This is a note to let you know that I've just added the patch titled
selftests/mm: sigbus-wp test requires UFFD_FEATURE_WP_HUGETLBFS_SHMEM
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
selftests-mm-sigbus-wp-test-requires-uffd_feature_wp_hugetlbfs_shmem.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 105840ebd76d8dbc1a7d734748ae320076f3201e Mon Sep 17 00:00:00 2001
From: Edward Liaw <edliaw@xxxxxxxxxx>
Date: Thu, 21 Mar 2024 23:20:21 +0000
Subject: selftests/mm: sigbus-wp test requires UFFD_FEATURE_WP_HUGETLBFS_SHMEM
From: Edward Liaw <edliaw@xxxxxxxxxx>
commit 105840ebd76d8dbc1a7d734748ae320076f3201e upstream.
The sigbus-wp test requires the UFFD_FEATURE_WP_HUGETLBFS_SHMEM flag for
shmem and hugetlb targets. Otherwise it is not backwards compatible with
kernels <5.19 and fails with EINVAL.
Link: https://lkml.kernel.org/r/20240321232023.2064975-1-edliaw@xxxxxxxxxx
Fixes: 73c1ea939b65 ("selftests/mm: move uffd sig/events tests into uffd unit tests")
Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/uffd-unit-tests.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/mm/uffd-unit-tests.c
+++ b/tools/testing/selftests/mm/uffd-unit-tests.c
@@ -1427,7 +1427,8 @@ uffd_test_case_t uffd_tests[] = {
.uffd_fn = uffd_sigbus_wp_test,
.mem_targets = MEM_ALL,
.uffd_feature_required = UFFD_FEATURE_SIGBUS |
- UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_PAGEFAULT_FLAG_WP,
+ UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+ UFFD_FEATURE_WP_HUGETLBFS_SHMEM,
},
{
.name = "events",
Patches currently in stable-queue which might be from edliaw@xxxxxxxxxx are
queue-6.8/selftests-mm-fix-arm-related-issue-with-fork-after-pthread_create.patch
queue-6.8/selftests-mm-sigbus-wp-test-requires-uffd_feature_wp_hugetlbfs_shmem.patch
