GNU bug report logs - #72025
SEGFAULT when using corfu and lsp-mode with clangd

Previous Next

Full log

View this message in rfc822 format

From: Eli Zaretskii <eliz <at> gnu.org>
To: Andrea Corallo <acorallo <at> gnu.org>
Cc: ravijdelia <at> gmail.com, 72025 <at> debbugs.gnu.org
Subject: bug#72025: SEGFAULT when using corfu and lsp-mode with clangd
Date: Wed, 10 Jul 2024 14:57:23 +0300

> Cc: 72025 <at> debbugs.gnu.org
> From: Andrea Corallo <acorallo <at> gnu.org>
> Date: Wed, 10 Jul 2024 04:06:02 -0400
> 
> Ravi D'Elia <ravijdelia <at> gmail.com> writes:
> 
> > At unpredictable times while editing c++ files, emacs will segfault.
> > I haven't been able to reproduce without lsp-mode, but with how
> > unpredictable this is I don't think that necessarily means much.
> > The problem exists with and without native compilation- this
> > report assumes without.
> >
> > STEPS TO REPRODUCE:
> > - Let '~/minimal' contain the attached init file
> > - Start emacs with 'emacs --init-directory ~/minimal'
> > - Open a c++ file
> > - Edit it, taking care to type quickly and go back to edit within
> >   words. I can usually get a crash within 10 minutes, but I haven't
> >   been able to iterate enough to figure out exactly what is
> >   happening. It's always while typing though, I think in response
> >   to a keydown.
> >
> > Attached is the init file I used to reproduce this, and the backtrace.
> > I had issues with the .gdbinit, which I will hopefully address when
> > I get back from vacation.
> >
> 
> Hi Ravi,
> 
> thanks for reporting, how did you produce the stack trace?  I ask
> because without function names in it is not very useful.
> 
> Here we have some information on how to process backtraces when Emacs
> crashes [1] and here [2] some info on how to run Emacs under gdb (and
> produce the backtrace there).
> 
> Probably debugging Emacs under gdb would be the best option here.

I think he already ran Emacs from GDB, but his Emacs is stripped of
debugging symbols, so GDB couldn't display anything useful.  So the
procedures you mention will not help.  What _would_ help is rebuilding
Emacs with debug info, or downloading the debug info from the distro
where you got the Emacs binaries.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.