206881 - Segfault in libimglib2 when modules/libpr0n compiled with -O{s,3}

Status: RESOLVED INVALID

(Firefox Build System :: General, defect)

Description

[satadru pramanik]

User-Agent:       Mozilla/5.0 (X11; U; Linux sparc64; en-US; rv:1.4b) Gecko/20030523 Mozilla Firebird/0.6
Build Identifier: Mozilla/5.0 (X11; U; Linux sparc64; en-US; rv:1.4b) Gecko/20030523 Mozilla Firebird/0.6

phoenix compiled with "-O3 -pipe -mcpu=v9 -mtune=ultrasparc"
Always segfaults in libimglib2.
recompiled mozilla/components/libpr0n/ with "-O -pipe -mcpu=v9 =mtune=ultrasparc"
and copied resultant libimglib2.so to dist/bin/components/
Now Phoenix runs fine.

Reproducible: Always

Steps to Reproduce:
1.Compile phoenix with  --enable-optimize="-O3 -pipe -mcpu=v9 -mtune=ultrasparc"
2. run phoenix
3.

Actual Results:  
crash just after this message: 

Fontconfig warning: line 245: invalid edit binding "same"
Fontconfig warning: line 257: invalid edit binding "same"
Xlib:  extension "RENDER" missing on display ":0.0".



Compiled with gcc version 3.3 20030509 (Debian prerelease)

Comment 1

[Mike Connor [:mconnor]]

reporter, are you still having the same problems?

Comment 2

[Adam Schlag]

I have also had this problem on Linux/x86 with both Firebird and SeaMonkey.  The
only optimization flag I needed to use was "-O3", and both browsers would crash
when trying to load a page.  If I change the optimization flag to "-O", then all
is well.  

Incidentally, I am also running on Debian, using compiler gcc 3.3 (gcc version
3.3.1 (Debian)).  Might this have something to do with the compiler, and not
necessarily something to do with the source?

Comment 3

[Jared Jones]

  I am building mozilla-1.4 on a SPARC/Solaris-8 machine using gcc-3.3.1 and I
get a similar segmentation fault with libimglib2.so.  Using this bug's
information I tried (I also tried making the FLAGS set to null):

in modules/libpr0n/build/Makefile, add these lines after "include
$(DEPTH)/config/autoconf.mk"
MODULE_OPTIMIZE_FLAGS = -O
MOZ_OPTIMIZE_FLAGS = -O -mcpu=supersparc

rm modules/libpr0n/build/libimglib2.so
in modules/libpr0n/build, run gmake
cp modules/libpr0n/build/libimglib2.so
/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/components



  I still get the same error, but maybe my implementation was incorrect, please
help!  Below are my compile notes and following the notes are the errors I get.


 mozilla-1.4
unsetenv CFLAGS
unsetenv CXXFLAGS
unsetenv LDFLAGS

the following will enable a build ID:
  setenv MOZILLA_OFFICIAL 1
  setenv BUILD_OFFICIAL 1

./configure --prefix=/home/jjones1/usr/mozilla-1.4 \
--with-ft-prefix=/home/jjones1/usr \
--with-libIDL-prefix=/home/jjones1/usr/gnome-2.4 \
--enable-default-toolkit=gtk2 \
--with-pthreads \
--without-system-jpeg \
--without-system-mng \
--without-system-nspr \
--without-system-png \
--without-system-zlib \
--enable-js-ultrasparc \
--enable-optimize='-O3 -mcpu=supersparc' \
--enable-xft \
--enable-crypto \
--enable-extensions \
--enable-strip \
--disable-debug \
--disable-tests \
--disable-calendar \
--disable-logging \
--disable-jsd \
--disable-ldap \
--disable-xprint \
--disable-pedantic

Note:  --disable-pedantic is for gcc-3.3.1

patch -p0 < ../mozilla_xdefs.patch
  (bugzilla 214959)



$ mozilla -g -d gdb
/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/run-mozilla.sh -g -d gdb
/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/mozilla-bin
MOZILLA_FIVE_HOME=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4
 
LD_LIBRARY_PATH=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4:/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/plugins:/home/jjones1/usr/mozilla-1.4/lib/mre/mre-1.4:=MOZILLA_HOME:/home/jjones1/usr/lib:/home/jjones1/usr/gnome-2.2/lib:/home/jjones1/usr/gnome-2.4/lib:/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4:/home/jjones1/usr/gnome-1.4/lib:/home/jjones1/usr/SUNWmlib/lib:/cad/apps/gnu/gnutools/solaris/lib:/usr/openwin/lib
DISPLAY=:0.0
FONTCONFIG_PATH=/etc/fonts:/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/res/Xft
DYLD_LIBRARY_PATH=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4:/home/jjones1/usr/mozilla-1.4/lib/mre/mre-1.4
    
LIBRARY_PATH=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4:/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/components:/home/jjones1/usr/mozilla-1.4/lib/mre/mre-1.4
      
SHLIB_PATH=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4:/home/jjones1/usr/mozilla-1.4/lib/mre/mre-1.4
         
LIBPATH=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4:/home/jjones1/usr/mozilla-1.4/lib/mre/mre-1.4
       ADDON_PATH=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4
      MOZ_PROGRAM=/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/mozilla-bin
      MOZ_TOOLKIT=
        moz_debug=1
     moz_debugger=gdb
/cad/apps/gnu/solaris/bin/gdb
/home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/mozilla-bin -x /tmp/mozargs16209
GDB is free software and you are welcome to distribute copies of it
 under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.16 (sparc-sun-solaris2.5.1), Copyright 1996 Free Software Foundation,
Inc...(no debugging symbols found)...
(gdb) run
Starting program: /home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/mozilla-bin 
warning: Unable to find dynamic linker breakpoint function.
warning: GDB will be unable to debug shared library initializers
warning: and track explicitly loaded dynamic code.
(no debugging symbols found)...(no debugging symbols found)...(no debugging
symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...(no debugging
symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...(no debugging
symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...(no debugging
symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...(no debugging
symbols found)...(no debugging symbols found)...
(no debugging symbols found)...
Program received signal SIGSEGV, Segmentation fault.
0xfd6922bc in ??
 () from /home/jjones1/usr/mozilla-1.4/lib/mozilla-1.4/components/libimglib2.so
(gdb) 
(gdb) quit
The program is running.  Quit anyway (and kill it)? (y or n) y

Comment 4

[Jared Jones]

  I took out this line during my configure:  --enable-optimize='-O3
-mcpu=supersparc' \ and everything works now.  Although, I do notice a loss in
performance on my Sun-Sparc machine.

  Is there a way to make the optimize switch work with gcc-3.3.1 and mozilla-1.4?

Comment 5

[Simon Paquet [:sipaq]]

Firebird build instructions recommend using O2 for a reason. If very agressive
optimizations are used, stuff like that described in this bug happens.

-> INVALID