On Tue, Jun 29, 2021 at 12:45:20PM +0530, kajoljain wrote:
On 6/28/21 3:47 PM, Kajol Jain wrote:
The performance reporting driver added cpu hotplug feature but it didn't add pmu migration call in cpu offline function. This can create an issue incase the current designated cpu being used to collect fme pmu data got offline, as based on current code we are not migrating fme pmu to new target cpu. Because of that perf will still try to fetch data from that offline cpu and hence we will not get counter data.
Patch fixed this issue by adding pmu_migrate_context call in fme_perf_offline_cpu function.
Adding stable@vger.kernel.org in cc list as suggested by Moritz Fischer.
<formletter>
This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly.
</formletter>