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authorBernhard Walle <bwalle@suse.de>2007-10-16 23:31:22 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:43:06 -0700
commit4fd45090d6aed83e3978689d8dc98ce16b9689dd (patch)
tree8b15fe952f10e832c17347e6efd939125ef3571d /Documentation/kdump
parentf00b51654ec919620aec911b4c3fa4ef3952bb6d (diff)
downloadlinux-linaro-stable-4fd45090d6aed83e3978689d8dc98ce16b9689dd.tar.gz
Express new ELF32 mechanisms in documentation
This patch reflects the http://git.kernel.org/?p=linux/kernel/git/horms/kexec-tools-testing.git;a=commit;h=b9c3648e690ad0dad12389659673206213a09760 change in kexec-tools-testing also now in the kernel documentation. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Haren Myneni <hbabu@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/kdump')
-rw-r--r--Documentation/kdump/kdump.txt12
1 files changed, 7 insertions, 5 deletions
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 68aa1650973a..a9a411d8b978 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -301,11 +301,13 @@ For ppc64:
Notes on loading the dump-capture kernel:
* By default, the ELF headers are stored in ELF64 format to support
- systems with more than 4GB memory. The --elf32-core-headers option can
- be used to force the generation of ELF32 headers. This is necessary
- because GDB currently cannot open vmcore files with ELF64 headers on
- 32-bit systems. ELF32 headers can be used on non-PAE systems (that is,
- less than 4GB of memory).
+ systems with more than 4GB memory. On i386, kexec automatically checks if
+ the physical RAM size exceeds the 4 GB limit and if not, uses ELF32.
+ So, on non-PAE systems, ELF32 is always used.
+
+ The --elf32-core-headers option can be used to force the generation of ELF32
+ headers. This is necessary because GDB currently cannot open vmcore files
+ with ELF64 headers on 32-bit systems.
* The "irqpoll" boot parameter reduces driver initialization failures
due to shared interrupts in the dump-capture kernel.