This bug is awaiting verification that the linux-nvidia- tegra/6.8.0-1012.12 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-noble-linux-nvidia-tegra' to 'verification-done-noble-linux-nvidia-tegra'. If the problem still exists, change the tag 'verification-needed-noble-linux-nvidia-tegra' to 'verification-failed-noble-linux-nvidia-tegra'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-noble-linux-nvidia-tegra-v2 verification-needed-noble-linux-nvidia-tegra -- 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/2103415 Title: [25.04 FEAT] [post announcement] [KRN2304] CPU-MF Counters for new IBM Z hardware - perf part Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Won't Fix Status in linux source package in Jammy: Won't Fix Status in linux source package in Noble: Fix Committed Status in linux source package in Plucky: Fix Committed Status in linux source package in Questing: Won't Fix Bug description: [ Impact ] perf list: Add IBM z17 event descriptions Update IBM z17 counter description using document SA23-2260-08: "The Load-Program-Parameter and the CPU-Measurement Facilities" released in May 2025 to include counter definitions for IBM z17 counter sets: * Basic counter set * Problem/user counter set * Crypto counter set. Use document SA23-2261-09: "The CPU-Measurement Facility Extended Counters Definition for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15, z16 and z17" released on April 2025 to include counter definitions for IBM z17 * Extended counter set * MT-Diagnostic counter set. Use document SA22-7832-14: "z/Architecture Principles of Operation." released in April 2025 to include counter definitions for IBM z17 * PAI-Crypto counter set * PAI-Extention counter set. Use document "CPU MF Formulas and Updates April 2025" released in April 2025 to include metric calculations. [ Fix ] Backport the following upstream commit to Jammy, Noble and Plucky: - 508b228942b2 perf list: Add IBM z17 event descriptions Since Jammy is missing also IBM z16 descriptions, the following commits are needed too: - 7f76b3113068 perf list: Add IBM z16 event description for s390 - 74395567a301 perf vendor events s390: Add common metrics - 850eea236f8a perf vendor events s390: Add cache metrics for z13 - add7894a25d1 perf vendor events s390: Add cache metrics for z14 - bdecfecac8ab perf vendor events s390: Add cache metrics for z15 - f8a6cea4839b perf vendor events s390: Add cache metrics for z16 - 4c290d4fa3ae perf vendor events s390: Add metric for TLB and cache - eb2feb68cb7d perf vendor events s390: Remove UTF-8 characters from JSON file - b6968f9b5035 perf list: fix short description for some cache events - c2f3d7dfc737 perf stat: Do not fail on metrics on s390 z/VM systems - b74bc5a633a7 perf report: Fix PAI counter names for s390 virtual machines - 508b228942b2 perf list: Add IBM z17 event descriptions [ Test Plan ] Boot a z17 instance and verify that z17-specific events appear in perf list: $ perf list [ Regression Potential ] The regression potential of this patch is very low, since it only adds IBM z17-specific perf event descriptions without touching core perf or kernel logic. Any issues would be limited to inaccurate or unsupported counters on z17 systems, with no impact on other architectures. --- Feature Description: Support for CPU-MF counters of new IBM Z hardware in kernel, s390-tools, perf (kernel) and libpfm4. This part covers the perf tools changes. The related patches / commit IDs will be provided as soon as the required information has been publicly disclosed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/2103415/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
