From: Mel Gorman <mel@csn.ul.ie>
To: linux-mm@kvack.org
Cc: Mel Gorman <mel@csn.ul.ie>,
linux-kernel@vger.kernel.org, lhms-devel@lists.sourceforge.net
Subject: [PATCH 7/9] Add documentation for extra boot parameters
Date: Thu, 26 Jan 2006 18:45:25 +0000 (GMT) [thread overview]
Message-ID: <20060126184525.8550.50440.sendpatchset@skynet.csn.ul.ie> (raw)
In-Reply-To: <20060126184305.8550.94358.sendpatchset@skynet.csn.ul.ie>
Once all patches are applied, two new command-line parameters exist -
kernelcore and noeasyrclm. This patch adds the necessary documentation.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.16-rc1-mm3-107_hugetlb_use_easyrclm/Documentation/kernel-parameters.txt linux-2.6.16-rc1-mm3-108_docs/Documentation/kernel-parameters.txt
--- linux-2.6.16-rc1-mm3-107_hugetlb_use_easyrclm/Documentation/kernel-parameters.txt 2006-01-25 13:42:42.000000000 +0000
+++ linux-2.6.16-rc1-mm3-108_docs/Documentation/kernel-parameters.txt 2006-01-26 18:14:24.000000000 +0000
@@ -702,6 +702,16 @@ running once the system is up.
js= [HW,JOY] Analog joystick
See Documentation/input/joystick.txt.
+ kernelcore=nn[KMG] [KNL,IA-32,PPC] On the x86 and ppc64, this
+ parameter specifies the amount of memory usable
+ by the kernel and places the rest in an EasyRclm
+ zone. The EasyRclm zone is used for the allocation
+ of pages on behalf of a process and for HugeTLB
+ pages. On ppc64, it is likely that memory sections
+ on this zone can be offlined. Note that allocations
+ like PTEs-from-HighMem still use the HighMem zone
+ if it exists, and the Normal zone if it does not.
+
keepinitrd [HW,ARM]
kstack=N [IA-32,X86-64] Print N words from the kernel stack
@@ -1004,6 +1014,16 @@ running once the system is up.
nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
+ noeasyrclm [IA-32,PPC] If kernelcore= is specified, the default
+ zone to add memory to for IA-32 and PPC is EasyRclm. If
+ this is undesirable, noeasyrclm can be specified to
+ force the adding of memory on IA-32 to ZONE_HIGHMEM
+ and to ZONE_DMA on PPC. This is desirable when the
+ EasyRclm zone is setup as a "soft" area for HugeTLB
+ pages to be allocated from to give the chance for
+ administrators to grow the reserved number of Huge
+ pages when the system has been running for some time.
+
noexec [IA-64]
noexec [IA-32,X86-64]
next prev parent reply other threads:[~2006-01-26 18:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-26 18:43 [PATCH 0/9] Reducing fragmentation using zones v4 Mel Gorman
2006-01-26 18:43 ` [PATCH 1/9] Add __GFP_EASYRCLM flag and update callers Mel Gorman
2006-01-26 18:43 ` [PATCH 2/9] Create the ZONE_EASYRCLM zone Mel Gorman
2006-01-26 18:44 ` [PATCH 3/9] x86 - Specify amount of kernel memory at boot time Mel Gorman
2006-01-26 18:44 ` [PATCH 4/9] ppc64 " Mel Gorman
2006-02-07 21:06 ` [Lhms-devel] " Joel Schopp
2006-02-08 10:23 ` Mel Gorman
2006-01-26 18:44 ` [PATCH 5/9] At boot, determine what zone memory will hot-add to Mel Gorman
2006-01-26 18:45 ` [PATCH 6/9] Allow HugeTLB allocations to use ZONE_EASYRCLM Mel Gorman
2006-01-26 18:45 ` Mel Gorman [this message]
2006-01-26 18:45 ` [PATCH 8/9] ForTesting - Prevent OOM killer firing for high-order allocations Mel Gorman
2006-01-26 18:46 ` [PATCH 9/9] ForTesting - Drain the per-cpu caches with high order allocations fail Mel Gorman
2006-01-27 0:29 ` [PATCH 0/9] Reducing fragmentation using zones v4 KAMEZAWA Hiroyuki
2006-01-27 0:41 ` [Lhms-devel] " KAMEZAWA Hiroyuki
2006-01-27 10:29 ` Mel Gorman
2006-01-27 11:19 ` KAMEZAWA Hiroyuki
2006-01-27 11:42 ` Mel Gorman
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