Re: [PATCH 1/2] SUNRPC: Ensure that call_connect times out correctly

[Steve Dickson <SteveD@redhat.com>]

On 03/20/2014 10:12 AM, Steve Dickson wrote:
> 
> 
> On 03/19/2014 03:41 PM, Trond Myklebust wrote:
>>
>> On Mar 19, 2014, at 14:22, Steve Dickson <SteveD@redhat.com> wrote:
>>>
>>> What's going on is-ECONNREFUSED is being seen in call_connect_status() 
>>> and the task is not a soft connection. So call_timeout() is call which 
>>> eventual times out the mount… 
>>
>> This is what is confusing me. I’d expect that the rpc_ping() would be the 
>> first thing to be sent on the wire by rpc_create(), and that ping 
>> should normally have the RPC_SOFTCONN flag set.
>>
>>> So just for fun I make the SETCLIENTID rpc soft, but for some
>>> reason that didn't work either... I thought for sure it would... 
> I see you point... Using quick systemtap scripts it turns out
> rpc_ping is not failing (returns 0x0) and it should because
> the server is definitely down!  
Found it... The rpc_delay call in call_connect_status() 
is causing a callback to be scheduled and run before
rpc_exit_task. Unfortunately that call back (__rpc_atrun)
clears the status...

I'll posting my version of the fix shortly.. 

steved.