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FAILED: patch "[PATCH] Kconfig.debug: provide a little extra FRAME_WARN leeway when" failed to apply to 4.19-stable tree

PATCH [email protected] 1 participant 1 message Dec 3, 2022

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The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

Possible dependencies:

152fe65f300e ("Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled") 8d192bec534b ("parisc: Increase FRAME_WARN to 2048 bytes on parisc") 867050247e29 ("xtensa: increase size of gcc stack frame check")
55b70eed81cb ("parisc: Increase size of gcc stack frame check")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 152fe65f300e1819d59b80477d3e0999b4d5d7d2 Mon Sep 17 00:00:00 2001
From: Lee Jones <[email protected]>
Date: Fri, 25 Nov 2022 12:07:50 +0000
Subject: [PATCH] Kconfig.debug: provide a little extra FRAME_WARN leeway when
KASAN is enabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When enabled, KASAN enlarges function's stack-frames. Pushing quite a few over the current threshold. This can mainly be seen on 32-bit architectures where the present limit (when !GCC) is a lowly 1024-Bytes.

Cc Alex Deucher <[email protected]>
Cc "Christian König" <[email protected]>
Cc Daniel Vetter <[email protected]>
Cc David Airlie <[email protected]>
Cc Harry Wentland <[email protected]>
Cc Leo Li <[email protected]>
Cc Maarten Lankhorst <[email protected]>
Cc Maxime Ripard <[email protected]>
Cc Nathan Chancellor <[email protected]>
Cc Nick Desaulniers <[email protected]>
Cc "Pan, Xinhui" <[email protected]>
Cc Rodrigo Siqueira <[email protected]>
Cc Thomas Zimmermann <[email protected]>
Cc Tom Rix <[email protected]>
lib/Kconfig.debug +1 -0
index a1005415f0f4..580e453e284e 100644
@@ -399,6 +399,7 @@ config FRAME_WARN
 	default 2048 if GCC_PLUGIN_LATENT_ENTROPY
 	default 2048 if PARISC
 	default 1536 if (!64BIT && XTENSA)
+	default 1280 if KASAN && !64BIT
 	default 1024 if !64BIT
 	default 2048 if 64BIT
 	help