Subject: bug#45603: 28.0.50; feature_native-comp: Fatal error 11: Segmentation fault

From: Andrea Corallo <[email-masked]>
Date: Sun, 03 Jan 2021 20:08:35 +0000

[re-adding the bug in CC]

Gregor Zattler <[email-masked]> writes:

[...]

> With CFLAGS -g-O2 and comp-speed = 2 I get:
>
>
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/cl-lib.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/seq.el...
>
> In toplevel form:
> seq.el:395:16: Warning: ‘seq-contains’ is an obsolete generic function (as of
>     27.1); use ‘seq-contains-p’ instead.
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/gv.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/cl-extra.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/easymenu.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/help-mode.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/cl-macs.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/cl-seq.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/rx.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/subr-x.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/warnings.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/url/url-vars.el...
> Compiling /home/grfz/src/emacs-feature_native-comp/lisp/emacs-lisp/map.el...
> Fatal error 11: Segmentation fault
> Backtrace:
> /home/grfz/src/emacs-feature_native-comp/src/emacs[0x57278b]
> /home/grfz/src/emacs-feature_native-comp/src/emacs[0x428148]
> /home/grfz/src/emacs-feature_native-comp/src/emacs[0x429b56]
> /home/grfz/src/emacs-feature_native-comp/src/emacs[0x570d68]
> /home/grfz/src/emacs-feature_native-comp/src/emacs[0x570dd9]
> /lib/x86_64-linux-gnu/libpthread.so.0(+0x12730)[0x7f3928117730]

[...]

Hi Gregor,

would be nice if you could decript the backtrace using the technique
describe here:
<https://www.gnu.org/software/emacs/manual/html_node/emacs/Crashing.html>

Thanks!

  Andrea