Kernel boot up

smitha.vanga at wipro.com smitha.vanga at wipro.com
Thu Aug 25 17:57:36 EST 2011


Hi Scott,

I am currently trying to bring up 2.6.39 kernel on a target based on
MPC8247
Processor, using the attched .dts  file . I get the below logs while the
kernel is booting.
I see that the unflattening of the device tree and the initial loading
of the kernel and ramdisk file system is happening correctly. Can you
point me where exactly I can look for this issue. I am attaching the
.config and .dts file I am using.


bootm 1000000 2000000 c00000
## Current stack ends at 0x03e93cc8
*  kernel: cmdline image address = 0x01000000
## Booting kernel from Legacy Image at 01000000 ...
   Image Name:   Linux-2.6.39
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1766015 Bytes = 1.7 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   kernel data at 0x01000040, len = 0x001af27f (1766015)
*  ramdisk: cmdline image address = 0x02000000
## Loading init Ramdisk from Legacy Image at 02000000 ...
   Image Name:
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    2211111 Bytes = 2.1 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   ramdisk start = 0x02000040, ramdisk end = 0x0221bd67
*  fdt: cmdline image address = 0x00c00000
## Checking for 'FDT'/'FDT Image' at 00c00000
*  fdt: raw FDT blob
## Flattened Device Tree blob at 00c00000
   Booting using the fdt blob at 0xc00000
   of_flat_tree at 0x00c00000 size 0x00000f12
   Uncompressing Kernel Image ... OK
   kernel loaded at 0x00000000, end = 0x00389d20
## initrd_high = 0xffffffff, copy_to_ram = 1
   Loading Ramdisk to 03c76000, end 03e91d27 ... OK
   ramdisk load start = 0x03c76000, ramdisk load end = 0x03e91d27
## device tree at 00c00000 ... 00c00f11 (len=16146 [0x3F12])
   Loading Device Tree to 007fc000, end 007fff11 ... OK
Updating property 'clock-frequency' =  00 fe 70 b8
Updating property 'bus-frequency' =  03 f9 c2 e0
Updating property 'timebase-frequency' =  00 7f 38 5c
Updating property 'clock-frequency' =  09 f0 67 30
## Transferring control to Linux (at address 00000000) ...
   Booting using OF flat tree...
Using Freescale MPC8272 ADS machine description
Linux version 2.6.39 (2.6.39) (ktuser at ktuser) (gcc version 4.4.5
(Buildroot 2011
.02) ) #5 Wed Aug 24 15:02:07 IST 2011
Found initrd at 0xc3c76000:0xc3e91d27
No bcsr in device tree
Zone PFN ranges:
  DMA      0x00000000 -> 0x00004000
  Normal   empty
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00004000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
16256
Kernel command line: mem=64M root=/dev/ram rw
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 57972k/65536k available (3524k kernel code, 7564k reserved, 100k
data, 1
137k bss, 168k init)
Kernel virtual memory layout:
  * 0xfffdf000..0xfffff000  : fixmap
  * 0xfdfb6000..0xfe000000  : early ioremap
  * 0xc5000000..0xfdfb6000  : vmalloc & ioremap
SLUB: Genslabs=15, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:512 nr_irqs:512 16
No pci pic node in device tree.
clocksource: timebase mult[1dfc2974] shift[22] registered
console [ttyCPM0] enabled
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
NET: Registered protocol family 16
PCI: Probing PCI hardware
bio: create slab <bio-0> at 0
vgaarb: loaded
Switching to clocksource timebase

brd: module loaded
loop: module loaded
of-flash ff800000.flash: do_map_probe() failed
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk at qualcomm.com>
eth0: fs_enet: 00:00:00:00:00:00
eth1: fs_enet: 00:00:00:00:00:00
CPM2 Bitbanged MII: probed
mousedev: PS/2 mouse device common for all mice
TCP cubic registered
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Freeing unused kernel memory: 168k init
Populating /dev using udev: /sbin/udevd: '/lib/libc.so.6' library
contains unsup
ported TLS
/sbin/udevd: '/lib/libc.so.6' library contains unsupported TLS
/sbin/udevd: can't load library 'libc.so.6'
FAIL
/sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS
/sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS
/sbin/udevstart: can't load library 'libc.so.6'
FAIL
done
Starting network...


Regards, 

Smitha  


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