Author: pierre
Date: Thu May 21 00:40:38 2020
New Revision: 11852
Log:
Fix kernel crash when using STACK_PROTECTOR_STRONG=y
Modified:
trunk/BOOK/chapter01/changelog.xml
trunk/BOOK/chapter08/kernel.xml
trunk/BOOK/general.ent
Modified: trunk/BOOK/chapter01/changelog.xml
==============================================================================
--- trunk/BOOK/chapter01/changelog.xml Sun May 17 07:18:04 2020 (r11851)
+++ trunk/BOOK/chapter01/changelog.xml Thu May 21 00:40:38 2020 (r11852)
@@ -43,6 +43,16 @@
appropriate for the entry or if needed the entire day's listitem.
-->
<listitem>
+ <para>2020-05-21</para>
+ <itemizedlist>
+ <listitem>
+ <para>[pierre] - Fix a crash at early boot when using
+ CONFIG_STACK_PROTECTOR_STRONG=y in kernel configuration.</para>
+ </listitem>
+ </itemizedlist>
+ </listitem>
+
+ <listitem>
<para>2020-05-16</para>
<itemizedlist>
<listitem>
Modified: trunk/BOOK/chapter08/kernel.xml
==============================================================================
--- trunk/BOOK/chapter08/kernel.xml Sun May 17 07:18:04 2020 (r11851)
+++ trunk/BOOK/chapter08/kernel.xml Thu May 21 00:40:38 2020 (r11852)
@@ -54,6 +54,16 @@
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 -->
<para>Configure the kernel via a menu-driven interface. For general
Modified: trunk/BOOK/general.ent
==============================================================================
--- trunk/BOOK/general.ent Sun May 17 07:18:04 2020 (r11851)
+++ trunk/BOOK/general.ent Thu May 21 00:40:38 2020 (r11852)
@@ -1,13 +1,13 @@
-<!ENTITY version "SVN-20200516">
+<!ENTITY version "SVN-20200521">
<!ENTITY short-version "svn"> <!-- Used below in &blfs-book;
Change to x.y for release but not -rc
releases -->
<!ENTITY generic-version "development"> <!-- Use "development" or
"x.y[-pre{x}]" -->
-<!ENTITY versiond "20200516-systemd">
+<!ENTITY versiond "20200521-systemd">
<!ENTITY short-versiond "systemd">
<!ENTITY generic-versiond "systemd">
-<!ENTITY releasedate "May 16th, 2020">
+<!ENTITY releasedate "May 21st, 2020">
<!ENTITY copyrightdate "1999-2020"><!-- jhalfs needs a literal dash, not
– -->
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