From mboxrd@z Thu Jan  1 00:00:00 1970
From: "numbchild@gmail.com" <numbchild@gmail.com>
Subject: Emacs sagmentation fault error on a big org-mode file movement
Date: Sat, 16 Dec 2017 12:27:58 +0800
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I have a big org-mode file which is overview at startup. When I navigate
around with [C-v] and [M-v]. The Emacs crashed.

Here is the output from command-line:
```
Fatal error 11: Segmentation fault
Backtrace:
emacs[0x51195e]
emacs[0x4f739a]
emacs[0x50fe3e]
emacs[0x510058]
emacs[0x5100dc]
/usr/lib/libpthread.so.0(+0x11da0)[0x7fcb1cdcada0]
emacs[0x4caa74]
emacs[0x45b2b5]
emacs[0x4613e9]
emacs[0x41eb42]
emacs[0x42087c]
emacs[0x42157a]
emacs[0x421567]
emacs[0x421567]
emacs[0x42351d]
emacs[0x458015]
emacs[0x501893]
emacs[0x50465a]
emacs[0x5061dc]
emacs[0x56c85e]
emacs[0x4f7754]
emacs[0x56c7cd]
emacs[0x4f76eb]
emacs[0x4fc313]
emacs[0x4fc636]
emacs[0x41b302]
/usr/lib/libc.so.6(__libc_start_main+0xea)[0x7fcb1bf30f4a]
emacs[0x41c01a]
[1]    17259 segmentation fault (core dumped)  emacs --debug-init
```
Is there a way to debug this?
I know it is not possible to invoke edebug on anything internal Emacs.
So is there any system (Linux)  solution?
Like system process dump or traceback.

I'm using latest version `master` branch source code Org-mode.
Emacs is from compiled `master` branch  source code too.

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