diff options
| author | Bernhard Walle <bwalle@suse.de> | 2007-10-16 23:31:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:43:06 -0700 |
| commit | 4fd45090d6aed83e3978689d8dc98ce16b9689dd (patch) | |
| tree | 8b15fe952f10e832c17347e6efd939125ef3571d /Documentation/kdump | |
| parent | f00b51654ec919620aec911b4c3fa4ef3952bb6d (diff) | |
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.txt | 12 |
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. |