I checked the debug message and the code in iscsi_tcp_segment_done but i can not understand the infomation in tcp debug info shown below.
twice ? Sep 27 09:37:01 localhost kernel: tcp: iscsi_tcp_send_data_prep (cb76be00, offset=0, datalen=12) Sep 27 09:37:01 localhost kernel: tcp: copied 0 0 size 48 xmit Sep 27 09:37:01 localhost kernel: tcp: copied 0 48 size 48 xmit Sep 27 09:37:01 localhost kernel: tcp: iscsi_tcp_segment_unmap cb76bf4c Sep 27 09:37:01 localhost kernel: tcp: total copied 48 total size 48 Sep 27 09:37:01 localhost kernel: tcp: Header done. Next segment size 12 total_size 12 Sep 27 09:37:01 localhost kernel: tcp: copied 0 0 size 12 xmit ------------------------------------- This place Sep 27 09:37:01 localhost kernel: tcp: copied 0 12 size 12 xmit ------------------------------------- can not understand Sep 27 09:37:01 localhost kernel: tcp: iscsi_tcp_segment_unmap cb76bf4c Sep 27 09:37:01 localhost kernel: tcp: total copied 12 total size 12 ------------------------------------- Sep 27 09:37:01 localhost kernel: tcp: copied 0 0 size 0 xmit Sep 27 09:37:01 localhost kernel: tcp: iscsi_tcp_segment_unmap cb76bf4c Sep 27 09:37:01 localhost kernel: tcp: total copied 12 total size 12 -------------------------------------- Sep 27 09:37:01 localhost kernel: tcp: xmit 60 bytes Sep 27 09:37:01 localhost kernel: tcp: no R2Ts yet Sep 27 09:37:01 localhost kernel: tcp: in 60 bytes Sep 27 09:37:01 localhost kernel: tcp: skb dfab65c0 ptr=da5a5a54 avail=60 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 -~----------~----~----~----~------~----~------~--~---
