From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759040Ab0ENK1w (ORCPT ); Fri, 14 May 2010 06:27:52 -0400 Received: from relay01.mx.bawue.net ([193.7.176.67]:34083 "EHLO relay01.mx.bawue.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758812Ab0ENK1u (ORCPT ); Fri, 14 May 2010 06:27:50 -0400 Date: Fri, 14 May 2010 12:27:43 +0200 From: Nils Radtke To: daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, j.e.van.grootheest@caiway.nl Subject: Re: BUG: unable to handle kernel NULL pointer dereference, i915_gem_object_move_to_active Message-ID: <20100514102743.GE7535@localhost> Reply-To: Nils Radtke MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100508180435.GB17682@viiv.ffwll.ch> <20100508132750.GA17682@viiv.ffwll.ch> <20100504225138.GX3479@localhost> X-Url: http://www.Think-Future.de X-Editor: Vi it! http://www.vim.org X-Bkp: p2mi User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi David, Upon typing the first character of the password in the kdm pw mask, X hung. Luckily, network was still operable so I was able to catch the bug_on. I applied the patch against .33.3. This seems indeed to be the same bug you're already having reports for. So: me too! I'm somehow unable to get bugzilla to accept my mail addresses.. Can you please add a link to this thread on my behalf? Thank you. Cheers, Nils Other msgs: http://permalink.gmane.org/gmane.comp.video.dri.devel/45916 http://permalink.gmane.org/gmane.comp.video.dri.devel/45936 http://permalink.gmane.org/gmane.comp.video.dri.devel/45909 http://permalink.gmane.org/gmane.comp.video.dri.devel/45844 http://permalink.gmane.org/gmane.comp.video.dri.devel/45843 ------------[ cut here ]------------ kernel BUG at drivers/gpu/drm/i915/i915_gem.c:2694! invalid opcode: 0000 [#1] PREEMPT last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda/uevent Modules linked in: video1394 raw1394 dv1394 vboxnetflt vboxnetadp vboxdrv firewire_ohci firewire_core ohci1394 tg3 uhci_hcd ieee1394 libphy Pid: 3258, comm: Xorg Not tainted 2.6.33.3 #4 Columbia /Extensa 5220 EIP: 0060:[] EFLAGS: 00213246 CPU: 0 EIP is at i915_gem_clflush_object+0x9d/0xb0 EAX: f0e5d9c0 EBX: f0e950c0 ECX: 00000001 EDX: 00000000 ESI: f0eb7f40 EDI: 00000000 EBP: 00000044 ESP: f0dbfda0 DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process Xorg (pid: 3258, ti=f0dbe000 task=f19a6580 task.ti=f0dbe000) Stack: f0e950c0 00000000 00000000 c1349ca7 00000001 00001000 f0eb7f40 f0e950c0 <0> 00000000 f73cf000 c134ac06 00000289 0000028a 0000028a f6c01614 c10ea294 <0> f0dd36c0 f0e950c0 f0eb7f40 f73cf000 00000000 c134b755 f73cf000 f0e950c0 Call Trace: [] ? i915_gem_object_set_to_cpu_domain+0x147/0x160 [] ? i915_gem_object_unbind+0x46/0x250 [] ? dput+0x84/0x130 [] ? i915_gem_free_object+0x45/0x110 [] ? drm_gem_object_free+0x23/0x50 [] ? drm_gem_object_free+0x0/0x50 [] ? kref_put+0x29/0x60 [] ? drm_gem_close_ioctl+0x9f/0xf0 [] ? drm_ioctl+0x1f0/0x360 [] ? drm_gem_close_ioctl+0x0/0xf0 [] ? unmap_vmas+0x445/0x650 [] ? drm_ioctl+0x0/0x360 [] ? vfs_ioctl+0x2b/0xa0 [] ? do_vfs_ioctl+0x79/0x5f0 [] ? free_pgtables+0xb8/0xf0 [] ? unmap_region+0xd4/0x140 [] ? remove_vma+0x37/0x50 [] ? do_munmap+0x1f2/0x2b0 [] ? sys_ioctl+0x76/0x90 [] ? sysenter_do_call+0x12/0x22 Code: 8d c1 85 ff 74 0f 8b 17 83 c7 04 89 d8 ff d2 8b 17 85 d2 75 f3 89 e0 25 00 e0 ff ff 83 68 14 01 f6 40 08 08 75 09 8b 46 2c eb 94 <0f> 0b eb fe e8 5a 07 33 00 eb f0 90 8d b4 26 00 00 00 00 83 ec EIP: [] i915_gem_clflush_object+0x9d/0xb0 SS:ESP 0068:f0dbfda0 ---[ end trace fa21ae323a16481c ]--- SysRq : Emergency Sync Emergency Sync complete SysRq : Show Memory Mem-Info: DMA per-cpu: CPU 0: hi: 0, btch: 1 usd: 0 Normal per-cpu: CPU 0: hi: 186, btch: 31 usd: 54 HighMem per-cpu: CPU 0: hi: 186, btch: 31 usd: 163 active_anon:7158 inactive_anon:0 isolated_anon:0 active_file:63024 inactive_file:18505 isolated_file:0 unevictable:523 dirty:8 writeback:0 unstable:0 free:286713 slab_reclaimable:2557 slab_unreclaimable:1917 mapped:4678 shmem:3860 pagetables:138 bounce:0 DMA free:15912kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15804kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 865 1499 1499 Normal free:573808kB min:3728kB low:4660kB high:5592kB active_anon:0kB inactive_anon:0kB active_file:237704kB inactive_file:26840kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:885944kB mlocked:0kB dirty:20kB writeback:0kB mapped:4kB shmem:0kB slab_reclaimable:10228kB slab_unreclaimable:7668kB kernel_stack:888kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 5070 5070 HighMem free:557132kB min:512kB low:1192kB high:1876kB active_anon:28632kB inactive_anon:0kB active_file:14392kB inactive_file:47180kB unevictable:2092kB isolated(anon):0kB isolated(file):0kB present:649040kB mlocked:0kB dirty:12kB writeback:0kB mapped:18708kB shmem:15440kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:552kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 DMA: 2*4kB 2*8kB 1*16kB 2*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15912kB Normal: 2*4kB 7*8kB 1*16kB 1*32kB 0*64kB 2*128kB 0*256kB 0*512kB 2*1024kB 1*2048kB 139*4096kB = 573808kB HighMem: 827*4kB 370*8kB 49*16kB 22*32kB 16*64kB 22*128kB 27*256kB 16*512kB 4*1024kB 1*2048kB 128*4096kB = 557132kB 85912 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 2931820kB Total swap = 2931820kB 390848 pages RAM 163538 pages HighMem 7671 pages reserved 80972 pages shared 21433 pages non-shared