On 01/11/2013 01:09 PM, Yinghai Lu wrote: > On Fri, Jan 11, 2013 at 12:06 PM, H. Peter Anvin <hpa at zytor.com> wrote: >> On 01/11/2013 11:59 AM, Yinghai Lu wrote: >>> On Fri, Jan 11, 2013 at 10:24 AM, Thomas Renninger <trenn at suse.de> wrote: >>>>> We may need to keep exactmap intact. >>>> Why? >>>> Kexec/kdump should have been the only user? >>>> If older/current kexec calls still add ACPI maps via memmap=X#Y, >>>> they should already exist in the original e820 map and fall off or >>>> get glued to one region if (wrongly) overlapping via sanitize_map. >>> >>> No, kexec/kdump is not the only user for memmap=exactmap. >>> >> >> Who is using it then, since you seem to know? > > http://forums.gentoo.org/viewtopic-t-487476-highlight-proliant.html > > http://forums.fedoraforum.org/archive/index.php/t-225347.html > Hm... both of those seem to be someone trying memmap=exactmap to hack around a problem which really was elsewhere, with a different solution. -hpa
