linux.git/fs/proc/vmcore.c, branch v2.6.23

[PATCH] i386: Allow i386 crash kernels to handle x86_64 dumps

2007-05-02T17:27:09+00:00

The specific case I am encountering is kdump under Xen with a 64 bit
hypervisor and 32 bit kernel/userspace.  The dump created is 64 bit due to
the hypervisor but the dump kernel is 32 bit for maximum compatibility.

It's possibly less likely to be useful in a purely native scenario but I
see no reason to disallow it.

[akpm@linux-foundation.org: build fix]
Signed-off-by: Ian Campbell 
Signed-off-by: Andi Kleen 
Acked-by: Vivek Goyal 
Cc: Horms 
Cc: Magnus Damm 
Cc: "Eric W. Biederman" 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk

[PATCH] kdump proc vmcore size oveflow fix

2006-04-11T13:18:42+00:00

A couple of /proc/vmcore data structures overflow with 32bit systems having
memory more than 4G.  This patch fixes those.

Signed-off-by: Ken'ichi Ohmichi 
Signed-off-by: Vivek Goyal 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Make most file operations structs in fs/ const

2006-03-28T17:16:06+00:00

This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] kdump: vmcore compilation warning fix

2006-01-12T02:42:11+00:00

o fs/proc/vmcore.c compilation gives warnings on ppc64. The reason being
  that u64 is defined as unsigned long hence u64* is not same as loff_t*
  and compiler cribs.

o Changed the parameter type to u64* instead of loff_t* to resolve the
  conflict.

Signed-off-by: Vivek Goyal 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fs/proc/vmcore.c: header included twice

2006-01-11T01:10:28+00:00

Header included twice.

Signed-off-by: Nicolas Kaiser 
Signed-off-by: Adrian Bunk

[PATCH] kdump: read previous kernel's memory

2006-01-10T16:01:28+00:00

- Moving the crash_dump.c file to arch dependent part as kmap_atomic_pfn is
  specific to i386 and highmem may not exist in other archs.

- Use ioremap for x86_64 to map the previous kernel memory.

- In copy_oldmem_page(), we now directly copy to the user/kernel buffer and
  avoid the unneccesary copy to a kmalloc'd page.

Signed-off-by: Rachita Kothiyal 
Signed-off-by: Vivek Goyal 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] kdump: Parse elf32 headers and export through /proc/vmcore

2005-06-25T23:24:53+00:00

o Adds support for parsing core ELF32 headers.
o I am expecting ELF32 support to go away down the line. This patch has been
  introduced for testing purposes as gdb can not parse ELF64 headers for
  i386. When a decent user space solution is available, ELF32 support
  can go away.

Signed-off-by: Vivek Goyal 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] kdump: Access dump file in elf format (/proc/vmcore)

2005-06-25T23:24:53+00:00

From: "Vivek Goyal" 

o Support for /proc/vmcore interface. This interface exports elf core image
  either in ELF32 or ELF64 format, depending on the format in which elf headers
  have been stored by crashed kernel.
o Added support for CONFIG_VMCORE config option.
o Removed the dependency on /proc/kcore.

From: "Eric W. Biederman" 

This patch has been refactored to more closely match the prevailing style in
the affected files.  And to clearly indicate the dependency between
/proc/kcore and proc/vmcore.c

From: Hariprasad Nellitheertha 

This patch contains the code that provides an ELF format interface to the
previous kernel's memory post kexec reboot.

Signed off by Hariprasad Nellitheertha 
Signed-off-by: Eric Biederman 
Signed-off-by: Vivek Goyal 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds