* Eric W. Biederman [2008-07-14 11:41]: > > "Yinghai Lu" <yhlu.kernel at gmail.com> writes: > > > On Mon, Jul 14, 2008 at 10:30 AM, Eric W. Biederman > > <ebiederm at xmission.com> wrote: > >> "Yinghai Lu" <yhlu.kernel at gmail.com> writes: > >> > >>> for 64bit, kdump can start from address above 4g with bzImage? > >> > >> I think the boot protocol was properly updated for that, it was in the > >> original drafts. A relocatable kernel with a 64bit entry point. > >> > >> I do know that the 64bit code is ready to do that. > > > > but bzImage for 64bit still use 32bit entries, except kexec could > > uncompress the bzImage like xen domain builder. > > From the standpoint of the crashdump option it doesn't matter. > As the vmlinux supports it, and bzImage could easily support it, > the decompresser is 64bit code. > > If bzImage doesn't support it that is a bug we will have to > correct one of these years when it actually matters. But such checks belong into kexec itself, not into the kernel. Bernhard -- Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development
