From owner-freebsd-bugs@freebsd.org Thu Dec 10 14:22:29 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 B28314AC0B8 for ; Thu, 10 Dec 2020 14:22:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4CsGMn4PrGz4W8l for ; Thu, 10 Dec 2020 14:22:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 974B34ABDEB; Thu, 10 Dec 2020 14:22:29 +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 971414AC118 for ; Thu, 10 Dec 2020 14:22:29 +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 4CsGMn3Tlfz4WJ8 for ; Thu, 10 Dec 2020 14:22:29 +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 6A8821A408 for ; Thu, 10 Dec 2020 14:22:29 +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 0BAEMT4C001555 for ; Thu, 10 Dec 2020 14:22:29 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 0BAEMTXl001554 for bugs@FreeBSD.org; Thu, 10 Dec 2020 14:22:29 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 251729] LOR between isofs and bufwait Date: Thu, 10 Dec 2020 14:22:29 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: gbe@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 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: 2.1.34 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Dec 2020 14:22:29 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251729 Bug ID: 251729 Summary: LOR between isofs and bufwait Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: gbe@FreeBSD.org The following LOR was reported while running kyua test on arm64. lock order reversal: 1st 0xffffa000d79999f8 isofs (isofs, lockmgr) @ /tank/nfs_public/tiny/src/sys/kern/vfs_syscalls.c :4165 2nd 0xffff0000409378e0 bufwait (bufwait, lockmgr) @ /tank/nfs_public/tiny/src/sys/kern/vfs_bio.c: 1674 lock order isofs -> bufwait attempted at: #0 0xffff000000570d90 at witness_checkorder+0xc54 #1 0xffff0000004d3318 at lockmgr_xlock_hard+0x6c #2 0xffff0000004d3fbc at __lockmgr_args+0x534 #3 0xffff0000005bad10 at getnewbuf+0x48c #4 0xffff0000005b7e34 at getblkx+0x2d0 #5 0xffff0000005b7974 at breadn_flags+0x54 #6 0xffff0000004833d4 at cd9660_blkatoff+0x58 #7 0xffff000000486e10 at cd9660_readdir+0x170 #8 0xffff00000089373c at VOP_READDIR_APV+0x44 #9 0xffff0000005f1a58 at kern_getdirentries+0x1fc #10 0xffff0000005f1c9c at sys_getdirentries+0x24 #11 0xffff0000008241f4 at do_el0_sync+0x7dc #12 0xffff000000803a24 at handle_el0_sync+0x90 --=20 You are receiving this mail because: You are the assignee for the bug.=