Hi, I was adding a field to the 3 trace_mark() calls in kernel/sched.c. The calls are at: i) context_switch(prev, next, ... ) ii) try_to_wake_up(p, ...) iii) wake_up_new_task(p, ...) functions The field is 'task'->mm->pfrate. (I have added the pfrate field in mm_struct), where 'task' is a placeholder for prev/next/p/rq->curr in those trace_mark() calls. I found that always either the next/p pointers are NULL or task->mm is NULL at that particular point. Is it supposed to be so ? Why ? PS: The trace_mark() in kernel/sched.c calls are for adding entries to the trace-file of sched_switch tracer. -- Regards, Sukanto Ghosh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
