Received: (at 61942) by debbugs.gnu.org; 14 Mar 2025 07:06:09 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Mar 14 03:06:09 2025 Received: from localhost ([127.0.0.1]:59823 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tsz7Q-00064G-Se for submit <at> debbugs.gnu.org; Fri, 14 Mar 2025 03:06:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46728) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1tsz7O-00063J-4U for 61942 <at> debbugs.gnu.org; Fri, 14 Mar 2025 03:06:07 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1tsz7G-000301-Rl; Fri, 14 Mar 2025 03:05:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=7PxNFsm63KeA94Gq/Q4/9aOLbQWTTJl5qAJ6wMibluo=; b=NEo/+jwKblsW S233UqGoqj0lv1BcjExiQSD1MkbHAA9RiEGehQcdgGaH0XX2t/n32KqXPpwChTEidabHrvHkY+HpL wvLRU02Jk5UFzai/spCnqF5Aky2DNMwa4FfRxAaOa7dj+ourra27Ihd2dK/zlH4sRHaBWdrg4BIMO c+LGpfykYSyKeiTtuf3143vmnH7L/QB0VvXlcsFrhWU0lNeC68fszv+xRHrTROs0bIPUseQxjb8V/ m2WgEdfT1AeW+a98H70nAYltlpyoaL9iQkarzXFkMQ3a/8REmLMX6KR8Y8AdxCO4+UO3xdUdedEmZ E3Y06eFhL+0Iiw8PAxD+9w==; Date: Fri, 14 Mar 2025 09:05:55 +0200 Message-Id: <865xkc148c.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Tom Tromey <tom@HIDDEN> In-Reply-To: <871pv0wui1.fsf@HIDDEN> (message from Tom Tromey on Thu, 13 Mar 2025 14:22:46 -0600) Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer References: <87y1od8zzs.fsf@HIDDEN> <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> <871pv3erfm.fsf@HIDDEN> <871pv0wui1.fsf@HIDDEN> X-Spam-Score: -1.6 (-) X-Debbugs-Envelope-To: 61942 Cc: dmitry@HIDDEN, tom@HIDDEN, 61942 <at> debbugs.gnu.org, spwhitton@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.6 (--) > Cc: Dmitry Gutov <dmitry@HIDDEN>, Tom Tromey <tom@HIDDEN>, > 61942 <at> debbugs.gnu.org > From: Tom Tromey <tom@HIDDEN> > Date: Thu, 13 Mar 2025 14:22:46 -0600 > > > Do we have a reproducer for this? Otherwise, I'd like to suggest > > closing the report for now. > > I encounter this quite a bit -- several times a week. > > All it really seems to take is paging through a diff with some very > large hunks. > > I tried finding a reproducer on one of my current branches but couldn't. > > Anyway, closing this is premature since there is still a bug here. There's no reason to keep a bug open if no one is working on it and we don't have way of reproducing it to enable such work. So please try to show a recipe for reproducing the problem, even if the recipe is not 100% reliable. Doing so will go a long way towards ensuring we do identify and solve the bug. Thanks.
bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
Full text available.Received: (at 61942) by debbugs.gnu.org; 14 Mar 2025 03:49:09 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Mar 13 23:49:09 2025 Received: from localhost ([127.0.0.1]:59249 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tsw2n-0002rq-Fl for submit <at> debbugs.gnu.org; Thu, 13 Mar 2025 23:49:09 -0400 Received: from sendmail.purelymail.com ([34.202.193.197]:42606) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <spwhitton@HIDDEN>) id 1tsw2l-0002rP-Al for 61942 <at> debbugs.gnu.org; Thu, 13 Mar 2025 23:49:08 -0400 DKIM-Signature: a=rsa-sha256; b=D3atdKO1iibEviN0GVsXkBd9lkyTQSRMLUdOzT3q2wqAz2rC6250crCIvVbGfbYIwO41bPEhMpF0f7UKHC09jPVuPiEyFswsJWDrhPeIN7+oiD/X74y8swGSkC6kfKX7Wgr54DeKKGXK7nDqKuW5O5NRSCH8vmouezLVtAEZJWY+p4gUwXGTw/biIknKSyWlsKi/LR6JHcV1UqQuItuYhkOYx0NdUNNpJtSmh/EOElzKj6QV+xPo6bczwSoXuAnCsXH3fb/t8XQlAz1ZNeJ35P/7jj1no3TKtm3/XOIbuPjVT2R6dzB/7S+uybvP2XFVaBFdWFG3uPQLpOpCVT05Mg==; s=purelymail1; d=spwhitton.name; v=1; bh=F1A4GphcTDFC+Yf9XniYO1rBerOKtDJdz7eN13gPdnY=; h=Received:Received:From:To:Subject:Date; DKIM-Signature: a=rsa-sha256; b=fw9z6onPZEBgEvEGh74IAunw1HwCiJHuO81TS5MV7fIHI/nTpZW7O8DougJe36++pixHybNroV9YB/bGcJ0p2Gzh1D3Ae5FtzgfPQAIysEPwbLs7oPVlOz2KEUb86AOE1RYOXEGnb+uGYwmMAcaGRnHpnlJ7K8PVzhuzIP2sZWzkwAEEnrXO/Gln35FKFpajdleZGkhzbVL0We779Wbu4CiRlz0K0nYI8vzD1bYyxoBrLpgGfYmk+hD0YT5PllAJpOWKWmgFa5N/71rTZOREliYtdITiWlqU7sk6b6TaWevxqlehuwRddi0Nii/2rjdLzimw/sl4yUGoHjIDUZQrxA==; s=purelymail1; d=purelymail.com; v=1; bh=F1A4GphcTDFC+Yf9XniYO1rBerOKtDJdz7eN13gPdnY=; h=Feedback-ID:Received:Received:From:To:Subject:Date; Feedback-ID: 20115:3760:null:purelymail X-Pm-Original-To: 61942 <at> debbugs.gnu.org Received: by smtp.purelymail.com (Purelymail SMTP) with ESMTPSA id -758906436; (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Fri, 14 Mar 2025 03:49:00 +0000 (UTC) Received: by melete.silentflame.com (Postfix, from userid 1000) id 303FB7ED338; Fri, 14 Mar 2025 11:48:58 +0800 (CST) From: Sean Whitton <spwhitton@HIDDEN> To: Dmitry Gutov <dmitry@HIDDEN>, Tom Tromey <tom@HIDDEN> Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer In-Reply-To: <1a4691fa-bc62-4671-a4b1-459787980427@HIDDEN> References: <87y1od8zzs.fsf@HIDDEN> <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> <871pv3erfm.fsf@HIDDEN> <1a4691fa-bc62-4671-a4b1-459787980427@HIDDEN> Date: Fri, 14 Mar 2025 11:48:58 +0800 Message-ID: <877c4s2rx1.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 61942 Cc: 61942 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello, On Fri 14 Mar 2025 at 02:24am +02, Dmitry Gutov wrote: > On 11/03/2025 13:29, Sean Whitton wrote: >> Hello Dmitry, Tom, >> Do we have a reproducer for this? Otherwise, I'd like to suggest >> closing the report for now. > > The reproducer for the scenario I have in mind is opening a diff, for the > first time in a session, that references one of the larger .c files. > > For example, from the current Emacs master, launch 'C-x v L' (root log), and > from there move to > > * ab5bfcebddf..: Po Lu 2025-03-10 Fix bug#76805 > > and press 'd'. The first time I do it, in a session, takes about 600ms. > > Quitting or killing the diff buffer and repeating the action makes it instant > because the file buffer stays in diff--cached-revision-buffers, for some time. Thank you both for your replies. Dmitry, regarding your reproducer, on my laptop (bought late 2020) I can't discern a difference before or after the caching. Tom, it would be great if you could try Dmitry's suggestion and see if it makes a difference. -- Sean Whitton
bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
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Thu, 13 Mar 2025 20:34:17 -0400 (EDT) Message-ID: <3551d4bc-d97c-4b55-a69c-8e152e7be765@HIDDEN> Date: Fri, 14 Mar 2025 02:34:15 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer To: Tom Tromey <tom@HIDDEN>, Sean Whitton <spwhitton@HIDDEN> References: <87y1od8zzs.fsf@HIDDEN> <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> <871pv3erfm.fsf@HIDDEN> <871pv0wui1.fsf@HIDDEN> Content-Language: en-US From: Dmitry Gutov <dmitry@HIDDEN> In-Reply-To: <871pv0wui1.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 61942 Cc: 61942 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 13/03/2025 22:22, Tom Tromey wrote: > All it really seems to take is paging through a diff with some very > large hunks. If the repro requires really large hunks, it might be due to the "refine" feature, which can be relatively costly. When you see the problem again, maybe try (setq diff-refine nil).
bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
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Thu, 13 Mar 2025 20:24:36 -0400 (EDT) Message-ID: <1a4691fa-bc62-4671-a4b1-459787980427@HIDDEN> Date: Fri, 14 Mar 2025 02:24:34 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer To: Sean Whitton <spwhitton@HIDDEN>, Tom Tromey <tom@HIDDEN> References: <87y1od8zzs.fsf@HIDDEN> <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> <871pv3erfm.fsf@HIDDEN> Content-Language: en-US From: Dmitry Gutov <dmitry@HIDDEN> In-Reply-To: <871pv3erfm.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 61942 Cc: 61942 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 11/03/2025 13:29, Sean Whitton wrote: > Hello Dmitry, Tom, > > Do we have a reproducer for this? Otherwise, I'd like to suggest > closing the report for now. The reproducer for the scenario I have in mind is opening a diff, for the first time in a session, that references one of the larger .c files. For example, from the current Emacs master, launch 'C-x v L' (root log), and from there move to * ab5bfcebddf..: Po Lu 2025-03-10 Fix bug#76805 and press 'd'. The first time I do it, in a session, takes about 600ms. Quitting or killing the diff buffer and repeating the action makes it instant because the file buffer stays in diff--cached-revision-buffers, for some time.
bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
Full text available.Received: (at 61942) by debbugs.gnu.org; 13 Mar 2025 20:22:59 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Mar 13 16:22:59 2025 Received: from localhost ([127.0.0.1]:58342 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tsp51-0002iE-6a for submit <at> debbugs.gnu.org; Thu, 13 Mar 2025 16:22:59 -0400 Received: from omta036.useast.a.cloudfilter.net ([44.202.169.35]:53141) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <tom@HIDDEN>) id 1tsp4y-0002hf-7b for 61942 <at> debbugs.gnu.org; Thu, 13 Mar 2025 16:22:58 -0400 Received: from eig-obgw-5005a.ext.cloudfilter.net ([10.0.29.234]) by cmsmtp with ESMTPS id soBGt77k0zZPasp4stdYTP; Thu, 13 Mar 2025 20:22:50 +0000 Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with ESMTPS id sp4rtC0DrhQfUsp4rtDZEm; Thu, 13 Mar 2025 20:22:49 +0000 X-Authority-Analysis: v=2.4 cv=Negt1HD4 c=1 sm=1 tr=0 ts=67d33e99 a=ApxJNpeYhEAb1aAlGBBbmA==:117 a=ApxJNpeYhEAb1aAlGBBbmA==:17 a=Vs1iUdzkB0EA:10 a=ItBw4LHWJt0A:10 a=0hBCkxuxyeGWuN3TB_oA:9 a=6Ogn3jAGHLSNbaov7Orx:22 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To :Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Sim/mwMOlIr/N9cdff5VDrymLir/ml/lcc41BSQArDE=; b=Zes/FjRPK7w4mKknriQl9X/OrX Op0aC0SE/As/OzkZnH1HDvJvLzOtjbfNeLjIVv/8jJ9XwXmYU8EB7Byd+uDepAJ5KPa0syFlh/Iua fExv6xpPJybnPhe8fpkzDk/h4; Received: from 97-122-96-32.hlrn.qwest.net ([97.122.96.32]:45186 helo=prentzel) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.1) (envelope-from <tom@HIDDEN>) id 1tsp4q-00000000Guu-1sAq; Thu, 13 Mar 2025 14:22:48 -0600 From: Tom Tromey <tom@HIDDEN> To: Sean Whitton <spwhitton@HIDDEN> Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer In-Reply-To: <871pv3erfm.fsf@HIDDEN> (Sean Whitton's message of "Tue, 11 Mar 2025 19:29:33 +0800") References: <87y1od8zzs.fsf@HIDDEN> <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> <871pv3erfm.fsf@HIDDEN> X-Attribution: Tom Date: Thu, 13 Mar 2025 14:22:46 -0600 Message-ID: <871pv0wui1.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - debbugs.gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.96.32 X-Source-L: No X-Exim-ID: 1tsp4q-00000000Guu-1sAq X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-96-32.hlrn.qwest.net (prentzel) [97.122.96.32]:45186 X-Source-Auth: tom+tromey.com X-Email-Count: 3 X-Org: HG=bhshared;ORG=bluehost; X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfFroWR59bwzfoRXELIzH67/CnZVzecuH0zHQGDVanTUp4r7W2hxPjfbQQe5SmERlvqePMusIhRH1lIB8PjlGHoPMrXL3SNNG2UwqSoEWdleJNN0zMFR6 d/DdGeOi/6RZKpx3kF/pirqMv9tfQIScPmvRKWNOmlYSw3GhTT/fZAJtoTd37Vr4S5f3vxlXC6Jy7+kcyVaw8/UR+t2Ney6BTyk= X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 61942 Cc: Dmitry Gutov <dmitry@HIDDEN>, Tom Tromey <tom@HIDDEN>, 61942 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) > Do we have a reproducer for this? Otherwise, I'd like to suggest > closing the report for now. I encounter this quite a bit -- several times a week. All it really seems to take is paging through a diff with some very large hunks. I tried finding a reproducer on one of my current branches but couldn't. Anyway, closing this is premature since there is still a bug here. Tom
bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
Full text available.Sean Whitton <spwhitton@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 61942) by debbugs.gnu.org; 11 Mar 2025 11:30:01 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Mar 11 07:30:01 2025 Received: from localhost ([127.0.0.1]:41918 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1trxo4-0001Cm-Jn for submit <at> debbugs.gnu.org; Tue, 11 Mar 2025 07:30:01 -0400 Received: from sendmail.purelymail.com ([34.202.193.197]:38096) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <spwhitton@HIDDEN>) id 1trxnr-0001CH-JL for 61942 <at> debbugs.gnu.org; Tue, 11 Mar 2025 07:29:47 -0400 DKIM-Signature: a=rsa-sha256; b=zgjHt6TqUZ+lvCeMt2qGsqAE0MsGiu1+G0oxi22kJ6W0K1/oui9zxdFvC1usBBTIwBc2OsEGpnORd38ibirDINM1FwzTskwq86s26eKtD15E6w1c8OeBGMxWpYvxJJGoEDkinob8xRim//rOL2D0B3f5stnScIpfWBiFsTKtYVS8IqdBOlJUz5OCVaHRF9OQ6aS3s0JsP/zhitSny/EwNxkGuLu5i+y3iwWJpGwsI5utQRhaGNeyo+0dF6XqshNjFunYfxN8OHnZZrm5WZJ5OFLesTgwBvTPA/8xBpQwQsSadI95eJXt3om8gT4dV7ePJ4849RZTwZ1QRV54Ozv+kg==; s=purelymail1; d=spwhitton.name; v=1; bh=XPuyiXj9LptZi7habh4Hvveexcll5BNNc09aB8mC+x8=; h=Received:Received:From:To:Subject:Date; DKIM-Signature: a=rsa-sha256; b=dCAu+TqDKJZFUx3WPcVVlXayzTcst/I55CTnsrtAXiHC3RvWexzthOQ2BWRqWyDre4G+JSFYEOdnL1EU2z2kUUKTbCqDmoFaD3RXp3GCU2EnOw7Rnsbho5P9WOxonbscxtABSlNnJ8ADJi+enmWn96retYg+it8OXjlE42tTCvnlSlYTjhv61CyGQBVCQtPkwmQHYxsP7FyiDASKJcJhFz1wC7q9wORBB/4U9ZWdADdP75HwSl9z+dE4xd9aInZm277dj29Qnj1T8XOt7NYAs7zdiBTCpDTEvw2u2lp4HMawBC+uWVun5Of0GCtgBfNPzoVfvpm4yabiBf/AaNzuag==; s=purelymail1; d=purelymail.com; v=1; bh=XPuyiXj9LptZi7habh4Hvveexcll5BNNc09aB8mC+x8=; h=Feedback-ID:Received:Received:From:To:Subject:Date; Feedback-ID: 20115:3760:null:purelymail X-Pm-Original-To: 61942 <at> debbugs.gnu.org Received: by smtp.purelymail.com (Purelymail SMTP) with ESMTPSA id -697920322; (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Tue, 11 Mar 2025 11:29:36 +0000 (UTC) Received: by melete.silentflame.com (Postfix, from userid 1000) id C5DC87ED8EF; Tue, 11 Mar 2025 19:29:33 +0800 (CST) From: Sean Whitton <spwhitton@HIDDEN> To: Dmitry Gutov <dmitry@HIDDEN>, Tom Tromey <tom@HIDDEN> Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer In-Reply-To: <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> References: <87y1od8zzs.fsf@HIDDEN> <ff403f86-6f08-4281-975a-6163c0e9836c@HIDDEN> Date: Tue, 11 Mar 2025 19:29:33 +0800 Message-ID: <871pv3erfm.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 61942 Cc: 61942 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello Dmitry, Tom, Do we have a reproducer for this? Otherwise, I'd like to suggest closing the report for now. -- Sean Whitton
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Subject: Re: bug#61942: 28.2; uninterruptible hang in vc-diff buffer
To: Tom Tromey <tom@HIDDEN>, 61942 <at> debbugs.gnu.org,
Juri Linkov <juri@HIDDEN>
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Hi!
Late reply here.
On 03/03/2023 20:13, Tom Tromey wrote:
> From*vc-outgoing*, I used '=' to see a diff.
>
> The diff in question is pretty large.
>
> Emacs showed this in the echo area:
>
> Finding changes in ....
>
> This was not interruptible -- I tried C-g, C-], and 'kill -USR1'
>
> I don't know exactly what this is doing, but whatever it is should be
> interruptible.
I've been doing some performance debugging for vc-diff, and the same
thing has happened once when c-ts-mode was associated with *.c files.
That time I also turned off the cache for diff's revision syntax
highlighting and repeated a 'vc-diff' for one revision several times.
Profiling this scenario gets me to
7940 85% - diff--get-revision-properties
7940 85% - let*
5637 61% - if
5637 61% - condition-case
5637 61% - vc-find-revision-no-save
5622 60% - decode-coding-inserted-region
3 0% - set-auto-coding
3 0% - find-auto-coding
3 0% + set-auto-mode-1
12 0% + set-auto-mode
3 0% + vc-call-backend
and if we're talking about tree-sitter based modes, it might be due to
memory usage (or not).
Anyway, if you're seeing this regularly
(setq diff-font-lock-syntax 'hunk-only)
should help as a workaround.
bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
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The diff in question is pretty large. Emacs showed this in the echo area: Finding changes in .... This was not interruptible -- I tried C-g, C-], and 'kill -USR1' I don't know exactly what this is doing, but whatever it is should be interruptible. Tom In GNU Emacs 28.2 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.35, cairo version 1.17.6) of 2022-12-31 built on buildvm-x86-18.iad2.fedoraproject.org Windowing system distributor 'The X.Org Foundation', version 11.0.12201007 System Description: Fedora Linux 36 (Workstation Edition) Configured using: 'configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png --with-rsvg --with-tiff --with-xpm --with-x-toolkit=gtk3 --with-gpm=no --with-xwidgets --with-modules --with-harfbuzz --with-cairo --with-json --with-native-compilation build_alias=x86_64-redhat-linux-gnu host_alias=x86_64-redhat-linux-gnu CC=gcc 'CFLAGS=-DMAIL_USE_LOCKF -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' LDFLAGS=-Wl,-z,relro PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM XWIDGETS GTK3 ZLIB Important settings: value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: Git-Log-View Minor modes in effect: vc-parent-buffer: *vc-dir*<gcc> bug-reference-mode: t erc-list-mode: t erc-menu-mode: t erc-autojoin-mode: t erc-ring-mode: t erc-pcomplete-mode: t erc-netsplit-mode: t erc-spelling-mode: t erc-truncate-mode: t shell-dirtrack-mode: t which-function-mode: t erc-track-mode: t erc-track-minor-mode: t erc-notify-mode: t erc-notifications-mode: t erc-match-mode: t erc-services-mode: t erc-networks-mode: t erc-hl-nicks-mode: t erc-button-mode: t erc-fill-mode: t erc-stamp-mode: t erc-irccontrols-mode: t erc-noncommands-mode: t erc-move-to-prompt-mode: t erc-readonly-mode: t savehist-mode: t tooltip-mode: t global-eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t buffer-read-only: t column-number-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow emacsbug f90 descr-text reposition asm-mode gnus-draft rust-mode arc-mode archive-mode js edmacro pcmpl-unix pcmpl-gnu conf-mode compare-w gnus-icalendar org-capture org-refile icalendar webjump sh-script smie executable rng-xsd xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode nxml-outln nxml-rap sgml-mode facemenu nxml-util nxml-enc xmltok term ehelp nroff-mode cmake-mode rst autoconf autoconf-mode texinfo texinfo-loaddefs pulse ada-light-mode eglot array jsonrpc ert flymake-proc flymake vc-annotate cus-edit cus-start url-http url-gw url-auth python tramp-sh pcase autoload lisp-mnt gud mule-util debug backtrace kmacro two-column dwarf-mode tabify man tcl make-mode cl-print shortdoc goto-addr log-edit yaml-mode log-view pcvs-util find-dired copyright ffap grep find-file ggtags etags fileloop xref project compile bug-reference cc-mode cc-fonts cc-guess cc-menus cc-cmds supercite regi 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fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads xwidget-internal dbusbind inotify dynamic-setting system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit x multi-tty make-network-process native-compile emacs) Memory information: ((conses 16 5826176 675973) (symbols 48 118086 157) (strings 32 663988 63985) (string-bytes 1 24860746) (vectors 16 247905) (vector-slots 8 5951617 919156) (floats 8 621 871) (intervals 56 1006709 5268) (buffers 992 1662))
Tom Tromey <tom@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#61942; Package emacs.
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