linux-crashdump not working: "crashkernel reservation failed - memory is in use"

This is likely a duplicate of #364414 but I wanted to make sure that all the information about my system is attached.

This is a fresh karmic install (from todays daily) with 386, i965 and no proprietary kernel modules. The linux-crashdump
stuff is not working, the error is:
$ sudo /etc/init.d/kdump start
 * Loading crashkernel... Memory for crashkernel is not reserved
Please reserve memory by passing "crashkernel=X@Y" parameter to the kernel
Then try loading kdump kernel

$ cat /proc/cmdline
root=UUID=42dfb8ca-e670-4413-98b3-4ad6641705e6 ro crashkernel=384M-2G:64M@16M,2G-:128M@16M

Please let me know if there is anything more that you need.

ProblemType: Bug
Architecture: i386
Date: Fri Jun 19 13:39:06 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=4932329a-c15c-48c8-905c-026b8380c9a6
MachineType: MICRO-STAR INTERNATIONAL CO.,LTD MS-7528
Package: linux-image-2.6.30-9-generic 2.6.30-9.10
ProcCmdLine: root=UUID=42dfb8ca-e670-4413-98b3-4ad6641705e6 ro crashkernel=384M-2G:64M@16M,2G-:128M@16M
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-9.10-generic
RelatedPackageVersions: linux-backports-modules-2.6.30-9-generic N/A
SourcePackage: linux
Uname: Linux 2.6.30-9-generic i686
dmi.bios.date: 06/10/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.1
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MS-7528
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.1:bd06/10/2008:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7528:pvr1.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-7528:rvr1.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr1.0:
dmi.product.name: MS-7528
dmi.product.version: 1.0
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO.,LTD