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From: ebiederm@xmission.com (Eric W. Biederman)
To: Yinghai Lu <yinghai@kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Jacob Shin <jacob.shin@amd.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
	"H. Peter Anvin" <hpa@zytor.com>, Tejun Heo <tj@kernel.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	kexec@lists.infradead.org, Cliff Wickman <cpw@sgi.com>
Subject: 896MB address limit (was: Re: [PATCH 04/13] x86, mm: Revert back good_end setting for 64bit)
Date: Fri, 05 Oct 2012 15:01:26 -0700	[thread overview]
Message-ID: <87obkgpoi1.fsf_-_@xmission.com> (raw)
In-Reply-To: <CAE9FiQUW3uvkooBxqEdSxV7T8h4=5qonoLbJCPGT0kTceqSNRw@mail.gmail.com> (Yinghai Lu's message of "Fri, 5 Oct 2012 14:43:57 -0700")


I am going to see about merging these two threads.

Yinghai Lu <yinghai@kernel.org> writes:

> On Fri, Oct 5, 2012 at 2:41 PM, Eric W. Biederman <ebiederm@xmission.com> wrote:
>> Yinghai Lu <yinghai@kernel.org> writes:
>>
>>> with bzImage or vmlinux?
>>
>> bzImage I presume.  Certainly the bzImage has lost it's 896M limit,
>> which is where ultimiately the 896M limite came from.
>
> they are using updated kexec-tools ?
>
> last time when i checked the code for kexec-tools
> found the 896M problem was from kexec-tools bzimage support.

Cliff Wickman was the guy at sgi running the tests.

To the best of my knowledge he was runing an up to date kexec-tools and
was loading a bzImage.  Of course his initial reaction was where did the
896M limit come from, as he had just updated to a kernel with the limit
a few weeks ago.

YH please talk to Cliff directly.

Eric


  reply	other threads:[~2012-10-05 22:01 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-30  7:57 [PATCH -v4 00/13] x86, mm: init_memory_mapping cleanup Yinghai Lu
2012-09-30  7:57 ` [PATCH 01/13] x86, mm: Add global page_size_mask and probe one time only Yinghai Lu
2012-09-30  7:57 ` [PATCH 02/13] x86, mm: Split out split_mem_range from init_memory_mapping Yinghai Lu
2012-09-30  7:57 ` [PATCH 03/13] x86, mm: Move init_memory_mapping calling out of setup.c Yinghai Lu
2012-09-30  7:57 ` [PATCH 04/13] x86, mm: Revert back good_end setting for 64bit Yinghai Lu
2012-10-01 11:00   ` Stefano Stabellini
2012-10-03 16:51     ` Jacob Shin
2012-10-03 18:34       ` H. Peter Anvin
2012-10-04 13:56       ` Konrad Rzeszutek Wilk
2012-10-04 21:52         ` H. Peter Anvin
2012-10-04 16:19       ` Yinghai Lu
2012-10-04 16:46         ` Konrad Rzeszutek Wilk
2012-10-04 21:29           ` Yinghai Lu
2012-10-05 21:04             ` Eric W. Biederman
2012-10-05 21:19               ` Yinghai Lu
2012-10-05 21:32                 ` Eric W. Biederman
2012-10-05 21:37                   ` Yinghai Lu
2012-10-05 21:41                     ` Eric W. Biederman
2012-10-05 21:43                       ` Yinghai Lu
2012-10-05 22:01                         ` Eric W. Biederman [this message]
2012-10-06  0:18                       ` H. Peter Anvin
2012-10-06  0:45                         ` Eric W. Biederman
2012-10-06  1:02                           ` H. Peter Anvin
2012-10-06  0:17                   ` H. Peter Anvin
2012-10-06  0:28                     ` Eric W. Biederman
2012-10-06  0:36                       ` H. Peter Anvin
2012-10-04 15:57     ` Yinghai Lu
2012-10-04 16:45       ` Konrad Rzeszutek Wilk
2012-10-04 21:21         ` Yinghai Lu
2012-10-04 21:40           ` Yinghai Lu
2012-10-04 21:41             ` H. Peter Anvin
2012-10-04 21:46               ` Yinghai Lu
2012-10-04 21:54                 ` H. Peter Anvin
2012-10-05  7:46                   ` Yinghai Lu
2012-10-05 11:27                     ` Stefano Stabellini
2012-10-05 14:58                       ` Yinghai Lu
2012-10-06  7:44                         ` [PATCH 0/3] x86: pre mapping page table to make xen happy Yinghai Lu
2012-10-06  7:44                           ` [PATCH 1/3] x86: get early page table from BRK Yinghai Lu
2012-10-08 12:09                             ` Stefano Stabellini
2012-10-06  7:44                           ` [PATCH 2/3] x86, mm: Don't clear page table if next range is ram Yinghai Lu
2012-10-09 15:46                             ` Konrad Rzeszutek Wilk
2012-10-10  1:00                               ` Yinghai Lu
2012-10-10 13:41                                 ` Konrad Rzeszutek Wilk
2012-10-10 14:43                                   ` Yinghai Lu
2012-10-06  7:44                           ` [PATCH 3/3] x86, mm: Remove early_memremap workaround for page table accessing Yinghai Lu
2012-10-09 15:48                             ` Konrad Rzeszutek Wilk
2012-10-08  6:36                         ` [PATCH 04/13] x86, mm: Revert back good_end setting for 64bit Yinghai Lu
2012-10-05 10:47       ` Stefano Stabellini
2012-09-30  7:57 ` [PATCH 05/13] x86, mm: Find early page table buffer altogether Yinghai Lu
2012-09-30  7:57 ` [PATCH 06/13] x86, mm: Separate out calculate_table_space_size() Yinghai Lu
2012-09-30  7:57 ` [PATCH 07/13] x86, mm: Move down two calculate_table_space_size down Yinghai Lu
2012-09-30  7:57 ` [PATCH 08/13] x86, mm: Set memblock initial limit to 1M Yinghai Lu
2012-09-30  7:57 ` [PATCH 09/13] x86: if kernel .text .data .bss are not marked as E820_RAM, complain and fix Yinghai Lu
2012-09-30  7:57 ` [PATCH 10/13] x86: Fixup code testing if a pfn is direct mapped Yinghai Lu
2012-09-30  7:57 ` [PATCH 11/13] x86: Only direct map addresses that are marked as E820_RAM Yinghai Lu
2012-09-30  7:57 ` [PATCH 12/13] x86/mm: calculate_table_space_size based on memory ranges that are being mapped Yinghai Lu
2012-09-30  7:57 ` [PATCH 13/13] x86, mm: Use func pointer to table size calculation and mapping Yinghai Lu

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