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Fix kernel crash when using STACK_PROTECTOR_STRONG=y

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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11852 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
This commit is contained in:
Pierre Labastie 2020-05-21 07:40:38 +00:00
parent aabe1face4
commit 1405c4a2c6
3 changed files with 23 additions and 3 deletions
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10
chapter01/changelog.xml
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@ -42,6 +42,16 @@
<listitem revision="sysv"> or <listitem revision="systemd"> as <listitem revision="sysv"> or <listitem revision="systemd"> as
appropriate for the entry or if needed the entire day's listitem. 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> <listitem>
<para>2020-05-16</para> <para>2020-05-16</para>
<itemizedlist> <itemizedlist>

10
chapter08/kernel.xml
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@ -54,6 +54,16 @@
kernel compilation. Do not rely on the source tree being clean after kernel compilation. Do not rely on the source tree being clean after
un-tarring.</para> 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 --> <!-- Support for compiling a keymap into the kernel is deliberately removed -->
<para>Configure the kernel via a menu-driven interface. For general <para>Configure the kernel via a menu-driven interface. For general

6
general.ent
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@ -1,13 +1,13 @@
<!ENTITY version "SVN-20200516"> <!ENTITY version "SVN-20200521">
<!ENTITY short-version "svn"> <!-- Used below in &blfs-book; <!ENTITY short-version "svn"> <!-- Used below in &blfs-book;
Change to x.y for release but not -rc releases --> Change to x.y for release but not -rc releases -->
<!ENTITY generic-version "development"> <!-- Use "development" or "x.y[-pre{x}]" --> <!ENTITY generic-version "development"> <!-- Use "development" or "x.y[-pre{x}]" -->
<!ENTITY versiond "20200516-systemd"> <!ENTITY versiond "20200521-systemd">
<!ENTITY short-versiond "systemd"> <!ENTITY short-versiond "systemd">
<!ENTITY generic-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 &ndash; --> <!ENTITY copyrightdate "1999-2020"><!-- jhalfs needs a literal dash, not &ndash; -->