bug#36902: Emacs crashed under X11 suddenly

[Eli Zaretskii]

> From: leo <devel@halloleo.hailmail.net>
> Date: Sat, 03 Aug 2019 16:34:24 +1000
> 
> Emacs crashed under X11 suddenly. Emacs was idle for a few minutes. This
> has append before, but does not happen all the time.
> 
> Emacs was running under RHEL 6 and displayed via the X server MobaXterm
> on Windows 7.
> 
> Emacs outputted the following on the console it was started from:
> 
> Fatal error 6: Aborted
> Backtrace:
> emacs[0x504ba2]
> emacs[0x4ea224]
> emacs[0x504c33]
> emacs[0x450752]
> emacs[0x452ddd]
> emacs[0x599f24]
> emacs[0x5a16b5]
> emacs[0x4ea044]
> emacs[0x4b9ff2]
> emacs[0x4ba126]
> /usr/lib64/libX11.so.6(_XIOError+0x4e)[0x38d804488e]
> /usr/lib64/libX11.so.6(_XEventsQueued+0x7d)[0x38d80436ed]
> /usr/lib64/libX11.so.6(XPending+0x5d)[0x38d803437d]
> /usr/lib64/libgdk-x11-2.0.so.0[0x38dac60492]
> /lib64/libglib-2.0.so.0(g_main_context_prepare+0x1a6)[0x38d6044496]
> /lib64/libglib-2.0.so.0[0x38d60448e1]
> /lib64/libglib-2.0.so.0(g_main_context_pending+0x64)[0x38d6044fd4]
> /usr/lib64/libgtk-x11-2.0.so.0(gtk_events_pending+0x19)[0x38dd54dc19]

Please use the technique described in the Emacs manual's node
"Crashing" to convert these addresses into a human-readable list of
files, function names, and line numbers.

Thanks.