** Description changed: - SRU Request [Cosmic] + SRU Request [Bionic, Cosmic] == Justification == When running stress-ng with the revio stressor, the FIEMAP ioctl is failing and causing the stress test to fail because the ioctl is being passed non-zero'd data from the stack. == Fix == Upstream commit http://kernel.ubuntu.com/git/cking/stress- ng.git/commit/?id=3784579562506d0b5f3d071aea10bb3dbc9f45d6 == Testing == On a ARM64 system run: stress-ng --revio 1 Without the fix the revio stress test will randomly fail depending on the garbage on the stack. With the fix the stress test will run successfully. - == Regression Potential == Minimal, this affects just the revio stress test and is a simple memory zero'ing fix of a struct being passed to the FIEMAP ioctl. Regression potential is negligible. - -------------------- On a ThunderX Cavium ARM64 node, with kernel: 4.15.0-36-generic #39~16.04.1-Ubuntu and the proposed 4.15.0-38-generic #41~16.04.1-Ubuntu The revio test in ubuntu_stress_smoke_test will fail with: revio STARTING revio RETURNED 2 revio FAILED stress-ng: debug: [4771] 48 processors online, 48 processors configured stress-ng: info: [4771] dispatching hogs: 4 revio stress-ng: info: [4771] cache allocate: using built-in defaults as unable to determine cache details stress-ng: debug: [4771] cache allocate: default cache size: 2048K stress-ng: debug: [4771] starting stressors stress-ng: debug: [4772] stress-ng-revio: started [4772] (instance 0) stress-ng: debug: [4773] stress-ng-revio: started [4773] (instance 1) stress-ng: debug: [4771] 4 stressors spawned stress-ng: debug: [4774] stress-ng-revio: started [4774] (instance 2) stress-ng: debug: [4775] stress-ng-revio: started [4775] (instance 3) stress-ng: fail: [4774] (null): open failed, errno=2 (No such file or directory) stress-ng: fail: [4775] (null): open failed, errno=2 (No such file or directory) stress-ng: fail: [4774] (null): rmdir './tmp-(null)-0-6' failed, errno=2 (No such file or directory) stress-ng: fail: [4775] (null): rmdir './tmp-(null)-0-6' failed, errno=2 (No such file or directory) stress-ng: fail: [4773] (null): rmdir './tmp-(null)-0-6' failed, errno=2 (No such file or directory) stress-ng: fail: [4772] (null): rmdir './tmp-(null)-0-6' failed, errno=2 (No such file or directory) stress-ng: debug: [4771] process [4772] (stress-ng-revio) terminated on signal: 6 (Aborted) stress-ng: debug: [4771] process [4772] terminated stress-ng: debug: [4771] process [4773] (stress-ng-revio) terminated on signal: 6 (Aborted) stress-ng: debug: [4771] process [4773] terminated stress-ng: debug: [4771] process [4774] (stress-ng-revio) terminated on signal: 6 (Aborted) stress-ng: debug: [4771] process [4774] terminated stress-ng: debug: [4771] process [4775] (stress-ng-revio) terminated on signal: 6 (Aborted) stress-ng: debug: [4771] process [4775] terminated stress-ng: info: [4771] unsuccessful run completed in 0.76s ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.15.0-36-generic 4.15.0-36.39~16.04.1 ProcVersionSignature: User Name 4.15.0-36.39~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-36-generic aarch64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: arm64 Date: Thu Oct 18 09:08:59 2018 SourcePackage: linux-hwe UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798566 Title: revio in ubuntu_stress_smoke_test failed with ARM64 X-hwe-edge To manage notifications about this bug go to: https://bugs.launchpad.net/stress-ng/+bug/1798566/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
