The patch titled
Subject: kasan: print workqueue stack
has been removed from the -mm tree. Its filename was
kasan-print-workqueue-stack.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
Subject: kasan: print workqueue stack
The aux_stack[2] is reused to record the call_rcu() call stack and
enqueuing work call stacks. So that we need to change the auxiliary stack
title for common title, print them in KASAN report.
Link: https://lkml.kernel.org/r/20201203022715.30635-1-walter-zh.wu@xxxxxxxxxxxx
Signed-off-by: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
Suggested-by: Marco Elver <elver@xxxxxxxxxx>
Acked-by: Marco Elver <elver@xxxxxxxxxx>
Reviewed-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Reviewed-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/generic.c | 3 ---
mm/kasan/report.c | 4 ++--
2 files changed, 2 insertions(+), 5 deletions(-)
--- a/mm/kasan/generic.c~kasan-print-workqueue-stack
+++ a/mm/kasan/generic.c
@@ -339,9 +339,6 @@ void kasan_record_aux_stack(void *addr)
object = nearest_obj(cache, page, addr);
alloc_info = get_alloc_info(cache, object);
- /*
- * record the last two call_rcu() call stacks.
- */
alloc_info->aux_stack[1] = alloc_info->aux_stack[0];
alloc_info->aux_stack[0] = kasan_save_stack(GFP_NOWAIT);
}
--- a/mm/kasan/report.c~kasan-print-workqueue-stack
+++ a/mm/kasan/report.c
@@ -185,12 +185,12 @@ static void describe_object(struct kmem_
#ifdef CONFIG_KASAN_GENERIC
if (alloc_info->aux_stack[0]) {
- pr_err("Last call_rcu():\n");
+ pr_err("Last potentially related work creation:\n");
print_stack(alloc_info->aux_stack[0]);
pr_err("\n");
}
if (alloc_info->aux_stack[1]) {
- pr_err("Second to last call_rcu():\n");
+ pr_err("Second to last potentially related work creation:\n");
print_stack(alloc_info->aux_stack[1]);
pr_err("\n");
}
_
Patches currently in -mm which might be from walter-zh.wu@xxxxxxxxxxxx are
