From owner-freebsd-bugs@freebsd.org Wed Sep 11 14:06:06 2019 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 110B2D533B for ; Wed, 11 Sep 2019 14:06:06 +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 46T3bK6mnVz40J6 for ; Wed, 11 Sep 2019 14:06:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id E69C5D533A; Wed, 11 Sep 2019 14:06:05 +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 E661CD5338 for ; Wed, 11 Sep 2019 14:06:05 +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) server-signature RSA-PSS (4096 bits) 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 46T3bK5nTFz40J5 for ; Wed, 11 Sep 2019 14:06:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 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 A5C287913 for ; Wed, 11 Sep 2019 14:06:05 +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 x8BE65Tu038569 for ; Wed, 11 Sep 2019 14:06:05 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x8BE65Hl038568 for bugs@FreeBSD.org; Wed, 11 Sep 2019 14:06:05 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 239803] Problem with concurrent transfer of file descriptors Date: Wed, 11 Sep 2019 14:06:05 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: stas.kelvich@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: 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: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Sep 2019 14:06:06 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239803 Stas Kelvich changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |stas.kelvich@gmail.com --- Comment #2 from Stas Kelvich --- I've applied patch from bug #227285 on r352207 and it solves the problem. However dmesg is full of such messages: ``` uma_zalloc_arg: zone "16" with the following non-sleepable locks held: shared rw unp_link_rwlock (unp_link_rwlock) r =3D 0 (0xffffffff81f673f0) lo= cked @ /usr/src/sys/kern/uipc_usrreq.c:2610 stack backtrace: #0 0xffffffff80c3f243 at witness_debugger+0x73 #1 0xffffffff80c40262 at witness_warn+0x442 #2 0xffffffff80f02afb at uma_zalloc_arg+0x3b #3 0xffffffff80bab2db at malloc+0x9b #4 0xffffffff80c7b23c at unp_gc+0x2dc #5 0xffffffff80c31cec at taskqueue_run_locked+0x10c #6 0xffffffff80c32c68 at taskqueue_thread_loop+0x88 #7 0xffffffff80b90ad4 at fork_exit+0x84 #8 0xffffffff8116c65e at fork_trampoline+0xe ``` --=20 You are receiving this mail because: You are the assignee for the bug.=