Here are: - Adjustments to ms API for arch_prctl(ARCH_MAP_VDSO_32). - Rework of my ms kernel patch for mremapping vdso to vzkernel (vdso part was rewritten in ~v3.16 so here is a bycicle for older kernel) - Fix for mmap() bug which resulted in returning pointer over 4GB for ia32 syscalls (the largest part of the set).
With those patches + 1 additional patch to vz-criu (u5 branch), it's possible to C/R ia32 CTs. I've sent the patch to criu-ml, it's trivial and affects only ia32 C/R, so soon I'll apply it to the vz7-u5 branch. There are two issues known to me: - zdtm autofs test (it hangs, so no C/R was tested). - vsyscall page appears on all 32-bit tasks after C/R. It's emulated, placed over 4Gb, so the only side-effect is for applications, reading /proc/.../maps and those are not ready to meet such mapping (such applications not known to me). I've tested C/R on centos-6-x86 ia32 container with vzctl, all looks fine to me. Dmitry Safonov (9): x86/vdso/prctl: fail if vdso present in ARCH_MAP_VDSO_32 x86/mm: Support mremap()'ing vdso vma x86/vdso/prctl: Return size of vdso blob for ARCH_MAP_VDSO_32 ms/x86/mm: Introduce arch_rnd() to compute 32/64 mmap random base ms/x86/mm: Add task_size parameter to mmap_base() ms/x86/mm: Introduce mmap_compat_base() for 32-bit mmap() ms/x86/mm: Make mmap(MAP_32BIT) work correctly ms/x86/hugetlb: Adjust to the new native/compat mmap bases x86/mm: Make in_compat_syscall() work during exec Kees Cook (2): ms/x86: standardize mmap_rnd() usage ms/mm: expose arch_mmap_rnd when available arch/Kconfig | 15 ++++ arch/x86/Kconfig | 2 + arch/x86/include/asm/Kbuild | 1 - arch/x86/include/asm/elf.h | 33 ++++----- arch/x86/include/asm/mm-arch-hooks.h | 20 ++++++ arch/x86/include/asm/processor.h | 4 +- arch/x86/kernel/process_64.c | 67 ++++++++++++------ arch/x86/kernel/sys_x86_64.c | 15 ++-- arch/x86/mm/hugetlbpage.c | 9 ++- arch/x86/mm/mmap.c | 129 +++++++++++++++++++++++------------ arch/x86/vdso/vdso32-setup.c | 49 +++++++++---- include/linux/elf-randomize.h | 10 +++ include/linux/mm.h | 2 + include/linux/mm_types.h | 5 ++ mm/mmap.c | 20 ++++++ 15 files changed, 277 insertions(+), 104 deletions(-) create mode 100644 arch/x86/include/asm/mm-arch-hooks.h create mode 100644 include/linux/elf-randomize.h -- 2.12.2 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
