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authorAseem Athale <athaleaseem@gmail.com>2021-02-17 14:22:20 +0530
committerErich Eckner <git@eckner.net>2021-02-17 10:29:18 +0100
commit513d4e4bdbbca75e46bab9b751e0c64b014195e1 (patch)
treee59a7a626975604e63233dd83b4152c76dc8adbf
parenta5bdf0c2464192af4adfd4e908620b6c5ec43554 (diff)
core/linux-lts: do not use zstd in ultra mode, disable bpf preload
-rw-r--r--core/linux-lts/PKGBUILD7
-rw-r--r--core/linux-lts/config2
-rw-r--r--core/linux-lts/no-ultra-zstd.patch12
3 files changed, 19 insertions, 2 deletions
diff --git a/core/linux-lts/PKGBUILD b/core/linux-lts/PKGBUILD
index c43e3041..ffe999a4 100644
--- a/core/linux-lts/PKGBUILD
+++ b/core/linux-lts/PKGBUILD
@@ -3,7 +3,7 @@
# fail if upstream's .config changes
for ((i=0; i<${#sha256sums[@]}; i++)); do
if [ "${sha256sums[${i}]}" = '14d52a4f598bdbf752546c4bab4dd096173db1f958df7dde97d17bb347b7073f' ]; then
- sha256sums[${i}]='4135bd56391d641aef00e4b52111c944f6ab816b0bc99f90dd0cb421967d516c'
+ sha256sums[${i}]='e92944269abb4310bd44c98a1008c95e5894a223caa3a73336fca218b513b66d'
fi
done
@@ -14,3 +14,8 @@ eval "$(
\,arch/x86/Makefile,a install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile_32.cpu
'
)"
+
+# avoid using zstd compression in ultra mode (exhausts virtual memory)
+source+=('no-ultra-zstd.patch')
+sha256sums+=('3997ce6033fdf950a9960f1db720b38c47b1a2e06ab75fc6712c154f596e7c47')
+# upstream prepare() does already do the *.patch patching
diff --git a/core/linux-lts/config b/core/linux-lts/config
index 8ebcc8de..0a8ce209 100644
--- a/core/linux-lts/config
+++ b/core/linux-lts/config
@@ -241,7 +241,7 @@ CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_USERMODE_DRIVER=y
-CONFIG_BPF_PRELOAD=y
+# CONFIG_BPF_PRELOAD is not set
CONFIG_BPF_PRELOAD_UMD=m
CONFIG_USERFAULTFD=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
diff --git a/core/linux-lts/no-ultra-zstd.patch b/core/linux-lts/no-ultra-zstd.patch
new file mode 100644
index 00000000..e3b133d5
--- /dev/null
+++ b/core/linux-lts/no-ultra-zstd.patch
@@ -0,0 +1,12 @@
+diff -rauN a/scripts/Makefile.lib b/scripts/Makefile.lib
+--- a/scripts/Makefile.lib 2020-11-11 06:45:51.375133819 +0100
++++ b/scripts/Makefile.lib 2020-11-11 06:46:12.058448322 +0100
+@@ -445,7 +445,7 @@
+ cmd_zstd = { cat $(real-prereqs) | $(ZSTD) -19; $(size_append); } > $@
+
+ quiet_cmd_zstd22 = ZSTD22 $@
+- cmd_zstd22 = { cat $(real-prereqs) | $(ZSTD) -22 --ultra; $(size_append); } > $@
++ cmd_zstd22 = { cat $(real-prereqs) | $(ZSTD) -19; $(size_append); } > $@
+
+ # ASM offsets
+ # ---------------------------------------------------------------------------