Re: 64-bit emacs crashes a lot

[Ryan Johnson]

On 16/08/2013 4:33 PM, Ken Brown wrote:
> On 8/16/2013 3:37 PM, Eli Zaretskii wrote:
> > > 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?
>
> You are brilliant!  I added LDFLAGS='-Wl,--stack,4194304' to the 
> compilation, and the bug is gone.  Thank you.
>
> Ryan, can you confirm that this fixes the problem for your real uses 
> of M-x compile?
I've been using it for an hour or so with no problems. Even the 
optimized build refuses to crash in 200-300 M-x compile cycles, which is 
enough to satisfy me.

Thanks for all the help, I was pulling my hair out with this one...

Ryan