Hi.
makedumpfile version 1.1.0 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:
- SSH transporting support
For ssh transporting support, -F and -R options are added.
A panic system sends dump data to a remote host with -F option, and
a remote host re-arranges dump data received to a normal dumpfile
(readable by analysis tools) with -R option.
Example-1:
# makedumpfile -F -cd31 -x vmlinux /proc/vmcore | ssh [EMAIL PROTECTED]
"makedumpfile -R dumpfile"
A perl script makedumpfile-R.pl implements the same function as '-R'
option. Perl script does not depend on architecture, and a lot of
systems have perl command. Even if a remote host does not have the
makedumpfile command, it is possible to transport a dumpfile to a
remote host with running this script.
Example-2:
1. Transport the script.
# scp makedumpfile-R.pl [EMAIL PROTECTED]:makedumpfile-R.pl
2. Transport a dumpfile.
# makedumpfile -F -cd31 -i config /proc/vmcore | ssh [EMAIL PROTECTED]
"./makedumpfile-R.pl dumpfile"
You can download the latest makedumpfile(ver. 1.1.0) 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-1.1.0.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:
- Dumping DISCONTIGMEM kernel
Thanks
Ken'ichi Ohmichi
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