Hi,
makedumpfile version 1.1.5 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 Add a new feature that extracting the part of xen hypervisor and
domain-0 from /proc/vmcore. In most cases under xen environment,
it is enough to analyze a cause of system crash.
The patch was provided by Itsuro Oda.
Usage:
# makedumpfile -E --xen-syms xen-syms /proc/vmcore dumpfile
o Add a new option '-f' to overwrite existing dumpfile.
The patch was provided by Bernhard Walle.
o Add a new option '--message-level "message-level"'.
A user can specify multiple message types by setting the sum of each
message type for "message-level". The default value is '7' (Print
the progress indicator, common messages, and error messages).
0: Print nothing.
1: Print the progress indicator.
2: Print common messages.
4: Print error messages.
8: Print debugging messages.
o Fix the problem that makedumpfile complains about overlapping memory
segments. On some machines (ia64, discontigmem, and specific machine),
one pglist_data has overlapping memory segments with other nodes.
The existing makedumpfile complains about them, and it fails.
To fix the problem, overlapping memory segments is separated by
node_memblk. The idea was provided by Bernhard Walle.
o Rename makedumpfile's config file to "vmcoreinfo file".
http://lists.infradead.org/pipermail/kexec/2007-July/000349.html
o Change the method for getting the kernel's OSRELEASE if generating
a vmcoreinfo file. A new makedumpfile gets it from a vmlinux file.
http://lists.infradead.org/pipermail/kexec/2007-July/000319.html
o Some cleanups
- Cleanup the linux-version checking method.
The patch was provided by Neil Horman.
- Cleanup README for the building problem.
- Cleanup the method for getting the offset of page.mapping.
- Cleanup the method for reading a vmcoreinfo file.
You can download the latest makedumpfile(ver. 1.1.5) 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-1.1.5.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
Thanks
Ken'ichi Ohmichi
