Re: 64-bit emacs crashes a lot

[Eli Zaretskii]

> Date: Fri, 16 Aug 2013 13:12:17 -0400
> From: Ken Brown <address@hidden>
> CC: address@hidden, address@hidden
> 
> I'm attaching two of them.  The first was a SEGV, the second was an abort.

Both in regex.c.

> Lisp Backtrace:
> 
> Breakpoint 1, terminate_due_to_signal (sig=6, backtrace_limit=2147483647)
>     at emacs.c:341
> 341   {
> The program being debugged stopped while in a function called from GDB.
> Evaluation of the expression containing the function
> (backtrace_function) will be abandoned.
> When the function is done executing, GDB will silently stop.

Here, GDB called backtrace_function, which triggered an assertion
violation.  Which probably means that the array of specbindings
(specpdl) is corrupted.

Is it possible that the stack of the 64-bit Cygwin binary is too
small?  Can you try building Emacs with a larger stack?