[PATCH 0/9] powerpc checkpoint/restart kernel support
orenl at librato.com
Wed Sep 16 08:11:04 PDT 2009
I'll apply the general fixes right away.
I'm about to push ckpt-v18-rc1 today. Would you like that to include
the remaining patches as well ?
Nathan Lynch wrote:
> Patches 1-3 fix general issues and can be applied immediately.
> Patches 4-8 implement the checkpoint and restart syscalls and
> architecture callbacks.
> Patch 9 implements the clone_with_pids syscall, but I think the shape
> of that interface is yet to be finalized, so I guess it's FYI for now.
> Simple single task checkpoint and restart work, as does
> clone_with_pids, apparently. Multiple task restart fails; the
> coordinator task appears to be receiving a signal during
> wait_all_tasks_finish() -> wait_for_completion_interruptible() for
> some reason I am still trying to tracking down.
> Nathan Lynch (9):
> checkpoint: fix integer-pointer conversion warnings
> fix trivial build breaks in compat code
> futex.h: fix compat builds
> powerpc: reserve checkpoint arch identifiers
> powerpc: provide APIs for validating and updating DABR
> powerpc: checkpoint/restart implementation
> powerpc: wire up checkpoint and restart syscalls
> powerpc: enable checkpoint support in Kconfig
> powerpc: clone_with_pids implementation
> arch/powerpc/Kconfig | 3 +
> arch/powerpc/include/asm/Kbuild | 1 +
> arch/powerpc/include/asm/checkpoint_hdr.h | 22 ++
> arch/powerpc/include/asm/ptrace.h | 7 +
> arch/powerpc/include/asm/syscalls.h | 4 +
> arch/powerpc/include/asm/systbl.h | 3 +
> arch/powerpc/include/asm/unistd.h | 5 +-
> arch/powerpc/kernel/entry_32.S | 8 +
> arch/powerpc/kernel/entry_64.S | 5 +
> arch/powerpc/kernel/process.c | 18 +
> arch/powerpc/kernel/ptrace.c | 88 ++++--
> arch/powerpc/mm/Makefile | 1 +
> arch/powerpc/mm/checkpoint.c | 531 +++++++++++++++++++++++++++++
> checkpoint/process.c | 14 +-
> include/linux/checkpoint_hdr.h | 2 +
> include/linux/futex.h | 4 +
> 16 files changed, 679 insertions(+), 37 deletions(-)
> create mode 100644 arch/powerpc/include/asm/checkpoint_hdr.h
> create mode 100644 arch/powerpc/mm/checkpoint.c
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