On the kernel with CONFIG_RT_GROUP_SCHED=n, the "RT PRIO_ARRAY" table of runq command always empty, nevertheless exists "rt_sched_class" task. This cause to substract offset "task_struct->rt - task_struct" only if there is my_q member (ie. CONFIG_RT_GROUP_SCHED=y). Therefore dump_RT_prio_array() passes the address of "rt member of task_struct" to task_to_context(). This patch ensure to pass the address of "task_struct" to task_to_context(). --- task.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/task.c b/task.c index 147ff5c..50c82c8 100644 --- a/task.c +++ b/task.c @@ -8688,9 +8688,9 @@ dump_RT_prio_array(ulong k_prio_array, char *u_prio_array) &rt_rq_buf[OFFSET(rt_rq_active)]); FREEBUF(rt_rq_buf); continue; - } else - task_addr -= OFFSET(task_struct_rt); + } } + task_addr -= OFFSET(task_struct_rt); if (!(tc = task_to_context(task_addr))) continue; -- 1.9.1