[RFC PATCH] kernel/kallsyms.c: only show legal kernel symbol

[Ming Lei]

On Fri, Oct 25, 2013 at 7:58 PM, Rusty Russell <rusty at rustcorp.com.au> wrote:
>>
>> Basically these symbols are only used to generate code, and in
>> kernel mode, CPU won't run into the corresponding addresses
>> because the generate code is copied to other address during booting,
>> so I understand they won't appear in backtraces.
>
> An oops occurs when something went *wrong*.  We look up all kinds of
> stuff.  Are you so sure that *none* of the callers will ever see these
> strange symbols and produce a confusing result?

Suppose that might happen, kernel should be smart enough to know
that the address is not inside kernel address space and won't produce
confusing result, right?


Thanks,
-- 
Ming Lei