From: zhouzhouyi@gmail.com
To: kexec@lists.infradead.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, vgoyal@redhat.com,
yizhouzhou@ict.ac.cn
Subject: [PATCH 1/1 v1] the recommended crash memory reservation is too small for x86_64.
Date: Mon, 25 Mar 2013 18:56:49 +0800 [thread overview]
Message-ID: <1364209009-11592-1-git-send-email-zhouzhouyi@gmail.com> (raw)
From: root <root@zzy-Lenovo.(none)>
On Documentation/kdump/kdump.txt, section Boot into System Kernel: On x86 and x86_64, use
"crashkernel=64M@16M", but some OSes like ubuntu 12.10 use ram fs larger than 64M, so in these cases the
memory reserved for crashkernel should be at least 128M.
Signed-off-by: Zhouyi Zhou <yizhouzhou@ict.ac.cn>
---
Documentation/kdump/kdump.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 13f1aa0..1e850e0 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -290,7 +290,9 @@ Boot into System Kernel
"crashkernel=64M@16M" tells the system kernel to reserve 64 MB of memory
starting at physical address 0x01000000 (16MB) for the dump-capture kernel.
- On x86 and x86_64, use "crashkernel=64M@16M".
+ On x86 and x86_64, use "crashkernel=64M@16M" (some OSes use init ram fs larger
+than 64M, for example ubuntu-12.10, use crashkernel=128M@16M instead, or dump-capture
+kernel will out of memory).
On ppc64, use "crashkernel=128M@32M".
--
1.7.10.4
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next reply other threads:[~2013-03-25 10:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-25 10:56 zhouzhouyi [this message]
2013-03-25 11:29 ` [PATCH 1/1 v1] the recommended crash memory reservation is too small for x86_64 WANG Chao
2013-03-25 11:52 ` 周洲仪
2013-03-26 3:56 ` WANG Chao
2013-03-27 12:28 ` Simon Horman
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