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 – --> -- http://lists.linuxfromscratch.org/listinfo/lfs-book FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page