Unhandled fault: imprecise external abort
Pankaj Pandey
pankaj.embedded at gmail.com
Wed Jun 23 11:59:57 EDT 2010
Hi,
I am working on Freescale MXC series based target board runing with 2.6.31
kernel. I have written a small test application to test the one of driver.
In my test application, I am using mmap to map the kernel memory to user
space and I am trying to read some register values.
My user space mmap function is as such :
virt_addr = mmap(NULL, 4 * 1024, PROT_READ, MAP_SHARED ,fd, 0);
The mmap returns a specific address in virt_addr.
When I try to read the contents of this address , the kernel throws
following error :
Unhandled fault: imprecise external abort (0xc06) at 0x00000000
Any pointers on this will great help to resolve this issue.
Thanks and Regards,
Pankaj Pandey
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