GNU bug report logs - #47067
28.0.50; [feature/native-comp] Crash while scrolling through dispnew.c

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Message #251 received at 47067 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Andrea Corallo <akrl <at> sdf.org>
Cc: pipcet <at> gmail.com, 47067 <at> debbugs.gnu.org
Subject: Re: bug#47067: 28.0.50; [feature/native-comp] Crash while scrolling
 through dispnew.c
Date: Tue, 16 Mar 2021 15:25:32 +0200

> From: Andrea Corallo <akrl <at> sdf.org>
> Cc: pipcet <at> gmail.com, 47067 <at> debbugs.gnu.org
> Date: Mon, 15 Mar 2021 20:17:18 +0000
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > I still see some strange phenomena with backtraces under GDB, which
> > tell me we sometimes clobber saved registers or something.  How else
> > to explain that one backtrace may be truncated after 20 frames, while
> > the next backtrace shows all the frames back to 'main'?
> >
> > What could explain this? another snafu with setjmp?
> 
> Dunno, but the only place where we emit setjmps is the one now fixed.

Fair enough.  I asked the GDB folks to help me analyze this.

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