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Subject: Re: [PATCH] kdump: Fix for boot problems on SMP
From: Badari Pulavarty <pbadari@us.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Akinobu Mita <amgta@yacht.ocn.ne.jp>, hari@in.ibm.com,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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Date: 19 Nov 2004 15:29:04 -0800
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Hi Andrew,

I haven't tested it yet on any of my machines (due to the hang). 
I am about to give it a try. But my understanding (please update 
me if I am wrong) is,

1) DISCONTIG_MEM support is not working yet - so i can't use any
of my NUMA boxes.

2) AMD64 is not supported - i can't use my Opteron machine.

3) ppc is not supported - i can't use Power3 and Power4 machines.

So, I can only try it on non-NUMA i386 smp boxes. I have few of
those to try. I will give an update next week on my testing.

Thanks,
Badari


On Fri, 2004-11-19 at 15:30, Andrew Morton wrote:
> Akinobu Mita <amgta@yacht.ocn.ne.jp> wrote:
> >
> > On Thursday 18 November 2004 23:08, Hariprasad Nellitheertha wrote:
> > 
> > > There was a buggy (and unnecessary) reserve_bootmem call in the kdump
> > > call which was causing hangs during early on some SMP machines. The
> > > attached patch removes that.
> > 
> > Thanks! I also had the same problem.
> 
> So..  How is the crashdump code working now?  I haven't heard from anyone
> who is using it and I haven't gotten onto testing it myself.
> 
> Do we have any feeling for its success rate on various machines, and on its
> ease of use?
> 
>