[EXTERNAL] Re: Help

[Fieck, Brennan]

I got one hit on that:

/usr/src/debug/kernel-lt-4.9.70/linux-4.9.70-1.el7.centos.x86_64/tools/perf/tests/vmlinux-kallsyms.c

I've never tested on this specific machine with a normal kernel, but I have used stap before on an Ubuntu
VM.
________________________________________
From: Frank Ch. Eigler <fche@redhat.com>
Sent: Thursday, June 14, 2018 10:10 AM
To: Fieck, Brennan
Cc: Vratislav Bendel; systemtap@sourceware.org
Subject: Re: [EXTERNAL] Re: Help

"Fieck, Brennan" <Brennan_Fieck@comcast.com> writes:

> [...]
> $ repoquery -l kernel-lt-debuginfo | cut -d '/' --fields=1,2,3,4,5 | sort | uniq
>
> /usr/lib/debug
> /usr/lib/debug/.build-id
> /usr/lib/debug/.dwz
> /usr/lib/debug/lib
> /usr/lib/debug/usr
> /usr/src/debug/kernel-lt-4.9.70

Rather than this search, how about

% rpm -ql kernel-lt-debuginfo | grep vmlinux

It would not surprise me if that custom kernel build ended up missing
some of the debuginfo.  The kernel.spec files that do this are deep
magic.

Have you tested stap on your box, but with a normal distro kernel
and its normal debuginfo?


- FChE