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
--
Crash-utility mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/crash-utility
