----- Original Message ----- > > Applies to the development branch as of 10/13/2015. > > This patch adds a -e option to makedumpfile. > The -e option excludes kernel pages that contain nothing but kernel page > structures for pages that are not being included in the dump. ... [ cut ] ... > > The only disadvantage is that various options of the crash 'kmem' command (that > walk lists of page structures) will not work. > Version 7.0.9 of crash is already patched to issue a warning about such commands > when the dump is flagged DUMP_DH_EXCLUDED_VMEMMAP. Just to clarify -- crash-7.0.9 added support for printing warnings if DUMP_DH_COMPRESSED_INCOMPLETE is set in compressed kdump dumpfile headers, (and DUMP_ELF_INCOMPLETE flags in kdump ELF headers). But it will not issue any warnings w/respect to missing page strucures. You're going to file an associated DUMP_DH_EXCLUDED_VMEMMAP patch to the crash-utility mailing list if/when this makedumpfile patch gets accepted, correct? Dave
