From: Daniel Clemente <n142857@gmail.com>
To: Po Lu <luangruo@yahoo.com>
Cc: 71177@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org>
Subject: bug#71177: 30.0.50; crash when opening and closing many TTY frames in succession
Date: Sat, 25 May 2024 11:04:39 +0000 [thread overview]
Message-ID: <CAJKAhPCu1M8oiV_x43uw51y1SKhKiZOnUvZrepApv34T6BoGQQ@mail.gmail.com> (raw)
In-Reply-To: <s54ikz2n2ud.fsf@yahoo.com>
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> That's a red herring. It's because Daniel is running Emacs under GDB
> that his backtrace ends with a SIGPIPE, while the backtrace for the
> crash lies elsewhere.
True, this was a SIGPIPE (still not a crash), and gdb was stopping here. By
running "cont" I could make it continue.
After running "handle SIGPIPE noprint pass", and continuing the same
behaviour for ~30 seconds, I saw the real crash (SIGSEGV).
The cause of the crash is the other bug I reported, bug#71176
(tty-set-up-initial-frame-faces, face_at_buffer_position, default_face =
0x0), so I posted the new backtrace there.
So in here we just discovered that opening+closing frames is a way to
reproduce bug#71176, but I think the bug is 71176 and this one can be
closed.
> It might help if you post the details of how you "launch a new
> emacsclient with a keypress and kill it with another keypress". IOW,
> please describe the recipe to reproduce the problem starting from
> "emacs -Q -nw --daemon".
I found a simpler formula, by launching and killing emasclient in a bash
loop. Details at bug#71176.
On Sat, 25 May 2024 at 00:37, Po Lu <luangruo@yahoo.com> wrote:
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > I think it crashes because of this SIGPIPE. I hope some Unix expert
> > will be able to explain why Emacs gets get SIGPIPE in this scenario.
> > Perhaps because you kill emacsclient too quickly?
>
> That's a red herring. It's because Daniel is running Emacs under GDB
> that his backtrace ends with a SIGPIPE, while the backtrace for the
> crash lies elsewhere.
>
> (gdb) handle SIGPIPE noprint pass
>
> is probably in order, I suspect.
>
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next prev parent reply other threads:[~2024-05-25 11:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-24 17:47 bug#71177: 30.0.50; crash when opening and closing many TTY frames in succession Daniel Clemente
2024-05-24 19:31 ` Eli Zaretskii
2024-05-25 0:37 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-05-25 11:04 ` Daniel Clemente [this message]
2024-05-25 12:43 ` Eli Zaretskii
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