From owner-freebsd-xen@FreeBSD.ORG Fri Aug 17 23:43:32 2012 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id A2758106564A for ; Fri, 17 Aug 2012 23:43:32 +0000 (UTC) (envelope-from arvind.viswanathan@gmail.com) Received: from mail-lpp01m010-f54.google.com (mail-lpp01m010-f54.google.com [209.85.215.54]) by mx1.freebsd.org (Postfix) with ESMTP id 23BB88FC0A for ; Fri, 17 Aug 2012 23:43:31 +0000 (UTC) Received: by lage12 with SMTP id e12so2910879lag.13 for ; Fri, 17 Aug 2012 16:43:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=bjrNuHedQoIYoWPXUlmxUXgfPZmygq2dT9SgGWFkjv0=; b=x3w9C2NEw980tXi1XfQSyPtZ0Th8x4cQyM7SJ+f3Ps/ZOBe/1vojDI8Xrf7+KU7qV7 I5j+9zvRkgpoMxlVbjHcnkqNB7h/v7jyJvR4OH95+/Hg/3antwHYUzCQR6qGpF59WoZy TETpwRj7qqpbn9YAV6DDycbrULRzGFp8XT6wIbDD9VXGqaq7YYo2yezu20cUAWsHrJeA efAjs9yzIPQt0B8p5sXl7L8u2D1dwN8b+6gfMpVdAoOLqvSynbOGweMphyeGDm7zwrlL c/iERAc6pmQAxyhC0zDcz9rsxwHYHrnx6Nx9gqb8P5hdIK+Uc4mEGISpj22CesoLOdoO bnig== MIME-Version: 1.0 Received: by 10.112.82.66 with SMTP id g2mr3019136lby.15.1345247010763; Fri, 17 Aug 2012 16:43:30 -0700 (PDT) Received: by 10.112.24.234 with HTTP; Fri, 17 Aug 2012 16:43:30 -0700 (PDT) Date: Fri, 17 Aug 2012 16:43:30 -0700 Message-ID: From: arvind viswanathan To: freebsd-xen@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Further debugging X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Aug 2012 23:43:32 -0000 Hi, I experience a double fault and I dont see a core dump happening. I checked the params for core file generation seem to be fine. Not sure how to collect further information. Any pointers will be helpful. Trying to mount root from ufs:/dev/ad0s1d WARNING: / was not properly dismounted Fatal double fault rip =3D 0xffffffff804c5128 rsp =3D 0xfffffffeb3cb4ff8 rbp =3D 0xfffffffeb3cb5010 cpuid =3D 0; apic id =3D 00 kernel trap 12 with interrupts disabled =FF=FF=FF=FF=D6n=FF=FF=FF=FF) held by 0xffffff0028f0c350 (tid 100022) too l= ong Process name: irq28: xenpci0 Backtrace: kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled kernel trap 12 with interrupts disabled With image built using debug kernel, this is where the debugger stopped and backtrace appears as follows: Trying to mount root from ufs:/dev/ad0s1d db> ? Bad character ? db> bt Tracing pid 23 tid 100022 td 0xffffff0028f0c350 kdb_enter() at kdb_enter+0x41 panic() at panic+0x26d _mtx_lock_sleep() at _mtx_lock_sleep+0x181 _mtx_lock_flags() at _mtx_lock_flags+0xa1 trap_pfault() at trap_pfault+0xeb trap() at trap+0x2fa calltrap() at calltrap+0x8 --- trap 0xc, rip =3D 0xffffffff806d0f2d, rsp =3D 0xffffffff9457e3c0, rbp = =3D 0xffffffff9457e3d0 --- ffo_disable_com2() at ffo_disable_com2+0xd panic() at panic+0x230 _mtx_lock_sleep() at _mtx_lock_sleep+0x181 _mtx_lock_flags() at _mtx_lock_flags+0xa1 trap_pfault() at trap_pfault+0xeb trap() at trap+0x2fa calltrap() at calltrap+0x8 --- trap 0xc, rip =3D 0xffffffff806d0f2d, rsp =3D 0xffffffff9457e730, rbp = =3D 0xffffffff9457e740 --- ffo_disable_com2() at ffo_disable_com2+0xd panic() at panic+0x230 _mtx_lock_sleep() at _mtx_lock_sleep+0x181 However this doesnt look like a real reson for faulting Thanks Arvind