data abort in paging_init call in kernel

[弋天 卜]

Try to disable trace32 data abort trigger,when you are debugging linux,there will be many reasonable data abort generated, just ignore them.

在 2012-3-14，23:52，"pcuser p" <pcuser.mails at gmail.com> 写道：

> I'm doing kernel porting to arm926 based FPGA board,very minimal setup.
> Only UART and timer devices are available as part of FPGA.
> 
> Below are the details
> #define PLAT_PHYS_OFFSET       0x80000000 (with 128 MB SDRAM)
> #define CONFIG_PAGE_OFFSET  0xc0000000
> 
> Kernel command parameter has 64MB for mem (mem=64M)
> 
> Memory layout:
> 
> 0xc000_0000 - 0xc800_0000 (128MB virtual mapped SDRAM)
> initramfs from 0xC200_0000 - 0xC280_0000 (8MB)
> vmalloc is used from 0xc400_0000 - 0xc800_0000
> 
> CONFIG_HIGH_MEM not used
> 
> device registers are accessed by using ioremap() calls
> 
> If I enable data cache and debug with JTAG, Kernel ends up in data
> abort exception vector address after paging_init() call.
> 
> I think there is some problem in memory setup.Can some one suggest how
> to overcome this...
> 
> 
> Thanks,
> pcuser
> 
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