Since commit 8e1f385104ac ("kill task_struct->thread_group") remove
the thread_group, we will encounter below issue.
(gdb) lx-ps
TASK PID COMM
0xffff800086503340 0 swapper/0
Python Exception <class 'gdb.error'>: There is no member named thread_group.
Error occurred in Python: There is no member named thread_group.
We use signal->thread_head to iterate all threads instead.
Fixes: 8e1f385104ac ("kill task_struct->thread_group")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@xxxxxxxxxxxx>
---
scripts/gdb/linux/tasks.py | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/scripts/gdb/linux/tasks.py b/scripts/gdb/linux/tasks.py
index 17ec19e9b5bf..aa5ab6251f76 100644
--- a/scripts/gdb/linux/tasks.py
+++ b/scripts/gdb/linux/tasks.py
@@ -13,7 +13,7 @@
import gdb
-from linux import utils
+from linux import utils, lists
task_type = utils.CachedType("struct task_struct")
@@ -22,19 +22,15 @@ task_type = utils.CachedType("struct task_struct")
def task_lists():
task_ptr_type = task_type.get_type().pointer()
init_task = gdb.parse_and_eval("init_task").address
- t = g = init_task
+ t = init_task
while True:
- while True:
- yield t
+ thread_head = t['signal']['thread_head']
+ for thread in lists.list_for_each_entry(thread_head, task_ptr_type, 'thread_node'):
+ yield thread
- t = utils.container_of(t['thread_group']['next'],
- task_ptr_type, "thread_group")
- if t == g:
- break
-
- t = g = utils.container_of(g['tasks']['next'],
- task_ptr_type, "tasks")
+ t = utils.container_of(t['tasks']['next'],
+ task_ptr_type, "tasks")
if t == init_task:
return
--
2.18.0
