[openib-general] Re: user space verbs examples

[Hal Rosenstock]

On Wed, 2005-06-01 at 19:34, Roland Dreier wrote:
>     Hal> ibv_asyncwatch Couldn't get context for mthca0
> 
>     Hal> dmesg shows: Jun 1 19:01:00 hal kernel: UCM: Created struct
>     Hal> Jun 1 19:01:00 hal kernel: UCM: Deleted struct
> 
> Looks like it's coming from UCM, not any of these tests...

That message is coming from a global constructor for user CM.

>     Hal> Any idea on what is wrong ?
> 
> Nope.  Are all your userspace and kernel versions in sync?

Yes.

> If so, then send the output of 'strace -ewrite=all -etrace=write ibv_asyncwatch'

Not very informative :-(
strace -etrace=write -ewrite=all ./examples/ibv_asyncwatch
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
write(2, "Couldn\'t get context for mthca0\n", 32Couldn't get context for mthca0
) = 32
 | 00000  43 6f 75 6c 64 6e 27 74  20 67 65 74 20 63 6f 6e  Couldn't  get con |
 | 00010  74 65 78 74 20 66 6f 72  20 6d 74 68 63 61 30 0a  text for  mthca0. |

Same for all examples except ibv_devices.

-- Hal