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.
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.