From owner-freebsd-current@FreeBSD.ORG Sun Oct 5 17:00:17 2014 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id CC77E105 for ; Sun, 5 Oct 2014 17:00:17 +0000 (UTC) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 559F6DF3 for ; Sun, 5 Oct 2014 17:00:17 +0000 (UTC) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.14.9/8.14.9) with ESMTP id s95H0780082389 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 5 Oct 2014 20:00:07 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.9.2 kib.kiev.ua s95H0780082389 Received: (from kostik@localhost) by tom.home (8.14.9/8.14.9/Submit) id s95H07fr082386; Sun, 5 Oct 2014 20:00:07 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Sun, 5 Oct 2014 20:00:07 +0300 From: Konstantin Belousov To: Adam McDougall Subject: Re: i915 driver update testing Message-ID: <20141005170007.GZ26076@kib.kiev.ua> References: <20141003170258.GG26076@kib.kiev.ua> <54315D3A.3090902@egr.msu.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54315D3A.3090902@egr.msu.edu> User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.0 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on tom.home Cc: freebsd-current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Oct 2014 17:00:17 -0000 On Sun, Oct 05, 2014 at 11:01:14AM -0400, Adam McDougall wrote: > (kgdb) #0 doadump (textdump=1) at pcpu.h:219 > #1 0xffffffff80661efd in kern_reboot (howto=260) > at /usr/src/sys/kern/kern_shutdown.c:447 > #2 0xffffffff80662450 in panic (fmt=) > at /usr/src/sys/kern/kern_shutdown.c:746 > #3 0xffffffff808fe52f in trap_fatal (frame=, > eva=) at /usr/src/sys/amd64/amd64/trap.c:866 > #4 0xffffffff808fe87c in trap_pfault (frame=0xfffffe01fe0b21b0, > usermode=) at /usr/src/sys/amd64/amd64/trap.c:677 > #5 0xffffffff808fde9e in trap (frame=0xfffffe01fe0b21b0) > at /usr/src/sys/amd64/amd64/trap.c:426 > #6 0xffffffff808e00a2 in calltrap () > at /usr/src/sys/amd64/amd64/exception.S:231 > #7 0xffffffff8166808e in i915_write32 (dev_priv=0xfffff800031f1c00, > reg=20736, val=0) > at > /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/i915_drv.c:992 In kgdb, from this frame, please do p *dev_priv p *(dev_priv->dev) p *(dev_priv->info) > #8 0xffffffff816928ae in intel_iicbb_pre_xfer (idev=) > at > /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/intel_iic.c:144 > #9 0xffffffff81725a17 in iicbb_transfer (dev=0xfffff800066fa400, > msgs=0xfffffe01fe0b2410, nmsgs=2) at iicbb_if.h:38 > #10 0xffffffff816931b7 in intel_gmbus_transfer (idev=, > msgs=, nmsgs=) > at iicbus_if.h:131 > #11 0xffffffff816a16b3 in intel_sdvo_init (dev=, > sdvo_reg=, is_sdvob=) > at > /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/intel_sdvo.c:286 > #12 0xffffffff81681bd7 in intel_modeset_init (dev=0xfffff80003c04000) > at > /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/intel_display.c:6603 > #13 0xffffffff81664fb7 in i915_driver_load (dev=0xfffff80003c04000, > flags=20736) > at > /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/i915_dma.c:1167 > #14 0xffffffff816e4b85 in drm_attach (kdev=0xfffff800031e3500, > idlist=) > at /usr/src/sys/modules/drm2/drm2/../../../dev/drm2/drm_drv.c:591 > at device_if.h:180 > #16 0xffffffff806990f9 in bus_generic_driver_added ( > dev=, driver=) > at /usr/src/sys/kern/subr_bus.c:2793 > #17 0xffffffff80695d5a in devclass_driver_added (dc=0xfffff80003085580, > driver=0xffffffff816bdf20) at bus_if.h:204 > #18 0xffffffff80695cbc in devclass_add_driver (dc=0xfffff80003085580, > driver=0xffffffff816bdf20, pass=, > dcp=) at /usr/src/sys/kern/subr_bus.c:1137 > #19 0xffffffff80649d12 in module_register_init (arg=0xffffffff816bdf08) > at /usr/src/sys/kern/kern_module.c:123 > #20 0xffffffff8063d214 in linker_load_module (kldname= out>, > modname=0xfffff800060fc400 "i915kms", parent=0x0, verinfo=0x0, > lfpp=0xfffffe01fe0b2a80) at /usr/src/sys/kern/kern_linker.c:224 > #21 0xffffffff8063ed08 in kern_kldload (td=, > file=, fileid=0xfffffe01fe0b2ac4) > at /usr/src/sys/kern/kern_linker.c:1029 > #22 0xffffffff8063ee4b in sys_kldload (td=0xfffff80006584920, > uap=) at /usr/src/sys/kern/kern_linker.c:1055 > #23 0xffffffff808fef8b in amd64_syscall (td=0xfffff80006584920, traced=0) > at subr_syscall.c:133 > #24 0xffffffff808e038b in Xfast_syscall () > at /usr/src/sys/amd64/amd64/exception.S:390 > #25 0x0000000800888cba in ?? () > Previous frame inner to this frame (corrupt stack?) > Current language: auto; currently minimal > (kgdb)