Commit 984002eb authored by Eli Zaretskii's avatar Eli Zaretskii
Browse files

From David Ponce: document segfaults with the Linux kernels that

enable the Exec-shield functionality.
parent d04103a1
2003-11-03 David Ponce <david.ponce@wanadoo.fr>
* PROBLEMS: Document segfaults with Linux kernels that enable the
Exec-shield functionality.
2003-10-30 Kenichi Handa <handa@m17n.org> 2003-10-30 Kenichi Handa <handa@m17n.org>
* HELLO: Fix cases of language names. Make German lines one. * HELLO: Fix cases of language names. Make German lines one.
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This file describes various problems that have been encountered This file describes various problems that have been encountered
in compiling, installing and running GNU Emacs. 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. * Characters are displayed as empty boxes or with wrong font under X.
This can occur when two different versions of FontConfig are used. This can occur when two different versions of FontConfig are used.
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