Sorry to bother you guys again. Is there possible a situation of " phase collapse " ?
target has two ways to return ending status to the initiator. The normal method is via the SCSI Response PDU; the other is via the last Data-In PDU (if any). And in the debug log ,It is exactly the second way .We received opcode = 0x25 Data-In PDU Sep 27 09:37:01 localhost kernel: tcp: opcode 0x25 ahslen 0 datalen 12 Sep 27 09:37:01 localhost kernel: tcp: iscsi_data_rsp: ctask- >exp_datasn(1) != rhdr->datasn(0) On Sep 30, 2:48 am, Mike Christie <[email protected]> wrote: > On 09/26/2009 09:20 PM, niko scsi wrote: > > > > > > > I followed the > > howtohttp://tldp.org/HOWTO/SCSI-Generic-HOWTO/scsi_snd_cmd.html > > to pass through scsi cmd with data (self defined,target can handle > > it) to iscsi disk. > > however,the request was handled six times ,I checked the log ,the > > reason is shown below. The connection failed and recovered six > > times ,and I tested many times ,each time ,the same :six times! > > I'm newbie to scsi program. Any idea that can cause this problem ? > > > error occurred in function iscsi_data_rsp > > > tcp debug infomations show below : > > > ....................................... > > Sep 27 09:37:01 localhost kernel: tcp: skb dfab65c0 ptr=da5a5a54 > > avail=60 > > Sep 27 09:37:01 localhost kernel: tcp: copied 0 0 size 48 recv > > Sep 27 09:37:01 localhost kernel: tcp: iscsi_tcp_segment_recv copying > > 48 > > Sep 27 09:37:01 localhost kernel: tcp: copied 0 48 size 48 recv > > Sep 27 09:37:01 localhost kernel: tcp: iscsi_tcp_segment_unmap > > cb76be10 > > Sep 27 09:37:01 localhost kernel: tcp: total copied 48 total size 48 > > Sep 27 09:37:01 localhost kernel: tcp: segment done > > Sep 27 09:37:01 localhost kernel: tcp: opcode 0x25 ahslen 0 datalen 12 > > Sep 27 09:37:01 localhost kernel: tcp: iscsi_data_rsp: ctask- > >> exp_datasn(1) != rhdr->datasn(0) > > You might not be doing anything wrong. It might a target or initiator bug. > > What target are you using? In your setup, did you modify the iscsi > target in some way? > > And what kernel are using?- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
