Re: [PATCH] Add +~800M crashkernel explaination

From	Robert LeBlanc <robert@leblancnet.us>
Newsgroups	linux.kernel
Subject	Re: [PATCH] Add +~800M crashkernel explaination
Date	2017-01-11 20:40 +0100
Message-ID	<sYwUx-2va-1@gated-at.bofh.it> (permalink)
References	(1 earlier) <sMFTA-2Mu-7@gated-at.bofh.it> <sMIoq-4xC-25@gated-at.bofh.it> <sO877-14y-9@gated-at.bofh.it> <sOm0q-1bT-33@gated-at.bofh.it> <sOr06-6CZ-19@gated-at.bofh.it>
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On Wed, Dec 14, 2016 at 4:17 PM, Xunlei Pang <xpang@redhat.com> wrote:
> As I replied in another post, if you really want to detail the behaviour, should mention
> "crashkernel=size[KMG][@offset[KMG]]" with @offset[KMG] specified explicitly, after
> all, it's handled differently with no upper bound limitation, but doing this may put
> the first kernel at the risk of lacking low memory(some devices require 32bit DMA),
> must use it with care because the kernel will assume users are aware of what they
> are doing and make a successful reservation as long as the given range is available.

crashkernel=1024M@0x10000000

I can't get the offset to work. It seems that it allocates the space
and loads the crash kernel, but I couldn't get it to actually boot
into the crash kernel. Does it work for you? I'm using the 4.9 kernel.

Thanks

----------------
Robert LeBlanc
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Re: [PATCH] Add +~800M crashkernel explaination Robert LeBlanc <robert@leblancnet.us> - 2017-01-11 20:40 +0100
  Re: [PATCH] Add +~800M crashkernel explaination Xunlei Pang <xpang@redhat.com> - 2017-01-12 04:30 +0100

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