[Crash-utility] Fw: [Fastboot] makedumpfile-1.1.3: linux-2.6.21 support
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(a)lists.linux-foundation.org>
From: "Ken'ichi Ohmichi" <oomichi(a)mxs.nes.nec.co.jp>
Date: Fri, 13 Apr 2007 14:59:01 +0900
Cc: Dave Anderson <anderson(a)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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