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?

Ming Lei
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at