On Fri, May 16, 2014 at 7:30 PM, Laszlo Ersek <ler...@redhat.com> wrote:
> On 05/16/14 11:59, Jun Koi wrote: > > > - is it true that dump-guest-memory just write down physical memory > > page, and does not consider the virtual-memory concept? > > No, it isn't. > > Basically, "dump-guest-memory" supports two modes of operation, "paging > enabled" and "paging disabled". > > Many (most?) people dump for the "crash" utility, which is super smart, > and extra paging info is not needed. For "crash" we just dump the > guest-phys memory ranges the way the guest sees them, and that's it; > "crash" figures out everything from that. > > If you want to use "gdb" rather than "crash", or need the guest-virtual > addresses in the ELF vmcore for some other reason, then you should > invoke "dump-guest-memory" with paging enabled. > > Enter "help dump-guest-memory" at the qemu monitor prompt, and look for > the "-p" option. > so i suppose this works for all kind of OS in guest VM, not only Linux guest? thanks so much, Jun
