Question about ksymoops

["Ahmed M" <ahmedh11@hotmail.com>]

Greetings,

I have a question about oops debugging.  I have linux running in an embedded 
evvironment running off flash, and mounting root fs over nfs.
I dont have the System.map or vmlinux on the root filesystem.  Here are my 
questions:

1.  I run the following command:

$ ksymoops panic.out        // panic.out contains the output of kernel

I still get some translations of addresses in the output of the above 
command.  How is ksymoops able to do that?

2.  I copied the System.map and vmlinux file to the root filesystem and 
issued the following command:

$ ksymoops -s /System.out -v /vmlinux panic.out

The output that I get from this command, the tranlations of address it 
different from the previous command.  Why?
If ksymoops has access to System.out file, why does it need access to 
vmlinux too?  What info does ksymoops get from vmlinux?

Thanks in advance,
Ahmed.


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