From: Andrew Morton <akpm@linux-foundation.org>
To: Tang Chen <tangchen@cn.fujitsu.com>
Cc: jiang.liu@huawei.com, wujianguo@huawei.com, hpa@zytor.com,
wency@cn.fujitsu.com, laijs@cn.fujitsu.com,
linfeng@cn.fujitsu.com, yinghai@kernel.org,
isimatu.yasuaki@jp.fujitsu.com, rob@landley.net,
kosaki.motohiro@jp.fujitsu.com, minchan.kim@gmail.com,
mgorman@suse.de, rientjes@google.com, guz.fnst@cn.fujitsu.com,
rusty@rustcorp.com.au, lliubbo@gmail.com,
jaegeuk.hanse@gmail.com, tony.luck@intel.com,
glommer@parallels.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [Bug fix PATCH 0/2] Make whatever node kernel resides in un-hotpluggable.
Date: Wed, 20 Feb 2013 13:36:50 -0800 [thread overview]
Message-ID: <20130220133650.4e0913f3.akpm@linux-foundation.org> (raw)
In-Reply-To: <1361358056-1793-1-git-send-email-tangchen@cn.fujitsu.com>
On Wed, 20 Feb 2013 19:00:54 +0800
Tang Chen <tangchen@cn.fujitsu.com> wrote:
> As mentioned by HPA before, when we are using movablemem_map=acpi, if all the
> memory in SRAT is hotpluggable, then the kernel will have no memory to use, and
> will fail to boot.
>
> Before parsing SRAT, memblock has already reserved some memory in memblock.reserve,
> which is used by the kernel, such as storing the kernel image. We are not able to
> prevent the kernel from using these memory. So, these 2 patches make the node which
> the kernel resides in un-hotpluggable.
I'm planning to roll all these into a single commit:
acpi-memory-hotplug-support-getting-hotplug-info-from-srat.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix-fix-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix-fix-fix-fix.patch
for reasons of tree-cleanliness and to avoid bisection holes. They're
at http://ozlabs.org/~akpm/mmots/broken-out/.
Can you please check the changelog for
acpi-memory-hotplug-support-getting-hotplug-info-from-srat.patch to see
if it needs any updates due to all the fixup patches? If so, please
send me the new changelog, thanks.
Also, please review the changelogging for these:
page_alloc-add-movable_memmap-kernel-parameter.patch
page_alloc-add-movable_memmap-kernel-parameter-fix.patch
page_alloc-add-movable_memmap-kernel-parameter-fix-fix.patch
page_alloc-add-movable_memmap-kernel-parameter-fix-fix-checkpatch-fixes.patch
page_alloc-add-movable_memmap-kernel-parameter-fix-fix-fix.patch
page_alloc-add-movable_memmap-kernel-parameter-rename-movablecore_map-to-movablemem_map.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix-fix-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix-fix-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix-fix-fix-fix.patch
acpi-memory-hotplug-parse-srat-before-memblock-is-ready.patch
acpi-memory-hotplug-parse-srat-before-memblock-is-ready-fix.patch
acpi-memory-hotplug-parse-srat-before-memblock-is-ready-fix-fix.patch
and while we're there, let's pause to admire how prescient I was in
refusing to merge all this into 3.8-rc1 :)
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next prev parent reply other threads:[~2013-02-20 21:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-20 11:00 [Bug fix PATCH 0/2] Make whatever node kernel resides in un-hotpluggable Tang Chen
2013-02-20 11:00 ` [Bug fix PATCH 1/2] acpi, movablemem_map: Exclude memblock.reserved ranges when parsing SRAT Tang Chen
2013-02-20 12:31 ` Tang Chen
2013-02-20 12:35 ` Will Huck
2013-02-20 22:41 ` Luck, Tony
2013-02-21 0:05 ` Will Huck
2013-02-21 0:23 ` Luck, Tony
2013-02-25 7:07 ` Will Huck
2013-02-25 9:01 ` Will Huck
2013-02-25 1:35 ` Will Huck
2013-02-25 3:32 ` Tang Chen
2013-02-25 19:06 ` Luck, Tony
2013-02-20 11:00 ` [Bug fix PATCH 2/2] acpi, movablemem_map: Make whatever nodes the kernel resides in un-hotpluggable Tang Chen
2013-02-23 19:26 ` Rob Landley
2013-02-25 2:54 ` Tang Chen
2013-02-20 21:36 ` Andrew Morton [this message]
2013-02-21 3:03 ` [Bug fix PATCH 0/2] Make whatever node " Tang Chen
2013-02-21 7:03 ` Tang Chen
2013-02-23 19:40 ` Rob Landley
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