This is not a kernel error; it's a bug in stress-ng when running with the --verify option on systems where memory is low and EAGAIN or ENOMEM occurs. I've fixed this in stress-ng with commit:
http://kernel.ubuntu.com/git/cking/stress- ng.git/commit/?id=8ab0ac7ce995517c0cb10dddddb60bee5a19b7b8 Do you mind running a re-test to see if this fixes the issue. Apologies for this stress-ng bug. My bad. ** Changed in: stress-ng Importance: Undecided => High ** Changed in: stress-ng Assignee: (unassigned) => Colin Ian King (colin-king) ** Changed in: stress-ng Status: New => In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1788385 Title: vfork in ubuntu_stress_smoke test failed on KVM node with B-KVM kernel Status in Stress-ng: In Progress Status in ubuntu-kernel-tests: New Status in linux-kvm package in Ubuntu: New Bug description: Fail rate 2 out of 2, failed on a kvm node "gummo", with 1G ram uname -vr : 4.15.0-1020-kvm #20-Ubuntu SMP Thu Aug 16 16:46:26 UTC 2018 Bionic 18.04 arch: amd64 DEBUG - 11:24:24 DEBUG| [stdout] vfork STARTING DEBUG - 11:24:24 DEBUG| [stdout] vfork STARTING DEBUG - 11:24:26 DEBUG| [stdout] vfork RETURNED 2 DEBUG - 11:24:26 DEBUG| [stdout] vfork RETURNED 2 DEBUG - 11:24:26 DEBUG| [stdout] vfork FAILED DEBUG - 11:24:26 DEBUG| [stdout] vfork FAILED DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] 2 processors online, 2 processors configured DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] 2 processors online, 2 processors configured DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: info: [1437] dispatching hogs: 4 vfork DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: info: [1437] dispatching hogs: 4 vfork DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] cache allocate: reducing cache level from L3 (too high) to L2 DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] cache allocate: reducing cache level from L3 (too high) to L2 DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] cache allocate: default cache size: 4096K DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] cache allocate: default cache size: 4096K DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] starting stressors DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] starting stressors DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1438] stress-ng-vfork: started [1438] (instance 0) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1438] stress-ng-vfork: started [1438] (instance 0) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] 4 stressors spawned DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] 4 stressors spawned DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1439] stress-ng-vfork: started [1439] (instance 1) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1439] stress-ng-vfork: started [1439] (instance 1) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1440] stress-ng-vfork: started [1440] (instance 2) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1440] stress-ng-vfork: started [1440] (instance 2) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1441] stress-ng-vfork: started [1441] (instance 3) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1441] stress-ng-vfork: started [1441] (instance 3) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1441] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1441] stress-ng-vfork: exited [1441] (instance 3) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1441] stress-ng-vfork: exited [1441] (instance 3) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1440] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1440] stress-ng-vfork: exited [1440] (instance 2) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1440] stress-ng-vfork: exited [1440] (instance 2) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1438] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1438] stress-ng-vfork: exited [1438] (instance 0) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1438] stress-ng-vfork: exited [1438] (instance 0) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: fail: [1439] stress-ng-vfork: fork failed DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] info: 5 failures reached, aborting stress process DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1438 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1438 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1438] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1438] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1439] stress-ng-vfork: exited [1439] (instance 1) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1439] stress-ng-vfork: exited [1439] (instance 1) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1439 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1439 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1439] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1439] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1440 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1440 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1440] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1440] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1441 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: error: [1437] process 1441 (stress-ng-vfork) terminated with an error, exit status=1 (stress-ng core failure) DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1441] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: debug: [1437] process [1441] terminated DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: info: [1437] unsuccessful run completed in 1.49s DEBUG - 11:24:26 DEBUG| [stdout] stress-ng: info: [1437] unsuccessful run completed in 1.49s To manage notifications about this bug go to: https://bugs.launchpad.net/stress-ng/+bug/1788385/+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
