GNU bug report logs - #12337
24.2.50; when compiled with optimisation and LLVM GCC temacs crashes

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Package: emacs;

Reported by: Peter Dyballa <Peter_Dyballa <at> Freenet.DE>

Date: Sun, 2 Sep 2012 20:00:02 UTC

Severity: normal

Tags: moreinfo

Found in version 24.2.50

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Peter Dyballa <Peter_Dyballa <at> Freenet.DE>
Subject: bug#12337: closed (Re: bug#12337)
Date: Wed, 07 Dec 2016 19:23:04 +0000

[Message part 1 (text/plain, inline)]
Your bug report

#12337: 24.2.50; when compiled with optimisation and LLVM GCC temacs crashes

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 12337 <at> debbugs.gnu.org.

-- 
12337: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12337
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]
From: Glenn Morris <rgm <at> gnu.org>
To: <12337-done <at> debbugs.gnu.org>
Subject: Re: bug#12337
Date: Wed, 07 Dec 2016 14:22:42 -0500

Nothing can be done with this information.


[Message part 3 (message/rfc822, inline)]
From: Peter Dyballa <Peter_Dyballa <at> Freenet.DE>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2.50; when compiled with optimisation and LLVM GCC temacs crashes
Date: Sun, 2 Sep 2012 21:55:46 +0200

Hello!

Configured as

In GNU Emacs 24.2.50.1 (i386-apple-darwin10.8.0, X toolkit, Xaw3d scroll bars)
 of 2012-09-02 on Sumac.local
Bzr revision: 109859 eggert <at> cs.ucla.edu-20120902142647-95e2tmqtr0s8q0vn
Windowing system distributor `The X.Org Foundation', version 11.0.11299905
Configured using:
 `configure '--build=x86_64-apple-darwin10.8.0'
 '--host=i386-apple-darwin10.8.0' '--target=i386-apple-darwin10.8.0'
 '--with-wide-int' '--without-pop' '--without-sound' '--without-gconf'
 '--without-gpm' '--without-dbus' '--without-selinux'
 '--with-x-toolkit=athena' '--disable-ns-self-contained' '--without-xpm'
 '--without-jpeg' '--without-tiff' '--without-gif' '--without-png'
 '--without-rsvg' '--x-libraries=/usr/X11/lib'
 '--x-includes=/usr/X11/include'
 '--enable-locallisppath=/Library/Application
 Support/Emacs/calendar24:/Library/Application Support/Emacs' 'CFLAGS=-g
 -H -pipe -fPIC -fno-common -O1 -m32 -fomit-frame-pointer -msse3
 -foptimize-register-move -ftree-vectorize' 'CPPFLAGS=-I/sw/include'
 'LDFLAGS=-L/sw/lib -m32 -Wl,-dead_strip_dylibs -Wl,-bind_at_load
 -Wl,-t' 'CC=llvm-gcc-4.2' 'CXX=llvm-g++-4.2'
 'PKG_CONFIG_PATH=/sw/lib/xft2/lib/pkgconfig:/sw/share/pkgconfig:/sw/lib/pkgconfig:/usr/X11/lib/pkgconfig:/usr/X11/share/pkgconfig:/usr/lib/pkgconfig'
 'build_alias=x86_64-apple-darwin10.8.0'
 'host_alias=i386-apple-darwin10.8.0'
 'target_alias=i386-apple-darwin10.8.0''

to get a 32-bit application in a 32-bit software environment on 64-bit hardware (Mac OS X 10.6.8 on intel Core i7/Sandy Bridge) it works with -O0 and -O1. More optimisation lets temacs crash:

	/bin/sh: line 1: 87445 Segmentation fault      (core dumped) `/bin/pwd`/temacs --batch --load loadup bootstrap
	make[2]: *** [bootstrap-emacs] Error 1
	make[1]: *** [src] Error 2
	make: *** [bootstrap] Error 2

When I run temacs with these arguments in gud-gdb I get:

	Starting program: .../emacs-24.2.50/src/temacs '--batch --load loadup bootstrap'
	Im Emacs
	Reading symbols for shared libraries .+++++++++++++++++++..... done
	Loading loadup.el (source)...
	
	Program received signal EXC_BAD_ACCESS, Could not access memory.
	Reason: KERN_INVALID_ADDRESS at address: 0xfffffeec
	0x0016998f in mark_maybe_pointer [inlined] () at .../emacs-24.2.50/src/alloc.c:4617
	(gdb) bt full
	#0  0x0016998f in mark_maybe_pointer [inlined] () at .../emacs-24.2.50/src/alloc.c:4617
		tem = (void *) #1  0x0016998f in mark_memory [inlined] () at .../emacs-24.2.50/src/alloc.c:4700
		tem = (void *) #2  0x0016998f in Fgarbage_collect () at alloc.c:4939
		tem = (void *) 
	Lisp Backtrace:
	No symbol "VALMASK" in current context.
	(gdb) xbacktrace
	No symbol "VALMASK" in current context.

In another window arc/alloc.c is displayed with a mark pointing onto line #4617 with

	mark_object (obj);

The compilation of alloc.c goes like this (recompiling after deleting src/alloc.o):

make[2]: Nothing to be done for `all'.
llvm-gcc-4.2 -std=gnu99 -c -I/sw/include -Demacs  -I. -I/Users/pete/Quellen/Emacs_CVS/emacs-24.2.50/src -I../lib -I/Users/pete/Quellen/Emacs_CVS/emacs-24.2.50/src/../lib   -I/usr/X11/include -I/sw/include -I/sw/include/freetype2 -I/usr/X11/include -I/usr/X11R6/include    -I/sw/include/ImageMagick -fopenmp -I/sw/include/libxml2 -I/sw/include   -I/sw/include/freetype2 -I/sw/include -I/sw/include   -I/sw/include/freetype2 -I/sw/include -I/sw/include   -MMD -MF deps/alloc.d -MP  -I/sw/include     -g -ggdb -H -pipe -fPIC -fno-common -O2 -m32 -fomit-frame-pointer -msse3 -foptimize-register-move -ftree-vectorize alloc.c
. ./config.h
.. ./conf_post.h
... ../lib/alloca.h
... /usr/include/string.h
.... /usr/include/_types.h
..... /usr/include/sys/_types.h
...... /usr/include/sys/cdefs.h
...... /usr/include/machine/_types.h
....... /usr/include/i386/_types.h
.... /usr/include/secure/_string.h
..... /usr/include/secure/_common.h
... ../lib/stdlib.h
.... /usr/include/stdlib.h
..... /usr/include/Availability.h
...... /usr/include/AvailabilityInternal.h
..... /usr/include/sys/wait.h
...... /usr/include/sys/signal.h
....... /usr/include/sys/appleapiopts.h
....... /usr/include/machine/signal.h
........ /usr/include/i386/signal.h
......... /usr/include/i386/_structs.h
....... /usr/include/sys/_structs.h
........ /usr/include/machine/_structs.h
......... /usr/include/i386/_structs.h
.......... /usr/include/mach/i386/_structs.h
...... /usr/include/sys/resource.h
....... /usr/include/sys/_structs.h
...... /usr/include/machine/endian.h
....... /usr/include/i386/endian.h
........ /usr/include/sys/_endian.h
......... /usr/include/libkern/_OSByteOrder.h
.......... /usr/include/libkern/i386/_OSByteOrder.h
..... /usr/include/machine/types.h
...... /usr/include/i386/types.h
....... /usr/include/i386/_types.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
. ../lib/stdio.h
.. /usr/include/stdio.h
... /usr/include/secure/_stdio.h
.. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stdarg.h
.. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
.. /usr/include/sys/types.h
... /usr/include/sys/_structs.h
. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
.. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
.. /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
... /usr/include/limits.h
.... /usr/include/machine/limits.h
..... /usr/include/i386/limits.h
...... /usr/include/i386/_limits.h
.... /usr/include/sys/syslimits.h
. /usr/include/setjmp.h
.. /usr/include/machine/setjmp.h
... /usr/include/i386/setjmp.h
. ../lib/signal.h
.. /usr/include/signal.h
.. /usr/include/pthread.h
... /usr/include/pthread_impl.h
... /usr/include/sched.h
... ../lib/time.h
.... /usr/include/time.h
..... /usr/include/_structs.h
...... /usr/include/sys/_structs.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
. lisp.h
.. ../lib/stdalign.h
... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
.. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stdbool.h
.. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
.. ../lib/inttypes.h
... /usr/include/inttypes.h
.... ../lib/stdint.h
..... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stdint.h
..... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
...... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
...... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
....... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
..... ../lib/inttypes.h
...... /usr/include/inttypes.h
... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
.... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
..... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
.. /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
.... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
.. ../lib/intprops.h
... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
.... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/limits.h
..... /Developer/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/syslimits.h
.. globals.h
. process.h
.. ../lib/unistd.h
... /usr/include/unistd.h
.... /usr/include/sys/unistd.h
.... ../lib/sys/select.h
..... ../lib/sys/time.h
...... /usr/include/sys/time.h
....... /usr/include/sys/_structs.h
....... ../lib/time.h
....... /usr/include/sys/_select.h
..... /usr/include/sys/select.h
...... /usr/include/sys/_structs.h
..... ../lib/signal.h
... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
... ../lib/stdlib.h
... ../lib/getopt.h
.... /usr/include/getopt.h
..... ../lib/unistd.h
.... /usr/include/ctype.h
..... /usr/include/runetype.h
... /usr/include/crt_externs.h
.. gnutls.h
... /sw/include/gnutls/gnutls.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
.... ../lib/time.h
.... /sw/include/gnutls/compat.h
... /sw/include/gnutls/x509.h
. intervals.h
.. dispextern.h
... /usr/X11/include/X11/Xlib.h
.... /usr/X11/include/X11/X.h
.... /usr/X11/include/X11/Xfuncproto.h
.... /usr/X11/include/X11/Xosdefs.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
... /usr/X11/include/X11/Intrinsic.h
.... /usr/X11/include/X11/Xutil.h
..... /usr/X11/include/X11/keysym.h
...... /usr/X11/include/X11/keysymdef.h
.... /usr/X11/include/X11/Xresource.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
.... /usr/X11/include/X11/Core.h
.... /usr/X11/include/X11/Composite.h
.... /usr/X11/include/X11/Constraint.h
.... /usr/X11/include/X11/Object.h
.... /usr/X11/include/X11/RectObj.h
... ../lib/c-strcase.h
.... /usr/llvm-gcc-4.2/bin/../lib/gcc/i686-apple-darwin10/4.2.1/include/stddef.h
... systime.h
.... ../lib/timespec.h
..... ../lib/time.h
.... ../lib/sys/time.h
.. composite.h
. puresize.h
. character.h
.. ../lib/verify.h
. buffer.h
. window.h
. keyboard.h
.. coding.h
. frame.h
. blockinput.h
.. atimer.h
. syssignal.h
. termhooks.h
. ../lib/unistd.h
. /usr/include/fcntl.h
.. /usr/include/sys/fcntl.h
alloc.c: In function ‘allocate_vector’:
alloc.c:3250: warning: comparison is always true due to limited range of data type

Compiling with -g -ggdb does not bring more insight from gdb…

--
Mit friedvollen Grüßen

  Pete

When confronted with actual numbers, a mathematician is at a loss.
				– Steffen Hokland
This bug report was last modified 8 years and 222 days ago.

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