Re: çå: problem with kmemleak

From: AmÃrico Wang
Date: Mon May 16 2011 - 04:58:45 EST

On Mon, May 16, 2011 at 4:53 PM, Catalin Marinas
<catalin.marinas@xxxxxxx> wrote:
> On Mon, 2011-05-16 at 08:18 +0100, ttlxzz ccc wrote:
>> I'm very glad to find the reason of this problem. It's just because
>> the CONFIG_FRAME_POINTER is not set :).
>> And in dump_stack() which is defined in arch/x86/kernel/dumpstack.c,
>> CONFIG_FRAME_POINTER control whether to get the bp.
>> Now I enable CONFIG_FRAME_POINTER and I can see the full backtrace. :)
> It's good you found it. I thought STACKTRACE on x86_64 would set the
> necessary options like FRAME_POINTER so that it works properly. Kmemleak
> only sets STACKTRACE.

I am wondering why STACKTRACE doesn't select FRAME_POINTER on x86_64,
which seems necessary...
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