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bug#38748: 28.0.50; crash on MacOS 10.15.2
From: |
Eli Zaretskii |
Subject: |
bug#38748: 28.0.50; crash on MacOS 10.15.2 |
Date: |
Thu, 09 Jan 2020 16:16:03 +0200 |
> From: Robert Pluim <rpluim@gmail.com>
> Cc: 38748@debbugs.gnu.org, pipcet@gmail.com, alan@idiocy.org,
> jguenther@gmail.com, andreyk.mad@gmail.com
> Date: Thu, 09 Jan 2020 11:31:25 +0100
>
> Eli> Also, can I please see one backtrace with all the call-stack frames,
> Eli> starting from 'main' and ending at 'handle_fatal_signal'? The
> Eli> original report shows only the top-most 511 frames, and the other one
> Eli> has a lot of ?? (missing symbols) in it.
>
> 'bt full' backtrace attached.
Thanks.
> Thread 2 received signal SIGSEGV, Segmentation fault.
> 0x0000000100221f88 in vector_marked_p (v=0x20a000000000) at alloc.c:3726
> 3726 return XVECTOR_MARKED_P (v);
> (gdb) bt full
> #0 0x0000000100221f88 in vector_marked_p (v=0x20a000000000) at alloc.c:3726
> No locals.
> #1 0x00000001002255e5 in vectorlike_marked_p (header=0x20a000000000)
> at alloc.c:3744
> No locals.
> #2 0x00000001002221c2 in mark_frame (ptr=0x164cc69a0) at alloc.c:6321
> font = 0x20a000000000
> f = 0x164cc69a0
This says that we were marking a frame, and its default font is a
garbled pointer. Are all of the crashes you see happen because of a
faulty frame font in this snippet:
static void
mark_frame (struct Lisp_Vector *ptr)
{
struct frame *f = (struct frame *) ptr;
mark_vectorlike (&ptr->header);
mark_face_cache (f->face_cache);
#ifdef HAVE_WINDOW_SYSTEM
if (FRAME_WINDOW_P (f) && FRAME_OUTPUT_DATA (f))
{
struct font *font = FRAME_FONT (f);
if (font && !vectorlike_marked_p (&font->header)) <<<<<<<<<<<<
mark_vectorlike (&font->header);
}
#endif
}
I hope you still have this crashed session in the debugger. If so,
please tell: do you have many frames in that session, or just a few
(perhaps even one)? I'd like to see some more details about this
frame, if possible.
- bug#38748: 28.0.50; crash on MacOS 10.15.2, (continued)
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pip Cet, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pip Cet, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2,
Eli Zaretskii <=
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Andrii Kolomoiets, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pip Cet, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Andrii Kolomoiets, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/09
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pieter van Oostrum, 2020/01/11
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/11
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pieter van Oostrum, 2020/01/11