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From: Andy Moreton <andrewjmoreton@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 43700@debbugs.gnu.org
Subject: bug#43700: 28.0.50; Crash creating a second frame
Date: Sat, 3 Oct 2020 13:26:09 +0100	[thread overview]
Message-ID: <572e3be7-6f96-90f3-192d-fa0b51f85218@gmail.com> (raw)
In-Reply-To: <83362vhgh9.fsf@gnu.org>

On 03/10/2020 09:16, Eli Zaretskii wrote:
> OK.  x-create-frame in w32fns.c initializes the basic faces of the
> frame, here:
> 
>    /* Init faces first since we need the frame's column width/line
>       height in various occasions.  */
>    init_frame_faces (f);
> 
> I suggest to put a breakpoint after that function returns, and when it
> breaks for the second frame you are creating, put a watchpoint on the
> frame's face cache, like this:
> 
>    (gdb) watch -l f->face_cache->used if f->face_cache->used == 0
> 
> Then produce a backtrace from any time this watchpoint fires.  That
> should show us the culprit.

The watchpoint does not fire before the segfault, so there is clearly 
something wrong with gdb on this platform :-(

     AndyM





  reply	other threads:[~2020-10-03 12:26 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-29 10:46 bug#43700: 28.0.50; Crash creating a second frame Andy Moreton
2020-09-29 14:37 ` Eli Zaretskii
2020-09-29 14:49   ` Andy Moreton
2020-09-30 20:06     ` Andy Moreton
2020-10-01  0:15       ` Andy Moreton
2020-10-01 12:53       ` Eli Zaretskii
2020-10-02  0:38         ` Andy Moreton
2020-10-02 11:49           ` Eli Zaretskii
2020-10-02 23:07             ` Andy Moreton
2020-10-03  8:16               ` Eli Zaretskii
2020-10-03 12:26                 ` Andy Moreton [this message]
2020-10-03 12:45                   ` Eli Zaretskii
2020-10-03 13:40                     ` Andy Moreton
2020-10-03 14:02                       ` Eli Zaretskii
2020-10-03 14:05                     ` Andy Moreton
2020-10-03 14:32                       ` Eli Zaretskii
2020-10-03 17:03                         ` Andy Moreton
2020-10-03 17:18                           ` Eli Zaretskii
2020-10-03 17:21                           ` Lars Ingebrigtsen
2020-10-03 17:54                             ` Eli Zaretskii
2020-10-03 17:56                               ` Lars Ingebrigtsen
2020-10-03 18:00                                 ` Eli Zaretskii
2020-10-03 18:21                               ` Andy Moreton
2020-10-03 18:29                                 ` Eli Zaretskii
2020-10-03 17:51                           ` Eli Zaretskii

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