Re: [RFC PATCH] kernel/kallsyms.c: only show legal kernel symbol
From: Ming Lei
Date: Sat Oct 26 2013 - 08:31:18 EST
On Fri, Oct 25, 2013 at 7:58 PM, Rusty Russell <rusty@xxxxxxxxxxxxxxx> 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?
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