[Bug 1503305] Re: iLab: power kvm client after svc node reboot error inject test, multipath output show missing path and missing storage name

Tue Nov 3 22:48:16 UTC 2015

I'm ready to apply the patch, but doing this on 14.04 right now would
likely mean further delays for another stable update in progress. I'd
rather wait until that update is done and fully verified (waiting for a
confirmation from mauricfo) before adding a new patch to go through the
SRU process.

I can however apply this now to the devel release and to 15.04 and
15.10.

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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:
  In Progress

Bug description:
  == 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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