From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754526AbZAKQpf (ORCPT ); Sun, 11 Jan 2009 11:45:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752371AbZAKQp0 (ORCPT ); Sun, 11 Jan 2009 11:45:26 -0500 Received: from mail-bw0-f21.google.com ([209.85.218.21]:45816 "EHLO mail-bw0-f21.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752187AbZAKQpZ (ORCPT ); Sun, 11 Jan 2009 11:45:25 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=audDQTNoGdrwI/UL9Txbup3okM2ZlwNtJFAXf2o/N8/FC3rb0LSpZuOYbC58DUSXvw mrWwV6eUIaXG1EOe0RQHOtHYM8Jirw1PTX6TSrMmnZ0V7/Zbcs/uDvoY4Cl5e95H+Rj/ xDFQvXLMCS4jofINdSvzSBcWD6/LvNZt/RjDE= Message-ID: <64bb37e0901110845o2561db4auf68b86d024d210a0@mail.gmail.com> Date: Sun, 11 Jan 2009 17:45:22 +0100 From: "Torsten Kaiser" To: "Ingo Molnar" Subject: Re: [git pull] x86 fixes Cc: "Linus Torvalds" , linux-kernel@vger.kernel.org, "Andrew Morton" , "Thomas Gleixner" , "H. Peter Anvin" In-Reply-To: <20090111143951.GA6666@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20090111143951.GA6666@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 11, 2009 at 3:39 PM, Ingo Molnar wrote: > > Linus, > > Please pull the latest x86-fixes-for-linus git tree from: > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-fixes-for-linus > > out-of-topic modifications in x86-fixes-for-linus: > -------------------------------------------------- > include/asm-generic/pgtable.h # e104ba3: x86 PAT: change track_pfn_vma_new > mm/memory.c # e104ba3: x86 PAT: change track_pfn_vma_new > # e61304a: x86 PAT: remove PFNMAP type on tr > > Thanks, > > Ingo > > ------------------> > Andi Kleen (2): > x86: hpet: allow force enable on ICH10 HPET > x86: avoid theoretical vmalloc fault loop > > Jaswinder Singh Rajput (1): > x86: fix mpparse.c build error on latest git > > Kyle McMartin (1): > x86, mtrr: fix types used in userspace exported header > > Suresh Siddha (1): > x86, pat: fix reserve_memtype() for legacy 1MB range > > venkatesh.pallipadi@intel.com (6): > x86 PAT: remove PFNMAP type on track_pfn_vma_new() error > x86 PAT: consolidate old memtype new memtype check into a function > x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param > x86 PAT: return compatible mapping to remap_pfn_range callers > x86 PAT: ioremap_wc should take resource_size_t parameter > x86 PAT: remove CPA WARN_ON for zero pte Something is (very) wrong with one(?) of these patches. After upgrading from 2.6.28 to 2.6.29-rc1 I lost direct rendering. Each time I tried to start a program that uses DRM I get this in the syslog and the programm falls back to mesa software rendering: Jan 11 13:32:31 treogen [ 77.167977] X:3280 map pfn expected mapping type uncached-min us for e0000000-e7ff8000, got write-combining Jan 11 13:32:31 treogen [ 77.173620] X:3280 freeing invalid memtype e0000000-e7ff8000 Jan 11 13:34:51 treogen [ 217.861668] glxinfo:3492 map pfn expected mapping type uncach ed-minus for e0000000-e7ff8000, got write-combining Jan 11 13:34:51 treogen [ 217.867220] glxinfo:3492 freeing invalid memtype e0000000-e7f f8000 Jan 11 13:35:23 treogen [ 249.771043] glxinfo:3494 map pfn expected mapping type uncach ed-minus for e0000000-e7ff8000, got write-combining Jan 11 13:35:23 treogen [ 249.776589] glxinfo:3494 freeing invalid memtype e0000000-e7f f8000 Otherwise 2.6.29-rc1 worked for me. Even booting with 'fastboot' did not result in any problems, but it did cut the in-kernel-time down from ~12 sec to ~6 sec. Hoping to fix this memtype problem I applied the patch from the pull request to 29-rc1 and rebooted. Now the system completely locks up when X is trying to start. Via serial console I got this Oops: [ 79.500149] BUG: unable to handle kernel NULL pointer dereference at 0000000000000003 [ 79.509240] IP: [<0000000000000003>] 0x3 [ 79.510002] PGD 0 [ 79.510002] Oops: 0010 [#1] SMP [ 79.510002] last sysfs file: /sys/devices/pci0000:00/0000:00:0f.0/0000:01:00.0/enable [ 79.510002] CPU 0 [ 79.510002] Modules linked in: w83792d tuner tea5767 tda8290 tuner_xc2028 xc5000 tda9887 tuner_simple tuner_types mt20xx tea5761 tvaudio msp3400 bttv ir_common v4l2_common videodev v4l1_compat v4l2_compat_ioctl32 usbhid videobuf_dma_sg videobuf_core hid btcx_risc tveeprom sg pata_amd [ 79.510002] Pid: 0, comm: swapper Not tainted 2.6.29-rc1 #2 [ 79.510002] RIP: 0010:[<0000000000000003>] [<0000000000000003>] 0x3 [ 79.510002] RSP: 0018:ffffffff809a8b18 EFLAGS: 00010002 [ 79.510002] RAX: 0000000000000001 RBX: ffffffff00000000 RCX: 0000000000000000 [ 79.510002] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff809a8ca8 [ 79.510002] RBP: ffffffff809a8b18 R08: 0000000000000001 R09: 0000000000000100 [ 79.510002] R10: ffffffff8026af40 R11: 00000000000068d8 R12: 0000000000000000 [ 79.510002] R13: ffff88007e4fd700 R14: ffff880028018d00 R15: ffffffff809a8aa8 [ 79.510002] FS: 00007ff217e406f0(0000) GS:ffffffff809b1040(0000) knlGS:0000000000000000 [ 79.510002] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [ 79.510002] CR2: 0000000000000003 CR3: 0000000000201000 CR4: 00000000000006e0 [ 79.510002] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.510002] DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400 [ 79.510002] Process swapper (pid: 0, threadinfo ffffffff8087e000, task ffffffff807de360) [ 79.510002] Stack: [ 79.510002] ffffffff809a8b68 ffffffff802389d7 0000000000000000 ffffffff809a8b60 [ 79.510002] 0000000000000082 ffffffff8022a7a8 0000000000000000 0000000000000001 [ 79.510002] 0000000000000060 ffffffff807de360 ffffffff809a8b78 ffffffff80238b7d [ 79.510002] Call Trace: [ 79.510002] Call Trace: [ 79.510002] <0> [] try_to_wake_up+0x137/0x2d0 [ 79.510002] [] ? do_page_fault+0x368/0x970 [ 79.510002] [] default_wake_function+0xd/0x10 [ 79.510002] [] autoremove_wake_function+0x11/0x40 [ 79.510002] [] ? ata_scsi_qc_complete+0x1df/0x4c0 [ 79.510002] [] ? _spin_unlock_irqrestore+0x2f/0x40 [ 79.510002] [] ? generic_smp_call_function_interrupt+0xec/0x100 [ 79.510002] [] ? trace_hardirqs_off_thunk+0x3a/0x6c [ 79.510002] [] ? generic_smp_call_function_interrupt+0x0/0x100 [ 79.510002] [] ? generic_smp_call_function_interrupt+0xec/0x100 [ 79.510002] [] ? page_fault+0x1f/0x30 [ 79.510002] [] ? generic_smp_call_function_interrupt+0xec/0x100 [ 79.510002] [] ? generic_smp_call_function_interrupt+0x0/0x100 [ 79.510002] [] ? warn_slowpath+0x4c/0x130 [ 79.510002] [] ? scsi_next_command+0x45/0x60 [ 79.510002] [] ? scsi_io_completion+0x376/0x4e0 [ 79.510002] [] ? scsi_finish_command+0xac/0xe0 [ 79.510002] [] ? scsi_softirq_done+0xb8/0x140 [ 79.510002] [] ? __remove_hrtimer+0x40/0xa0 [ 79.510002] [] ? generic_smp_call_function_interrupt+0xec/0x100 [ 79.510002] [] ? smp_call_function_interrupt+0x1f/0x30 [ 79.510002] [] ? call_function_interrupt+0x13/0x20 [ 79.510002] <0>Code: Bad RIP value. [ 79.510002] RIP [<0000000000000003>] 0x3 [ 79.510002] RSP [ 79.510002] CR2: 0000000000000003 [ 79.510002] ---[ end trace 99e686e29f771a49 ]--- [ 79.510002] Kernel panic - not syncing: Fatal exception in interrupt [ 79.510002] ------------[ cut here ]------------ last sysfs file: /sys/devices/pci0000:00/0000:00:0f.0/0000:01:00.0/enable lspci -t: -[0000:00]-+-00.0 [snip] +-0f.0-[0000:01]--+-00.0 | \-00.1 lspci: 00:0f.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a3) 01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)] 01:00.1 Display controller: ATI Technologies Inc RV370 [Radeon X300SE] Userspace is xorg-server-1.5.3 with mesa-7.3_rc1 and xf86-video-ati-6.9.0. With 2.6.28 this combination works for accelerated direct rendering. PAT was enabled on 2.6.28 and both vanilla 2.6.29-rc1 and the patched -rc1. Just ask, if you need more information, or if you have a patch to try. Torsten