From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753102AbcBPCmm (ORCPT ); Mon, 15 Feb 2016 21:42:42 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:47974 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752966AbcBPCmj (ORCPT ); Mon, 15 Feb 2016 21:42:39 -0500 X-AuditID: cbfee691-f79766d0000012b6-b5-56c28c958a01 Date: Tue, 16 Feb 2016 02:42:29 +0000 (GMT) From: Jongman Heo Subject: 4.5 regression - [drm/vmwgfx] BUG: unable to handle kernel NULL pointer dereference at (null) To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, syeh@vmware.com, thellstrom@vmware.com, airlied@linux.ie Reply-to: jongman.heo@samsung.com MIME-version: 1.0 X-MTR: 20160216023633365@jongman.heo Msgkey: 20160216023633365@jongman.heo X-EPLocale: ko_KR.euc-kr X-Priority: 3 X-EPWebmail-Msg-Type: personal X-EPWebmail-Reply-Demand: 0 X-EPApproval-Locale: X-EPHeader: ML X-MLAttribute: X-RootMTR: 20160216023633365@jongman.heo X-ParentMTR: X-ArchiveUser: X-CPGSPASS: N X-ConfirmMail: N,general Content-type: text/plain; charset=euc-kr MIME-version: 1.0 Message-id: <602778812.960991455590549821.JavaMail.weblogic@epmlwas07d> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrKIsWRmVeSWpSXmKPExsWyRsSkUHdqz6Ewg3m3rS0u75rD5sDo8XmT XABjFJdNSmpOZllqkb5dAlfGjObfzAW7lCo+fdzC2sB4RLGLkZNDSEBN4ubnQ4wgtoSAicS2 LRtZIGwxiQv31rN1MXIB1SxllNi/6TcTTNGRdYfZIJrnMErMvhzXxcjBwSKgKrH9dDhImE1A R6Lj/35WEFtYIE2iadVlZpA5IgK7GSX69/1lhOhVlLi2dDHYHF4BQYmTM59ALVaROH1sDytE XFXi86Y97BBxCYlZ0y+wQti8EjPan0LVy0lM+7qGGcKWljg/awMjzAOLvz+GivNLHLu9A+p+ AYmpZw5C1WhKbPn4C2oOn8SahW9ZYOp3nVrODLPr/pa5TDA3bG15AnYDM9D9U7ofskPYWhJf fuzD8AuvgLvE+/f3wYEoIdDIIfHrwm2wIhagI75NPsQygVFxFpKeWUjmzkIyF1nNAkaWVYyi qQXJBcVJ6UWmesWJucWleel6yfm5mxiBqeH0v2cTdzDeP2B9iFGAg1GJh3eD66EwIdbEsuLK 3EOMpkCrJzJLiSbnAxNQXkm8obGZkYWpiamxkbmlmZI4r470z2AhgfTEktTs1NSC1KL4otKc 1OJDjEwcnFINjPYdKjLzpzs+Kzwsvnvpz3PzDW5FPuAWdHZ/m/G6pOPT+Ss8q85PsblkJZC9 VMjs9f2ak2cmP/iyZu1xtlKf6ZKz5DbeYtz+Vfhv1DfdiZ6C5lyhbx6/Yl69Z4X5UftJ9nPW iv2LShOaIr369Yaub+m852zmv9zbdDG2IkH7FWP+xLm3477c7+ZUYinOSDTUYi4qTgQAYzGA 9QgDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFKsWRmVeSWpSXmKPExsVy+t/tft2pPYfCDC61mFtc3jWHzYHR4/Mm uQDGqDSbjNTElNQihdS85PyUzLx0WyXv4HjneFMzA0NdQ0sLcyWFvMTcVFslF58AXbfMHKCh SgpliTmlQKGAxOJiJX07m6L80pJUhYz84hJbpWhDcyM9IwM9UyM9Q+NYK0MDAyNToJqEtIwZ zb+ZC3YpVXz6uIW1gfGIYhcjJ4eQgJrEzc+HGEFsCQETiSPrDrNB2GISF+6tZ4OomcMoMfty XBcjBweLgKrE9tPhIGE2AR2Jjv/7WUFsYYE0iaZVl5m7GLk4RAR2M0r07/vLCNGrKHFt6WKw ObwCghInZz5hgZivInH62B5WiLiqxOdNe9gh4hISs6ZfYIWweSVmtD+FqpeTmPZ1DTOELS1x ftYGRpg7F39/DBXnlzh2ewcThC0gMfXMQagaTYktH39BzeGTWLPwLQtM/a5Ty5lhdt3fMpcJ 5oatLU/AbmAGun9K90N2CFtL4suPfRh+4RVwl3j//j7bBEaZWUhSs5C0z0LSjqxmASPLKkbR 1ILkguKk9ApjveLE3OLSvHS95PzcTYzgdPNs8Q7G/+etDzEKcDAq8fBucD0UJsSaWFZcmXuI UYKDWUmE92oYUIg3JbGyKrUoP76oNCe1+BCjKTCmJjJLiSbnA1NhXkm8obGxiZmJqaWJhYGp uZI4b8DfdWFCAumJJanZqakFqUUwfUwcnFINjOYBPPU3e9ua9X1NZupeT3s12++tZxKL8hLJ /rXBNyZ0Ti/fsn7FHdckpaVv76/fcMN+y01DoRUC3Gwr713rv91xwCIq4WjwvbnpVnbi8pcO iztt2LF7jrH4h7NpUiemRs1JX6cZsmuKvHd5qMR9m4ZJJ5znvzfK8utPW90R86Za4pJfuOah 60osxRmJhlrMRcWJAIowqGhNAwAA DLP-Filter: Pass X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id u1G2glMV019818 Hi all, With Linux 4.5-rc4, I still have a problem what I had reported, on VMWare workstation 10 (Linux guest, Windows 7 host); [drm/vmwgfx] BUG: unable to handle kernel NULL pointer dereference at (null) http://linux-kernel.2935.n7.nabble.com/drm-vmwgfx-BUG-unable-to-handle-kernel-NULL-pointer-dereference-at-null-td1283153.html First bad commit was d56f57ac "drm/gma500: Move to private save/restore hooks." [ 74.569484] BUG: unable to handle kernel NULL pointer dereference at (null) [ 74.569490] IP: [< (null)>] (null) [ 74.569493] *pde = 00000000 [ 74.569495] Oops: 0010 [#1] SMP [ 74.569498] Modules linked in: [ 74.569502] CPU: 5 PID: 900 Comm: gnome-shell Not tainted 4.5.0-rc4+ #216 [ 74.569505] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 [ 74.569507] task: f677d580 ti: efad0000 task.ti: efad0000 [ 74.569509] EIP: 0060:[<00000000>] EFLAGS: 00210246 CPU: 5 [ 74.569511] EIP is at 0x0 [ 74.569513] EAX: f6e08358 EBX: f6d90000 ECX: 00002000 EDX: 00002000 [ 74.569514] ESI: f6e0836c EDI: c0d2bac0 EBP: efad1dbc ESP: efad1d34 [ 74.569516] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 74.569518] CR0: 80050033 CR2: 00000000 CR3: 2f97b000 CR4: 001406d0 [ 74.569581] Stack: [ 74.569583] c09619ed ffff0a00 efad1d64 c0841138 ffffff04 00000001 ffff0a00 f6d9012c [ 74.569588] ffffffff efa38e00 c0f4abd8 f0e930bc efad1e04 00000000 00000000 00000000 [ 74.569591] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 74.569595] Call Trace: [ 74.569601] [] ? drm_mode_getconnector+0x28d/0x320 [ 74.569605] [] ? string+0x78/0x90 [ 74.569608] [] ? drm_mode_getcrtc+0x140/0x140 [ 74.569611] [] drm_ioctl+0x149/0x4f0 [ 74.569613] [] ? drm_mode_getcrtc+0x140/0x140 [ 74.569617] [] ? prepare_reply+0x17/0xc0 [ 74.569620] [] ? futex_wake+0x7d/0x180 [ 74.569625] [] vmw_unlocked_ioctl+0x16e/0x270 [ 74.569627] [] ? do_futex+0x102/0x930 [ 74.569629] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569632] [] ? vmw_pm_suspend+0x50/0x50 [ 74.569635] [] do_vfs_ioctl+0x8c/0x730 [ 74.569639] [] ? handle_mm_fault+0x99a/0x1440 [ 74.569642] [] ? SyS_futex+0x93/0x160 [ 74.569645] [] SyS_ioctl+0x68/0x80 [ 74.569647] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569649] [] do_fast_syscall_32+0x8d/0x150 [ 74.569651] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569653] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569655] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569658] [] sysenter_past_esp+0x3d/0x5d [ 74.569660] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569662] [] ? timekeeping_inject_offset+0x2b7/0x2c0 [ 74.569663] Code: Bad EIP value. [ 74.569667] EIP: [<00000000>] 0x0 SS:ESP 0068:efad1d34 [ 74.569669] CR2: 0000000000000000 [ 74.569729] ---[ end trace c16827c10f10024e ]--- Thanks, Jongman.