From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Engster Newsgroups: gmane.emacs.bugs Subject: bug#22287: 25.1.50; Sudden jumping point in buffer Date: Sun, 03 Jan 2016 16:47:29 +0100 Message-ID: <87twmumzqm.fsf@engster.org> References: <20160101111008.GA14391@scotty.home> <87y4c6nbte.fsf@engster.org> <20160103130742.GA11570@scotty.home> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1451836102 21611 80.91.229.3 (3 Jan 2016 15:48:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 3 Jan 2016 15:48:22 +0000 (UTC) Cc: 22287@debbugs.gnu.org To: "Stefan-W. 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Hahn's message of "Sun, 3 Jan 2016 14:07:42 +0100") User-Agent: Gnus/5.13001 (Ma Gnus v0.10) Emacs/25.0.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:111151 Archived-At: Stefan-W. Hahn writes: > With this I got (after starting and setting garbage-collection-messages t, > and doing stuff as described in the bug-report): > > ,---- > | *** handle atimers [540 times] > | *** sem start: buffer intervals.c 49722 > | *** sem: buffer intervals.c 49722 > | *** input: rc=nil 49722 49722 > | *** out: rc=nil 49722 49722 > | *** sem: buffer intervals.c 49722 > | *** input: rc=nil 49722 49722 > | *** out: rc=nil 49722 49722 > | *** sem: buffer intervals.c 49722 > | *** input: rc=nil 49722 49722 > | *** out: rc=nil 49722 49722 > | *** sem: buffer intervals.c 49722 > | *** input: rc=nil 49722 49722 > | *** out: rc=nil 49722 49722 > | *** sem: buffer intervals.c 49722 > | *** input: rc=nil 49722 49722 > | *** out: rc=nil 49722 49722 > | *** sem: buffer intervals.c 49722 > | *** input: rc=nil 49722 49722 > | *** out: rc=nil 49722 49722 > | *** handle atimers [10 times] That's interesting. Why do timers run here at all? Since your 'out:'-Message comes before that, it is clear that this is not because of `accept-process-output'. I'm pretty sure now that this is something else than #15045. There, we had the problem that Semantic itself was moving point during lexing and called 'input-pending-p' as well as 'accept-process-output', which both ran timers at the time. If one of the timers forced redisplay, this lead to a sudden change of point in the buffer. We fixed that by making `input-pending-p' not running timers by default, and restoring point before calling `accept-process-output'. This here seems to be something different, in that not Semantic is moving point but some timer (which does not mean there isn't a bug in Semantic here). > | *** sem end: buffer intervals.c 49392 > | Auto-saving...done > | *** handle atimers [32 times] > `---- > > So a running timer is moving point! This makes sense as I cannot reproduce it here with emacs -Q -f semantic-mode I'd suggest that you also start with 'emacs -Q' and activate minor-modes you're using until you see the bug. Reducing `auto-save-interval' might make this less tedious. Also, look at 'timer-list' which of your minor-modes put timers in there (not sure if `timer-idle-list' might be involved as well). -David