From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 111441] iscsi fails to attach to targets
Date: Fri, 29 Jan 2016 22:21:59 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=3D111441
--- Comment #7 from Serguei Bezverkhi ---
HI Mike,
I tried your patch and it is has eliminated first traceback but I still=
do not
see my remote targets.
Here is dmesg
[ 26.103812] scsi 3:0:0:2: Direct-Access LIO-ORG san-disk-2 =
4.0=20
PQ: 0 ANSI: 5
[ 26.104338] sd 3:0:0:2: alua: supports implicit and explicit TPGS
[ 26.104549] sd 3:0:0:2: alua: No target port descriptors found
[ 26.104552] sd 3:0:0:2: alua: Attach failed (-22)
[ 26.104554] sd 3:0:0:2: failed to add device handler: -22
[ 26.104578] sd 3:0:0:2: [sdc] 20507809792 512-byte logical blocks: (=
10.4
TB/9.54 TiB)
[ 26.104905] sd 3:0:0:2: [sdc] Write Protect is off
[ 26.104908] sd 3:0:0:2: [sdc] Mode Sense: 43 00 10 08
[ 26.105036] sd 3:0:0:2: [sdc] Write cache: enabled, read cache: enab=
led,
supports DPO and FUA
[ 26.112294] scsi host6: iSCSI Initiator over TCP/IP
[ 26.113279] scsi 4:0:0:3: Direct-Access LIO-ORG san-disk-3 =
4.0=20
PQ: 0 ANSI: 5
[ 26.113690] sd 4:0:0:3: alua: supports implicit and explicit TPGS
[ 26.113877] sd 4:0:0:3: [sdd] 9765625856 512-byte logical blocks: (5=
=2E00
TB/4.54 TiB)
[ 26.113948] sd 4:0:0:3: alua: No target port descriptors found
[ 26.113951] sd 4:0:0:3: alua: Attach failed (-22)
[ 26.113953] sd 4:0:0:3: failed to add device handler: -22
[ 26.114292] sd 4:0:0:3: [sdd] Write Protect is off
[ 26.114295] sd 4:0:0:3: [sdd] Mode Sense: 43 00 10 08
[ 26.114503] sd 4:0:0:3: [sdd] Write cache: enabled, read cache: enab=
led,
supports DPO and FUA
[ 26.123875] scsi 5:0:0:1: Direct-Access LIO-ORG san-disk-1 =
4.0=20
PQ: 0 ANSI: 5
[ 26.123911] scsi 6:0:0:4: Direct-Access LIO-ORG san-disk-4 =
4.0=20
PQ: 0 ANSI: 5
[ 26.124452] sd 6:0:0:4: alua: supports implicit and explicit TPGS
[ 26.124453] sd 5:0:0:1: alua: supports implicit and explicit TPGS
[ 26.124724] sd 5:0:0:1: alua: No target port descriptors found
[ 26.124727] sd 5:0:0:1: alua: Attach failed (-22)
[ 26.124728] sd 5:0:0:1: failed to add device handler: -22
[ 26.124736] sd 6:0:0:4: [sde] 10742171648 512-byte logical blocks: (=
5.49
TB/5.00 TiB)
[ 26.124773] sd 5:0:0:1: [sdf] 7812499389 512-byte logical blocks: (3=
=2E99
TB/3.63 TiB)
[ 26.124777] sd 6:0:0:4: alua: No target port descriptors found
[ 26.124779] sd 6:0:0:4: alua: Attach failed (-22)
[ 26.124780] sd 6:0:0:4: failed to add device handler: -22
[ 26.125182] sd 5:0:0:1: [sdf] Write Protect is off
[ 26.125184] sd 5:0:0:1: [sdf] Mode Sense: 43 00 10 08
[ 26.125217] sd 6:0:0:4: [sde] Write Protect is off
[ 26.125220] sd 6:0:0:4: [sde] Mode Sense: 43 00 10 08
[ 26.125306] sd 5:0:0:1: [sdf] Write cache: enabled, read cache: enab=
led,
supports DPO and FUA
[ 26.125512] sd 6:0:0:4: [sde] Write cache: enabled, read cache: enab=
led,
supports DPO and FUA
[ 26.129633] sdf: sdf1
[ 26.130637] sd 5:0:0:1: [sdf] Attached SCSI disk
[ 26.144377] ixgbe 0000:04:00.0: registered PHC device on enp4s0f0
[ 26.149072] sdc: sdc1
[ 26.150434] sd 3:0:0:2: [sdc] Attached SCSI disk
[ 26.190709] sdd: sdd1 sdd2
[ 26.193348] sd 4:0:0:3: [sdd] Attached SCSI disk
[ 26.230515] sde: sde1
[ 26.231674] sd 6:0:0:4: [sde] Attached SCSI disk
[ 26.231987] sd 6:0:0:4: [sde] Synchronizing SCSI cache
[ 26.232021] sd 5:0:0:1: [sdf] Synchronizing SCSI cache
[ 26.233212] sd 3:0:0:2: [sdc] Synchronizing SCSI cache
[ 26.233440] sd 4:0:0:3: [sdd] Synchronizing SCSI cache
[ 26.236755] Buffer I/O error on dev sdc, logical block 2563476132, a=
sync
page read
[ 26.238897] Buffer I/O error on dev sdd, logical block 1220703182, a=
sync
page read
[ 26.245773] ixgbe 0000:04:00.1: SR-IOV enabled with 8 VFs
[ 26.245775] ixgbe 0000:04:00.1: configure port vlans to keep your VF=
s secure
[ 26.274544] scsi 6:0:0:0: Unexpected response from lun 4 while scann=
ing,
scan aborted
[ 26.283173] scsi 3:0:0:0: Unexpected response from lun 2 while scann=
ing,
scan aborted
[ 26.288571] scsi 4:0:0:0: Unexpected response from lun 3 while scann=
ing,
scan aborted
[ 26.288618] scsi 5:0:0:0: Unexpected response from lun 1 while scann=
ing,
scan aborted
Second traceback is gone too, but still no luck attaching local iscsi t=
argets
either.
[ 639.148875] TARGET_CORE[iSCSI]: Expected Transfer Length: 264 does n=
ot match
SCSI CDB Length: 8 for SAM Opcode: 0x12
[ 639.148911] sd 7:0:0:0: [sdc] 115343360 512-byte logical blocks: (59=
=2E0
GB/55.0 GiB)
[ 639.148925] sd 7:0:0:0: alua: No target port descriptors found
[ 639.148928] sd 7:0:0:0: alua: Attach failed (-22)
[ 639.149186] sd 7:0:0:0: [sdc] Write Protect is off
[ 639.149188] sd 7:0:0:0: [sdc] Mode Sense: 43 00 10 08
[ 639.149279] sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enab=
led,
supports DPO and FUA
[ 639.149298] iSCSI/iqn.1994-05.com.redhat:cf7f1fafca4b: Unsupported S=
CSI
Opcode 0xa3, sending CHECK_CONDITION.
[ 639.149530] sd 7:0:0:0: failed to add device handler: -22
[ 639.154762] sd 7:0:0:0: [sdc] Attached SCSI disk
[ 639.154857] sd 7:0:0:0: [sdc] Synchronizing SCSI cache
[ 655.279047] scsi 7:0:0:0: Direct-Access LIO-ORG IBLOCK =
4.0=20
PQ: 0 ANSI: 5
[ 655.279397] sd 7:0:0:0: alua: supports implicit and explicit TPGS
[ 655.279503] TARGET_CORE[iSCSI]: Expected Transfer Length: 264 does n=
ot match
SCSI CDB Length: 8 for SAM Opcode: 0x12
[ 655.279533] sd 7:0:0:0: alua: No target port descriptors found
[ 655.279535] sd 7:0:0:0: alua: Attach failed (-22)
[ 655.279587] sd 7:0:0:0: [sdc] 115343360 512-byte logical blocks: (59=
=2E0
GB/55.0 GiB)
[ 655.279848] sd 7:0:0:0: [sdc] Write Protect is off
[ 655.279849] sd 7:0:0:0: [sdc] Mode Sense: 43 00 10 08
[ 655.279981] sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enab=
led,
supports DPO and FUA
[ 655.280034] iSCSI/iqn.1994-05.com.redhat:cf7f1fafca4b: Unsupported S=
CSI
Opcode 0xa3, sending CHECK_CONDITION.
[ 655.280171] sd 7:0:0:0: failed to add device handler: -22
[ 655.286008] sd 7:0:0:0: [sdc] Attached SCSI disk
[ 655.286132] sd 7:0:0:0: [sdc] Synchronizing SCSI cache
Serguei Bezverkhi,
TECHNICAL LEADER.SERVICES
Global SP Services
sbezverk@cisco.com
Phone:=C2=A0+1 416 306 7312
Mobile:=C2=A0+1 514 234 7374
CCIE (R&S,SP,Sec) - #9527
Cisco.com
=C2=A0Think before you print.
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-----Original Message-----
=46rom: Mike Christie [mailto:michaelc@cs.wisc.edu]=20
Sent: Friday, January 29, 2016 2:27 PM
To: Serguei Bezverkhi (sbezverk)
Cc: bugzilla-daemon@bugzilla.kernel.org; linux-scsi@vger.kernel.org
Subject: Re: [Bug 111441] New: iscsi fails to attach to targets
On 01/29/2016 01:11 PM, Serguei Bezverkhi (sbezverk) wrote:
> If you send me the diff for your patch, I will build new kernel mysel=
f.
>=20
Bugzilla must be messing something up. I attached to one of the previou=
s mails.
Attaching it here again.
Email me offlist and without bugzilla if you do not get it here.
The patch will fix the syfs bug ons you are hitting.
I am not sure if it will fix the genhd one. We can deal with that one n=
ext if
it is a different issue.
> Serguei
>=20
>=20
> Serguei Bezverkhi,
> TECHNICAL LEADER.SERVICES
> Global SP Services
> sbezverk@cisco.com
> Phone: +1 416 306 7312
> Mobile: +1 514 234 7374
>=20
> CCIE (R&S,SP,Sec) - #9527
>=20
> Cisco.com
>=20
>=20
>=20
> Think before you print.
> This email may contain confidential and privileged material for the s=
ole use of the intended recipient. Any review, use, distribution or dis=
closure by others is strictly prohibited. If you are not the intended r=
ecipient (or authorized to receive for the recipient), please contact t=
he sender by reply email and delete all copies of this message.
> Please click here for Company Registration Information.
>=20
>=20
>=20
>=20
> -----Original Message-----
> From: Michael Christie [mailto:michaelc@cs.wisc.edu]
> Sent: Friday, January 29, 2016 2:09 PM
> To: Serguei Bezverkhi (sbezverk)
> Cc: bugzilla-daemon@bugzilla.kernel.org; linux-scsi@vger.kernel.org
> Subject: Re: [Bug 111441] New: iscsi fails to attach to targets
>=20
>=20
>> On Jan 29, 2016, at 6:04 AM, Serguei Bezverkhi (sbezverk) wrote:
>>
>> Actually this server uses both cases: Local taregts (since it is Ope=
nStack server) and remote targets as it tries to mount 4 remotefile sys=
tems. =20
>>
>> You are correct, I always use the same box I just change the kernel =
it is using to boot. No other changes to the environment. I do not mind=
to load a test kernel without that suspected patch, just get me the RP=
M.
>>
>=20
> I do not know what you mean. I think the patch I sent will fix the sy=
sfs errors caused due to alua not being setup properly on your system a=
nd scsi_dh_alua failing to attach. That patch should be applied to the =
4.4 upstream kernel. Are you saying you want me to make you a kernel rp=
m?
> --
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