From owner-svn-src-all@freebsd.org Mon Nov 16 03:12:22 2020 Return-Path: Delivered-To: svn-src-all@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 558872D0D7D; Mon, 16 Nov 2020 03:12:22 +0000 (UTC) (envelope-from mjg@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 4CZDdf1XV8z4WXG; Mon, 16 Nov 2020 03:12:22 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 282C526E45; Mon, 16 Nov 2020 03:12:22 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 0AG3CMiV073336; Mon, 16 Nov 2020 03:12:22 GMT (envelope-from mjg@FreeBSD.org) Received: (from mjg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 0AG3CLcm073334; Mon, 16 Nov 2020 03:12:21 GMT (envelope-from mjg@FreeBSD.org) Message-Id: <202011160312.0AG3CLcm073334@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mjg set sender to mjg@FreeBSD.org using -f From: Mateusz Guzik Date: Mon, 16 Nov 2020 03:12:21 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r367714 - head/sys/kern X-SVN-Group: head X-SVN-Commit-Author: mjg X-SVN-Commit-Paths: head/sys/kern X-SVN-Commit-Revision: 367714 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Nov 2020 03:12:22 -0000 Author: mjg Date: Mon Nov 16 03:12:21 2020 New Revision: 367714 URL: https://svnweb.freebsd.org/changeset/base/367714 Log: select: call seltdfini on process and thread exit Since thread_zone is marked NOFREE the thread_fini callback is never executed, meaning memory allocated by seltdinit is never released. Adding the call to thread_dtor is not sufficient as exiting processes cache the main thread. Modified: head/sys/kern/kern_exit.c head/sys/kern/kern_thread.c Modified: head/sys/kern/kern_exit.c ============================================================================== --- head/sys/kern/kern_exit.c Mon Nov 16 03:09:18 2020 (r367713) +++ head/sys/kern/kern_exit.c Mon Nov 16 03:12:21 2020 (r367714) @@ -355,6 +355,7 @@ exit1(struct thread *td, int rval, int signo) PROC_UNLOCK(p); umtx_thread_exit(td); + seltdfini(td); /* * Reset any sigio structures pointing to us as a result of Modified: head/sys/kern/kern_thread.c ============================================================================== --- head/sys/kern/kern_thread.c Mon Nov 16 03:09:18 2020 (r367713) +++ head/sys/kern/kern_thread.c Mon Nov 16 03:12:21 2020 (r367714) @@ -329,6 +329,7 @@ thread_ctor(void *mem, int size, void *arg, int flags) audit_thread_alloc(td); #endif umtx_thread_alloc(td); + MPASS(td->td_sel == NULL); return (0); } @@ -369,6 +370,7 @@ thread_dtor(void *mem, int size, void *arg) osd_thread_exit(td); td_softdep_cleanup(td); MPASS(td->td_su == NULL); + seltdfini(td); } /* @@ -405,7 +407,7 @@ thread_fini(void *mem, int size) turnstile_free(td->td_turnstile); sleepq_free(td->td_sleepqueue); umtx_thread_fini(td); - seltdfini(td); + MPASS(td->td_sel == NULL); } /*