Hi,
We upgraded from SLES 10 SP2 (x86_64) to SLES 10 SP3 (x86_64) which caused our
open-iscsi to iscsitarget connections to fail. Downgrading to the SP2 kernel
makes it work again. Using the SP3 kernel running we see:
# iscsiadm -m node -P1
Target: iqn.2008-02.xenstorenet.nessie:arup301
Portal: 10.10.10.1:3260,1
Iface Name: default
# iscsiadm -m node --login
Logging in to [iface: default, target: iqn.2008-02.xenstorenet.nessie:arup301,
portal: 10.10.10.1,3260]
This now hangs for quite a long time and then returns the message:
Login to [iface: default, target: iqn.2008-02.xenstorenet.nessie:arup301,
portal: 10.10.10.1,3260]: successful
However it hasn't actually worked! dmesg shows these messages:
Loading iSCSI transport class v2.0-724.
iscsi: registered transport (tcp)
scsi17 : iSCSI Initiator over TCP/IP
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
17:0:0:0: timing out command, waited 22s
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
connection5:0: iscsi: detected conn error (1011)
And the session state is:
# iscsiadm -m session -P3
iSCSI Transport Class version 2.0-724
iscsiadm version 2.0-868
Target: iqn.2008-02.xenstorenet.nessie:arup301
Current Portal: 10.10.10.1:3260,1
Persistent Portal: 10.10.10.1:3260,1
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.2008-02.xenstorenet.hydra:redstone
Iface IPaddress: 10.10.10.2
Iface HWaddress: default
Iface Netdev: default
SID: 5
iSCSI Connection State: TRANSPORT WAIT
iSCSI Session State: Unknown
Internal iscsid Session State: REPOEN
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 65536
MaxXmitDataSegmentLength: 65536
FirstBurstLength: 262144
MaxBurstLength: 1048576
ImmediateData: Yes
InitialR2T: No
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 17 State: running
As you can see there is no device attached (normally appears on the last
line)...
Now dmesg continues to fill up with these errors:
connection5:0: iscsi: detected conn error (1011)
And after waiting for a while longer the state changes to:
# iscsiadm -m session -P3
iSCSI Transport Class version 2.0-724
iscsiadm version 2.0-868
Target: iqn.2008-02.xenstorenet.nessie:arup301
Current Portal: 10.10.10.1:3260,1
Persistent Portal: 10.10.10.1:3260,1
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.2008-02.xenstorenet.hydra:redstone
Iface IPaddress: 10.10.10.2
Iface HWaddress: default
Iface Netdev: default
SID: 5
iSCSI Connection State: LOGGED IN
iSCSI Session State: Unknown
Internal iscsid Session State: NO CHANGE
************************
Negotiated iSCSI params:
************************
HeaderDigest: CRC32C
DataDigest: CRC32C
MaxRecvDataSegmentLength: 65536
MaxXmitDataSegmentLength: 65536
FirstBurstLength: 262144
MaxBurstLength: 1048576
ImmediateData: Yes
InitialR2T: No
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 17 State: running
But still no device attached and the logs continue to fill up with the same
errors:
connection5:0: iscsi: detected conn error (1011)
This problem occurs on all SLES 10 SP3 kernels (x86_64, -smp variety) that I
have tried and works on all kernels before SP3.
If I upgrade the iscsi target to the latest version (not the one that comes
with SLES 10) then it behaves the same way (i.e. works on kernels before SP3
and does not work on SP3 kernels) but I also get an additional error message in
the dmesg output straight after the "timing out command" like this:
connection2:0: iscsi: detected conn error (1011)
12:0:0:0: timing out command, waited 22s
scsi scan: 64 byte inquiry failed. Consider BLIST_INQUIRY_36 for this device
connection2:0: iscsi: detected conn error (1011)
Any ideas?
Thanks a lot in advance!
PS. We have filed an official support request but they are being less than
helpful just telling me that it works for them. )-:
Best regards,
Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer, http://www.linux-ntfs.org/
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