Segmentation fault when building emacs from git

Segmentation fault when building emacs from git

[Balaji Venkataraman]

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Apologies if this is the wrong mailing list for this.

I'm looking for some tips on how to debug/get past this. I'm on CentOS 5,
trying to build emacs from git master (a39a03a3bf6). It dies at this point:

make[2]: Entering directory `/home//Downloads/src/emacs/lisp'
ELC notifications.elc
ELC paren.elc
ELC password-cache.elc
ELC pcmpl-cvs.elc
ELC pcmpl-gnu.elc

Backtrace:
../src/emacs[0x4f5f13] ../src/emacs[0x4dc1bb] ../src/emacs[0x4f5ece]
../src/emacs[0x4f6323]
/lib64/libpthread.so.0[0x2aef82151ca0]
 ../src/emacs[0x4d4ae5] ../src/emacs[0x4d9219] ../src/emacs[0x54d32c]
../src/emacs[0x54d69d] ../src/emacs[0x54d9b5] ../src/emacs[0x54edef]
../src/emacs[0x54d162] ../src/emacs[0x54d69d] ../src/emacs[0x54d5a3]
../src/emacs[0x5506d6] ../src/emacs[0x54d5a3] ../src/emacs[0x54d69d]
../src/emacs[0x54d5a3] ../src/emacs[0x54d5a3] ../src/emacs[0x56d82b]
../src/emacs[0x56f0e1] ../src/emacs[0x54dd96] ../src/emacs[0x57ed18]
../src/emacs[0x54d97c] ../src/emacs[0x54dc39] ../src/emacs[0x54dfa9]
../src/emacs[0x57078a] ../src/emacs[0x556f0a] ../src/emacs[0x54dd53]
../src/emacs[0x54e38b] ../src/emacs[0x54de60] ../src/emacs[0x57ed18]
../src/emacs[0x54dc39] ../src/emacs[0x57ed18] ../src/emacs[0x54dc39]
../src/emacs[0x57ed18] ../src/emacs[0x54dc39] ../src/emacs[0x57ed18]
../src/emacs[0x54dc39] ../src/emacs[0x57ed18] ../src/emacs[0x54dc39] ...
/bin/sh: line 1: 12306 Segmentation fault EMACSLOADPATH= '../src/emacs'
-batch --no-site-file --no-site-lisp --eval '(setq load-prefer-newer t)' -f
batch-byte-compile notifications.el

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Re: Segmentation fault when building emacs from git

[Paul Eggert]

Balaji Venkataraman wrote:
> I'm looking for some tips on how to debug/get past this. I'm on CentOS 5,
> trying to build emacs from git master (a39a03a3bf6). It dies at this point:
>

Please file a bug report at bug-gnu-emacs@gnu.org.

It'd be helpful if you could isolate which commit causes the problem, using 
git-bisect say.

Also, you might try compiling with '-g3 -O0' and getting a backtrace with GDB.