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Date:	Thu, 20 Mar 2014 17:56:20 +0100
From:	Peter Senna Tschudin <peter.senna@...il.com>
To:	Daniel Vetter <daniel.vetter@...ll.ch>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	David Airlie <airlied@...ux.ie>,
	intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: I915: OOPSes on linux-3.14-rc7

When Fedora updated the Kernel package from 3.12 to 3.13 my notebook
stopped booting (Kernel freezes) when a 2560 x 1440 high res monitor
is attached. I have tried using 3.13.6 from kernel.org and the problem
persists. The problem can be partially solved by passing nomodeset to
Kernel which will make the Kernel to boot, but the screens never comes
to life. When using 3.14-rc7 it boots again, the screen works, but
with some oops messages.

How can I help fixing this issue?

I've reported te bug at:
https://bugzilla.redhat.com/show_bug.cgi?id=1072557

drm related dmesg lines on linux-3.14-rc7:
[    1.602225] [drm] Initialized drm 1.1.0 20060810
[    1.795184] [drm] Memory usable by graphics device = 2048M
[    1.860121] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.860124] [drm] Driver supports precise vblank timestamp query.
[    1.860259] vgaarb: device changed decodes:
PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    1.910948] [drm] GMBUS [i915 gmbus panel] timed out, falling back
to bit banging on pin 3
[    1.943111] [drm] Wrong MCH_SSKPD value: 0x16040307
[    1.943117] [drm] This can cause pipe underruns and display issues.
[    1.943120] [drm] Please upgrade your BIOS to fix this.
[    2.192641] [drm:ironlake_disable_pch_transcoder] *ERROR* failed to
disable transcoder A
[    2.454038] Console: switching to colour frame buffer device 170x48
[    2.461511] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    2.461514] i915 0000:00:02.0: registered panic notifier
[    2.462577] ACPI: Video Device [GFX0] (multi-head: yes  rom: yes  post: no)
[    2.467139] acpi device:05: registered as cooling_device4
[    2.467447] input: Video Bus as
/devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:01/input/input9
[    2.467696] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[    3.709772] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off


OOPSes on linux-3.14-rc7:
WARNING: CPU: 3 PID: 124 at drivers/gpu/drm/i915/intel_display.c:450
i9xx_clock+0x81/0xb0 [i915]()
Modules linked in: i915(+) i2c_algo_bit drm_kms_helper drm i2c_core video
CPU: 3 PID: 124 Comm: systemd-udevd Not tainted 3.14.0-rc7 #1
Hardware name: TOSHIBA PORTEGE R830/Portable PC, BIOS Version 4.10   01/08/2013
 0000000000000009 ffff8804345f7818 ffffffff8168e6d2 0000000000000000
 ffff8804345f7850 ffffffff8108199d ffff88043787f6d8 0000000001000000
 000000000001d4c0 0000000000000000 ffff88043787f000 ffff8804345f7860
Call Trace:
 [<ffffffff8168e6d2>] dump_stack+0x45/0x56
 [<ffffffff8108199d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81081a7a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa00ad051>] i9xx_clock+0x81/0xb0 [i915]
 [<ffffffffa00b04e0>] i9xx_crtc_clock_get.isra.31+0x1d0/0x2c0 [i915]
 [<ffffffffa00b2b79>] ironlake_get_pipe_config+0x209/0x2f0 [i915]
 [<ffffffffa00c1f54>] intel_modeset_setup_hw_state+0xb4/0xc20 [i915]
 [<ffffffffa00c2afd>] intel_modeset_gem_init+0x3d/0x50 [i915]
 [<ffffffffa00891f8>] i915_driver_load+0xc98/0xe10 [i915]
 [<ffffffffa002682b>] drm_dev_register+0x7b/0x160 [drm]
 [<ffffffffa0028cb0>] drm_get_pci_dev+0xa0/0x220 [drm]
 [<ffffffffa00856fb>] i915_pci_probe+0x3b/0x60 [i915]
 [<ffffffff813660d5>] local_pci_probe+0x45/0xa0
 [<ffffffff81367451>] pci_device_probe+0xd1/0x130
 [<ffffffff8142ab75>] driver_probe_device+0x125/0x3a0
 [<ffffffff8142aec3>] __driver_attach+0x93/0xa0
 [<ffffffff8142ae30>] ? __device_attach+0x40/0x40
 [<ffffffff81428ae3>] bus_for_each_dev+0x63/0xa0
 [<ffffffff8142a52e>] driver_attach+0x1e/0x20
 [<ffffffff8142a110>] bus_add_driver+0x180/0x250
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffff8142b4f4>] driver_register+0x64/0xf0
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffff81365a7b>] __pci_register_driver+0x4b/0x50
 [<ffffffffa0028f4a>] drm_pci_init+0x11a/0x130 [drm]
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffffa014706a>] i915_init+0x6a/0x6c [i915]
 [<ffffffff81002142>] do_one_initcall+0xd2/0x180
 [<ffffffff81057133>] ? set_memory_nx+0x43/0x50
 [<ffffffff810f7086>] load_module+0x1bb6/0x2580
 [<ffffffff810f2c70>] ? store_uevent+0x40/0x40
 [<ffffffff810f3751>] ? copy_module_from_fd.isra.47+0x121/0x180
 [<ffffffff810f7bc6>] SyS_finit_module+0x86/0xb0
 [<ffffffff8169de29>] system_call_fastpath+0x16/0x1b
---[ end trace 628c8f95ba351f1a ]---

WARNING: CPU: 3 PID: 124 at drivers/gpu/drm/i915/intel_display.c:450
i9xx_clock+0x81/0xb0 [i915]()
Modules linked in: i915(+) i2c_algo_bit drm_kms_helper drm i2c_core video
CPU: 3 PID: 124 Comm: systemd-udevd Tainted: G        W    3.14.0-rc7 #1
Hardware name: TOSHIBA PORTEGE R830/Portable PC, BIOS Version 4.10   01/08/2013
 0000000000000009 ffff8804345f7500 ffffffff8168e6d2 0000000000000000
 ffff8804345f7538 ffffffff8108199d ffff8804345f7608 0000000001000000
 000000000001d4c0 0000000000000000 ffff880434076b18 ffff8804345f7548
Call Trace:
 [<ffffffff8168e6d2>] dump_stack+0x45/0x56
 [<ffffffff8108199d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81081a7a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa00ad051>] i9xx_clock+0x81/0xb0 [i915]
 [<ffffffffa00b04e0>] i9xx_crtc_clock_get.isra.31+0x1d0/0x2c0 [i915]
 [<ffffffffa00b2b79>] ironlake_get_pipe_config+0x209/0x2f0 [i915]
 [<ffffffffa00b120e>] check_crtc_state+0x11e/0xc60 [i915]
 [<ffffffffa00bf1ab>] intel_modeset_check_state+0x2bb/0x7b0 [i915]
 [<ffffffffa00e10cc>] ? ilk_wm_get_hw_state+0x1bc/0x2b0 [i915]
 [<ffffffffa00c281e>] intel_modeset_setup_hw_state+0x97e/0xc20 [i915]
 [<ffffffffa00c2afd>] intel_modeset_gem_init+0x3d/0x50 [i915]
 [<ffffffffa00891f8>] i915_driver_load+0xc98/0xe10 [i915]
 [<ffffffffa002682b>] drm_dev_register+0x7b/0x160 [drm]
 [<ffffffffa0028cb0>] drm_get_pci_dev+0xa0/0x220 [drm]
 [<ffffffffa00856fb>] i915_pci_probe+0x3b/0x60 [i915]
 [<ffffffff813660d5>] local_pci_probe+0x45/0xa0
 [<ffffffff81367451>] pci_device_probe+0xd1/0x130
 [<ffffffff8142ab75>] driver_probe_device+0x125/0x3a0
 [<ffffffff8142aec3>] __driver_attach+0x93/0xa0
 [<ffffffff8142ae30>] ? __device_attach+0x40/0x40
 [<ffffffff81428ae3>] bus_for_each_dev+0x63/0xa0
 [<ffffffff8142a52e>] driver_attach+0x1e/0x20
 [<ffffffff8142a110>] bus_add_driver+0x180/0x250
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffff8142b4f4>] driver_register+0x64/0xf0
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffff81365a7b>] __pci_register_driver+0x4b/0x50
 [<ffffffffa0028f4a>] drm_pci_init+0x11a/0x130 [drm]
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffffa014706a>] i915_init+0x6a/0x6c [i915]
 [<ffffffff81002142>] do_one_initcall+0xd2/0x180
 [<ffffffff81057133>] ? set_memory_nx+0x43/0x50
 [<ffffffff810f7086>] load_module+0x1bb6/0x2580
 [<ffffffff810f2c70>] ? store_uevent+0x40/0x40
 [<ffffffff810f3751>] ? copy_module_from_fd.isra.47+0x121/0x180
 [<ffffffff810f7bc6>] SyS_finit_module+0x86/0xb0
 [<ffffffff8169de29>] system_call_fastpath+0x16/0x1b
---[ end trace 628c8f95ba351f1b ]---

WARNING: CPU: 1 PID: 124 at drivers/gpu/drm/i915/intel_display.c:857
intel_wait_for_pipe_off+0x1db/0x1f0 [i915]()
pipe_off wait timed out
Modules linked in: i915(+) i2c_algo_bit drm_kms_helper drm i2c_core video
CPU: 1 PID: 124 Comm: systemd-udevd Tainted: G        W    3.14.0-rc7 #1
Hardware name: TOSHIBA PORTEGE R830/Portable PC, BIOS Version 4.10   01/08/2013
 0000000000000009 ffff8804345f7318 ffffffff8168e6d2 ffff8804345f7360
 ffff8804345f7350 ffffffff8108199d ffff880433404000 0000000000070008
 00000000fffb746b 0000000000000000 ffff880434076b10 ffff8804345f73b0
Call Trace:
 [<ffffffff8168e6d2>] dump_stack+0x45/0x56
 [<ffffffff8108199d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81081a0c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffffa00b402b>] intel_wait_for_pipe_off+0x1db/0x1f0 [i915]
 [<ffffffffa00b40e0>] intel_disable_pipe+0xa0/0xb0 [i915]
 [<ffffffffa00b51e4>] ironlake_crtc_disable+0xe4/0x950 [i915]
 [<ffffffffa00b10de>] ? intel_dump_pipe_config.isra.45+0x35e/0x370 [i915]
 [<ffffffffa00bc574>] __intel_set_mode+0x884/0x1600 [i915]
 [<ffffffffa00bf726>] intel_set_mode+0x16/0x30 [i915]
 [<ffffffffa00bffeb>] intel_crtc_set_config+0x7bb/0x990 [i915]
 [<ffffffffa002c4ed>] drm_mode_set_config_internal+0x5d/0xe0 [drm]
 [<ffffffffa007ce61>] drm_fb_helper_set_par+0x71/0xf0 [drm_kms_helper]
 [<ffffffff8138f4b4>] fbcon_init+0x4f4/0x570
 [<ffffffff813fd858>] visual_init+0xb8/0x120
 [<ffffffff81400173>] do_bind_con_driver+0x163/0x330
 [<ffffffff81400924>] do_take_over_console+0x114/0x1c0
 [<ffffffff8138ad63>] do_fbcon_takeover+0x63/0xd0
 [<ffffffff8139001d>] fbcon_event_notify+0x60d/0x720
 [<ffffffff8169913c>] notifier_call_chain+0x4c/0x70
 [<ffffffff810a7e2d>] __blocking_notifier_call_chain+0x4d/0x70
 [<ffffffff810a7e66>] blocking_notifier_call_chain+0x16/0x20
 [<ffffffff81381e3b>] fb_notifier_call_chain+0x1b/0x20
 [<ffffffff81383e06>] register_framebuffer+0x1e6/0x320
 [<ffffffffa007cb4f>] drm_fb_helper_initial_config+0x32f/0x500 [drm_kms_helper]
 [<ffffffffa00f2da2>] ? gen6_read32+0x52/0x110 [i915]
 [<ffffffffa00fa6a1>] intel_fbdev_initial_config+0x21/0x30 [i915]
 [<ffffffffa008933e>] i915_driver_load+0xdde/0xe10 [i915]
 [<ffffffffa002682b>] drm_dev_register+0x7b/0x160 [drm]
 [<ffffffffa0028cb0>] drm_get_pci_dev+0xa0/0x220 [drm]
 [<ffffffffa00856fb>] i915_pci_probe+0x3b/0x60 [i915]
 [<ffffffff813660d5>] local_pci_probe+0x45/0xa0
 [<ffffffff81367451>] pci_device_probe+0xd1/0x130
 [<ffffffff8142ab75>] driver_probe_device+0x125/0x3a0
 [<ffffffff8142aec3>] __driver_attach+0x93/0xa0
 [<ffffffff8142ae30>] ? __device_attach+0x40/0x40
 [<ffffffff81428ae3>] bus_for_each_dev+0x63/0xa0
 [<ffffffff8142a52e>] driver_attach+0x1e/0x20
 [<ffffffff8142a110>] bus_add_driver+0x180/0x250
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffff8142b4f4>] driver_register+0x64/0xf0
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffff81365a7b>] __pci_register_driver+0x4b/0x50
 [<ffffffffa0028f4a>] drm_pci_init+0x11a/0x130 [drm]
 [<ffffffffa0147000>] ? 0xffffffffa0146fff
 [<ffffffffa014706a>] i915_init+0x6a/0x6c [i915]
 [<ffffffff81002142>] do_one_initcall+0xd2/0x180
 [<ffffffff81057133>] ? set_memory_nx+0x43/0x50
 [<ffffffff810f7086>] load_module+0x1bb6/0x2580
 [<ffffffff810f2c70>] ? store_uevent+0x40/0x40
 [<ffffffff810f3751>] ? copy_module_from_fd.isra.47+0x121/0x180
 [<ffffffff810f7bc6>] SyS_finit_module+0x86/0xb0
 [<ffffffff8169de29>] system_call_fastpath+0x16/0x1b
---[ end trace 628c8f95ba351f1c ]---


-- 
Peter
--
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