From owner-freebsd-emulation@FreeBSD.ORG Thu Aug 20 20:29:26 2009 Return-Path: Delivered-To: emulation@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 512AF106568B for ; Thu, 20 Aug 2009 20:29:26 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (skuns.zoral.com.ua [91.193.166.194]) by mx1.freebsd.org (Postfix) with ESMTP id BE1298FC3F for ; Thu, 20 Aug 2009 20:29:25 +0000 (UTC) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id n7KK11Wr067628 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 20 Aug 2009 23:01:01 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.3/8.14.3) with ESMTP id n7KK11va084122; Thu, 20 Aug 2009 23:01:01 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.3/8.14.3/Submit) id n7KK117l084121; Thu, 20 Aug 2009 23:01:01 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 20 Aug 2009 23:01:01 +0300 From: Kostik Belousov To: Ulrich Sp??rlein , emulation@freebsd.org Message-ID: <20090820200101.GW9623@deviant.kiev.zoral.com.ua> References: <20090820194932.GA66475@acme.spoerlein.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="p51eBkY87UC7w4vh" Content-Disposition: inline In-Reply-To: <20090820194932.GA66475@acme.spoerlein.net> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: Subject: Re: acquiring duplicate lock of same type: "ftlk" X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Aug 2009 20:29:26 -0000 --p51eBkY87UC7w4vh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 20, 2009 at 09:49:32PM +0200, Ulrich Sp??rlein wrote: > Hi, I'm on RELENG_8/amd64 now and while using flash inside FF3 I > observed the following >=20 > acquiring duplicate lock of same type: "ftlk" > 1st ftlk @ /data/freebsd-head/sys/modules/linux/../../compat/linux/linux= _futex.c:177 > 2nd ftlk @ /data/freebsd-head/sys/modules/linux/../../compat/linux/linux= _futex.c:203 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > _witness_debugger() at _witness_debugger+0x2e > witness_checkorder() at witness_checkorder+0x8ef > _sx_xlock() at _sx_xlock+0x55 > futex_get0() at futex_get0+0xfe > linux_sys_futex() at linux_sys_futex+0x96 > ia32_syscall() at ia32_syscall+0x19c > Xint0x80_syscall() at Xint0x80_syscall+0x95 > --- syscall (240, Linux ELF32, linux_sys_futex), rip =3D 0x287d89b3, rsp = =3D 0xffffaa8c, rbp =3D 0x4000001 --- >=20 > I'm running with linux-f8 (f10 gave me trouble last time I tried on CURRE= NT) and flash10. >=20 > Is this a known problem? Is someone working on this or shall I file a PR? >=20 > Regards, > Uli >=20 > PS: please keep me CC'ed. thx. This is a known and harmless issue. We need sx_xlock_flags(). --p51eBkY87UC7w4vh Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkqNq3wACgkQC3+MBN1Mb4gw0gCg2eLcCmB44sabC0ctvnctdybW 7dEAnR13qp2eR5V6uEt45cs6uJ/MXYdS =6959 -----END PGP SIGNATURE----- --p51eBkY87UC7w4vh--