Public bug reported: == Comment: #0 - Vaibhav Jain <vajai...@in.ibm.com> - 2018-04-09 04:58:46 == ---Problem Description--- CXL driver reports a warning message when performing cache flush. This is due to data-cache not present on some of the CAPI adapters hence the data-cache operation fails and results in this error.
"WARNING: cache flush timed out" Contact Information = Vaibha Jain <vajai...@in.ibm.com> ---uname output--- 4.15.0-12-generic ---Additional Hardware Info--- Nallatech Flash GT+ adapter Machine Type = Boston-LC ---Debugger--- A debugger is not configured ---Steps to Reproduce--- * Make sure that cxl module is loaded * Issue command 'rmmod cxl' Error seen in the kernel logs: dmesg [ 1203.791963] pci_bus 0006:00: busn_res: [bus 00] is released [ 1203.792096] cxl afu0.0: Deactivating AFU directed mode [ 1208.792711] cxl card0: WARNING: cache flush timed out! The fix for this issue was merged to the mainline kernel via commit: 94322ed8e857 cxl: Check if PSL data-cache is available before issue flush request == Comment: #3 - Vaibhav Jain <vajai...@in.ibm.com> - 2018-04-09 05:02:20 == The fix for this issue was merged to the mainline kernel via commit: 94322ed8e857 cxl: Check if PSL data-cache is available before issue flush request ** Affects: ubuntu-power-systems Importance: High Assignee: Canonical Kernel Team (canonical-kernel-team) Status: New ** Affects: kernel-package (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64le bugnameltc-166538 severity-high targetmilestone-inin1804 triage-g ** Tags added: architecture-ppc64le bugnameltc-166538 severity-high targetmilestone-inin1804 ** Changed in: ubuntu Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Package changed: ubuntu => kernel-package (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1762367 Title: Warning "cache flush timed out!" seen when unloading the cxl driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1762367/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs