On Sun, 2008-03-16 at 19:32 +0100, Giuseppe Sacco wrote:
> Hi James,
>
> Il giorno dom, 16/03/2008 alle 11.39 -0500, James Bottomley ha scritto:
> > On Sun, 2008-03-16 at 16:19 +0100, Giuseppe Sacco wrote:
> [...]
> > This is a bit strange. It's obviously O2 specific, which makes it a lot
> > harder. Can you compile the kernel with CONFIG_DEBUG_INFO and reproduce
> > (just in case this changes the symbol layout). Then ask gdb where
> [...]
>
> I cannot find any CONFIG_DEBUG_INFO. Do you mean CONFIG_DEBUG_KERNEL?
This from lib/Kconfig.debug:
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
This adds debug symbols to the kernel and modules (gcc -g), and
is needed if you intend to use kernel crashdump or binary object
tools like crash, kgdb, LKCD, gdb, etc on the kernel.
Say Y here only if you plan to debug the kernel.
If unsure, say N.
It does depend on CONFIG_DEBUG_KERNEL according to the depends clause.
James
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