From owner-freebsd-emulation@FreeBSD.ORG Sat Sep 6 16:08:07 2008 Return-Path: Delivered-To: freebsd-emulation@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3C2F31065670; Sat, 6 Sep 2008 16:08:07 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.terabit.net.ua (mail.terabit.net.ua [195.137.202.147]) by mx1.freebsd.org (Postfix) with ESMTP id CFE708FC14; Sat, 6 Sep 2008 16:08:06 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from skuns.zoral.com.ua ([91.193.166.194] helo=mail.zoral.com.ua) by mail.terabit.net.ua with esmtp (Exim 4.63 (FreeBSD)) (envelope-from ) id 1KbzjB-000HnM-Jv; Sat, 06 Sep 2008 18:29:33 +0300 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 m86FTUEs005990 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 6 Sep 2008 18:29:30 +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 (8.14.2/8.14.2) with ESMTP id m86FTUHE020414; Sat, 6 Sep 2008 18:29:30 +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 m86FTUE8020412; Sat, 6 Sep 2008 18:29:30 +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: Sat, 6 Sep 2008 18:29:30 +0300 From: Kostik Belousov To: "Sean C. Farley" , freebsd-emulation@freebsd.org Message-ID: <20080906152929.GB2038@deviant.kiev.zoral.com.ua> References: <20080830113448.GA2152@dchagin.dialup.corbina.ru> <20080906104659.GA2113@dchagin.dialup.corbina.ru> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="FG2vzoPGYsbT0vfz" Content-Disposition: inline In-Reply-To: <20080906104659.GA2113@dchagin.dialup.corbina.ru> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: ClamAV version 0.93.3, clamav-milter version 0.93.3 on 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 X-Virus-Scanned: mail.terabit.net.ua 1KbzjB-000HnM-Jv dcf5e33396c93702a2d45d508c02f903 X-Terabit: YES Cc: Subject: Re: Linux applications core if running (k)qemu 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: Sat, 06 Sep 2008 16:08:07 -0000 --FG2vzoPGYsbT0vfz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Sep 06, 2008 at 02:46:59PM +0400, Chagin Dmitry wrote: > On Tue, Sep 02, 2008 at 03:56:33PM -0500, Sean C. Farley wrote: > > On Sat, 30 Aug 2008, Chagin Dmitry wrote: > >=20 > > >On Fri, Aug 29, 2008 at 05:29:09PM -0500, Sean C. Farley wrote: > > >>I am having trouble with kqemu.ko and linux.ko. If I run qemu with > > >>the following command, Linux applications (chroot, acroread, ls) will > > >>start core dumping: > > >> qemu-system-x86_64 -m 512 \ > > >> -drive file=3D/usr/QEMU/WinXP/c.img,if=3Dide,media=3Ddisk -boot c= \ > > >> -std-vga -parallel none -serial none -monitor stdio \ > > >> -net nic,model=3De1000 -net tap,ifname=3Dtap0,script=3Dno -localt= ime > > >> > > >>Loading kqemu.ko does not cause the problem, but the cores start a > > >>little after WinXP starts running. Unloading kqemu.ko does not help; > > >>the cores still happen but more randomly. I even tried unloading all > > >>linux modules and reloading them without luck. It takes a reboot. > > >> > > >>Packages: > > >>qemu-devel-0.9.1s.20080620_1 > > >>kqemu-kmod-devel-1.4.0.p1 > > >>linux_base-f8-8_4 > > >> > > >>sysctl: > > >>compat.linux.osrelease: 2.6.16 > > >> > > >>dmesg: > > >>kqemu version 0x00010400 > > >>kqemu: KQEMU installed, max_locked_mem=3D1792492kB. > > >> > > >>System is 7-STABLE as of r181963 with or without the patch to fix RT > > >>signals from Chagin. > > > > > >Interestingly... Sean, can you provide ktrace/kdump log of coring > > >apps? thnx! > >=20 > > Here they are (good and bad): > > http://www.farley.org/freebsd/tmp/linuxulator_vs_kqemu/ > >=20 > > The good trace is after the bad trace. I just kept running ktrace > > /compat/linux/bin/date over and over until I got a good trace. Before > > loading kqemu and running qemu, there were no core dumps. Also, I > > compared two bad traces and they were basically the same except for PID > > and a couple of addresses (still very close in value). > >=20 >=20 > Most likely it is a tls problem again, some days ago kib@ has made MFC > r182684, probably it will help.. I doubt it. This seems to be an ingenious kqemu bug. As far as I remember, it tries to use GDT/LDT. This probably has unwanted interaction with PCB_GS32BIT. --FG2vzoPGYsbT0vfz Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkjCodkACgkQC3+MBN1Mb4iYxACg0d0rGWlatJiR9+2E1ztZhq61 nsoAn2J3SrQL1vvW+9ChYKoaFTheHtfA =mfmx -----END PGP SIGNATURE----- --FG2vzoPGYsbT0vfz--