makedumpfile-1.3.0: Support i386 CONFIG_VMSPLIT_1G kernel
Ken'ichi Ohmichi
oomichi at mxs.nes.nec.co.jp
Fri Oct 10 02:02:33 EDT 2008
Hi,
makedumpfile version 1.3.0 is released.
Your comments/patches are welcome.
Changelog:
o New feature
- Support i386 CONFIG_VMSPLIT_1G kernel.
- Add compiling options for calling lseek64() surely.
- Use gzip for manpage compression. (Bernhard Walle)
o Bugfix
- Fix the buffer handling problem for reading struct page.
- Fix readmem to read each page.
- Don't write undefined values to disk. (Bernhard Walle)
- Fix memory leaks. (Bernhard Walle)
- Fix/Add error messages for debugging.
- Fix the type of file_offset.
- Fix the error handling of kvtop_xen().
- Fix the comment for some values in page.flags.
o Code Cleanup
- Cleanup: Separate xen's paddr_to_offset from linux's one.
- Cleanup: Use the existing macros in kvtop_xen_x86().
- Cleanup: Delete unnecessary description.
- Update copyright date.
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
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