[Crash-utility] Fw: [Fastboot] makedumpfile-1.1.3: linux-2.6.21 support

[Ken'ichi Ohmichi]

Hi all,

Today, I released a new makedumpfile related to the following thread.

  Re: [Crash-utility] handling missing kdump pages in diskdump format

Thank you for the cooperations.


Thanks
Ken'ichi Ohmichi


To: fastboot-ml <fastboot at lists.linux-foundation.org>
From: "Ken'ichi Ohmichi" <oomichi at mxs.nes.nec.co.jp>
Date: Fri, 13 Apr 2007 14:59:01 +0900
Cc: Dave Anderson <anderson at redhat.com>
Subject: [Fastboot] makedumpfile-1.1.3: linux-2.6.21 support


Hi.

makedumpfile version 1.1.3 is released.
Please test it. Your opinions/comments are welcome.

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.

Changelog:
o linux-2.6.21 is supported.
  On linux-2.6.21, a member free_pages of struct zone has been removed.
  Then, the number of free pages is taken from zone.vm_stat[0] if a
  member free_pages of struct zone is not present.
  The patch was provided by Sachin P. Sant, Thanks.

o The descriptors of the excluded zero-filled pages are changed so that
  the crash utility (v4.0-3.22, or later) can distinguish between the
  excluded zero-filled pages and other excluded pages.
  If the crash utility accesses the excluded zero-filled page, it returns
  zero-filled page. If accessing other excluded page, it displays the
  error message and fails.
  The patch was provided by Bob Montgomery, Thanks.

o A member "dump_level" is added into struct kdump_sub_header so that
  the crash utility (v4.0-3.22, or later) can display the dump_level
  in case of kdump-compressed format.


You can download the latest makedumpfile(ver. 1.1.3) 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-1.1.3.tar.gz"
  2. "cd makedumpfile"
  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

Todo:
  - ia64 DISCONTIGMEM support

Thanks
Ken'ichi Ohmichi
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