I built Xenial, Artful and Bionic test kernels with commit 4bbaf2584b86b0772413edeac22ff448f36351b1.
The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1772593 Can you test this kernel and see if it resolves this bug? Note about installing test kernels: • If the test kernel is prior to 4.15(Bionic) you need to install the linux-image and linux-image-extra .deb packages. • If the test kernel is 4.15(Bionic) or newer, you need to install the linux-modules, linux-modules-extra and linux-image-unsigned .deb packages. Thanks in advance! -- 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/1772593 Title: cpum_sf: ensure sample freq is non-zero Status in Ubuntu on IBM z Systems: New Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Artful: In Progress Status in linux source package in Bionic: In Progress Status in linux source package in Cosmic: In Progress Bug description: Description: cpum_sf: ensure sample freq is non-zero Symptom: A kernel crash might occur. Problem: An FP divide exception during the sample rate initialization for the hardware sampling facility. Solution: Ensure that the sample frequency of the perf event attribute is non-zero. Reproduction: Run trinity against the perf_event_open() syscall. Upstream-ID: 4bbaf2584b86b0772413edeac22ff448f36351b1 Component: kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1772593/+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
