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fd59d231f8
linux/arch/x86/kernel
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Ken'ichi Ohmichi fd59d231f8 Add vmcoreinfo 
This patch set frees the restriction that makedumpfile users should install a
vmlinux file (including the debugging information) into each system.

makedumpfile command is the dump filtering feature for kdump.  It creates a
small dumpfile by filtering unnecessary pages for the analysis.  To
distinguish unnecessary pages, it needs a vmlinux file including the debugging
information.  These days, the debugging package becomes a huge file, and it is
hard to install it into each system.

To solve the problem, kdump developers discussed it at lkml and kexec-ml.  As
the result, we reached the conclusion that necessary information for dump
filtering (called "vmcoreinfo") should be embedded into the first kernel file
and it should be accessed through /proc/vmcore during the second kernel.
(http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html)

Dan Aloni created the patch set for the above implementation.
(http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html)

And I updated it for multi architectures and memory models.
(http://lists.infradead.org/pipermail/kexec/2007-August/000479.html)

Signed-off-by: Dan Aloni <da-x@monatomic.org>
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:54 -07:00
..
acpi Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
cpu Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
cpufreq x86_64: move kernel/cpufreq 2007-10-11 11:17:06 +02:00
.gitignore i386: move kernel 2007-10-11 11:17:01 +02:00
alternative.c x86: fix missing include for vsyscall 2007-10-14 22:57:45 +02:00
aperture_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
apic_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
apic_64.c x86: force timer broadcast on late AMD C1E detection 2007-10-14 22:57:45 +02:00
apm_32.c Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
asm-offsets_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
asm-offsets_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
asm-offsets.c i386: move kernel 2007-10-11 11:17:01 +02:00
audit_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
bootflag.c i386: move kernel 2007-10-11 11:17:01 +02:00
bugs_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
cpuid.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
crash_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
crash_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
crash_dump_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
crash_dump_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
doublefault_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
e820_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
e820_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
early_printk.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
early-quirks_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
efi_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
efi_stub_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
entry_32.S lockdep: i386: connect the sysexit hook 2007-10-11 22:11:12 +02:00
entry_64.S lockdep: x86_64: connect the sysexit hook 2007-10-11 22:11:12 +02:00
genapic_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
genapic_flat_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
geode_32.c x86: Geode Multi-Function General Purpose Timers support 2007-10-12 23:04:06 +02:00
head64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
head_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
head_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
hpet.c x86: HPET force enable for ICH5 2007-10-12 23:04:24 +02:00
i386_ksyms_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
i387_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
i387_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
i8237.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
i8253.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
i8259_32.c x86: kill 8253pit.h 2007-10-12 23:04:23 +02:00
i8259_64.c x86_64: convert to clock events 2007-10-12 23:04:07 +02:00
init_task_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
init_task_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
io_apic_32.c Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
io_apic_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
ioport_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
ioport_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
irq_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
irq_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
k8.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
kprobes_32.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
kprobes_64.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
ldt_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
ldt_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
machine_kexec_32.c Add vmcoreinfo 2007-10-17 08:42:54 -07:00
machine_kexec_64.c Add vmcoreinfo 2007-10-17 08:42:54 -07:00
Makefile x86_64: move kernel 2007-10-11 11:17:24 +02:00
Makefile_32 x86_64: remove now unused code 2007-10-12 23:04:23 +02:00
Makefile_64 x86_64: remove now unused code 2007-10-12 23:04:23 +02:00
mca_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
mce_64.c Remove workaround for unimmunized rcu_dereference from mce_log() 2007-10-17 08:42:46 -07:00
mce_amd_64.c x86: Convert cpu_core_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
mce_intel_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mfgpt_32.c x86: Geode MFGPT clock event device support 2007-10-12 23:04:06 +02:00
microcode.c i386: move kernel 2007-10-11 11:17:01 +02:00
module_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
module_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mpparse_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
mpparse_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
msr.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
nmi_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
nmi_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
numaq_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
paravirt_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
pci-calgary_64.c x86-64: update calgary iommu to sg helpers 2007-10-16 11:26:02 +02:00
pci-dma_32.c dma_free_coherent() needs irqs enabled (sigh) 2007-10-12 15:03:15 -07:00
pci-dma_64.c dma_free_coherent() needs irqs enabled (sigh) 2007-10-12 15:03:15 -07:00
pci-gart_64.c x86-64: update pci-gart iommu to sg helpers 2007-10-16 11:26:02 +02:00
pci-nommu_64.c x86-64: update nommu to sg helpers 2007-10-16 11:26:02 +02:00
pci-swiotlb_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
pcspeaker.c i386: move kernel 2007-10-11 11:17:01 +02:00
pmtimer_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
process_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
process_64.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
ptrace_32.c Consolidate PTRACE_DETACH 2007-10-16 09:42:49 -07:00
ptrace_64.c Consolidate PTRACE_DETACH 2007-10-16 09:42:49 -07:00
quirks.c x86: HPET add another ICH7 PCI id 2007-10-12 23:04:24 +02:00
reboot_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
reboot_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
reboot_fixups_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
relocate_kernel_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
relocate_kernel_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
scx200_32.c long vs. unsigned long - low-hanging fruits in drivers 2007-10-14 12:41:51 -07:00
setup64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
setup_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
setup_64.c x86: Convert cpu_core_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
sigframe_32.h i386: move kernel 2007-10-11 11:17:01 +02:00
signal_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
signal_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
smp_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
smp_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
smpboot_32.c Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
smpboot_64.c Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
smpcommon_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
srat_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
stacktrace.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
summit_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
suspend_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
suspend_asm_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
sys_i386_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
sys_x86_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
syscall_64.c i386/x86_64: move headers to include/asm-x86 2007-10-11 11:20:03 +02:00
syscall_table_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
sysenter_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
tce_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
time_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
time_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
topology.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
trampoline_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
trampoline_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
traps_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
traps_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
tsc_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
tsc_64.c x86: unify timex.h variants 2007-10-12 23:04:23 +02:00
tsc_sync.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
verify_cpu_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
vm86_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
vmi_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
vmiclock_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux_32.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux_64.lds.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
vmlinux.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsmp_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
vsyscall_32.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
vsyscall-int80_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-note_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-sigreturn_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-sysenter_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
x8664_ksyms_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00