From: Yinghai Lu <yinghai@kernel.org>
To: chen tang <imtangchen@gmail.com>
Cc: Zhang Yanfei <zhangyanfei.yes@gmail.com>,
Toshi Kani <toshi.kani@hp.com>, Tejun Heo <tj@kernel.org>,
Tang Chen <tangchen@cn.fujitsu.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Bob Moore <robert.moore@intel.com>, Lv Zheng <lv.zheng@intel.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>, Len Brown <lenb@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Renninger <trenn@suse.de>,
Jiang Liu <jiang.liu@huawei.com>,
Wen Congyang <wency@cn.fujitsu.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
Taku Izumi <izumi.taku@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
"mina86@mina86.com" <mina86@mina86.com>,
"gong.chen@linux.intel.com" <gong.chen@linux.intel.com>,
Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>,
"lwoodman@redhat.com" <lwoodman@redhat.com>,
Rik van Riel <riel@redhat.com>,
"jweiner@redhat.com" <jweiner@redhat.com>,
Prarit Bhargava <prarit@redhat.com>,
Zhang Yanfei <zhangyanfei@cn.fujitsu.com>,
"yanghy@cn.fujitsu.com" <yanghy@cn.fujitsu.com>,
the arch/x86 maintainers <x86@kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux MM <linux-mm@kvack.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier.
Date: Fri, 23 Aug 2013 14:08:06 -0700 [thread overview]
Message-ID: <CAE9FiQU0n++wSR2Xmv06DGGie0zemwrVQr9Ha7Qv+88DX3wbdA@mail.gmail.com> (raw)
In-Reply-To: <CAD11hGxase=mk_pYEvtYyrHTWb=u5D4XX0PJT8Ah6owtPQSRxg@mail.gmail.com>
> because we have found and mapped all the memory in the system at early time.
>
> But it is not easy to solve.
> 1. We still have to know how much memory and cpus the boot PXM has.
> How could we know that ? SRAT again ?
yes, need to parse numa info early, and only use RAM for PXM(X) at first.
> 2. The boot PXM could have little memory, and we meet the kexec and kdump
> problem again.
could extend to have more PXM at first, like boot pxm mask.
> 3. I'm not quite sure is there any important benefit that the kernel
> initializes all
> the memory at beginning ?
>
> And also, the memory hotplug schedule is very tough for us. We really want the
> movablenode functionality could be available soon. And this idea could
> be a long way to go. So I also think this would be the next step.
uh?
I already tried best to help. Even spent time to produce patchset
to separate acpi_override find/copy, and numa_info parse early
and put page tables on local nodes.
Let me know what else I could help.
Thanks
Yinghai
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next prev parent reply other threads:[~2013-08-23 21:08 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-21 10:15 Tang Chen
2013-08-21 10:15 ` [PATCH 1/8] x86: Make get_ramdisk_{image|size}() global Tang Chen
2013-08-21 10:15 ` [PATCH 2/8] x86, microcode: Use get_ramdisk_{image|size}() in microcode handling Tang Chen
2013-08-21 10:15 ` [PATCH 3/8] x86, acpi: Move table_sigs[] to stack Tang Chen
2013-08-21 10:15 ` [PATCH 4/8] x86, acpi, brk: Extend BRK 256KB to store acpi override tables Tang Chen
2013-08-21 10:15 ` [PATCH 5/8] x86, brk: Make extend_brk() available with va/pa Tang Chen
2013-08-21 12:26 ` Konrad Rzeszutek Wilk
2013-08-21 12:35 ` H. Peter Anvin
2013-08-21 14:42 ` Konrad Rzeszutek Wilk
2013-08-21 15:04 ` H. Peter Anvin
2013-08-21 10:15 ` [PATCH 6/8] x86, acpi: Make acpi_initrd_override() available with va or pa Tang Chen
2013-08-21 10:15 ` [PATCH 7/8] x86, acpi, brk: Make early_alloc_acpi_override_tables_buf() available with va/pa Tang Chen
2013-08-21 10:15 ` [PATCH 8/8] x86, acpi: Do acpi_initrd_override() earlier in head_32.S/head64.c Tang Chen
2013-08-21 10:42 ` [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier Tang Chen
2013-08-21 13:06 ` Tejun Heo
2013-08-21 15:00 ` Zhang Yanfei
2013-08-21 15:36 ` Tejun Heo
2013-08-21 19:31 ` Toshi Kani
2013-08-21 19:54 ` Tejun Heo
2013-08-21 20:29 ` Toshi Kani
2013-08-21 20:40 ` Tejun Heo
2013-08-21 22:36 ` Toshi Kani
2013-08-22 3:32 ` Tejun Heo
2013-08-22 15:52 ` Toshi Kani
2013-08-22 18:31 ` Tejun Heo
2013-08-22 19:39 ` Zhang Yanfei
2013-08-22 19:45 ` Tejun Heo
2013-08-22 20:11 ` Toshi Kani
2013-08-22 20:21 ` Tejun Heo
2013-08-22 20:35 ` Tejun Heo
2013-08-22 21:06 ` Toshi Kani
2013-08-22 21:21 ` Tejun Heo
2013-08-22 22:17 ` Toshi Kani
2013-08-23 13:04 ` Tejun Heo
2013-08-23 13:08 ` H. Peter Anvin
2013-08-23 14:19 ` Tejun Heo
2013-08-23 14:24 ` H. Peter Anvin
2013-08-23 14:35 ` Tejun Heo
2013-08-23 14:57 ` Tejun Heo
2013-08-23 16:14 ` Toshi Kani
2013-08-23 16:24 ` Tejun Heo
2013-08-23 17:13 ` Toshi Kani
2013-08-23 17:29 ` Zhang Yanfei
2013-08-23 16:54 ` Zhang Yanfei
2013-08-23 18:18 ` Yinghai Lu
2013-08-23 18:25 ` H. Peter Anvin
2013-08-23 20:33 ` chen tang
2013-08-23 21:08 ` Yinghai Lu [this message]
2013-08-23 22:27 ` chen tang
2013-08-23 18:29 ` Toshi Kani
2013-08-23 21:37 ` chen tang
2013-08-23 21:52 ` Tejun Heo
2013-08-23 23:56 ` chen tang
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