From owner-freebsd-bugs@freebsd.org Fri Sep 18 01:33:47 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 33A8A3F423B for ; Fri, 18 Sep 2020 01:33:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4BsxF70fhvz3ftQ for ; Fri, 18 Sep 2020 01:33:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 14B003F423A; Fri, 18 Sep 2020 01:33:47 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 134C03F40EE for ; Fri, 18 Sep 2020 01:33:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BsxF66YxKz3g4c for ; Fri, 18 Sep 2020 01:33:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id AD6DF1336B for ; Fri, 18 Sep 2020 01:33:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 08I1XkY9021318 for ; Fri, 18 Sep 2020 01:33:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 08I1Xkcw021317 for bugs@FreeBSD.org; Fri, 18 Sep 2020 01:33:46 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 249416] Each call to newlocale(3) with a non-null base argument results in additional memory usage Date: Fri, 18 Sep 2020 01:33:46 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: leres@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.mimetype attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Sep 2020 01:33:47 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D249416 Bug ID: 249416 Summary: Each call to newlocale(3) with a non-null base argument results in additional memory usage Product: Base System Version: 12.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: leres@freebsd.org Attachment #218038 text/plain mime type: Created attachment 218038 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D218038&action= =3Dedit newlocale() test program There appears to be a memory usage issue with newlocale(3) when called with= a base argument. This recently started showing symptoms in devel/json-c progr= ams using version 0.14 and higher which started using newlocale() due to a chan= ge in the cmake configuration. Here is the devel/json-c PR: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D249412 Here is the upstream ticket I created: https://github.com/json-c/json-c/issues/668 Eric Hawicz responded, suggesting that FreeBSD's implementation of newlocal= e() might be causing the issue. His helpful test program confirms this. Attache= d to this PR is a modified version that uses sysctl() to automatically track and report changes to rss and vsz. Eric points out that FreeBSD and linux man pages describe different behavio= r; FreeBSD: =20=20=20 https://www.freebsd.org/cgi/man.cgi?query=3Dnewlocale&sektion=3D3&manpath= =3Dfreebsd-release-ports "Creates a new locale, inheriting some properties from an existing loca= le." Note that there do not appear to be uses of newlocale() with a non-null base argument in the current source tree; linux: https://man7.org/linux/man-pages/man3/newlocale.3.html "The newlocale() function creates a new locale object, or modifies an existing object..." And that posix says: https://pubs.opengroup.org/onlinepubs/9699919799/functions/newlocale.ht= ml "The newlocale() function shall create a new locale object or modify an existing one." I did some testing with versions of lib/libc/locale going back to 2012 and = all had this issue. --=20 You are receiving this mail because: You are the assignee for the bug.=