
c0012740 T strcmp<br>
c0012764 T strlen<br>
c001277c T memcmp<br>
...<br>
c0140bc4 T of_find_property<br>
c0140c74 T of_get_property<br>
c0140ca8 T of_device_is_compatible<br>
c0140d48 T of_match_node<br>
c0140e68 T of_find_matching_node<br>
c0140f20 T of_n_size_cells<br>
c0140f9c T of_n_addr_cells<br>
<br>
<br>
<br>
Log:<br>
<br>
<br>
# Booting kernel from Legacy Image at ff810000 ...<br>
Image Name: 2.6.25 mvBL-M7 MPC8343 #1<br>
Image Type: PowerPC Linux Kernel Image (uncompressed)<br>
Data Size: 2084636 Bytes = 2 MB<br>
Load Address: 00000000<br>
Entry Point: 00000000<br>
Verifying Checksum ... OK<br>
Loading Kernel Image ... OK<br>
OK<br>
## Flattened Device Tree blob at 00000000<br>
Booting using the fdt blob at 0x600000<br>
## Loading init Ramdisk from Legacy Image at 01000000 ...<br>
Image Name: mvBC-1G uInitrd #1.1.03<br>
Image Type: PowerPC Linux RAMDisk Image (uncompressed)<br>
Data Size: 2654208 Bytes = 2.5 MB<br>
Load Address: 00000000<br>
Entry Point: 00000000<br>
Verifying Checksum ... OK<br>
Loading Ramdisk to 1fcb7000, end 1ff3f000 ... OK<br>
-> early_init_devtree(c0600000)<br>
search "chosen", depth: 0, uname:<br>
search "chosen", depth: 1, uname: chosen<br>
Looking for initrd properties... <3>initrd_start=0xdfcb7000
initrd_end=0xdff3f000<br>
Command line is: root=/dev/ram ro rootfstype=squashfs<br>
dt_root_size_cells = 1<br>
dt_root_addr_cells = 1<br>
memory scan node memory, reg size 8, data: 0 20000000 2 1,<br>
- 0 , 20000000<br>
reserving: 1fcb7000 -> 288001<br>
Phys. mem: 20000000<br>
-> move_device_tree<br>
<- move_device_tree<br>
Scanning CPUs ...<br>
boot cpu: logical 0 physical 0<br>
<- early_init_devtree()<br>
Using mvBlueLYNX-M7 machine description<br>
Linux version 2.6.25-rc8-01197-g1de15bb-dirty (root@nova) (gcc version
4.0.0 (DENX ELDK 4.1 4.0.0)) #1 PREEMPT Tue Apr 8 10:40:51 CEST 2008<br>
-> unflatten_device_tree()<br>
size is 1840, allocating...<br>
unflattening dfffe7bc...<br>
fixed up name for -><br>
fixed up name for chosen -> chosen<br>
fixed up name for aliases -> aliases<br>
fixed up name for cpus -> cpus<br>
fixed up name for PowerPC,8343@0 -> PowerPC,8343<br>
fixed up name for memory -> memory<br>
fixed up name for soc8343@e0000000 -> soc8343<br>
fixed up name for wdt@200 -> wdt<br>
fixed up name for i2c@3000 -> i2c<br>
fixed up name for rtc@68 -> rtc<br>
fixed up name for i2c@3100 -> i2c<br>
fixed up name for spi@7000 -> spi<br>
fixed up name for usb@22000 -> usb<br>
fixed up name for mdio@24520 -> mdio<br>
fixed up name for ethernet-phy@0 -> ethernet-phy<br>
fixed up name for ethernet-phy@1 -> ethernet-phy<br>
fixed up name for ethernet@24000 -> ethernet<br>
fixed up name for ethernet@25000 -> ethernet<br>
fixed up name for serial@4500 -> serial<br>
fixed up name for serial@4600 -> serial<br>
fixed up name for pic@700 -> pic<br>
fixed up name for localbus@e0005000 -> localbus<br>
fixed up name for flash@0,0 -> flash<br>
<- unflatten_device_tree()<br>
Found initrd at 0xdfcb7000:0xdff3f000<br>
console [udbg0] enabled<br>
setup_arch: bootmem<br>
mvblm7_setup_arch()<br>
Unable to handle kernel paging request for data at address 0x00000000<br>
Faulting instruction address: 0xc0012748<br>
Oops: Kernel access of bad area, sig: 11 [#1]<br>
PREEMPT mvBlueLYNX-M7<br>
Modules linked in:<br>
NIP: c0012748 LR: c0140c10 CTR: 00000000<br>
REGS: c01f9e40 TRAP: 0300 Not tainted
(2.6.25-rc8-01197-g1de15bb-dirty)<br>
MSR: 00001032 <ME,IR,DR> CR: 22008048 XER: 20000000<br>
DAR: 00000000, DSISR: 20000000<br>
TASK = c01e4510[0] 'swapper' THREAD: c01f8000<br>
GPR00: c0140c84 c01f9ef0 c01e4510 00000000 c0197a7f ffffffff c01f9edc
00000000<br>
GPR08: c01f15e4 00000003 c0600b84 0000004d 22002048 ffffffdf 1fffd000
00000000<br>
GPR16: ffffffdf ffff7fdf 00000000 00000000 1fff8974 1ff426f8 00000004
00288000<br>
GPR24: 00000002 00000000 5f0fffff c01993e4 c01f9f28 c0197a80 c01f8000
dffff9e4<br>
Call Trace:<br>
[c01f9ef0] [c001c190] (unreliable)<br>
[c01f9f10] [c0140c84]<br>
[c01f9f20] [c0140ccc]<br>
[c01f9f40] [c014145c]<br>
[c01f9f60] [c0014014]<br>
[c01f9fa0] [c01d1a40]<br>
[c01f9fb0] [c01ce64c]<br>
[c01f9fc0] [c01c55ac]<br>
[c01f9ff0] [00003438]<br>
Instruction dump:<br>
3884ffff 8c050001 2c000000 4082fff8 38a5ffff 8c040001 2c000000 9c050001<br>
4082fff4 4e800020 38a3ffff 3884ffff <8c650001> 2c830000 8c040001
7c601851<br>
---[ end trace 8640abe69a316dee ]---<br>
Kernel panic - not syncing: Attempted to kill the idle task!<br>
Rebooting in 180 seconds.. <br>
<br>
<br>
<br>
<br>
<br>
<br>
Please let me know if you need more information.<br>
<br>
<br>
regards,<br>
Andre<br>
<BR>
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