2003-01-21 06:08:28

by Madhavi

[permalink] [raw]
Subject: Kernel debugger


Hi

I am currently testing a device driver on linux-2.4.19. This is
implemented as a loadable kernel module.

# Could anyone suggest a good debugger that can be used to debug kernel
modules?

# When I tried using gdb with vmlinux and /proc/kcore, I am getting a
message saying that no debug symbols are found. How do I enable debug
symbols for linux kernel image? Kernel Debug is already enabled. Is
there some other configuration that needs to be there?

Thanks in advance.

regards
Madhavi.


2003-01-21 06:48:50

by Linux Geek

[permalink] [raw]
Subject: Re: Kernel debugger



Madhavi wrote:

># Could anyone suggest a good debugger that can be used to debug kernel
> modules?
>
>
LKCD, KDB are good choices.

>
>


2003-01-22 18:37:42

by Richard J Moore

[permalink] [raw]
Subject: Re: Kernel debugger

On Tuesday 21 Jan 2003 6:17 am, Madhavi wrote:
If you need to debug a complex problem where stepping through or even
pin-pointing roughtly the right code location then you might consider
dprobes/kprobes.

Richard




> Hi
>
> I am currently testing a device driver on linux-2.4.19. This is
> implemented as a loadable kernel module.
>
> # Could anyone suggest a good debugger that can be used to debug kernel
> modules?
>
> # When I tried using gdb with vmlinux and /proc/kcore, I am getting a
> message saying that no debug symbols are found. How do I enable debug
> symbols for linux kernel image? Kernel Debug is already enabled. Is
> there some other configuration that needs to be there?
>
> Thanks in advance.
>
> regards
> Madhavi.
>
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--
Richard J Moore
IBM Linux Technology Centre