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[Bug 1853375] Re: net selftest psock_fanout fails on xenial s390x due to incorrect queue lengths

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>
Date: Fri, 10 Jan 2020 11:25:11 -0000
Reply-to: Bug 1853375 <1853375@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
I can confirm that this issue can be found on Xenial KVM kernel,
psock_fanout test fail rate 44 out of 100 tests.


** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Po-Hsu Lin (cypressyew)

** Changed in: ubuntu-kernel-tests
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1853375

Title:
  net selftest psock_fanout fails on xenial s390x due to incorrect queue
  lengths

Status in ubuntu-kernel-tests:
  In Progress
Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Xenial:
  In Progress
Status in linux source package in Bionic:
  In Progress

Bug description:
  s390x:
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
  /autopkgtest-xenial/xenial/s390x/l/linux/20191114_180123_738a0@/log.gz

  Here's the relevant excerpt:

  17:34:26 DEBUG| [stdout] --------------------
  17:34:26 DEBUG| [stdout] running psock_fanout test
  17:34:26 DEBUG| [stdout] --------------------
  17:34:26 ERROR| [stderr] test: control single socket
  17:34:27 ERROR| [stderr] test: control multiple sockets
  17:34:27 ERROR| [stderr] test: datapath 0x0
  17:34:27 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:27 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: trying alternate ports (4)
  17:34:27 ERROR| [stderr] test: datapath 0x0
  17:34:27 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:27 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: trying alternate ports (3)
  17:34:27 ERROR| [stderr] test: datapath 0x0
  17:34:27 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:27 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: trying alternate ports (2)
  17:34:27 ERROR| [stderr] test: datapath 0x0
  17:34:27 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:27 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:27 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:27 ERROR| [stderr] info: trying alternate ports (1)
  17:34:27 ERROR| [stderr] test: datapath 0x0
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: trying alternate ports (0)
  17:34:28 ERROR| [stderr] test: datapath 0x0
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] test: datapath 0x1000
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: trying alternate ports (0)
  17:34:28 ERROR| [stderr] test: datapath 0x0
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: count=20,0, expect=20,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] test: datapath 0x1000
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=20,0, expect=15,5
  17:34:28 ERROR| [stderr] ERROR: incorrect queue lengths
  17:34:28 ERROR| [stderr] info: count=20,15, expect=20,15
  17:34:28 ERROR| [stderr] test: datapath 0x1
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=10,10, expect=10,10
  17:34:28 ERROR| [stderr] info: count=18,17, expect=18,17
  17:34:28 ERROR| [stderr] test: datapath 0x3
  17:34:28 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:28 ERROR| [stderr] info: count=15,5, expect=15,5
  17:34:28 ERROR| [stderr] info: count=20,15, expect=20,15
  17:34:28 ERROR| [stderr] test: datapath 0x6
  17:34:29 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:29 ERROR| [stderr] info: count=5,15, expect=15,5
  17:34:29 ERROR| [stderr] info: count=20,15, expect=15,20
  17:34:29 ERROR| [stderr] test: datapath 0x7
  17:34:29 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:29 ERROR| [stderr] info: count=5,15, expect=15,5
  17:34:29 ERROR| [stderr] info: count=20,15, expect=15,20
  17:34:29 ERROR| [stderr] test: datapath 0x2
  17:34:29 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:29 ERROR| [stderr] info: count=20,0, expect=20,0
  17:34:29 ERROR| [stderr] info: count=20,0, expect=20,0
  17:34:29 ERROR| [stderr] test: datapath 0x2
  17:34:29 ERROR| [stderr] info: count=0,0, expect=0,0
  17:34:29 ERROR| [stderr] info: count=0,20, expect=0,20
  17:34:29 ERROR| [stderr] info: count=0,20, expect=0,20
  17:34:29 DEBUG| [stdout] [FAIL]

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