The patch titled
Subject: mm/damon/tests/vaddr-kunit.h: reduce stack consumption
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-tests-vaddr-kunith-reduce-stack-consumption.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-tests-vaddr-kunith-reduce-stack-consumption.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm/damon/tests/vaddr-kunit.h: reduce stack consumption
Date: Mon Dec 9 06:20:01 PM PST 2024
After "mm: move per-vma lock into vm_area_struct" we're hitting
mm/damon/tests/vaddr-kunit.h: In function 'damon_test_three_regions_in_vmas':
mm/damon/tests/vaddr-kunit.h:92:1: error: the frame size of 3280 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
Fix by moving all those vmas off the stack.
Closes: https://lkml.kernel.org/r/20241209170829.11311e70@xxxxxxxxxxxxxxxx
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: SeongJae Park <sj@xxxxxxxxxx>
Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/tests/vaddr-kunit.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/damon/tests/vaddr-kunit.h~mm-damon-tests-vaddr-kunith-reduce-stack-consumption
+++ a/mm/damon/tests/vaddr-kunit.h
@@ -68,7 +68,7 @@ static void damon_test_three_regions_in_
static struct mm_struct mm;
struct damon_addr_range regions[3] = {0};
/* 10-20-25, 200-210-220, 300-305, 307-330 */
- struct vm_area_struct vmas[] = {
+ static const struct vm_area_struct vmas[] = {
(struct vm_area_struct) {.vm_start = 10, .vm_end = 20},
(struct vm_area_struct) {.vm_start = 20, .vm_end = 25},
(struct vm_area_struct) {.vm_start = 200, .vm_end = 210},
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm-vmscan-account-for-free-pages-to-prevent-infinite-loop-in-throttle_direct_reclaim-checkpatch-fixes.patch
mm-swap_cgroup-allocate-swap_cgroup-map-using-vcalloc-fix.patch
mm-page_alloc-add-some-detailed-comments-in-can_steal_fallback-fix.patch
mm-introduce-mmap_lock_speculate_try_beginretry-fix.patch
mm-damon-tests-vaddr-kunith-reduce-stack-consumption.patch
