From: Bruce Ashfield <[email protected]>
Integrating the following commit(s) to linux-yocto/7.2:
1/1 [
Author: Krystian Kaniewski
Email: [email protected]
Subject: drm/client: Avoid warning on vblank timeout during modeset client
waits
Date: Wed, 12 Aug 2026 10:05:19 +0000
[ Backport of a fix posted on LKML; not yet merged upstream. ]
Commit d8c4bddcd8bc ("drm/fb-helper: Synchronize dirty worker with
vblank") added a vblank wait to the fb-helper damage worker via
drm_client_modeset_wait_for_vblank(). On virtualized/emulated displays
(the Yocto QEMU autobuilder) and on PREEMPT_RT, the vblank can fail to
arrive within the 1s timeout even though this is harmless optional
throttling, producing a spurious warning:
WARNING: drivers/gpu/drm/drm_vblank.c:1329 drm_crtc_wait_one_vblank
vblank wait timed out on crtc 0
drm_crtc_wait_one_vblank
drm_client_modeset_wait_for_vblank
drm_fb_helper_damage_work
The traceback is picked up by Yocto's parselogs and fails runtime tests.
Add a non-warning drm_crtc_wait_one_vblank_internal() and use it from the
client modeset wait path, where a timeout is expected and does not
indicate a kernel bug. The warning is preserved for all other callers of
drm_crtc_wait_one_vblank(), whose external behaviour is unchanged.
Link:
https://lore.kernel.org/all/[email protected]
Fixes: d8c4bddcd8bc ("drm/fb-helper: Synchronize dirty worker with vblank")
Signed-off-by: Krystian Kaniewski <[email protected]>
Signed-off-by: Bruce Ashfield <[email protected]>
]
Signed-off-by: Bruce Ashfield <[email protected]>
---
.../recipes-kernel/linux/linux-yocto-rt_7.2.bb | 2 +-
.../linux/linux-yocto-tiny_7.2.bb | 2 +-
meta/recipes-kernel/linux/linux-yocto_7.2.bb | 18 +++++++++---------
3 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_7.2.bb
b/meta/recipes-kernel/linux/linux-yocto-rt_7.2.bb
index da34435770..438c896749 100644
--- a/meta/recipes-kernel/linux/linux-yocto-rt_7.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto-rt_7.2.bb
@@ -15,7 +15,7 @@ python () {
raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to
linux-yocto-rt to enable it")
}
-SRCREV_machine ?= "5391c0d4e57d3cacdd66e7d5a016dba8c6f5956e"
+SRCREV_machine ?= "c2f967f4c1065d41084f300d3eca7cd413635dc3"
SRCREV_meta ?= "b5d69636e3e56aa6a5b8f987b4587e7a56c4782a"
SRC_URI =
"git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine;protocol=https
\
diff --git a/meta/recipes-kernel/linux/linux-yocto-tiny_7.2.bb
b/meta/recipes-kernel/linux/linux-yocto-tiny_7.2.bb
index 3a8f086d5c..0a9595a749 100644
--- a/meta/recipes-kernel/linux/linux-yocto-tiny_7.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto-tiny_7.2.bb
@@ -18,7 +18,7 @@ DEPENDS += "openssl-native util-linux-native"
KMETA = "kernel-meta"
KCONF_BSP_AUDIT_LEVEL = "2"
-SRCREV_machine ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
+SRCREV_machine ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
SRCREV_meta ?= "b5d69636e3e56aa6a5b8f987b4587e7a56c4782a"
PV = "${LINUX_VERSION}+git"
diff --git a/meta/recipes-kernel/linux/linux-yocto_7.2.bb
b/meta/recipes-kernel/linux/linux-yocto_7.2.bb
index 550ba49ebc..f1c2d475c1 100644
--- a/meta/recipes-kernel/linux/linux-yocto_7.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto_7.2.bb
@@ -17,17 +17,17 @@ KBRANCH:qemux86-64 ?= "v7.2/standard/base"
KBRANCH:qemuloongarch64 ?= "v7.2/standard/base"
KBRANCH:qemumips64 ?= "v7.2/standard/mti-malta"
-SRCREV_machine:qemuarm ?= "0e60d19f0d15f5fbef845da9454998c76b37bd97"
-SRCREV_machine:qemuarm64 ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
-SRCREV_machine:qemuloongarch64 ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
+SRCREV_machine:qemuarm ?= "56c7106647e505ca1fb15fd433b0bc991024764c"
+SRCREV_machine:qemuarm64 ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
+SRCREV_machine:qemuloongarch64 ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
SRCREV_machine:qemumips ?= "ab0e33fefa2a3d0366b2b8deb7cfb3be2d8dc436"
-SRCREV_machine:qemuppc ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
-SRCREV_machine:qemuriscv64 ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
-SRCREV_machine:qemuriscv32 ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
-SRCREV_machine:qemux86 ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
-SRCREV_machine:qemux86-64 ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
+SRCREV_machine:qemuppc ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
+SRCREV_machine:qemuriscv64 ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
+SRCREV_machine:qemuriscv32 ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
+SRCREV_machine:qemux86 ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
+SRCREV_machine:qemux86-64 ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
SRCREV_machine:qemumips64 ?= "ab0e33fefa2a3d0366b2b8deb7cfb3be2d8dc436"
-SRCREV_machine ?= "c591fbeae3281cba1d1e16470afd6541ab445b46"
+SRCREV_machine ?= "d8a1ec518ab72fadb60dbe9eed3775b68975defd"
SRCREV_meta ?= "b5d69636e3e56aa6a5b8f987b4587e7a56c4782a"
# set your preferred provider of linux-yocto to 'linux-yocto-upstream', and
you'll
--
2.43.0
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