RE: CmdSN greather than MaxCmdSN protocol error in LIO Iser

Moussa Ba (moussaba)
2013-11-12T19:49:06Z

> -----Original Message-----
> From: Michael Christie [mailto:michaelc@cs.wisc.edu]
> Sent: Tuesday, November 12, 2013 11:46 AM
> To: Moussa Ba (moussaba)
> Cc: Nicholas A. Bellinger; target-devel@vger.kernel.org; Nicholas
> Bellinger; Or Gerlitz; linux-scsi
> Subject: Re: CmdSN greather than MaxCmdSN protocol error in LIO Iser
>
>
> On Nov 12, 2013, at 12:18 PM, Moussa Ba (moussaba)
> <moussaba@micron.com> wrote:
> >
> > I am attaching error codes on the inititator that seem to coincide
> with the timeout errors.
> >
> > [ 261.855254] connection6:0: pdu (op 0x65 itt 0x1) rejected. Reason
> code 0x4
> > [ 261.855266] connection6:0: pdu (op 0xa itt 0x1) rejected. Reason
> code 0x4
> > [ 261.855268] connection6:0: pdu (op 0x51 itt 0x1) rejected. Reason
> code 0x4
> >
>
>
> The initiator does not handle rejects. This is actually the 2nd time I
> have
> seen one in 10 years. It logs them just lets the command timeout.

Well, I saw 8 already this morning :-). Looking at the reason code it is a protocol error, which is obviously related to the CmdSN/MaxCmdSN mismatch.

Moussa