1 files changed, 47 insertions, 0 deletions

diff --git a/meta-oe/recipes-bsp/fwupd/fwupd/0001-fu-lzma-common.c-reduce-lzma-compression-level-from-.patch b/meta-oe/recipes-bsp/fwupd/fwupd/0001-fu-lzma-common.c-reduce-lzma-compression-level-from-.patch
new file mode 100644
index 0000000000..b0d3863eaa
--- /dev/null
+++ b/meta-oe/recipes-bsp/fwupd/fwupd/0001-fu-lzma-common.c-reduce-lzma-compression-level-from-.patch
@@ -0,0 +1,47 @@
+From c96668ab830d016eeff977d5ca4f99d288cf38c0 Mon Sep 17 00:00:00 2001
+From: Mikko Rapeli <mikko.rapeli@linaro.org>
+Date: Tue, 8 Jul 2025 07:05:02 +0000
+Subject: [PATCH] fu-lzma-common.c: reduce lzma compression level from 9 to
+ default 6
+
+xz manual page says default is 6 and levels higher than that can cause
+huge CPU and memory usage. On yocto qemu target, the fwupd tests
+fail to run with compression level 9:
+
+FuSelfTest:ERROR:../sources/fwupd-2.0.12/libfwupdplugin/fu-self-test.c:6342:fu_lzma_func: assertion failed (error == NULL): failed to set up LZMA encoder rc=5 (FwupdError, 10)
+not ok /fwupd/lzma - FuSelfTest:ERROR:../sources/fwupd-2.0.12/libfwupdplugin/fu-self-test.c:6342:fu_lzma_func: assertion failed (error == NULL): failed to set up LZMA encoder rc=5 (FwupdError, 10)
+
+With default compression level 6 the tests pass.
+
+https://linux.die.net/man/1/xz
+
+ -6 ... -9
+    Excellent compression with medium to high memory usage.
+    These are also slower than the lower preset levels.
+    The default is -6. Unless you want to maximize the compression ratio,
+    you probably don't want a higher preset level than -7 due to
+    speed and memory usage.
+
+Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org>
+---
+ libfwupdplugin/fu-lzma-common.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Upstream-Status: Submitted [https://github.com/fwupd/fwupd/pull/9019]
+
+diff --git a/libfwupdplugin/fu-lzma-common.c b/libfwupdplugin/fu-lzma-common.c
+index a64ec773da91..d381ed52e135 100644
+--- a/libfwupdplugin/fu-lzma-common.c
++++ b/libfwupdplugin/fu-lzma-common.c
+@@ -89,7 +89,7 @@ fu_lzma_compress_bytes(GBytes *blob, GError **error)
+        strm.next_in = g_bytes_get_data(blob, NULL);
+        strm.avail_in = g_bytes_get_size(blob);
+ 
+-       rc = lzma_easy_encoder(&strm, 9, LZMA_CHECK_CRC64);
++       rc = lzma_easy_encoder(&strm, 6, LZMA_CHECK_CRC64);
+        if (rc != LZMA_OK) {
+                lzma_end(&strm);
+                g_set_error(error,
+-- 
+2.43.0
+