[Openib-windows] srp blue screen when CM fail to connect

[Fabian Tillier]

Hi Yossi,

On 9/10/06, Yossi Leybovich <sleybo at mellanox.co.il> wrote:
>
> Fab
>
> We still get the blue screen (even on new installation ) on object
> destruction.
> The problem is with ib_close_ca .
> The ca object is using sync destruction (AL_OBJ_SUBTYPE_UM_EXPORT) but its
> destruction still use ib_syn_destroy flag.
>
> proxy_close_ca function:
>
>  /*
>   * Note that we hold a reference on the CA, so we need to
>   * call close_ca, not ib_close_ca.  We also don't release the reference
>   * since close_ca will do so (by destroying the object).
>   */
>  h_ca->obj.pfn_destroy( &h_ca->obj, ib_sync_destroy );
>  p_ioctl->out.status = IB_SUCCESS;
> The code does not protect sync objects from using the ib_sync_destroy
> function and we end up with calling 0xffffffff.
> We can fix the call in proxy_close_ca but there are more places that use
> ib_sync_destroy function
> I think the way to solve this is to check ib_sync_destroy  also in the
> sync_destroy_obj  function .
>
> This patch fix the problem :

I committed a very similar fix, based on what you provided here, in
revision 488.  The main change was that I checked the callback pointer
when the internal 'user_destroy_cb' field is set.

Thanks,

- Fab