The right thing to do as I have discussed with the people involved is to modify the memory map data structure to have a new memory type ID for memory which is to be dumped. That eliminates the need to put all this info into the command line. Simon Horman <horms at verge.net.au> wrote: >On Tue, Jan 22, 2013 at 04:02:12PM +0100, Thomas Renninger wrote: >> Details were discussed on quite some lists (kexec, lkml, x86, etc) >> in a kernel thread with subject: >> [PATCH] x86 e820: only void usable memory areas in memmap=exactmap >case >> >> The patch that memmap= can take several arguments is already queued >> in linux-x86-tip in the mm2 branch. >> >> There have been no objections on the introduction to >memmap=resetusablemap >> for several days after discussing things in detail. The repost >patches >> (will do that now) propably will show up in x86-tip mainline kernel >> tree pretty soon as well. >> Target for this feature to show up in Linus' tree is 3.9-rc1. >> Therefore these patches check for 3.9.0 and newer kernels. If such a >> kernel is tried to get loaded via kexec -p, the new memmap= syntax is >used. >> >> Please consider to apply these to the kexec-tools repository. > >Hi Thomas, > >could I check that the status of these patches is still as you describe >above? -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.