From owner-freebsd-bugs@freebsd.org Mon Feb 11 14:58:13 2019 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 67ABB14D95EF for ; Mon, 11 Feb 2019 14:58:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 004C3711B9 for ; Mon, 11 Feb 2019 14:58:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id B143F14D95EE; Mon, 11 Feb 2019 14:58:12 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8D19514D95ED for ; Mon, 11 Feb 2019 14:58:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::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.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 28228711B1 for ; Mon, 11 Feb 2019 14:58:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 615D41FD38 for ; Mon, 11 Feb 2019 14:58:11 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x1BEwBMX092074 for ; Mon, 11 Feb 2019 14:58:11 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x1BEwB7v092073 for bugs@FreeBSD.org; Mon, 11 Feb 2019 14:58:11 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 235640] panic: mutex pipe mutex not owned at ../../../kern/sys_pipe.c:1748 Date: Mon, 11 Feb 2019 14:58:11 +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: CURRENT X-Bugzilla-Keywords: panic, stress2 X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: pho@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: 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: Mon, 11 Feb 2019 14:58:13 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235640 --- Comment #2 from Peter Holm --- (In reply to Mark Johnston from comment #1) Test scenario: misc/kevent13.sh I just updated the test scenario to include VM pressure. root@t2:~pho/stress2/misc # uname -a FreeBSD t2.osted.lan 13.0-CURRENT FreeBSD 13.0-CURRENT #2 r343705M: Sun Feb= 10 19:11:22 CET 2019 pho@t2.osted.lan:/usr/src/sys/amd64/compile/PHO amd64 root@t2:~pho/stress2/misc # ./kevent13.sh=20 panic: mutex pipe mutex not owned at ../../../kern/sys_pipe.c:1748 cpuid =3D 14 time =3D 1549896871 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00d70b3= 3d0 vpanic() at vpanic+0x1b4/frame 0xfffffe00d70b3430 panic() at panic+0x43/frame 0xfffffe00d70b3490 __mtx_assert() at __mtx_assert+0xb4/frame 0xfffffe00d70b34a0 filt_pipewrite() at filt_pipewrite+0x30/frame 0xfffffe00d70b34c0 kqueue_register() at kqueue_register+0xa03/frame 0xfffffe00d70b3550 kqueue_kevent() at kqueue_kevent+0xa2/frame 0xfffffe00d70b3820 kern_kevent_fp() at kern_kevent_fp+0x97/frame 0xfffffe00d70b3870 kern_kevent() at kern_kevent+0x9f/frame 0xfffffe00d70b38d0 kern_kevent_generic() at kern_kevent_generic+0x70/frame 0xfffffe00d70b3930 sys_kevent() at sys_kevent+0x61/frame 0xfffffe00d70b3990 amd64_syscall() at amd64_syscall+0x291/frame 0xfffffe00d70b3ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00d70b3ab0 --- syscall (560, FreeBSD ELF64, sys_kevent), rip =3D 0x80043055a, rsp =3D 0x7fffdfffde88, rbp =3D 0x7fffdfffded0 --- KDB: enter: panic [ thread pid 1369 tid 101232 ] Stopped at kdb_enter+0x3b: movq $0,kdb_why db> --=20 You are receiving this mail because: You are the assignee for the bug.=