Re: vmlinux buildid doesn't match the running one (/sys/kernel/notes)

[Francis Moreau <francis.moro@gmail.com>]

Hi,

Sorry for asking again but I would be really greatfull is someone can
tell me what's wrong when using a kernel that I compiled by my own.

I do not have that issue is I use the kernel shipped by my distro (FC14).

Thanks

On Thu, Apr 28, 2011 at 7:04 PM, Francis Moreau <francis.moro@gmail.com> wrote:
> Hello,
>
> I'm trying to use perf-probe, but it fails.
>
> Basically it's due to the buildid of the running kernel (the one which
> can be read from /sys/kernel/notes) and the one in vmlinx (which I
> compiled my self).
>
> I did this:
>
>  $ make
>  $ make modules_install install
>  $ ls vmlinux
>  vmlinux
>
> reboot
>
>  $ perf probe -k vmlinux -L schedule
>  Failed to find path of kernel module.
>  Failed to open debuginfo file.
>  Error: Failed to show lines. (-2)
>
> So my question is why the buildids doesn't match ?
>
> I guess I did something wrong since it's pretty a standard use case
> but I don't see why...
>
> Thanks
> --
> Francis
>



-- 
Francis