Hi all, # I resend this mail, because former mail had a suspicious header. I updated Dan Aloni's patches for adding the feature that embeds vmcoreinfo (information for dump filtering) into a kernel file. This feature frees the restriction that makedumpfile user should install a vmlinux file (including the debugging information). Please test it. Your opinions/comments are welcome. makedumpfile command is the dump filtering feature for kdump. It creates a small dumpfile by filtering unnecessary pages for the analysis. To distinguish unnecessary pages, it needs a vmlinux file including the debugging information. Now, the debugging package becomes a huge file, and it is hard to install it into each system. Then, Dan Aloni created the patch set to embed only necessary information into a kernel binary file, and a vmlinux file including the debugging informaion is not necessary. Dan Aloni's patch: http://lists.infradead.org/pipermail/kexec/2007-July/000303.html Patches: - [1/3] patch for linux-2.6.22. Changelog: * Rename "mkdfinfo" to "vmcoreinfo". * Multi memory models (FLATMEM, DISCONTIGMEM, and SPASEMEM) are supported. * The elf note typedef for vmcoreinfo is added because the original elf note size is limited to 1024. * The generation of the elf note is moved to boot time instead of crash time. - [2/3] patch for kexec-tools-testing-20070330. Changelog: * Rename "mkdfinfo" to "vmcoreinfo". - [3/3] patch for makedumpfile-v1.1.6. Usage: - Run the kernel applied the attached patch as the first kernel. - Preload the second kernel by the kexec-tools applied the attached patch. - Panic and switch to the second kernel. - Get a dumpfile by the makedumpfile applied the attached patch: (Ex.) # makedumpfile -cd31 /proc/vmcore dumpfile Todo: - ia64 support. Translating the virtual address of "vmcoreinfo_note" to the physical address. (kernel-vmcoreinfo-note.patch) - ppc64 support Thanks Ken'ichi Ohmichi
