Re: gdb on Linux Kernel dumps (gdb-kdump)

[Ales Novak <alnovak@suse.cz>]

On 2015-9-22 19:56, Andreas Arnez wrote:

> Right.  As pointed out in the talk at the Cauldron, there are already a
> few examples in the Linux kernel source tree under "scripts/gdb".  In
> addition, this post mentions another GDB-enhancing project for Linux
> kernel debugging, named "LKD":
>
>  https://sourceware.org/ml/gdb-patches/2015-06/msg00040.html
>
> The LKD project focuses more on live debugging and thus might be a
> useful complement to gdb-kdump.

Yes. The scripts in scripts/gdb/linux can be used, if they match the 
dumped kernel. LKD sounds interesting, being slightly in overlap with 
gdb-kdump.

> So, how to continue?  Would you be able to convert gdb-kdump into
> patches against upstream GDB and send those to the gdb-patches mailing
> list?

The github repo is based on the very recent 7.10 release, i.e. it can be 
applied almost harmlessly. Yet it brings dependance on the libkdumpfile, 
which in turn brings dependance on liblzo2, libz, libsnappy (these are 
used in the dump formats), which I don't know how upstream will like. 
Should I try to send it anyway?

-- 
Ales Novak