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Re: help debugging a segfault


From: Eli Zaretskii
Subject: Re: help debugging a segfault
Date: Tue, 18 Oct 2016 08:48:08 +0300

> Date: Mon, 17 Oct 2016 13:28:01 -0700 (PDT)
> From: Sam Halliday <address@hidden>
> 
> Typing "bt" when loading the coredump gives
> 
> (gdb) bt
> #0  0x00007fe8cbfabf5f in ?? ()
> #1  0x00000000005da106 in mapcar1 (leni=11, vals=<optimized out>, fn=40, 
> seq=498) at fns.c:2494
> #2  0xffffffffffffffff in ?? ()
> #3  0xffffffffffffffff in ?? ()
> #4  0xffffffffffffffff in ?? ()
> #5  0xffffffffffffffff in ?? ()
> #6  0xffffffffffffffff in ?? ()
> #7  0xffffffffffffffff in ?? ()
> #8  0xffffffffffffffff in ?? ()
> #9  0x000000000000000b in ?? ()
> #10 0x00000000004ee994 in Finternal_merge_in_global_face (face=2, 
> frame=12113136) at xfaces.c:3669
> #11 0x0000000000000000 in ?? ()

This is an optimized build, which is very hard to debug.  I suggest to
reconfigure with "-O0 -gdwarf-4- g3" in CFLAGS, as proposed in
etc/DEBUG.

And please post the details to bug 24358 instead of here.

Thanks.



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