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[Emacs-diffs] Changes to emacs/etc/PROBLEMS


From: Richard M . Stallman
Subject: [Emacs-diffs] Changes to emacs/etc/PROBLEMS
Date: Tue, 28 Jun 2005 14:52:26 -0400

Index: emacs/etc/PROBLEMS
diff -c emacs/etc/PROBLEMS:1.176 emacs/etc/PROBLEMS:1.177
*** emacs/etc/PROBLEMS:1.176    Sat Jun 25 04:48:24 2005
--- emacs/etc/PROBLEMS  Tue Jun 28 18:52:26 2005
***************
*** 2377,2383 ****
  
  With certain recent Linux kernels (like the one of Redhat Fedora Core
  1 and 2), the new "Exec-shield" functionality is enabled by default, which
! creates a different memory layout that breaks the emacs dumper.
  
  Configure can overcome the problem of exec-shield if the architecture is
  x86 and the program setarch is present.  On other architectures no
--- 2377,2385 ----
  
  With certain recent Linux kernels (like the one of Redhat Fedora Core
  1 and 2), the new "Exec-shield" functionality is enabled by default, which
! creates a different memory layout that breaks the emacs dumper. 
! The work-around explained here is not enough on Fedora Core 4. Read the
! next item.
  
  Configure can overcome the problem of exec-shield if the architecture is
  x86 and the program setarch is present.  On other architectures no
***************
*** 2404,2409 ****
--- 2406,2425 ----
  
      setarch i386 ./temacs --batch --load loadup [dump|bootstrap]
  
+ *** Fedora Core 4 GNU/Linux: Segfault during dumping.
+ 
+ In addition to exec-shield explained above "Linux: Segfault during
+ `make bootstrap' under certain recent versions of the Linux kernel"
+ item, Linux kernel shipped with Fedora Core 4 randomizes the virtual
+ address space of a process. As the result dumping is failed even if
+ you turn off the exec-shield. In such case use -R option of setarch
+ command:
+ 
+    setarch -R i386 ./temacs --batch --load loadup [dump|bootstrap]
+ 
+ or
+ 
+    setarch -R i386 make bootstrap     
  
  *** Fatal signal in the command  temacs -l loadup inc dump.
  




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