From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Michael Albinus Newsgroups: gmane.emacs.bugs Subject: bug#33194: 26.1; Auto-revert mode causes emacs to use 100% cpu whenever a file is being written to in the home directory Date: Sun, 04 Nov 2018 12:58:51 +0100 Message-ID: <878t29gikk.fsf@gmx.de> References: <878t2gbisr.fsf@gmx.de> <83pnvskl8b.fsf@gnu.org> <83lg6fjq6f.fsf@gnu.org> <87d0rmjumt.fsf@gmx.de> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1541332688 20968 195.159.176.226 (4 Nov 2018 11:58:08 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 4 Nov 2018 11:58:08 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 33194@debbugs.gnu.org To: Justin Van Winkle Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Nov 04 12:58:03 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gJH2Y-0005JM-7h for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 04 Nov 2018 12:58:52 +0100 Original-Received: from detlef.gmx.de ([213.220.146.129]) by mail.gmx.com (mrgmx001 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MOf5S-1gDCVW2UJK-0066cy; Sun, 04 Nov 2018 12:58:52 +0100 In-Reply-To: <87d0rmjumt.fsf@gmx.de> (Michael Albinus's message of "Sat, 03 Nov 2018 11:57:46 +0100") X-Provags-ID: V03:K1:mZKeZze9+e+hG9aTBD4xqLU69Onp9L0w7AcBYMyU7p2Z/v7Ie5o RaUwosJHDRnDvDoNtHeLmhT8vjlGPNbBN/81K/142ltNOPq44yEqFykurS/9L3QPFWBAHkx m/mjIJA7lMW9HJ9OijFKfvBZ05td4mxSr9Jv7IpGwxpwkPMqrY0f0eHeYjwveHHmsyrI7kk i/z7Riv9xzUoYMM1GrrDA== X-UI-Out-Filterresults: notjunk:1;V01:K0:47frBnYMeZg=:Tm036zq/Kj/EOg/SopPc+Z uJ1rEPfIar8hW3WOOpzmRK0JPsr9bsfV85jrq66+93ZCYYjey5oTAUM+6rrzP3ewpsN9+TLIP p1nccarHmLD/bh2JRTmPEg08AuWvxlLJ3Pik/NWa4orsUP/ipPzp3qUZwdNTnpx+LqA7QLD3P 3zBE0I0SDlNkPHXkFjZkqzv4IWO6WCeWOtH5IHkwdRAlz2Ia7wxMurLErvXQzcngxXqGuLVVt gYUB8dbqMdKf+9oiT6VLvd6jTTRQPiMyjVdGfKA/Bu2ppSWe/dHI+zt9hqhaivCQTc0gVlzhG L96wZTx0y0mSx1OubL5i9dvmsKPzsHwqGlHDC1lgNuI2YoZkiSWCmDKVC3S2jpR37OZLpm9QB zdzLlnBmupvOsLKnhWrCLzpNgMUy563bqtJ+cGNG5dJxYCPLTCWCnLRt3a6fNPpopLGtFSBQo nY0AkXzV2+bj+bHxZQ/rnFX8FdH90RUZBOJXg51HdojrPNsx/ppYenlWrfZhnkk/yj1/mGyQC pFQZ3zfjKtAGmcqRs+y4NE+CDM6lj0oZTAurGhJiFE5ijILT8JHA8rjer+OpN4CHHWbTouHG8 PBj7Kp3sMwjDUTZfhrjqZSO8PkE0VJ8l2j9HWTzkzyQq4UhmEeroiSLNzxJLCqq+vksExHO2I Hlxau6bKi3m3uVPUeQ5/hnZ2IPAoPm5x/7Tyu/HpIW+Ia/6Lgr+kKr7J6KpEPtIC72yTfWExg we0V+6UeUWnSn8DFXVAB4s7xmWaaiRchO3Qd8ewPkzzVXAUdrH6FR4e6w0Qa25q8PHfvj6ic 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" Xref: news.gmane.org gmane.emacs.bugs:152008 Archived-At: Michael Albinus writes: Hi Justin, >> I mean it is certainly a bug to use 100% of a cpu just because a file >> that is in the same directory to a file you are editing is being >> written to, but it may not be unintentional behavior. > > I could reproduce the problem. I have a running Emacs for some days, and > I've enabled `global-auto-revert-mode'. Starting scp copy of a large > file outside Emacs, brought Emacs up to 100% cpu usage. I have pushed a fix for this to Emacs' master branch in git. The case of several buffers using the same file notification descriptor was prepared already in the code; due to a silly bug it didn't work. > The variable `file-notify-descriptors' contains ... > > As we can see, many identical entries #s(file-notify--watch > /home/albinus nil auto-revert-notify-handler). > Every incoming event for "/home/albinus" triggers the many calls of > `auto-revert-notify-handler', although one entry would be sufficient. I > will check, where all these entries come from. This doesn't happen any longer for me. And Emacs doesn't eat all cpu time. Do you have a chance to build Emacs 27.0.50, for verification? Best regards, Michael.