Re: Fw: Deadlock regression in v2.6.31.6

["Stephen R. van den Berg" <srb-PCMv+cxZuL0@public.gmane.org>]

On Fri, Nov 27, 2009 at 22:23, Trond Myklebust
<trond.myklebust@fys.uio.no> wrote:
> On Fri, 2009-11-27 at 01:14 +0100, Stephen R. van den Berg wrote:
>> On Fri, Nov 27, 2009 at 01:07, Stephen R. van den Berg <srb-PCMv+cxZuL0@public.gmane.org>=
 wrote:
> Does the following patch fix matters?

> =A0 =A0 =A0 =A0if (!xprt_lock_write(xprt, task))
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return;
> +
> + =A0 =A0 =A0 if (test_and_clear_bit(XPRT_CLOSE_WAIT, &xprt->state))
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 xprt->ops->close(xprt);
> +
> =A0 =A0 =A0 =A0if (xprt_connected(xprt))

Sorry.  No go.  I got the following trace, I'm not sure if this is
relevant, because it is difficult to determine if the logging
corresponds to the experienced problem.

RPC: 14194 xprt_connect_status: retrying
RPC: 14194 xprt_prepare_transmit
RPC: 14194 xprt_transmit(112)
RPC:       disconnected transport cfa82400
RPC: 14194 xprt_connect xprt cfa82400 is not connected
RPC: 14194 xprt_connect_status: retrying
RPC: 14194 xprt_prepare_transmit
RPC: 14194 xprt_transmit(112)
RPC:       disconnected transport cfa82400
RPC: 14194 xprt_connect xprt cfa82400 is not connected
RPC: 14194 xprt_connect_status: retrying
RPC: 14194 xprt_prepare_transmit
RPC: 14194 xprt_transmit(112)
RPC:       disconnected transport cfa82400
RPC: 14194 xprt_connect xprt cfa82400 is not connected
RPC: 14194 xprt_connect_status: retrying
RPC: 14194 xprt_prepare_transmit
RPC: 14194 xprt_transmit(112)
RPC:       disconnected transport cfa82400
RPC: 14194 xprt_connect xprt cfa82400 is not connected
RPC: 14194 xprt_connect_status: retrying
RPC: 14194 xprt_prepare_transmit
RPC: 14194 xprt_transmit(112)
--=20
Sincerely,
                Stephen R. van den Berg.