Re: [Fastboot] RE: [BROKEN PATCH] kexec for ia64

Khalid Aziz
2004-08-05T19:18:32Z

On Thu, 2004-08-05 at 11:05, Eric W. Biederman wrote:
> Hmm. Your mailer did not add any references lines.
>
>
> "Luck, Tony" <tony.luck@intel.com> writes:
>
> > Jesse Barnes wrote:
> > >With the addition of some ACPI tables and such. I don't think
> > >those are freed by the kernel right now though, so it should
> > >be pretty easy to point at the originals from the newly kexec'd
> > >kernel, or make copies.
> >
> > The "trim_bottom" and "trim_top" functions currently modify
> > the memory map in place. But this would only make a difference
> > if you tried to kexec a kernel with a smaller granule size than
> > the originally running kernel, and even then would only
> > result in missing seeing some memory that you might have been
> > able to use.
>
> On x86 and x86-64 we can recover the memory map from /proc/iomem.
>
> Does that work on ia64? Can that be fixed to work on ia64?

No, it does not work on ia64. Once I have basic code in place to get
somewhat working kexec on ia64, I am considering looking into fixing
/proc/iomem.

>
> All of that information needs to get exported to user space so
> /sbin/kexec can pass it to the new kernel.
>
> Eric

--
Khalid

==================================
Khalid Aziz Linux and Open Source Lab
(970)898-9214 Hewlett-Packard
khalid_aziz@hp.com Fort Collins, CO

"The Linux kernel is subject to relentless development"
- Alessandro Rubini