[PATCH v2 2/3] ARM: compressed: Bump MALLOC_SIZE to 128 KiB

Andreas Kemnade andreas at kemnade.info
Fri Aug 28 13:32:20 PDT 2026


From: Jonathan Neuschäfer <j.neuschaefer at gmx.net>

The ZSTD compressor needs about 100 KiB.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer at gmx.net>
Reviewed-by: Florian Fainelli <f.fainelli at gmail.com>
Reviewed-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Andreas Kemnade <andreas at kemnade.info>
---
 arch/arm/boot/compressed/Makefile | 2 +-
 arch/arm/boot/compressed/head.S   | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index e3f550d628578..fa6ee23cd72eb 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -62,7 +62,7 @@ ZTEXTADDR	:= 0
 ZBSSADDR	:= ALIGN(8)
 endif
 
-MALLOC_SIZE	:= 65536
+MALLOC_SIZE	:= 131072
 
 AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) -DMALLOC_SIZE=$(MALLOC_SIZE)
 CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 9f406e9c0ea6f..23fbbe94da6e8 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -337,7 +337,7 @@ restart:	adr	r0, LC1
 		get_inflated_image_size	r9, r10, lr
 
 #ifndef CONFIG_ZBOOT_ROM
-		/* malloc space is above the relocated stack (64k max) */
+		/* malloc space is above the relocated stack (128k max) */
 		add	r10, sp, #MALLOC_SIZE
 #else
 		/*
@@ -629,7 +629,7 @@ not_relocated:	mov	r0, #0
  */
 		mov	r0, r4
 		mov	r1, sp			@ malloc space above stack
-		add	r2, sp, #MALLOC_SIZE	@ 64k max
+		add	r2, sp, #MALLOC_SIZE	@ 128k max
 		mov	r3, r7
 		bl	decompress_kernel
 

-- 
2.47.3




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