------- Comment From muri...@br.ibm.com 2020-01-24 08:36 EDT------- (In reply to comment #16) > IBM, > > Please test the Disco kernel available in > https://launchpad.net/~ubuntu-power-triage/+archive/ubuntu/lp1854071/ > > Also, please share following details > > 1. What impact does it have without these patches?
Anju and Madhavan, As authors of these patches, could you please help Canonical understand the impact of such patches? > 2. The testcase used, and how to run the tests. Example of commands to read trace_imc events: # perf kvm record -e trace_imc/trace_cycles <application> # perf kvm record -e trace_cycles # perf record -e trace_imc/trace_cycles <application> > > Thanks Thank you! Murilo -- 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/1854071 Title: Backport In-Memory Collection Counters (IMC) trace-mode patches Status in The Ubuntu-power-systems project: Incomplete Status in linux package in Ubuntu: Incomplete Status in linux source package in Disco: Incomplete Bug description: == Comment: #0 - Murilo Opsfelder Araujo - 2019-11-08 06:30:06 == ---Problem Description--- The following patches may be wanted in >= Bionic kernels: 1. powerpc/include: Add data structures and macros for IMC trace mode https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=d1720adff3783a2ba7c128e304a385d18962835b 2. powerpc/perf: Rearrange setting of ldbar for thread-imc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=dd50cf7cbc7bdd86483b797ac3d27b37d5aeeaa4 3. powerpc/perf: Add privileged access check for thread_imc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=216c3087a346db8d7c8a064d2b8f0f49e4694934 4. powerpc/perf: Trace imc events detection and cpuhotplug https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=72c69dcddce103338de558c5c6e9ef9e4f607ce1 5. powerpc/perf: Trace imc PMU functions https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=012ae244845f19d5f6ca2a90426851bc5044a0dc Patch #3 addresses a security issue. ---uname output--- na Machine Type = na ---Debugger--- A debugger is not configured Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. == Comment: #12 - Murilo Opsfelder Araujo - 2019-11-22 07:41:20 == Please mirror to Canonical to backporting this single patch for >= Bionic kernels (or for which kernels they find appropriate): https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=216c3087a346db8d7c8a064d2b8f0f49e4694934 commit 216c3087a346db8d7c8a064d2b8f0f49e4694934 Author: Madhavan Srinivasan <ma...@linux.vnet.ibm.com> Date: Tue Apr 16 15:18:29 2019 +0530 powerpc/perf: Add privileged access check for thread_imc To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1854071/+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
