Subject: + documentation-kdump-kdumptxt-remove-dev-oldmem-description.patch added to -mm tree
To: zhangyanfei@xxxxxxxxxxxxxx,benh@xxxxxxxxxxxxxxxxxxx,dave@xxxxxxxx,ebiederm@xxxxxxxxxxxx,fenghua.yu@xxxxxxxxx,heiko.carstens@xxxxxxxxxx,holzheu@xxxxxxxxxxxxxxxxxx,hpa@xxxxxxxxx,matt.fleming@xxxxxxxxx,paulus@xxxxxxxxx,ralf@xxxxxxxxxxxxxx,schwidefsky@xxxxxxxxxx,tony.luck@xxxxxxxxx,vgoyal@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 29 May 2013 15:20:22 -0700
The patch titled
Subject: Documentation/kdump/kdump.txt: remove /dev/oldmem description
has been added to the -mm tree. Its filename is
documentation-kdump-kdumptxt-remove-dev-oldmem-description.patch
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------------------------------------------------------
From: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Subject: Documentation/kdump/kdump.txt: remove /dev/oldmem description
Signed-off-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Dave Hansen <dave@xxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
Cc: Michael Holzheu <holzheu@xxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/kdump/kdump.txt | 31 ++++++-------------------------
1 file changed, 6 insertions(+), 25 deletions(-)
diff -puN Documentation/kdump/kdump.txt~documentation-kdump-kdumptxt-remove-dev-oldmem-description Documentation/kdump/kdump.txt
--- a/Documentation/kdump/kdump.txt~documentation-kdump-kdumptxt-remove-dev-oldmem-description
+++ a/Documentation/kdump/kdump.txt
@@ -47,19 +47,12 @@ parameter. Optionally the size of the EL
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
========
_
Patches currently in -mm which might be from zhangyanfei@xxxxxxxxxxxxxx are
linux-next.patch
ipvs-change-type-of-netns_ipvs-sysctl_sync_qlen_max.patch
vmcore-clean-up-read_vmcore.patch
vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment.patch
vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment-fix.patch
vmcore-treat-memory-chunks-referenced-by-pt_load-program-header-entries-in-page-size-boundary-in-vmcore_list.patch
vmalloc-make-find_vm_area-check-in-range.patch
vmalloc-introduce-remap_vmalloc_range_partial.patch
vmalloc-introduce-remap_vmalloc_range_partial-fix.patch
vmcore-allocate-elf-note-segment-in-the-2nd-kernel-vmalloc-memory.patch
vmcore-allocate-elf-note-segment-in-the-2nd-kernel-vmalloc-memory-fix.patch
vmcore-allow-user-process-to-remap-elf-note-segment-buffer.patch
vmcore-allow-user-process-to-remap-elf-note-segment-buffer-fix.patch
vmcore-calculate-vmcore-file-size-from-buffer-size-and-total-size-of-vmcore-objects.patch
vmcore-support-mmap-on-proc-vmcore.patch
vmcore-support-mmap-on-proc-vmcore-fix.patch
mm-remove-duplicated-call-of-get_pfn_range_for_nid.patch
dev-oldmem-remove-the-interface.patch
dev-oldmem-remove-the-interface-fix.patch
documentation-kdump-kdumptxt-remove-dev-oldmem-description.patch
mips-remove-savemaxmem-parameter-setup.patch
powerpc-remove-savemaxmem-parameter-setup.patch
ia64-remove-setting-for-saved_max_pfn.patch
s390-remove-setting-for-saved_max_pfn.patch
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