From: martin rudalics <rudalics@gmx.at>
To: Eli Zaretskii <eliz@gnu.org>
Cc: m.sujith@gmail.com, 30182@debbugs.gnu.org
Subject: bug#30182: Update
Date: Wed, 24 Jan 2018 09:39:38 +0100 [thread overview]
Message-ID: <5A68464A.1060703@gmx.at> (raw)
In-Reply-To: <834lncny6z.fsf@gnu.org>
>> We don't know whether `timer-list' had actually 5 elements when
>> running the above code.
>
> If it didn't, then the 5th element could have only been added by
> another thread.
Why another thread?
> Is that possible? This is a GTK build with system
> tooltips, right? And even in such a configuration the tooltips are
> popped up in the context of the main thread, is that so? So how could
> the list be modified while copy-sequence runs?
>
>> And Fmake_list can rarely_quit.
>
> Not sure how quitting in Fmake_list could explain anything. If it
> quits, it just throws to top-level, and that's all, right?
Fmake_list does
for (EMACS_INT size = XFASTINT (length); 0 < size; size--)
{
val = Fcons (init, val);
rarely_quit (size);
}
so IIUC rarely_quit is eventually called with size zero. Now we have
rarely_quit (unsigned short int count)
{
if (! count)
maybe_quit ();
which, if count is zero, calls maybe_quit which according to
if (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
process_quit_flag ();
else if (pending_signals)
process_pending_signals ();
may call process_pending_signals which does
do_pending_atimers ();
which may eventually do a schedule_atimer.
So IMHO the problem is not that rarely_quit "just throws to top-level"
but might add a timer on the fly while the timer list is copied.
martin
next prev parent reply other threads:[~2018-01-24 8:39 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-20 6:26 bug#30182: 27.0.50; Crash when doing mouse-over on modeline Sujith
2018-01-20 6:28 ` bug#30182: Update Sujith
2018-01-20 10:35 ` martin rudalics
2018-01-20 10:45 ` Sujith
2018-01-20 14:12 ` martin rudalics
2018-01-20 15:27 ` Eli Zaretskii
2018-01-21 2:15 ` Sujith
2018-01-21 3:39 ` Eli Zaretskii
2018-01-21 3:55 ` Sujith
2018-01-21 16:15 ` Eli Zaretskii
2018-01-21 18:29 ` Sujith
2018-01-22 9:15 ` martin rudalics
2018-01-22 15:09 ` Sujith
2018-01-22 17:37 ` Eli Zaretskii
2018-01-22 18:59 ` martin rudalics
2018-01-22 20:40 ` Eli Zaretskii
2018-01-23 18:44 ` martin rudalics
2018-01-23 19:53 ` Eli Zaretskii
2018-01-24 8:39 ` martin rudalics
2018-01-23 2:49 ` Sujith
2018-01-23 16:18 ` Eli Zaretskii
2018-01-23 17:07 ` Sujith
2018-01-23 17:25 ` Eli Zaretskii
2018-01-23 18:10 ` Eli Zaretskii
2018-01-23 18:45 ` martin rudalics
2018-01-23 19:51 ` Eli Zaretskii
2018-01-24 8:38 ` martin rudalics
2018-01-24 19:10 ` Eli Zaretskii
2018-01-24 20:05 ` martin rudalics
2018-01-23 18:44 ` martin rudalics
2018-01-23 19:59 ` Eli Zaretskii
2018-01-24 8:39 ` martin rudalics [this message]
2018-01-24 19:13 ` Eli Zaretskii
2018-01-24 20:06 ` martin rudalics
2018-01-27 8:26 ` martin rudalics
2018-01-28 0:53 ` Sujith
2018-01-28 8:26 ` martin rudalics
2018-01-29 5:13 ` Sujith
2018-01-29 10:04 ` martin rudalics
2018-01-29 15:50 ` Eli Zaretskii
2018-01-30 8:30 ` martin rudalics
2018-01-30 13:32 ` Eli Zaretskii
2018-01-31 9:31 ` martin rudalics
2018-01-31 14:43 ` Eli Zaretskii
2018-02-01 2:29 ` Sujith
2018-02-01 9:26 ` martin rudalics
2018-02-01 17:44 ` Eli Zaretskii
2018-02-02 8:28 ` martin rudalics
2018-02-02 8:37 ` martin rudalics
2018-02-02 16:00 ` Eli Zaretskii
2018-02-03 9:03 ` martin rudalics
2018-02-03 10:29 ` Eli Zaretskii
2018-02-04 10:01 ` martin rudalics
2018-02-04 18:21 ` Eli Zaretskii
2018-02-06 9:28 ` martin rudalics
2018-02-10 9:47 ` martin rudalics
2018-02-02 14:14 ` Noam Postavsky
2018-02-02 16:11 ` Eli Zaretskii
2018-02-03 9:04 ` martin rudalics
2018-02-03 10:30 ` Eli Zaretskii
2018-02-04 10:01 ` martin rudalics
2018-02-04 18:01 ` Eli Zaretskii
2018-01-29 15:53 ` Eli Zaretskii
2018-01-30 8:30 ` martin rudalics
2018-01-30 13:34 ` Eli Zaretskii
2018-01-31 9:31 ` martin rudalics
2018-01-31 14:44 ` Eli Zaretskii
2018-01-21 18:37 ` Sujith
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