glib-2.0: skip a timing sensitive monotonic-time ptest

The /monotonic-time-ns/similar test compares g_get_monotonic_time() and
g_get_monotonic_time_ns() by spinning until the microsecond clock ticks
and asserting the two clocks haven't diverged. This is inherently racy
under QEMU emulation on loaded hosts, as the process can be preempted
between the clock reads.

[YOCTO #16230] : https://bugzilla.yoctoproject.org/show_bug.cgi?id=16230

Signed-off-by: Pratik Farkase <pratik.farkase@est.tech>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-core/glib-2.0/files/skip-monotonic-time-similar.patch b/meta/recipes-core/glib-2.0/files/skip-monotonic-time-similar.patch
new file mode 100644 (file)
index 0000000..75eda15
--- /dev/null
+++ b/meta/recipes-core/glib-2.0/files/skip-monotonic-time-similar.patch
@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Pratik Farkase <pratik.farkase@est.tech>
+Date: Tue, 5 Aug 2026 08:00:00 +0000
+Subject: [PATCH] Skip /monotonic-time-ns/similar test
+
+The test_similar test compares g_get_monotonic_time() and
+g_get_monotonic_time_ns() by spinning until the microsecond clock ticks
+and then asserting the two clocks haven't diverged beyond a factor of
+50. This is inherently racy under QEMU emulation on loaded hosts: the
+process can be preempted between the two clock reads, causing the
+assertion "50 * ns_elapsed > 1000 * us_elapsed" to fail.
+
+https://bugzilla.yoctoproject.org/show_bug.cgi?id=16230
+
+Upstream-Status: Inappropriate [OE-specific]
+Signed-off-by: Pratik Farkase <pratik.farkase@est.tech>
+---
+ glib/tests/monotonic-time.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/glib/tests/monotonic-time.c b/glib/tests/monotonic-time.c
+index 1234567..abcdef0 100644
+--- a/glib/tests/monotonic-time.c
++++ b/glib/tests/monotonic-time.c
+@@ -153,7 +153,6 @@ main (int argc, char *argv[])
+   g_test_add_func ("/monotonic-time-ns/increasing", test_increasing_ns);
+   g_test_add_func ("/monotonic-time/usleep", test_usleep);
+   g_test_add_func ("/monotonic-time-ns/usleep", test_usleep_ns);
+-  g_test_add_func ("/monotonic-time-ns/similar", test_similar);
+ 
+   return g_test_run ();
+ }

diff --git a/meta/recipes-core/glib-2.0/glib.inc b/meta/recipes-core/glib-2.0/glib.inc
index f554145bb02be753c43eb09adb734980077d058d..903d56e05fbfd19200c1722c778c2a3f5c64b1aa 100644 (file)
--- a/meta/recipes-core/glib-2.0/glib.inc
+++ b/meta/recipes-core/glib-2.0/glib.inc
@@ -235,6 +235,7 @@ SRC_URI += "\
            file://0001-gio-tests-resources.c-comment-out-a-build-host-only-.patch \
            file://0010-Do-not-hardcode-python-path-into-various-tools.patch \
            file://skip-timeout.patch \
+           file://skip-monotonic-time-similar.patch \
            file://CVE-2026-58016-1.patch \
            file://CVE-2026-58016-2.patch \
            file://0001-gio-tests-services-Fix-installed-service-file-using-.patch \