Re: Cross Memory Attach v3

[Geert Uytterhoeven <geert@linux-m68k.org>]

Hi Christopher,

On Mon, Jul 18, 2011 at 17:05, Christopher Yeoh <cyeoh@au1.ibm.com> wrote:
> For arch maintainers there are some simple tests to be able to quickly
> verify that the syscalls are working correctly here:

I'm wiring up these new syscalls on m68k.

> http://ozlabs.org/~cyeoh/cma/cma-test-20110718.tgz

The included README talks about:

    setup_process_readv_simple
    setup_process_readv_iovec
   setup_process_writev

while the actual test executables are called:

    setup_process_vm_readv_simple
    setup_process_vm_readv_iovec
    setup_process_vm_writev

On m68k (ARAnyM), the first and third test succeed. The second one
fails, though:

# Setting up target with num iovecs 10, test buffer size 100000
Target process is setup
Run the following to test:
./t_process_vm_readv_iovec 1574 10 0x800030b0 89 0x80003110 38302
0x8000c6b8 22423 0x80011e58 18864 0x80016810 583 0x80016a60 8054
0x800189e0 3417 0x80019740 368 0x800198b8 897 0x80019c40 7003

and in the other window:

# ./t_process_vm_readv_iovec 1574 10 0x800030b0 89 0x80003110 38302
0x8000c6b8 22423 0x80011e58 18864 0x80016810 583 0x80016a60 8054
0x800189e0 3417 0x80019740 368 0x800198b8 897 0x80019c40 7003
copy_from_process failed: Invalid argument
error code: 29
#

Any suggestions?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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