Changeset ff6baab for chapter08/kernel.xml

Timestamp:

05/22/2020 04:16:30 AM (4 years ago)

Author:

Thomas Trepl <thomas@…>

Branches:

multilib-10.1

Children:

e65cc63

Parents:

f573e24

Message:

MultiLib: Merge changes from trunk

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/branches/multilib@11855 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

File:

• chapter08/kernel.xml (modified) (1 diff)

chapter08/kernel.xml

@@ -54 +54 @@
     kernel compilation. Do not rely on the source tree being clean after
     un-tarring.</para>
+
+    <!-- The following paragraph and sed should be only necessary on the 5.6
+         series, but check when 5.7 is out. -->
+    <para>When using <envar>CONFIG_STACKPROTECTOR_STRONG=y</envar>, and
+    compiling with GCC 10 and later, the default optimization is too
+    aggressive, and generates a kernel panic when booting. This can be
+    fixed with:</para>
+
+<screen><userinput remap="pre">sed -e '/cpu_startup/a asm("");' \
+    -i arch/x86/{kernel/smpboot.c,xen/smp_pv.c}</userinput></screen>
 
     <!-- Support for compiling a keymap into the kernel is deliberately removed -->