Re: [RFC][PATCH 0/3] kcore: clean up and update ram information properly

Andi Kleen
2009-07-21T11:29:59Z

KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> writes:

> Now, /proc/kcore is built on kclist information which is constructed at boot.
> This kclist includes physical memory range information but not updated at
> memory hotplug. And, this information tends to includes big memory hole.
>
> On the other hand, /proc/iomem includes all physical memory information as
> "System RAM" and this is updated properly and kdump use this, IIUC.
> (I hope all archtecuture stores necessary information...)
>
> This patch tries to build kclist for physical memory(direct map) on
> /proc/iomem info. It's refreshed at open("/proc/kcore",) if necesasry.
>
> This is just a RFC. Any comments are welcome.
>
> [1/3] ... clean up kclist handling.
> [2/3] ... clean up kclist_add()
> [3/3] ... use /proc/iomem information for /proc/kcore.

Great cleanup! Thanks.

The only missing part that we still need is to also include
the kallsyms information, then the core would be even more useful.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.