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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Dec 2024 15:45:48.8885 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a01b7db6-2cc0-4c5b-5eb2-08dd210d6041 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM2PEPF0001C70E.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR08MB8682 > > It works. but what about this? > > > > diff --git a/kernel/events/core.c b/kernel/events/core.c > > index 065f9188b44a..71ed8f847b04 100644 > > --- a/kernel/events/core.c > > +++ b/kernel/events/core.c > > @@ -2432,6 +2432,7 @@ __perf_remove_from_context(struct perf_event *event, > > if (flags & DETACH_DEAD) > > event->pending_disable = 1; > > event_sched_out(event, ctx); > > + perf_event_update_time(event); > > if (flags & DETACH_GROUP) > > perf_group_detach(event); > > if (flags & DETACH_CHILD) > > Well, the rule is that timekeeping is tied to state change. And as you > can see __perf_remove_from_context() violates that. > > Probably because someone (probably me) figured that the event would not > be observed again after detach or something like that. > Ah. Thanks to let me know to think this rule. I agree with your last suggestion. Could I send patch with it again? Thanks