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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