* bug#19980: closed (Re: Segfault in master)
[not found] ` <handler.19980.D19959.142558572217560.notifdone@debbugs.gnu.org>
@ 2015-03-05 21:20 ` Eric Hanchrow
0 siblings, 0 replies; 3+ messages in thread
From: Eric Hanchrow @ 2015-03-05 21:20 UTC (permalink / raw)
To: 19980
[-- Attachment #1: Type: text/plain, Size: 28749 bytes --]
That commit fixed it for me; thanks!
On Thu, Mar 5, 2015 at 12:03 PM GNU bug Tracking System <
help-debbugs@gnu.org> wrote:
> Your bug report
>
> #19959: master: `Backtrace after malloc arena is corrupted` causes
> segfault during build
>
> 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 19980@debbugs.gnu.org.
>
> --
> 19959: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19959
> GNU Bug Tracking System
> Contact help-debbugs@gnu.org with problems
>
>
>
> ---------- Forwarded message ----------
> From: Paul Eggert <eggert@cs.ucla.edu>
> To: Colin Baxter <m43cap@yandex.com>, emacs-devel@gnu.org
> Cc: 19959-done@debbugs.gnu.org
> Date: Thu, 05 Mar 2015 12:01:53 -0800
> Subject: Re: Segfault in master
> On 03/05/2015 01:31 AM, Colin Baxter wrote:
> > Patch worked for me. Thanks David.
> >
> >
>
> Thanks, I installed a (slightly different) patch as commit
> cbc9d8d4269f2cca7950060b5e37747b27dac1de and am marking Emacs Bug#19959
> as fixed. I also filed a bug report with the glibc folks (glibc bug
> 18084).
>
>
>
>
> ---------- Forwarded message ----------
> From: Eric Hanchrow <eric.hanchrow@gmail.com>
> To: bug-gnu-emacs@gnu.org
> Cc:
> Date: Mon, 02 Mar 2015 03:28:41 +0000
> Subject: master: `Backtrace after malloc arena is corrupted` causes
> segfault during build
> I built emacs from the "master" branch ofhttps://
> github.com/emacs-mirror/emacs. It failed as shown below.
>
> vagrant@vagrant-ubuntu-server-trusty-32:~/git-repositories/3rd-party/emacs$
> cat /etc/issue
> Ubuntu 14.04.2 LTS \n \l
>
> vagrant@vagrant-ubuntu-server-trusty-32:~/git-repositories/3rd-party/emacs$
> uname -a
> Linux vagrant-ubuntu-server-trusty-32 3.13.0-46-generic #76-Ubuntu SMP Thu
> Feb 26 18:52:49 UTC 2015 i686 i686 i686 GNU/Linux
> vagrant@vagrant-ubuntu-server-trusty-32:~/git-repositories/3rd-party/emacs$
> git show --stat
> commit b74db6347cf5cac1ebd4c604fd5691c588fd8e32
> Author: Paul Eggert <eggert@cs.ucla.edu>
> Date: Tue Feb 24 16:34:13 2015 -0800
>
> Backtrace after malloc arena is corrupted
>
> Without this change, if the malloc arena is corrupted and then
> 'backtrace' is called, the backtrace can crash because 'backtrace'
> calls 'malloc'. For more, please see:
> https://sourceware.org/ml/libc-alpha/2015-02/msg00678.html
> * emacs.c (main): Initialize tables used by 'backtrace'.
> * sysdep.c (emacs_backtrace): Document the newly used part of the API.
>
> src/ChangeLog | 10 ++++++++++
> src/emacs.c | 2 ++
> src/sysdep.c | 12 +++++++++++-
> 3 files changed, 23 insertions(+), 1 deletion(-)
>
> vagrant@vagrant-ubuntu-server-trusty-32:~/git-repositories/3rd-party/emacs$
> ./autogen.sh && ./configure --without-x && make
> Checking whether you have the necessary tools...
> (Read INSTALL.REPO for more details on building Emacs)
>
> Checking for autoconf (need at least version 2.65)...
> ok
> Checking for automake (need at least version 1.11)...
> ok
> Your system has the required tools.
> Running 'autoreconf -fi -I m4' ...
> configure.ac:756: installing 'build-aux/compile'
> configure.ac:139: installing 'build-aux/config.guess'
> configure.ac:139: installing 'build-aux/config.sub'
> configure.ac:136: installing 'build-aux/install-sh'
> configure.ac:136: installing 'build-aux/missing'
> lib/Makefile.am: installing 'build-aux/depcomp'
> You can now run './configure'.
> checking for xcrun... no
> checking for GNU Make... make
> checking for a BSD-compatible install... /usr/bin/install -c
> checking whether build environment is sane... yes
> checking for a thread-safe mkdir -p... /bin/mkdir -p
> checking for gawk... gawk
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> checking build system type... i686-pc-linux-gnu
> checking host system type... i686-pc-linux-gnu
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> checking whether the C compiler works... yes
> checking for C compiler default output file name... a.out
> checking for suffix of executables...
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> checking dependency style of gcc... gcc3
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> -std=gnu99
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> checking for lgetfilecon in -lselinux... yes
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> checking gpm.h usability... yes
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> checking for Gpm_Open in -lgpm... yes
> checking for LIBXML2... yes
> checking for htmlReadMemory in -lxml2... yes
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> checking for maillock in -lmail... no
> checking for maillock in -llockfile... yes
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> checking for clock_gettime... yes
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> checking for library containing backtrace_symbols_fd... none required
> checking whether fcntl handles F_DUPFD correctly... yes
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> checking for memrchr... yes
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> checking sys/acl.h usability... no
> checking sys/acl.h presence... no
> checking for sys/acl.h... no
> configure: WARNING: libacl development library was not found or not usable.
> configure: WARNING: GNU Emacs will be built without ACL support.
> checking whether readlink signature is correct... yes
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> checking whether readlinkat signature is correct... yes
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> checking for volatile sig_atomic_t... yes
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> checking for unsetenv() return type... int
> checking whether unsetenv obeys POSIX... yes
> checking for variable-length arrays... yes
> checking whether getdtablesize works... yes
>
> Configured for `i686-pc-linux-gnu'.
>
> Where should the build process find the source code? .
> What compiler should emacs be built with? gcc -std=gnu99
> -g3 -O2
> Should Emacs use the GNU version of malloc? yes
> (Using Doug Lea's new malloc from the GNU C Library.)
> Should Emacs use a relocating allocator for buffers? no
> Should Emacs use mmap(2) for buffer allocation? no
> What window system should Emacs use? none
> What toolkit should Emacs use? none
> Where do we find X Windows header files? NONE
> Where do we find X Windows libraries? NONE
> Does Emacs use -lXaw3d? no
> Does Emacs use -lXpm? no
> Does Emacs use -ljpeg? no
> Does Emacs use -ltiff? no
> Does Emacs use a gif library? no
> Does Emacs use a png library? no
> Does Emacs use -lrsvg-2? no
> Does Emacs use imagemagick? no
> Does Emacs support sound? yes
> Does Emacs use -lgpm? yes
> Does Emacs use -ldbus? yes
> Does Emacs use -lgconf? no
> Does Emacs use GSettings? no
> Does Emacs use a file notification library? yes -lgio (gfile)
> Does Emacs use access control lists? no
> Does Emacs use -lselinux? yes
> Does Emacs use -lgnutls? yes
> Does Emacs use -lxml2? yes
> Does Emacs use -lfreetype? no
> Does Emacs use -lm17n-flt? no
> Does Emacs use -lotf? no
> Does Emacs use -lxft? no
> Does Emacs directly use zlib? yes
> Does Emacs use toolkit scroll bars? no
>
>
> checking that generated files are newer than configure... done
> configure: creating ./config.status
> config.status: creating ./doc/man/emacs.1
> config.status: creating Makefile
> config.status: creating lib/Makefile
> config.status: creating lib-src/Makefile
> config.status: creating oldXMenu/Makefile
> config.status: creating doc/emacs/Makefile
> config.status: creating doc/misc/Makefile
> config.status: creating doc/lispintro/Makefile
> config.status: creating doc/lispref/Makefile
> config.status: creating src/Makefile
> config.status: creating lwlib/Makefile
> config.status: creating lisp/Makefile
> config.status: creating leim/Makefile
> config.status: creating nextstep/Makefile
> config.status: creating nt/Makefile
> config.status: creating test/automated/Makefile
> config.status: creating admin/unidata/Makefile
> config.status: creating admin/grammars/Makefile
> config.status: creating src/config.h
> config.status: executing depfiles commands
> config.status: executing src/epaths.h commands
> config.status: executing src/.gdbinit commands
> config.status: executing doc/emacs/emacsver.texi commands
> config.status: executing etc-refcards-emacsver.tex commands
> make -C lib all
> make[1]: Entering directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lib'
> GEN alloca.h
> GEN c++defs.h
> GEN arg-nonnull.h
> GEN warn-on-use.h
> GEN dirent.h
> GEN fcntl.h
> GEN inttypes.h
> GEN signal.h
> GEN stdalign.h
> GEN stddef.h
> GEN stdio.h
> GEN stdlib.h
> GEN string.h
> GEN sys/select.h
> GEN sys/stat.h
> GEN sys/time.h
> GEN sys/types.h
> GEN time.h
> GEN unistd.h
> make all-am
> make[2]: Entering directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lib'
> CC allocator.o
> CC binary-io.o
> CC c-ctype.o
> CC c-strcasecmp.o
> CC c-strncasecmp.o
> CC careadlinkat.o
> CC close-stream.o
> CC count-one-bits.o
> CC count-trailing-zeros.o
> CC md5.o
> CC sha1.o
> CC sha256.o
> CC sha512.o
> CC dtoastr.o
> CC dtotimespec.o
> CC filemode.o
> CC gettime.o
> CC pipe2.o
> CC acl-errno-valid.o
> CC file-has-acl.o
> CC qcopy-acl.o
> CC qset-acl.o
> CC stat-time.o
> CC strftime.o
> CC timespec.o
> CC timespec-add.o
> CC timespec-sub.o
> CC u64.o
> CC unistd.o
> CC utimens.o
> CC openat-die.o
> CC save-cwd.o
> CC fcntl.o
> CC sig2str.o
> AR libgnu.a
> make[2]: Leaving directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lib'
> make[1]: Leaving directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lib'
> make -C lib-src all
> make[1]: Entering directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lib-src'
> CC regex.o
> CCLD etags
> CCLD ctags
> CCLD emacsclient
> CCLD ebrowse
> CCLD profile
> CC pop.o
> CCLD movemail
> CCLD hexl
> CCLD update-game-score
> CCLD make-docfile
> make[1]: Leaving directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lib-src'
> make -C src VCSWITNESS='$(srcdir)/../.git/logs/HEAD' all
> make[1]: Entering directory
> `/home/vagrant/git-repositories/3rd-party/emacs/src'
> GEN globals.h
> CC vm-limit.o
> CC dispnew.o
> CC frame.o
> CC scroll.o
> CC xdisp.o
> CC menu.o
> CC window.o
> CC charset.o
> CC coding.o
> CC category.o
> CC ccl.o
> CC character.o
> CC chartab.o
> CC bidi.o
> CC cm.o
> CC term.o
> CC terminal.o
> CC xfaces.o
> CC dbusbind.o
> CC emacs.o
> CC keyboard.o
> CC macros.o
> CC keymap.o
> CC sysdep.o
> CC buffer.o
> CC filelock.o
> CC insdel.o
> CC marker.o
> CC minibuf.o
> CC fileio.o
> CC dired.o
> CC cmds.o
> CC casetab.o
> CC casefiddle.o
> CC indent.o
> CC search.o
> CC regex.o
> CC undo.o
> CC alloc.o
> CC data.o
> GEN buildobj.h
> CC doc.o
> CC editfns.o
> CC callint.o
> CC eval.o
> CC floatfns.o
> CC fns.o
> CC font.o
> CC print.o
> CC lread.o
> CC syntax.o
> CC unexelf.o
> CC bytecode.o
> CC process.o
> CC gnutls.o
> CC callproc.o
> CC region-cache.o
> CC sound.o
> CC atimer.o
> CC doprnt.o
> CC intervals.o
> CC textprop.o
> CC composite.o
> CC xml.o
> CC gfilenotify.o
> CC profiler.o
> CC decompress.o
> CC xgselect.o
> CC terminfo.o
> CC lastfile.o
> CCLD temacs
> /bin/mkdir -p ../etc
> : paxctl -r temacs
> : setfattr -n user.pax.flags -v er temacs
> make -C ../lisp update-subdirs
> make[2]: Entering directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lisp'
> for file in `find . -type d -print`; do case $file in .*/cedet* | .*/leim*
> ) ;; *) wins="$wins${wins:+ }$file" ;; esac; done; \
> for file in $wins; do \
> ./../build-aux/update-subdirs $file; \
> done;
> make[2]: Leaving directory
> `/home/vagrant/git-repositories/3rd-party/emacs/lisp'
> ./temacs --batch --load loadup bootstrap
> make[1]: *** [bootstrap-emacs] Segmentation fault (core dumped)
> make[1]: Leaving directory
> `/home/vagrant/git-repositories/3rd-party/emacs/src'
> make: *** [src] Error 2
> vagrant@vagrant-ubuntu-server-trusty-32:~/git-repositories/3rd-party/emacs/src$
> gdb temacs
> GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
> Copyright (C) 2014 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i686-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
> <http://www.gnu.org/software/gdb/documentation/>.
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from temacs...done.
> warning: File
> "/home/vagrant/git-repositories/3rd-party/emacs/src/.gdbinit" auto-loading
> has been declined by your `auto-load safe-path' set to
> "$debugdir:$datadir/auto-load".
> To enable execution of this file add
> add-auto-load-safe-path
> /home/vagrant/git-repositories/3rd-party/emacs/src/.gdbinit
> line to your configuration file "/home/vagrant/.gdbinit".
> To completely disable this security protection add
> set auto-load safe-path /
> line to your configuration file "/home/vagrant/.gdbinit".
> For more information about this security protection see the
> "Auto-loading safe path" section in the GDB manual. E.g., run from the
> shell:
> info "(gdb)Auto-loading safe path"
> (gdb) run --batch --load loadup bootstrap
> Starting program:
> /home/vagrant/git-repositories/3rd-party/emacs/src/temacs --batch --load
> loadup bootstrap
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
> process 8435 is executing new program:
> /home/vagrant/git-repositories/3rd-party/emacs/src/temacs
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
>
> Program received signal SIGSEGV, Segmentation fault.
> __GI___backtrace (array=array@entry=0xbfffedcc, size=size@entry=0) at
> ../sysdeps/i386/backtrace.c:141
> 141 ../sysdeps/i386/backtrace.c: No such file or directory.
> (gdb) bt
> #0 __GI___backtrace (array=array@entry=0xbfffedcc, size=size@entry=0) at
> ../sysdeps/i386/backtrace.c:141
> #1 0x080ed543 in emacs_backtrace (backtrace_limit=backtrace_limit@entry=-1)
> at sysdep.c:2177
> #2 0x0804f744 in main (argc=<optimized out>, argv=0xbffff6d4) at
> emacs.c:887
> (gdb)
>
>
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