On 10/15/2009 01:36 AM, niko scsi wrote: > 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. >
Could you also send the libiscsi_tcp and libiscsi debug output? And could you send more log. Send the part up to the point you get the datasn error. > 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 -~----------~----~----~----~------~----~------~--~---
