From owner-freebsd-stable@FreeBSD.ORG Tue Jan 26 07:33:41 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B68401065676 for ; Tue, 26 Jan 2010 07:33:41 +0000 (UTC) (envelope-from peterjeremy@acm.org) Received: from mail34.syd.optusnet.com.au (mail34.syd.optusnet.com.au [211.29.133.218]) by mx1.freebsd.org (Postfix) with ESMTP id 474D88FC17 for ; Tue, 26 Jan 2010 07:33:40 +0000 (UTC) Received: from server.vk2pj.dyndns.org (c122-106-232-148.belrs3.nsw.optusnet.com.au [122.106.232.148]) by mail34.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id o0Q7Xb6G009229 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 26 Jan 2010 18:33:39 +1100 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.3/8.14.3) with ESMTP id o0Q7Xb20002025 for ; Tue, 26 Jan 2010 18:33:37 +1100 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.3/8.14.3/Submit) id o0Q7Xbee002024 for freebsd-stable@freebsd.org; Tue, 26 Jan 2010 18:33:37 +1100 (EST) (envelope-from peter) Date: Tue, 26 Jan 2010 18:33:37 +1100 From: Peter Jeremy To: freebsd-stable@freebsd.org Message-ID: <20100126073336.GA1955@server.vk2pj.dyndns.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Nq2Wo0NMKNjxTN9z" Content-Disposition: inline X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.20 (2009-06-14) Subject: uma_zalloc_arg complaining about non-sleepable locks X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jan 2010 07:33:41 -0000 --Nq2Wo0NMKNjxTN9z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I have just upgraded to 8-STABLE/amd64 from about 18 hours ago and am now getting regular (the following pair of messages about every minute) compaints as follows: kernel: uma_zalloc_arg: zone "mbuf" with the following non-sleepable locks = held: kernel: exclusive sleep mutex sp_lock (sp_lock) r =3D 0 (0xffffff000460bb00= ) locked @ /usr/src/sys/rpc/svc.c:1098 kernel: KDB: stack backtrace: kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kernel: _witness_debugger() at _witness_debugger+0x2c kernel: witness_warn() at witness_warn+0x2c2 kernel: uma_zalloc_arg() at uma_zalloc_arg+0x29d kernel: nfs_realign() at nfs_realign+0x5f kernel: fha_assign() at fha_assign+0x2d8 kernel: svc_run_internal() at svc_run_internal+0x1ee kernel: svc_thread_start() at svc_thread_start+0xb kernel: fork_exit() at fork_exit+0x112 kernel: fork_trampoline() at fork_trampoline+0xe kernel: --- trap 0xc, rip =3D 0x80069e04c, rsp =3D 0x7fffffffe6d8, rbp =3D = 0x5 --- kernel: uma_zalloc_arg: zone "mbuf" with the following non-sleepable locks = held: kernel: exclusive sleep mutex sp_lock (sp_lock) r =3D 0 (0xffffff000460bb00= ) locked @ /usr/src/sys/rpc/svc.c:1098 kernel: KDB: stack backtrace: kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kernel: _witness_debugger() at _witness_debugger+0x2c kernel: witness_warn() at witness_warn+0x2c2 kernel: uma_zalloc_arg() at uma_zalloc_arg+0x29d kernel: nfs_realign() at nfs_realign+0x5f kernel: fha_assign() at fha_assign+0x2d8 kernel: svc_run_internal() at svc_run_internal+0x1ee kernel: svc_thread_start() at svc_thread_start+0xb kernel: fork_exit() at fork_exit+0x112 kernel: fork_trampoline() at fork_trampoline+0xe kernel: --- trap 0xc, rip =3D 0x80069e04c, rsp =3D 0x7fffffffe6d8, rbp =3D = 0x5 --- It looks like NFS is missing some lock/unlock pairs. Has anyone else seen this? And does anyone have a fix? --=20 Peter Jeremy --Nq2Wo0NMKNjxTN9z Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAktemtAACgkQ/opHv/APuIc6pQCfegJtvPmH2gdGOzU1GyNPZLIu br0AoJt8Xl1fwKDdxL7bpISTKPdpmL9I =XAxq -----END PGP SIGNATURE----- --Nq2Wo0NMKNjxTN9z--