linux-kernel - [PATCH 3/7] Documentation/kdump/kdump.txt: Remove /dev/oldmem description

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 25 May 2013 11:27:23 +0800
From:	Zhang Yanfei <zhangyanfei.yes@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>, Simon Horman <horms@...ge.net.au>
CC:	"kexec@...ts.infradead.org" <kexec@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/7] Documentation/kdump/kdump.txt: Remove /dev/oldmem description

From: Zhang Yanfei <zhangyanfei@...fujitsu.com>

Signed-off-by: Zhang Yanfei <zhangyanfei@...fujitsu.com>
Cc: Vivek Goyal <vgoyal@...hat.com>
---
 Documentation/kdump/kdump.txt |   31 ++++++-------------------------
 1 files changed, 6 insertions(+), 25 deletions(-)

diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 9c7fd98..bec123e 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -47,19 +47,12 @@ parameter. Optionally the size of the ELF header can also be passed
 when using the elfcorehdr=[size[KMG]@]offset[KMG] syntax.
 
 
-With the dump-capture kernel, you can access the memory image, or "old
-memory," in two ways:
-
-- Through a /dev/oldmem device interface. A capture utility can read the
-  device file and write out the memory in raw format. This is a raw dump
-  of memory. Analysis and capture tools must be intelligent enough to
-  determine where to look for the right information.
-
-- Through /proc/vmcore. This exports the dump as an ELF-format file that
-  you can write out using file copy commands such as cp or scp. Further,
-  you can use analysis tools such as the GNU Debugger (GDB) and the Crash
-  tool to debug the dump file. This method ensures that the dump pages are
-  correctly ordered.
+With the dump-capture kernel, you can access the memory image through
+/proc/vmcore. This exports the dump as an ELF-format file that you can
+write out using file copy commands such as cp or scp. Further, you can
+use analysis tools such as the GNU Debugger (GDB) and the Crash tool to
+debug the dump file. This method ensures that the dump pages are correctly
+ordered.
 
 
 Setup and Installation
@@ -423,18 +416,6 @@ the following command:
 
    cp /proc/vmcore <dump-file>
 
-You can also access dumped memory as a /dev/oldmem device for a linear
-and raw view. To create the device, use the following command:
-
-    mknod /dev/oldmem c 1 12
-
-Use the dd command with suitable options for count, bs, and skip to
-access specific portions of the dump.
-
-To see the entire memory, use the following command:
-
-   dd if=/dev/oldmem of=oldmem.001
-
 
 Analysis
 ========
-- 
1.7.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/