Re: [PATCH v12 9/9] kdump: update Documentation about crashkernel

On Tue, Oct 06, 2020 at 10:10:54AM +0800, chenzhou wrote: > On 2020/10/6 1:19, Catalin Marinas wrote: > > On Mon, Sep 07, 2020 at 09:47:45PM +0800, Chen Zhou wrote: > >> diff --git a/Documentation/admin-guide/kdump/kdump.rst > >> b/Documentation/admin-guide/kdump/kdump.rst > >> index

Re: [PATCH v12 9/9] kdump: update Documentation about crashkernel

Hi Catalin, On 2020/10/6 1:19, Catalin Marinas wrote: > On Mon, Sep 07, 2020 at 09:47:45PM +0800, Chen Zhou wrote: >> diff --git a/Documentation/admin-guide/kdump/kdump.rst >> b/Documentation/admin-guide/kdump/kdump.rst >> index 2da65fef2a1c..549611abc581 100644 >> ---

Re: [PATCH v12 9/9] kdump: update Documentation about crashkernel

On Mon, Sep 07, 2020 at 09:47:45PM +0800, Chen Zhou wrote: > diff --git a/Documentation/admin-guide/kdump/kdump.rst > b/Documentation/admin-guide/kdump/kdump.rst > index 2da65fef2a1c..549611abc581 100644 > --- a/Documentation/admin-guide/kdump/kdump.rst > +++

[PATCH v12 9/9] kdump: update Documentation about crashkernel

For arm64, the behavior of crashkernel=X has been changed, which tries low allocation in DMA zone, and fall back to high allocation if it fails. We can also use "crashkernel=X,high" to select a high region above DMA zone, which also tries to allocate at least 256M low memory in DMA zone