[Bug 1503305] dmesg file

Fri Nov 13 22:19:21 UTC 2015

Default Comment by Bridge

** Attachment added: "dmesg file"
   https://bugs.launchpad.net/bugs/1503305/+attachment/4518512/+files/dmesg

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https://bugs.launchpad.net/bugs/1503305

Title:
  iLab: power kvm client after svc node reboot error inject test,
  multipath output show missing path and missing storage name

Status in multipath-tools package in Ubuntu:
  Fix Released
Status in multipath-tools source package in Trusty:
  In Progress
Status in multipath-tools source package in Vivid:
  In Progress
Status in multipath-tools source package in Wily:
  Fix Committed

Bug description:
  [Impact]
  Users of multipath will see incomplete output for the vendor and model values for devices where the first path is the path that is failed.

  [Test Cases]
  1) Experience a failed path:
  echo 1 > /sys/devices/<path to device>/delete
  (the above is an example for forcibly removing a path for SCSI via the /sys filesystem)
  2) run:  sudo multipath -ll
  3) Verify the output, see below.

  Storage name (vendor and model usually) should always be displayed
  after dm-* on the header line for a multipath device.

  [Regression Potential]
  This is limited to output and is thus purely a cosmetic fix. Possible issues leading from that fix would include crashes due to an incorrect patch or the output for vendor/model info for the device to still be incorrect.

  ----
  == Comment: #0 - Yueh Chyong Jackson <idaj at us.ibm.com> - 2015-01-27 16:54:58 ==
  ---Problem Description---
  power kvm client ubuntu ilp1fc85apA4 after error injection test (SVC node reboot), the multipath output show one path with #:#:#:#  and did not show the storage name:
  mpath6 (3600507680284066f1800000000000172) dm-6 , <---------(missing storage name)
  size=3.0G features='1 queue_if_no_path' hwhandler='0' wp=rw
  |-+- policy='round-robin 0' prio=50 status=active
  | |- #:#:#:# -    #:#    failed faulty running   <----------------------------------------
  | `- 4:0:7:0 sdbr 68:80  active ready  running
  `-+- policy='round-robin 0' prio=10 status=enabled
    |- 4:0:9:0 sdbq 68:64  active ready  running
    `- 3:0:7:0 sdby 68:192 active ready  running

  this is a storage IBM svc storage

  ---uname output---
  power kvm server: [root at ilp1fc85a ~]# uname -a Linux ilp1fc85a.tuc.stglabs.ibm.com 3.10.42-2018.1.pkvm2_1_1.46.ppc64 #1 SMP Fri  Oct 17 10:41:35 CDT 2014 ppc64 ppc64 ppc64 GNU/Linux,
  client uname : root at ilp1fc85apA4:~# uname -a Linux ilp1fc85apA4.tuc.stglabs.ibm.com 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:09:21 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux

  ---Additional Hardware Info---
  4 adapters, coho, bluefin, houston,houston FCoE, with following storages:
  DS8800,TMS, xiv gen2, svc V7k ,texan, texan FCoE, client  lun that use for running tests(data lun) are passthrough

  access to machines:
  power kvm server: ilp1fc85a 9.11.56.126 (ssh root/B!gm0ney)
  client: ilp1fc85apA4 9.11.56.72 (ssh root/B!gmoney)

  the logs are save at:
  ip: 9.11.56.167(root/teamw0rk), under file:
  /root/bflocal/CYCLE18/CheckHostStatus_V2/CYCLE18_226/scripts/9.11.56.72.hostcheck.CHS.svc_nr.stop.20150127073959

  ip: 9.11.56.168 (root/teamw0rk), under file:
  /PACKAGE/errlogs/Cycle18/SVC_NR/20150127081651/
  c_85_g.ilp1fc85apA4.SVC_NR.Cycle18.27Jan15.081758.tar.gz

  Machine Type = IBM Power System S824, product: 8286-42A,serial:
  10CD74T

  ---Debugger---
  A debugger is not configured

  Contact Information = ida jackson/idaj at us.ibm.com, cwchen at us.ibm.com

  Stack trace output:
   no

  Oops output:
   no

  System Dump Info:
    The system is not configured to capture a system dump.

  *Additional Instructions for ida jackson/idaj at us.ibm.com, cwchen at us.ibm.com:
  -Post a private note with access information to the mach
  ine that the bug is occuring on.
  -Attach sysctl -a output output to the bug.

  please let me know if other info is needed. thanks for looking into
  the problem

  == Comment: #9 - Vaishnavi Bhat <vaish123 at in.ibm.com> - 2015-02-11
  04:11:40 ==

  == Comment: #17 - Andrea M. Davis <amdavis at us.ibm.com> - 2015-03-03 17:57:51 ==
  Please update the bug with the specific Ubunutu release please Ida  or Chang.

  == Comment: #18 - Andrea M. Davis <amdavis at us.ibm.com> - 2015-03-03 17:57:56 ==
  Please update the bug with the specific Ubunutu release please Ida  or Chang.

  == Comment: #19 - Mauricio Faria De Oliveira <mauricfo at br.ibm.com> - 2015-03-04 08:17:23 ==
  This is Ubuntu 14.04 GA (14.04.0), using the ISO/DVD install (kernel 3.13.0-24).

  > client uname : root at ilp1fc85apA4:~# uname -a Linux
  ilp1fc85apA4.tuc.stglabs.ibm.com 3.13.0-24-generic #46-Ubuntu SMP Thu
  Apr 10 19:09:21 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux

  This version is way old (2014/04) for a bug reported on 2015/1, in
  Ubuntu's fast pace.

  Do the guest has any* other updates applied? (i.e., apt-get update && apt-get upgrade)
  It seems there are no kernel upgrades as well?(i.e., apt-get update && apt-get dist-upgrade)

  Any reason for not testing 14.04.1 or 14.04.2? (you can bump to it w/
  dist-upgrade)

  == Comment: #20 - Brian J. King <bjking1 at us.ibm.com> - 2015-03-04 10:11:57 ==
  (In reply to comment #19)
  > This is Ubuntu 14.04 GA (14.04.0), using the ISO/DVD install (kernel
  > 3.13.0-24).

  Also keep in mind that you need at *least* 14.04.1 in order to be able
  to do PCI passthrough with PowerKVM.

  == Comment: #29 - Gabriel Krisman Bertazi <gbertazi at br.ibm.com> - 2015-09-30 15:38:23 ==
  The attached patch should fix this issue.  Mauricio, please tell me what you think.

  == Comment: #30 - Mauricio Faria De Oliveira <mauricfo at br.ibm.com> - 2015-10-02 09:52:01 ==
  Gabriel,

  Looks good to me.
  Good discussion yesterday while traveling.

  Let's hear on dm-devel.

  Thanks!

  == Comment: #32 - Gabriel Krisman Bertazi <gbertazi at br.ibm.com> - 2015-10-06 08:28:24 ==
  Patch is applied to Christophe's tree. <https://www.redhat.com/archives/dm-devel/2015-October/msg00021.html>.

  Now, let's get it downstream into Ubuntu.

  == Comment: #34 - Gabriel Krisman Bertazi <gbertazi at br.ibm.com> - 2015-10-06 08:55:40 ==
  Christophe Varoqui applied this patch to his multipath-tools tree <https://www.redhat.com/archives/dm-devel/2015-October/msg00022.html>.

  We would like it to be backported to Ubuntu to close this bug.

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