Kdump Update i386/x86_64

Vivek Goyal lkml 1 version Nov 17, 2005 In review

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v1 Latest Nov 17, 200510 patches 11 repliesIn review

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#	Subject and files	Size	Replies
1/10	kdump: i386 save ss esp bug fix`arch/i386/kernel/crash.c`	+4 -2	0 replies
2/10	kdump: dynamic per cpu allocation of memory for saving cpu registers`arch/i386/kernel/crash.c` `arch/ppc/kernel/machine_kexec.c` `arch/ppc64/kernel/machine_kexec.c` +8 more	+21 ~~-27~~	3 replies
3/10	kdump: export per cpu crash notes pointer through sysfs`drivers/base/cpu.c` `kernel/ksysfs.c`	+32 ~~-13~~	2 replies
4/10	kdump: save registers early (inline functions)`arch/i386/kernel/crash.c` `include/asm-i386/kexec.h` `kernel/kexec.c`	+51 ~~-45~~	0 replies
5/10	kdump: x86_64 add memmmap command line option`Documentation/kernel-parameters.txt` `arch/x86_64/kernel/e820.c` `arch/x86_64/kernel/setup.c` +1 more	+50 -1	0 replies
6/10	kdump: x86_64 add elfcorehdr command line option`Documentation/kernel-parameters.txt` `arch/x86_64/kernel/setup.c`	+13 -3	0 replies
7/10	kdump: x86_64 kexec on panic`arch/x86_64/kernel/crash.c`	+85 -1	0 replies
8/10	kdump: x86_64 save cpu registers upon crash`arch/x86_64/Kconfig` `arch/x86_64/kernel/crash.c` `include/asm-x86_64/kexec.h`	+113 -0	3 replies
9/10	kdump: read previous kernel's memory`arch/i386/kernel/Makefile` `arch/i386/kernel/crash_dump.c` `arch/x86_64/kernel/Makefile` +4 more	+99 ~~-62~~	3 replies
10/10	kexec: increase max segment limit`include/linux/kexec.h`	+1 -1	0 replies

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Cover letter [PATCH 0/10] Kdump Update i386/x86_64

Hi,

Following set of patches is an update to kdump on i386 and x86_64. Changes arises mainly due to review comments received during last posting of kdump for x86_64.

Vivek Goyal:
- i386 save ss esp bug fix
- dynamic per cpu allocation of memory for saving cpu registers
- export per cpu crash notes pointer through sysfs
- save registers early (inline functions)

Murali M:
- x86_64 add memmmap command line option
- x86_64 add elfcorehdr command line option
- x86_64 kexec on panic
- x86_64 save cpu registers upon crash

Rachita Kothiyal:
- read previous kernel's memory
- kexec increase max segment limit

This set of patches has been tested on i386 and em64t x86_64 machine. Crash dumps can be captured and opened using gdb and crash-4.0-2.12.

Corresponding kexec-tools patches are being posted in a separate set on fastboot mailing list.

Thanks
Vivek

Read the cover letter in its thread