From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Pip Cet Newsgroups: gmane.emacs.bugs Subject: bug#21380: 25.0.50; GTK-induced segfault when scheduling timer from window-configuration-change-hook Date: Fri, 29 Apr 2022 15:02:43 +0000 Message-ID: References: <83mvx8252m.fsf@gnu.org> <83k2sc20k6.fsf@gnu.org> <83h9ng1ryx.fsf@gnu.org> <83a8t71qct.fsf@gnu.org> <83fv2ychbg.fsf@gnu.org> <838u8qcenv.fsf@gnu.org> <55E69F07.9060006@gmx.at> <83a8t18gdu.fsf@gnu.org> <87mtg4vyq5.fsf@yahoo.com> <83pml09fed.fsf@gnu.org> <87zgk4uhpw.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5426"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Stefan Monnier , 21380@debbugs.gnu.org To: Po Lu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Apr 29 17:33:16 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nkScO-0001Dz-Ja for geb-bug-gnu-emacs@m.gmane-mx.org; 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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=gjgDYV1HQuLmSLYuD2FT5WmAdlKw3ghOPH1PaYqXZps=; b=jO6wpmge0AQ/93s1kKtheliB/p6ZnGX2ZkVq2IdZq/SXBSMv7ZpcPpU3c4BhMRo250 JVNE4Z0HTGH9y8XLjA/asJo+ExdOufAq9xOUd2Ld1/fkt3Oznz8BvCUCqm4DHX1ZAGFw RxmCMxdUXRMOuBzkVHKmjBbwyU3e1LywuQEig1pwWGM/1Cb0q3UlFx6DejDmAbXOVtGh 8A/Ouwpd+L92ZsFYQSfMLm8eCtMzmJ3xaGBVoUWD8Il/IkfJXn6DqdOmm2ixsTVDgAxl K+VsUkEu6Elhsl0iVDsKtVEOeLlRGmq8w9OtRXVk8kqIj+noz1vgqMr0Ad54BrNh+GVW jacA== X-Gm-Message-State: AOAM530sNvqMK/V4EaoOO362zmOeDdJOVRI90o61EMlVHvpYNAcoQaUs SdhH9o0NxibMux1OkmSqbGwGM1FB0OY+BPTbb84= X-Google-Smtp-Source: ABdhPJwdrv+8Gv5+SlCoK0YZU1fz8h8WwV/kQwhIUsOGA3Quw/q/lEinzvUWHmXDVJNnUKy064fjYcPjeOMDErs0Eqo= X-Received: by 2002:a17:902:bf04:b0:149:c5a5:5323 with SMTP id bi4-20020a170902bf0400b00149c5a55323mr39526311plb.97.1651244600729; Fri, 29 Apr 2022 08:03:20 -0700 (PDT) In-Reply-To: <87zgk4uhpw.fsf@yahoo.com> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:230972 Archived-At: On Fri, Apr 29, 2022 at 1:44 PM Po Lu wrote: > Eli Zaretskii writes: > > IOW, the problem is not that Lisp isn't supposed to run in this > > situation, the problem is that we examine and modify Vtimer_list, so > > we cannot allow any code that could potentially modify that behind our > > backs while we are at that. > > Hmm, okay, thanks for explaining. I guess some code called by the input > polling atimer eventually ends up modifying `timer-list' when input > polling is enabled. Thanks for looking into this! I'm not sure I thought about the way unblock_input will sometimes read asynchronous input, which might make unlikely segfaults like this one more likely if we're not careful. But I must confess I no longer remember the details here clearly. Pip