There is a limitation with the 6.X.X series of LKCD that prevents dumping on large machines. The definition of "large" varies from architecture to architecture. The 6.1.0 has a test that will prevent the kernel from compiling if you are on a large machine. You will seen a error similar to:
drivers/dump/dump_fmt.c: In function `compile_time_assertions':
drivers/dump/dump_fmt.c:102: error: duplicate case value
drivers/dump/dump_fmt.c:102: error: previously used here
make: *** [drivers/dump/dump_fmt.o] Error 1... read more
LKCD 6.1.0 minor release. This is a very minor release that adds 2.6.9 support
and adds preliminary support to dump from a interrupt context.
The LKCD 6.1.0 changes:
* kernel.org 2.6.9 support
* remove NMI cruft from IA-64 files
* initial support to dump from interrupt context
* dump_fmt change to reduce stack usage on large systems
Major update for the LKCD project. Version 6.0.0 just posted.
This includes a major reorg of the CVS archive.
Inital LKCD 6.0.0 release:
lkcd-6.0.0_184.108.40.206.patch.gz: patch aginst kernel.org 220.127.116.11 kernel. (Does not work with 2.6.9, that patch is comming).
lkcdutils-6.0.0.tar.gz: lkcdutils including lcrash. Major upgrade and improvements. More Kernel patches & RPMS's will follow soon.