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[Emacs-diffs] Changes to emacs/etc/PROBLEMS
From: |
Eli Zaretskii |
Subject: |
[Emacs-diffs] Changes to emacs/etc/PROBLEMS |
Date: |
Mon, 03 Nov 2003 01:21:46 -0500 |
Index: emacs/etc/PROBLEMS
diff -c emacs/etc/PROBLEMS:1.159 emacs/etc/PROBLEMS:1.160
*** emacs/etc/PROBLEMS:1.159 Fri Oct 24 05:27:50 2003
--- emacs/etc/PROBLEMS Mon Nov 3 01:21:45 2003
***************
*** 1,6 ****
--- 1,32 ----
This file describes various problems that have been encountered
in compiling, installing and running GNU Emacs.
+ * Segfault on GNU/Linux using certain recent versions of the Linux kernel.
+
+ With certain recent Linux kernels (like the one of Redhat Fedora Core
+ 1), the new "Exec-shield" functionality is enabled by default, which
+ creates a different memory layout that breaks the emacs dumper.
+
+ You can check the Exec-shield state like this:
+
+ cat /proc/sys/kernel/exec-shield
+
+ It returns 1 or 2 when Exec-shield is enabled, 0 otherwise. Please
+ read your system documentation for more details on Exec-shield and
+ associated commands.
+
+ When Exec-shield is enabled, building Emacs will segfault during the
+ execution of this command:
+
+ temacs --batch --load loadup [dump|bootstrap]
+
+ To work around this problem, it is necessary to temporarily disable
+ Exec-shield while building Emacs, using the `setarch' command like
+ this:
+
+ setarch i386 ./configure <configure parameters>
+ setarch i386 make <make parameters>
+
* Characters are displayed as empty boxes or with wrong font under X.
This can occur when two different versions of FontConfig are used.
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