Question on perf event context swap at process switch

[Ravi Bangoria]

Hi Peter,

Consider two processes having clone contexts (for example, two children of
the same parent). While process switch between these two, the perf event
context would get swapped but event->hw.target will point to other sibling's
task_struct. If that process exit just after one context swap, _free_event()
will call put_task_context() on sibling process' task_struct. Wouldn't it
result into fatal error later?

Thanks,
Ravi