Re: [Patch] ia64 block_size mismatch issue.

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----- "Robin Holt" <holt@xxxxxxx> wrote:

> On Fri, Jan 09, 2009 at 01:41:27PM -0500, Dave Anderson wrote:
> > 
> > ----- "Robin Holt" <holt@xxxxxxx> wrote:
> > 
> > > On Fri, Jan 09, 2009 at 01:22:39PM -0500, Dave Anderson wrote:
> > > > But for kdump vmcores, it seems that kdump_page_size() needs to
> > > > be made smarter, although I'm not sure where would it get the
> > > > page size -- vmcoreinfo?
> > > 
> > > This was an ia64 kdump created vmcore.  I am a little confused about the
> > > difference, but that little tiny bit, I do know.
> > > 
> > > Robin
> > 
> > Now I'm confused -- if you're looking at an ia64 kdump vmcore, then
> > why did your patch modify the diskdump code? 
> 
> I don't know what I am doing.  I found the code that was executing (love
> that prinktf debugging), looked at what was going wrong, adjusted code
> until it worked, quilt refresh'd and emailed.

No -- you did the right thing.  That patch looks good...

But if you were to create your 64k-page kdump vmcore *uncompressed*,
and then ran crash on a 16k-page host, then kdump_page_size() would
set the page size to 16k, and I'm pretty sure all hell would break
loose.  That's something Bernhard must have addressed in his patch.

Dave

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