Linux crashes during memory mapping
Steven Blakeslee
BlakesleeS at embeddedplanet.com
Thu Mar 31 22:53:04 EST 2005
> I do not have any problem with the functioning of U-Boot but
Linux crashes after
> printing "Uncompressing Kernel ... OK" and then it seems that nothing
is happening.
Do you have the SYPCR(serial watch dog timer) disabled?
> 3. The memory map of the VPN Board (MY BOARD) is as folllows:
>
=====================================================================
> Memory Region Size
Address Range
>
======================================================================
> SDRAM 32MByte 0000_0000
-- 01FF_FFFF
> Flash 32MByte FF00_0000
-- FFFF_FFFF
Have you done a full test to make sure your RAM is correctly mapped?
> This is what the console log buffer has shown:
>
=================================================================
> md 0x00177e34
>
> 00177e34: 3c363e6d 73746172 743d303c 363e6d73
<6>mstart=0<6>ms
> 00177e44: 697a653d 303c363e 66737461 72743d30
ize=0<6>fstart=0
> 00177e54: 3c363e66 73697a65 3d303c36 3e696d6d
<6>fsize=0<6>imm
> 00177e64: 723d303c 363e626f 74666c61 673d303c
r=0<6>botflag=0<
> 00177e74: 363e6970 6164643d 303c363e 65616464
6>ipadd=0<6>eadd
> 00177e84: 3d633031 35303032 383c363e 65737065
=c0150028<6>espe
> 00177e94: 643d303c 363e696e 6974663d 303c363e
d=0<6>initf=0<6>
> 00177ea4: 62757366 3d303c36 3e63706d 663d303c
busf=0<6>cpmf=0<
> 00177eb4: 363e6272 67663d30 3c363e73 6363663d
6>brgf=0<6>sccf=
> 00177ec4: 303c363e 76636f3d 303c363e 62617564
0<6>vco=0<6>baud
> 00177ed4: 3d304f6f 70733a20 6b65726e 656c2061 =0Oops: kernel
a
These values do not look correct. Everything is zero.
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