Changeset 66a21f1 for chapter08

Timestamp:

03/31/2021 10:41:38 AM (3 years ago)

Author:

Xℹ Ruoyao <xry111@…>

Branches:

ml-11.0, multilib

Children:

d3da8c9b

Parents:

95906db

git-author:

Thomas Trepl <thomas@…> (05/22/2020 04:16:30 AM)

git-committer:

Xℹ Ruoyao <xry111@…> (03/31/2021 10:41:38 AM)

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 -->