From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#54698: non-recursive GC marking [PATCH] Date: Wed, 06 Apr 2022 15:23:20 +0300 Message-ID: <83k0c2csef.fsf@gnu.org> References: <5A577100-75CE-4C9E-A7DA-02B917662AF5@acm.org> <8735itglid.fsf@gnus.org> <8527E407-8190-4574-B8D5-BE68220AE663@acm.org> <871qyc5o0y.fsf@yahoo.com> <5BBEDBDA-4C85-4237-9EF7-5635A4950365@acm.org> <83fsmreox8.fsf@gnu.org> <83a6czekro.fsf@gnu.org> <83r16acwar.fsf@gnu.org> <87tub6zabp.fsf@yahoo.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="32406"; mail-complaints-to="usenet@ciao.gmane.io" Cc: mattiase@acm.org, larsi@gnus.org, 54698@debbugs.gnu.org, p.stephani2@gmail.com, rms@gnu.org To: Po Lu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Apr 06 14:24:19 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 1nc4hu-0008En-Sa for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 06 Apr 2022 14:24:19 +0200 Original-Received: from localhost ([::1]:46860 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nc4ht-0007lN-ED for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 06 Apr 2022 08:24:17 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54936) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nc4he-0007aP-Qk for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2022 08:24:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:35094) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nc4he-0003Ok-EG for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2022 08:24:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nc4he-0008GX-Am for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2022 08:24:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 06 Apr 2022 12:24:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 54698 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 54698-submit@debbugs.gnu.org id=B54698.164924780231718 (code B ref 54698); Wed, 06 Apr 2022 12:24:02 +0000 Original-Received: (at 54698) by debbugs.gnu.org; 6 Apr 2022 12:23:22 +0000 Original-Received: from localhost ([127.0.0.1]:57223 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nc4h0-0008FW-0O for submit@debbugs.gnu.org; Wed, 06 Apr 2022 08:23:22 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:33202) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nc4gy-0008FJ-Dp for 54698@debbugs.gnu.org; Wed, 06 Apr 2022 08:23:20 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:55234) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nc4gs-0003If-WA; Wed, 06 Apr 2022 08:23:15 -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=dvRhhoCsN8Xkc/nfovOwg+/gYlCwWSYLASB0YB8GIV8=; b=IwWCIDBiTGMK INslfDl0lg9Jmw1RBm2BYfc21uKB0ZdP46DdSU4tOC6XLpCTWsyy6joPWDDxrdPA8PytGDqUvjkPP MpZNfgvoO+r1lRl9kstQviWFFFmlrwHJh07t85OEjMcW0p7z7S9KBNCVYdoOB7pdAehAVR0srYmFw /opP3Nnvr5SBj7Lo47CFacvGR+NnpnGek0bH7rLnux4/uV1n6Ddahp4MPSis+VX2etcswjCXmF51i A09N//PZ3WbKpCW22PhUogePEnj18xu8tCSGDiThLrRVqBt+E2fX7jBnfTqSrD5JcauDMvCx1TZtB 0TpdhDHRZxxCdslCE+SvAw==; Original-Received: from [87.69.77.57] (port=2054 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nc4gq-000435-NS; Wed, 06 Apr 2022 08:23:13 -0400 In-Reply-To: <87tub6zabp.fsf@yahoo.com> (message from Po Lu on Wed, 06 Apr 2022 20:05:14 +0800) 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:229494 Archived-At: > From: Po Lu > Cc: rms@gnu.org, p.stephani2@gmail.com, mattiase@acm.org, larsi@gnus.org, > 54698@debbugs.gnu.org > Date: Wed, 06 Apr 2022 20:05:14 +0800 > > Overcommit can be disabled on GNU/Linux (the relevant knob is > vm.overcommit_memory), which will malloc return an error when there is > no more memory left on the system, thereby triggering memory_full. Then I think we should advise users to do that. > malloc can also fail when it runs out of virtual memory, especially on > 32-bit systems. Why only 32-bit? If overcommit is disabled, isn't the amount of VM determined by the sum of physical memory + swap space? If so, you could run out of VM on 64-bit systems as well, no?