Test passed with Bionic 4.15.0-87.87 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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: Fix Released Status in linux source package in Xenial: Fix Committed Status in linux source package in Bionic: Fix Committed Bug description: == SRU Justification == The psock_fanout test is not very stable, stress tests shows a high fail rate here: * X - 44 failures out of 100, with 4.4 kernel on a KVM node * B - 33 failures out of 100, with 4.15 kernel on a KVM node This is because of the unrelated background traffic which should be filtered out. Also, the error message, "ERROR: incorrect queue lengths", is a bit misleading. You can see this even the test has passed, it's not the real cause of the failure. This message has been changed to "warning: incorrect queue lengths" later. == Fix == 1. 2e7a7217 (selftests/net: cleanup unused parameter in psock_fanout) 2. cc30c93f (selftests/net: ignore background traffic in psock_fanout) The first patch has already landed in Bionic, and it can be cherry-picked into Xenial. The second one needs to be backported to Xenial, but it can be applied to Bionic with git am -C2. == Test == Patch tested directly on 4.4 / 4.15 KVM nodes. Stress tested 100 times with: i=0 for idx in $(seq 1 100) do sudo ./psock_fanout &> /dev/null [ $? != 0 ] && i=$((i+1)) done echo $i All tests have passed without any failure. == Regression Potential == Low, change limited to testing tools, not affecting actual kernel functionality. == Original Bug Report == 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] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1853375/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
