Just email the trace to me in private. Anuarg Vora wrote: > I have got a reproducible test case for this. > It seems that SCSI layer returns DID_BUS_BUSY many times when 'conn error > (1011)' is seen. >
DID_BUS_BUSY when getting a 1011 is sort of expected. If you are not using dm-multipath then the scsi layer will retry the error value up to 5 times. If you are using dm-mutlipath then the scsi layer will fail the IO to the multipath layer, where it will retry a new path right away. > for p in `ls /dev/sd*` > do > dd if=$p of=/dev/zero count=10000 & > done > wait > > # ./io-script > 10000+0 records in > 10000+0 records out > 5120000 bytes (5.1 MB) copied, 0.177076 seconds, 28.9 MB/s > .... > dd: reading `/dev/sdaa8': Input/output error > 2976+0 records in > 2976+0 records out > > Dec 14 11:15:12 cdc-r710s3 iscsid: Kernel reported iSCSI connection 1:0 error > (1011) state (3) > Dec 14 11:15:13 cdc-r710s3 kernel: connection2:0: detected conn error (1011) > Dec 14 11:15:13 cdc-r710s3 iscsid: connection2:0 is operational after > recovery (1 attempts) > Dec 14 11:15:13 cdc-r710s3 iscsid: Kernel reported iSCSI connection 2:0 error > (1011) state (3) > Dec 14 11:15:14 cdc-r710s3 kernel: connection1:0: detected conn error (1011) > ... > Dec 14 11:15:14 cdc-r710s3 kernel: sd 9:0:0:13: SCSI error: return code = > 0x00020000 <== DID_BUS_BUSY > Dec 14 11:15:14 cdc-r710s3 kernel: end_request: I/O error, dev sdaa, sector > 2976 > > I am unable to upload ethereal on > http://groups-beta.google.com/group/open-iscsi/files > > Regards, > Anurag > > --- On Fri, 12/11/09, Anuarg Vora <anurag_vo...@yahoo.com> wrote: > >> From: Anuarg Vora <anurag_vo...@yahoo.com> >> Subject: Re: SLES10 SP3 x86_64 - connection2:0: detected conn error (1011) >> To: open-iscsi@googlegroups.com >> Date: Friday, December 11, 2009, 12:22 AM >> Sorry, I do not see an upload option >> for me even after (signing-in). >> How to upload ? >> >> --- On Thu, 12/10/09, Mike Christie <micha...@cs.wisc.edu> >> wrote: >> >>> From: Mike Christie <micha...@cs.wisc.edu> >>> Subject: Re: SLES10 SP3 x86_64 - connection2:0: >> detected conn error (1011) >>> To: open-iscsi@googlegroups.com >>> Date: Thursday, December 10, 2009, 11:39 PM >>> Anuarg Vora wrote: >>>> I did sent the ethereal trace yesterday. >>>> I am not sure why it didn't reach, is there any >> place >>> I can upload it ? >>> http://groups-beta.google.com/group/open-iscsi/files >>> >>> -- >>> >>> You received this message because you are subscribed >> to the >>> Google Groups "open-iscsi" group. >>> To post to this group, send email to open-is...@googlegroups.com. >>> To unsubscribe from this group, send email to >> open-iscsi+unsubscr...@googlegroups.com. >>> For more options, visit this group at >>> http://groups.google.com/group/open-iscsi?hl=en. >>> >>> >>> >> >> >> >> -- >> >> You received this message because you are subscribed to the >> Google Groups "open-iscsi" group. >> To post to this group, send email to open-is...@googlegroups.com. >> To unsubscribe from this group, send email to >> open-iscsi+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/open-iscsi?hl=en. >> >> >> > > > > > -- > > You received this message because you are subscribed to the Google Groups > "open-iscsi" group. > To post to this group, send email to open-is...@googlegroups.com. > To unsubscribe from this group, send email to > open-iscsi+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/open-iscsi?hl=en. > > -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-is...@googlegroups.com. To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
