Please find attached a SKAS3 patch against Linux 2.6.24-rc7, based on
Jeff Dike's 2007-12-08 patch for 2.6.23.

Quoteth Jeff:
> 2.6.24 is going to be even more interesting, given the x86 merge.

Indeed it is.  This patch is not perfect and I need some help.  Host
i386 and x86_64 build with CONFIG_PROC_MM (I tested i386 and it works,
but for x86_64 I just made sure it compiles defconfig).  Guest i386
builds correctly and runs fine, but I cannot figure this out when
building guest x86_64:

  CC      arch/um/kernel/ptrace.o
In file included from arch/um/include/skas_ptrace.h:12,
                 from arch/um/kernel/ptrace.c:13:
arch/um/include/sysdep/skas_ptrace.h:9: error: redefinition of ‘struct
ptrace_faultinfo’
arch/um/include/sysdep/skas_ptrace.h:14: error: redefinition of ‘struct
ptrace_ldt’
make[1]: *** [arch/um/kernel/ptrace.o] Error 1
make: *** [arch/um/kernel] Error 2

sysdep-i386/skas_ptrace.h and sysdep-x86_64/skas_ptrace.h are nearly
identical, so I can't figure out why ptrace_faultinfo and ptrace_ldt are
being defined in the first place.

RF

 arch/um/sys-i386/ldt.c           |    2
 arch/x86/Kconfig                 |   20 ++
 arch/x86/ia32/ptrace32.c         |   68 +++++++
 arch/x86/ia32/sys_ia32.c         |   16 +
 arch/x86/kernel/ldt_32.c         |   58 +++---
 arch/x86/kernel/ldt_64.c         |   55 +++--
 arch/x86/kernel/ptrace_32.c      |   61 ++++++
 arch/x86/kernel/ptrace_64.c      |   70 +++++++
 arch/x86/kernel/sys_i386_32.c    |   27 ++
 arch/x86/kernel/sys_x86_64.c     |   15 +
 arch/x86/mm/Makefile_64          |    1
 arch/x86/mm/proc_mm_64.c         |   85 ++++++++
 include/asm-um/compat.h          |    9
 include/asm-um/proc_mm_32.h      |    1
 include/asm-um/proc_mm_64.h      |    1
 include/asm-um/ptrace-x86_64.h   |   11 +
 include/asm-x86/desc_32.h        |    3
 include/asm-x86/desc_64.h        |    3
 include/asm-x86/mmu_context_32.h |   19 +
 include/asm-x86/mmu_context_64.h |   20 +-
 include/asm-x86/proc_mm_32.h     |   18 +
 include/asm-x86/proc_mm_64.h     |   58 ++++++
 include/asm-x86/ptrace-abi.h     |    6
 include/asm-x86/ptrace.h         |   65 ++++++
 include/linux/mm.h               |   19 +
 include/linux/proc_mm.h          |  110 +++++++++++
 mm/Makefile                      |    5
 mm/fremap.c                      |    5
 mm/mmap.c                        |   17 -
 mm/mprotect.c                    |   20 +-
 mm/proc_mm-mod.c                 |   50 +++++
 mm/proc_mm.c                     |  299 +++++++++++++++++++++++++++++++
 32 files changed, 1133 insertions(+), 84 deletions(-)