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

From: Rusty Russell
Date: Fri Oct 25 2013 - 01:51:36 EST

Ming Lei <tom.leiming@xxxxxxxxx> writes:
> On Fri, Oct 25, 2013 at 7:08 AM, Rusty Russell <rusty@xxxxxxxxxxxxxxx> wrote:
>> Sorry, I was imprecise. I was referring to the kernel's kallsyms
>> tables produced by scripts/kallsyms.c. This patch left them in the
>> the kallsyms tables and filtered them out from /proc/kallsyms.
> Yes, but it isn't easy to do it by script/kallsyms.c , and IMO, it should
> be correct to hide them for user space but keep them in kallsyms table.

So they'll appear in backtraces? And turn up randomly for other symbol

I don't think you really want this!

>> It's weird that cpu_v7_suspend_size appeared above, since kallsyms
>> should filter out 'A' symbols already.
> Sorry, the 'A' symbol is a mistake, but the others do exist in /proc/kallsyms.

Ah, OK.

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