[ofw] RE: Completion with bad status: IBV_WC_RETRY_EXC_ERROR

[Tzachi Dar]

Can you please send us your source code (Linux and windows)


________________________________

	From: Diego Guella [mailto:diego.guella at sircomtech.com] 
	Sent: Tuesday, November 13, 2007 2:45 PM
	To: Tzachi Dar; Fab Tillier
	Cc: ofw at lists.openfabrics.org
	Subject: Re: Completion with bad status: IBV_WC_RETRY_EXC_ERROR
	
	
	Hi Tzachi,
	 
	The error is on the "daemon" side (sender) at the polling of the
cq, I get a completion work, but the status is not success.
	The "client" (receiver) don't sees nothing, in the recv case
none of the recv wr are used. In the rdma case, it is normal that the
recv wr isn't used.
	 
	I am using either send/recv and rdma operations but the results
are the same.
	I am doing only one operation, the code is the example in WinIB
1.3, under Mellanox\WinIB\SDK\examples\hello_world
	with some slight modifications on Windows to get RDMA working,
and heavy modifications on Linux to use the Verbs interface instead of
ib_al.
	 
	I can send you the sources if you want.
	 
	 
	The same program works OK on Windows using the same machine as
client/daemon. (I don't have 2 windows machines with Infiniband here)
	 
	 
	 

		----- Original Message ----- 
		From: Tzachi Dar <mailto:tzachid at mellanox.co.il>  
		To: Diego Guella <mailto:diego.guella at sircomtech.com>  ;
Fab Tillier <mailto:ftillier at windows.microsoft.com>  
		Cc: ofw at lists.openfabrics.org 
		Sent: Tuesday, November 13, 2007 12:59 PM
		Subject: RE: Completion with bad status:
IBV_WC_RETRY_EXC_ERROR

		Hi Diego,
		 
		Can you give us more information on where the error is?
		 
		Does your problem happen on the first packet that you
send or only after some time?
		Are you using send/recv or RDMA operations?
		 
		Thanks
		Tzachi


________________________________

			From: Diego Guella
[mailto:diego.guella at sircomtech.com] 
			Sent: Tuesday, November 13, 2007 11:29 AM
			To: Diego Guella; Tzachi Dar; Fab Tillier
			Cc: ofw at lists.openfabrics.org
			Subject: Completion with bad status:
IBV_WC_RETRY_EXC_ERROR
			
			
			Hi
			 
			I'm trying to port the source example in
Mellanox\WinIB\SDK\examples\hello_world to Linux.
			 
			The problem I have is this: after I post the WR,
I get completion with error:
			status = 12 (IBV_WC_RETRY_EXC_ERROR) on Linux;
			status = IB_WCS_TIMEOUT_RETRY_ERR on Windows.
			 
			 
			What does this error means? I'm not sure about
it.
			Perhaps am I sending to the wrong LID? to the
wrong QPN??
			 
			Any help is appreciated.
			 
			 
			Thanks,
			Diego
			 

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