bug#41240: 26.3; crash on startup when running package-refresh-contents

[Steve Lorimer]

Thanks Eli.

I built 26.3 from source and it no longer crashes - must be an issue with the snap - in fact, I've found a related issue here: https://github.com/alexmurray/emacs-snap/issues/12

Thanks

Steve

On Wed, 13 May 2020 at 13:12, Eli Zaretskii <eliz@gnu.org> wrote:

> From: Steve Lorimer <steve.lorimer@gmail.com>
> Date: Wed, 13 May 2020 12:41:49 -0500
>
> I am running emacs 26.3 on ubuntu 20.04, installed via snap from [scapcraft.io/emacs]
> (https://snapcraft.io/emacs), the `latest/stable 26.3` snap.
>
>     $ emacs --version
>     GNU Emacs 26.3
>     ...
>     
> I have distilled my `init.el` file down to the following bare minimum:
>
>     (require 'package)
>     (setq package-archives '(("gnu" . "https://elpa.gnu.org/packages/")))
>     (package-initialize)
>     (package-refresh-contents)
>
> Starting emacs with this `init.el` file results in a crash
>
>     Fatal error 11: Segmentation fault
>     Backtrace:
>     /snap/emacs/296/usr/bin/emacs[0x58f0c7]
>     ...
>
> Loading the core file in gdb I get the following stack trace:
>
>     #0  0x00007f8ce2e65727 in raise () from /snap/core18/current/lib/x86_64-linux-gnu/libpthread.so.0
>     #1  0x0000000000567d08 in terminate_due_to_signal ()
>     #2  0x000000000058e802 in handle_fatal_signal ()
>     #3  0x000000000058e7d3 in deliver_thread_signal ()
>     #4  0x000000000058e83d in deliver_fatal_thread_signal ()
>     #5  0x000000000058e9f9 in handle_sigsegv ()
>     #6  <signal handler called>
>     #7  0x00007f8ce9cbeac8 in ?? () from /snap/core18/current/lib64/ld-linux-x86-64.so.2
>     #8  0x00007f8ce9cc70bd in ?? () from /snap/core18/current/lib64/ld-linux-x86-64.so.2
>     #9  0x00007f8ce22c92df in _dl_catch_exception () from
> /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #10 0x00007f8ce9cc67ca in ?? () from /snap/core18/current/lib64/ld-linux-x86-64.so.2
>     #11 0x00007f8ce22c83ad in ?? () from /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #12 0x00007f8ce22c92df in _dl_catch_exception () from
> /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #13 0x00007f8ce22c936f in _dl_catch_error () from /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #14 0x00007f8ce22c84d9 in __libc_dlopen_mode () from
> /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #15 0x00007f8ce22aa886 in ?? () from /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #16 0x00007f8ce22ab088 in __nss_lookup_function () from
> /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #17 0x00007f8ce2267cf3 in ?? () from /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #18 0x00007f8ce2269ce4 in getaddrinfo () from /snap/core18/current/lib/x86_64-linux-gnu/libc.so.6
>     #19 0x0000000000671b31 in Fmake_network_process ()

Looks like some problem with your system libraries: the crash is deep
inside the C library.