[openib-general] what happens if one close the device in user level without releasing the resources?

[Dotan Barak]

Michael S. Tsirkin wrote:
> Quoting r. Dotan Barak <dotanb at dev.mellanox.co.il>:
>   
>> Subject: what happens if one close the device in user level without releasing the resources?
>>
>> Hi.
>>
>> What should happen if one opens the IB device, allocate resources and 
>> close the device?
>> for example, if a user do the following operations in a loop:
>>     ibv_get_device_list
>>     in a loop:
>>         ibv_open_device
>>        ibv_alloc_pd
>>        ibv_create_cq
>>        ibv_close_device?
>>
>> should the ibv_close_device clean all of the allocated resources or it 
>> is up to the user to take care of this?
>>     
> Up to the user.
>
>   
The problem is that after one closed the HCA:
1) he don't know if he closed all of the resources
2) he can't release the resources that he have (i believe that this will 
cause a memory corruption ..)

When one tries to deallocate a PD which being used, this operation fail. 
can this verb (ibv_close_device) behave the same?

thanks
Dotan