Hi,
makedumpfile version 1.4.1 is released.
Your comments/patches are welcome.
Daisuke Hatayama made a lot of effort to implement "Fujitsu stand-alone
dump format support" feature. Thanks, Hatayama-san.
o The explanation about a new feature "Fujitsu stand-alone dump format support":
Fujitsu stand-alone dump (sadump) format is the original format used by Fujitsu.
The sadump format is similar to diskdump format.
This feature convert sadump-related format into kdump-compressed format.
When converting sadump-related format, -x option is definitely necessary.
Because, VMCORE created by sadump has NO debug information including VMCOREINFO.
This feature tested on only x86 and x86_64.
Ex. Convert multiple VMCOREs in a single commandline input.
# makedumpfile [OPTION] -x VMLINUX --diskset=VMCORE1 --diskset=VMCORE2 DUMPFILE
Changelog:
o New feature
Commits related to "Fujitsu stand-alone dump format support"
- [PATCH v2 01/14] Add sadump module header file (by HATAYAMA Daisuke) c00d65c
- [PATCH v2 02/14] Extend DumpInfo structure (by HATAYAMA Daisuke) 9a068b5
- [PATCH v2 03/14] Implement command-line processing (by HATAYAMA Daisuke) 3964c98
- [PATCH v2 04/14] Verify and read VMCORE(s) in sadump-related formats (by HATAYAMA Daisuke) ff19f9f
- [PATCH v2 05/14] Export helpers for bitmap table handling (by HATAYAMA Daisuke) eda6066
- [PATCH v2 06/14] Initialize internal data according to sadump-related formats (by HATAYAMA Daisuke) 0819b77
- [PATCH v2 07/14] Initialize debug information for ELF note extraction (by HATAYAMA Daisuke) 7890646
- [PATCH v2 08/14] Implement readmem() interface on sadump-related formats (by HATAYAMA Daisuke) 9c0e854
- [PATCH v2 09/14] Estimate phys_base based on linux_banner position (by HATAYAMA Daisuke) 5054dd8
- [PATCH v2 10/14] Generate and save VMCOREINFO and ELF note information (by HATAYAMA Daisuke) ef2832f
- [PATCH v2 11/14] Process CPUs based on online ones (by HATAYAMA Daisuke) 13dd70a
- [PATCH v2 12/14] Read kexec backup region (by HATAYAMA Daisuke) fc655b4
- [PATCH v2 13/14] Add description of sadump-related formats in usage information (by HATAYAMA Daisuke) d6259de
- [PATCH v2 14/14] Add description of sadump-related formats in manual page (by HATAYAMA Daisuke) c28ac15
o Bugfix
- [PATCH] Fix off-by-one bug in page_to_pfn() (by Wen Congyang) 8ef4f34
- [PATCH] s390x: Obtain the vmalloc_start value from high_memory for s390x arch. (by Mahesh Salgaonkar) ff1e067
- [PATCH] Fix spelling mistakes in error messages. (by Atsushi Kumagai) a7282dd
- [PATCH] Fix man page section number of makedumpfile.conf. (by Atsushi Kumagai) 98af7d5
o Code Cleanup
- [PATCH] Cleanup: Fix description of DUMP levels. (by Atsushi Kumagai) 101c563
(Based on "[PATCH]: fix makedumpfile cache page exclusion dump levels." by Thayumanavar S)
- [PATCH] Cleanup: Add description of analysis tools in man page. (by Atsushi Kumagai) 2df7a4a
- [PATCH] Cleanup: Convert multiple spaces to tabs. (by Atsushi Kumagai) 3bcc1d5
- [PATCH] Cleanup: Delete unnecessary include "elf_info.h". (by Atsushi Kumagai) a296d8e
- [PATCH] Cleanup: Fix some comments for "#endif". (by Atsushi Kumagai) c06b20e
Explanation of makedumpfile:
To shorten the size of the dumpfile and the time of creating the
dumpfile, makedumpfile copies only the necessary pages for analysis
to the dumpfile from /proc/vmcore. You can specify the kind of
unnecessary pages with dump_level. If you want to shorten the size
further, enable the compression of the page data.
Download:
You can download the latest makedumpfile from the following URL.
Details of the change are written on the git page of the following site.
https://sourceforge.net/projects/makedumpfile/
Method of installation:
You can compile the makedumpfile command as follows;
1. "tar -zxvf makedumpfile-x.y.z.tar.gz"
2. "cd makedumpfile-x.y.z"
3. "make; make install"
Usage:
makedumpfile [-c] [-E] [-d dump_level] [-x vmlinux] dump_mem dump_file
Example:
If you want to exclude pages filled by zero, cache pages, user pages
and free pages and to enable compression, please execute the following
command.
# makedumpfile -c -d 31 -x vmlinux /proc/vmcore dumpfile
Thanks
Atsushi Kumagai
