Hi,
makedumpfile version 1.3.4 is released.
Your comments/patches are welcome.
Changelog:
o New feature
- Support kdump-compressed format for input file. (by Takao Indoh)
A new makedumpfile can read dumpfile which is kdump-compressed format
instead of /proc/vmcore and re-filter it.
- Add dump filtering on an x86_64 xen domain-0.
A new makedumpfile can exclude unnecessary pages (cache pages, user
process data pages, and free pages) on on x86_64 xen domain-0.
- Save utsname data into disk_dump_header.
A new makedumpfile saves utsname data into disk_dump_header.
The crash utility can output the data from a dumpfile by 'help -n'.
- Add linux-2.6.30 - 2.6.31 support.
o Bugfix
- Fix some lacks of free(). (by Minoru Usui)
o Code Cleanup
- Add some comments to code for the readability.
- Remove VERSION_LINUX_2_6_XX.
- Add paddr_to_pfn() and pfn_to_paddr() macros.
- Merge the version information of makedumpfile.
- Merge the PT_NOTE methods of both elf64 and elf32.
- Reduce some indents in exclude_unnecessary_pages().
- Remove unnecessary spaces.
- read_disk_dump_header() and read_kdump_sub_header().
- Use DISKDUMP_HDADER_BLOCKS for the readability.
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 CVS 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
Ken'ichi Ohmichi
