On 26/10/11 14:18, Mike Christie wrote: > On 10/26/2011 06:48 AM, Sebastian Riemer wrote: > >> Hi all, >> >> we have OpenIndiana storage servers as iSER targets and Debian Squeeze >> with open-iscsi 2.0.871.3-2squeeze as initiators. The Debian systems run >> lots of QEMU/KVM VMs on the iSER SCSI devices. >> >> What kind of connection error is shown here and why does iSER disconnect >> instead of blocking? >> > Is there some log before this part? > > Are you doing something on the target? In older tools if the target > returned a login error indicating it was not coming back iscsid would > logout the session destroying /dev/sdXs. I am not sure what is in > debian's code. > > The event reported by IB was: RDMA_CM_EVENT_DISCONNECTED iSCSI then reported: ISCSI_ERR_CONN_FAILED
Could this be related to the DMA unmapping issue? We'll try our 3.0.4 kernel with this patch. >> Oct 25 13:36:07 server14 kernel: [79490.310169] sd 6:0:0:215: >> [sdhi] Synchronizing SCSI cache >> Oct 25 13:36:07 server14 kernel: [79490.568167] iser: >> iser_cma_handler:event 10 status 0 conn ffff8807ff2a5a80 id ffff881 >> 00755f800 >> Oct 25 13:36:07 server14 kernel: [79490.568259] connection2:0: >> detected conn error (1011) >> Oct 25 13:36:07 server14 kernel: [79490.818577] iser: >> iscsi_iser_ep_disconnect:ib conn ffff8807ff2a5a80 state 3 >> Oct 25 13:36:07 server14 kernel: [79490.818944] iser: >> iser_free_ib_conn_res:freeing conn ffff8807ff2a5a80 cma_id ffff8810 >> 0755f800 fmr pool ffff8807ff305d00 qp ffff8807fe707e00 >> Oct 25 13:36:07 server14 kernel: [79490.863799] iser: >> iser_device_try_release:device ffff8807febc3140 refcount 0 >> >> The VMs need their storage block devices. These are removed although >> they are in use. >> >> We have pretty long device names (38 chars) and we use the device mapper >> (36 char names) to be able to perform storage live migration. >> >> The error occurred during normal operation. >> >> Thanks in advance! >> >> -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@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.
