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From: sebastien dugue <sebastien.dugue-6ktuUTfB/bM@public.gmane.org>
To: Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Vincent <jean-vincent.ficet-6ktuUTfB/bM@public.gmane.org>,
	Celine <Celine.Bourde-6ktuUTfB/bM@public.gmane.org>
Subject: Re: mlx4 catas_reset hangs when using the CM
Date: Mon, 2 Apr 2012 09:02:25 +0200	[thread overview]
Message-ID: <20120402090225.42087ad3@b012350-ux> (raw)
In-Reply-To: <CAL1RGDV-j7A7vEXuWkK6Q96u09woB2vx92gp9LS2=uWFrDmCbw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Fri, 30 Mar 2012 11:33:56 -0700
Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:

> On Thu, Mar 29, 2012 at 4:41 AM, sebastien dugue
> <sebastien.dugue-6ktuUTfB/bM@public.gmane.org> wrote:
> >  So it looks like that cma_process_remove() did all it's job cleaning up
> > but is hung waiting for the client refcount to reach 0, which never happens.
> 
> This is unfortunately expected with the current implementation.  Because we
> don't have a way to revoke active userspace users of the device, we just send
> them a catastrophic error async event and then expect them to clsoe the
> device.  But if they never close the device, we just wait forever.

  Yep, that's what I gathered and unfortunately, having lustre as a client
is not going to help.

  Thanks,

  Sébastien.

> 
>  - R.
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      parent reply	other threads:[~2012-04-02  7:02 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-29 11:41 mlx4 catas_reset hangs when using the CM sebastien dugue
2012-03-30 18:33 ` Roland Dreier
     [not found]   ` <CAL1RGDV-j7A7vEXuWkK6Q96u09woB2vx92gp9LS2=uWFrDmCbw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-04-02  7:02     ` sebastien dugue [this message]

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