On Fri, Jul 27, 2007 at 06:12:43PM +0900, Ken'ichi Ohmichi wrote: > > 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. > Hey, this is too late to take into 5.1, but I'll hapily take it for 5.2 Neil > > 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 -- /*************************************************** *Neil Horman *Software Engineer *Red Hat, Inc. *nhorman at redhat.com *gpg keyid: 1024D / 0x92A74FA1 *http://pgp.mit.edu ***************************************************/
