Re: [Qemu-devel] [PATCH v8 00/13] Make 'dump-guest-memory' dump in kdump-compressed format

[Luiz Capitulino <lcapitulino@redhat.com>]

On Tue, 28 Jan 2014 14:21:53 +0800
qiaonuohan <qiaonuohan@cn.fujitsu.com> wrote:

> Hi, all
> 
> The last version is here:
> http://lists.nongnu.org/archive/html/qemu-devel/2014-01/msg00209.html
> 
> Command 'dump-guest-memory' was introduced to dump guest's memory. But the
> vmcore's format is only elf32 or elf64. The message is here:
> http://lists.gnu.org/archive/html/qemu-devel/2012-04/msg03379.html
> 
> Compared with migration, the missing of compression feature means regression
> to 'dump-guest-memory'. So we post these patches to make 'dump-guest-memory' be
> able to dump guest's in kdump-compressed format. Then vmcore can be much
> smaller, and easily to be delivered.
> 
> The kdump-compressed format is *linux specific* *linux standard* crash dump
> format used in kdump framework. The kdump-compressed format is readable only
> with the crash utility, and it can be smaller than the ELF format because of
> the compression support. To get more detailed information about
> kdump-compressed format, please refer to the following URL:
> http://sourceforge.net/projects/makedumpfile/

I did what was requested by Paolo. I applied patches 1 to 12 and will wait
for the rework on patch 13.