The patch titled Subject: scripts/gdb/tasks: fix lx-ps command error has been added to the -mm mm-hotfixes-unstable branch. Its filename is scripts-gdb-tasks-fix-lx-ps-command-error.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com Subject: scripts/gdb/tasks: fix lx-ps command error Date: Mon, 27 Nov 2023 15:04:01 +0800

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.

Link: https://lkml.kernel.org/r/20231127070404.4192-2-Kuan-Ying.Lee@mediatek.com Fixes: 8e1f385104ac ("kill task_struct->thread_group") Signed-off-by: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com Cc: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Cc: Chinwen Chang chinwen.chang@mediatek.com Cc: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com Cc: Matthias Brugger matthias.bgg@gmail.com Cc: Qun-Wei Lin qun-wei.lin@mediatek.com Cc: Oleg Nesterov oleg@redhat.com Cc: stable@vger.kernel.org Cc: Andrey Konovalov andreyknvl@google.com Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

scripts/gdb/linux/tasks.py | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)

--- a/scripts/gdb/linux/tasks.py~scripts-gdb-tasks-fix-lx-ps-command-error +++ a/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") @@ -25,13 +25,9 @@ def task_lists(): t = g = init_task

while True: - while True: - yield t - - t = utils.container_of(t['thread_group']['next'], - task_ptr_type, "thread_group") - if t == g: - break + thread_head = t['signal']['thread_head'] + for thread in lists.list_for_each_entry(thread_head, task_ptr_type, 'thread_node'): + yield thread

t = g = utils.container_of(g['tasks']['next'], task_ptr_type, "tasks") _

Patches currently in -mm which might be from Kuan-Ying.Lee@mediatek.com are

scripts-gdb-tasks-fix-lx-ps-command-error.patch scripts-gdb-stackdepot-rename-pool_index_cached-to-pools_num.patch scripts-gdb-remove-exception-handling-and-refine-print-format.patch