From: Wen Congyang <wency@cn.fujitsu.com>
To: rob@landley.net, tglx@linutronix.de,
Ingo Molnar <mingo@redhat.com>,
x86@kernel.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
bhelgaas@google.com, "H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 1/2] doc: update mem= option's spec
Date: Thu, 14 Jun 2012 16:10:48 +0800 [thread overview]
Message-ID: <4FD99C88.2010002@cn.fujitsu.com> (raw)
Current mem= implementation seems buggy because specification and
implementation doesn't match. Current mem= has been working
for many years and it's not buggy, it works as expected. So
we should update the specification.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
---
Documentation/kernel-parameters.txt | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a92c5eb..924b1a4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1471,9 +1471,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
mem=nn[KMG] [KNL,BOOT] Force usage of a specific amount of memory
Amount of memory to be used when the kernel is not able
to see the whole system memory or for test.
- [X86-32] Use together with memmap= to avoid physical
- address space collisions. Without memmap= PCI devices
- could be placed at addresses belonging to unused RAM.
+ [X86-32] Work as limiting max address. Use together
+ with memmap= to avoid physical address space collisions.
+ Without memmap= PCI devices could be placed at addresses
+ belonging to unused RAM.
mem=nopentium [BUGS=X86-32] Disable usage of 4MB pages for kernel
memory.
--
1.7.1
next reply other threads:[~2012-06-14 8:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-14 8:10 Wen Congyang [this message]
2012-06-14 8:12 ` [PATCH 2/2] x86: reimplement mem boot option Wen Congyang
2012-06-28 1:29 ` Wen Congyang
2012-07-17 5:22 ` Wen Congyang
2012-07-18 9:16 ` Ingo Molnar
2012-08-21 8:11 ` [PATCH v2 " Wen Congyang
2012-09-05 9:28 ` Wen Congyang
2012-06-14 20:22 ` [PATCH 1/2] doc: update mem= option's spec Rob Landley
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