From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 34022] Kernel OOPS turning on Radeon on vgaswitcheroo enabled system Date: Wed, 27 Apr 2011 19:47:08 GMT Message-ID: <201104271947.p3RJl8I0028668@demeter2.kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.sourceforge.net List-Id: dri-devel@lists.freedesktop.org https://bugzilla.kernel.org/show_bug.cgi?id=34022 --- Comment #2 from blazej.bucko@gmail.com 2011-04-27 19:47:07 --- Sorry for spaming.. Ok. Last try: I'm using vgaswitcheroo on T500 (Radeon/i915) and after upgrading kernel to 2.6.38 OOPS started to occur. Previously (2.6.37) everything worked fine. I checked 2.6.39 and error still occurs. Also when I add radeon.modeset=0 i915.modeset=1 to kernel command line vgaswitcheroo is off and both cards are working OK. This is exact error: BUG: unable to handle kernel NULL pointer dereference at 000000000000008e IP: [] drm_mode_connector_update_edid_property+0x71/0x1d0 [drm] PGD 151421067 PUD 1520d2067 PMD 0 Oops: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1a.1/usb4/4-2/4-2:1.0/bluetooth/hci0/rfkill2/uevent CPU 1 Modules linked in: btusb bluetooth uvcvideo videodev v4l2_compat_ioctl32 arc4 ecb snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss thinkpad_acpi nvram radeon(+) pcmcia snd_hda_codec_conexant joydev ttm snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc iwlagn iwlcore mac80211 cfg80211 rfkill yenta_socket pcmcia_rsrc pcmcia_core firewire_ohci firewire_core crc_itu_t i915 thermal battery drm_kms_helper uhci_hcd drm i2c_algo_bit wmi ac sdhci_pci sdhci mmc_core ehci_hcd video button usbcore psmouse i2c_i801 i2c_core serio_raw sg intel_agp intel_gtt iTCO_wdt iTCO_vendor_support evdev pcspkr input_polldev cpufreq_ondemand acpi_cpufreq freq_table processor mperf e1000e ext3 jbd mbcache sr_mod cdrom sd_mod ahci libahci libata scsi_mod Pid: 1981, comm: modprobe Not tainted 2.6.38.2-vanilla #1 LENOVO 20827TG/20827TG RIP: 0010:[] [] drm_mode_connector_update_edid_property+0x71/0x1d0 [drm] RSP: 0018:ffff8801517d7968 EFLAGS: 00010202 RAX: 0000000000000010 RBX: ffff88014e75b800 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff88014e75b800 RBP: ffff8801517d79a8 R08: 0000000000000100 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000010 R14: ffff880152102800 R15: ffff880152102800 FS: 00007f82e203d700(0000) GS:ffff88009d280000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000000008e CR3: 0000000151588000 CR4: 00000000000406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process modprobe (pid: 1981, threadinfo ffff8801517d6000, task ffff880150e7e810) Stack: ffff8801522d8000 0000000000000000 ffffffffa04c1e20 ffff88014e75b800 ffff8801522d8000 0000000000000000 ffffffffa04c1e20 ffff880152102800 ffff8801517d79c8 ffffffffa042d6b6 ffff88014e75b800 ffff88014e75b800 Call Trace: [] radeon_ddc_get_modes+0x56/0x120 [radeon] [] radeon_lvds_get_modes+0x2e/0x260 [radeon] [] drm_helper_probe_single_connector_modes+0xd4/0x380 [drm_kms_helper] [] ? fb_get_options+0x1d/0x110 [] drm_fb_helper_initial_config+0x2c3/0x6c0 [drm_kms_helper] [] ? __kmalloc+0x12b/0x170 [] ? kmem_cache_alloc_trace+0x11b/0x130 [] radeon_fbdev_init+0xc5/0x110 [radeon] [] radeon_modeset_init+0x55c/0x910 [radeon] [] ? radeon_acpi_init+0x87/0xb8 [radeon] [] radeon_driver_load_kms+0x110/0x1a0 [radeon] [] drm_get_pci_dev+0x186/0x2c0 [drm] [] ? kmem_cache_alloc_trace+0x11b/0x130 [] radeon_pci_probe+0xad/0xb5 [radeon] [] local_pci_probe+0x5a/0xd0 [] pci_device_probe+0x109/0x110 [] ? driver_sysfs_add+0x7a/0xb0 [] driver_probe_device+0x96/0x1c0 [] __driver_attach+0x9b/0xa0 [] ? __driver_attach+0x0/0xa0 [] bus_for_each_dev+0x5e/0x90 [] driver_attach+0x19/0x20 [] bus_add_driver+0x150/0x280 [] ? radeon_init+0x0/0xc6 [radeon] [] driver_register+0x71/0x140 [] ? __mutex_lock_slowpath+0x22d/0x310 [] ? radeon_init+0x0/0xc6 [radeon] [] __pci_register_driver+0x51/0xd0 [] drm_pci_init+0xd0/0xe0 [drm] [] ? radeon_init+0x0/0xc6 [radeon] [] ? radeon_init+0x0/0xc6 [radeon] [] drm_init+0x53/0x70 [drm] [] radeon_init+0xc4/0xc6 [radeon] [] do_one_initcall+0x3f/0x180 [] sys_init_module+0xbb/0x200 [] system_call_fastpath+0x16/0x1b Code: b9 00 02 20 00 00 00 ad de 4c 89 e7 48 89 42 08 48 89 10 49 89 74 24 08 49 89 4c 24 10 e8 78 21 fc e0 4d 85 ed 0f 84 cf 00 00 00 <41> 0f b6 4d 7e be d0 80 00 00 4c 8b 3b 83 c1 01 c1 e1 07 48 63 RIP [] drm_mode_connector_update_edid_property+0x71/0x1d0 [drm] RSP CR2: 000000000000008e ---[ end trace 93c56409aa502cdb ]--- -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. 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