[Intel-gfx] backtrace with 3.9.0-rc4 on MBP retina

[Dave Airlie]

Just stuck 3.9.0-rc4 on my MBP today, got this throwing up.

Dave.

[    3.482355] [drm] Memory usable by graphics device = 2048M
[    3.482381] i915 0000:00:02.0: setting latency timer to 64
[    3.482768] sdhci-pci 0000:03:00.1: SDHCI controller found
[14e4:16bc] (rev 10)
[    3.482825] sdhci-pci 0000:03:00.1: enabling device (0000 -> 0002)
[    3.512438] mmc0: SDHCI controller on PCI [0000:03:00.1] using ADMA
[    3.524138] i915 0000:00:02.0: irq 53 for MSI/MSI-X
[    3.524150] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[    3.524151] [drm] Driver supports precise vblank timestamp query.
[    3.524158] i915 0000:00:02.0: Invalid ROM contents
[    3.524162] [drm] failed to find VBIOS tables
[    3.524486] vgaarb: device changed decodes:
PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem
[    3.524488] vgaarb: transferring owner from PCI:0000:00:02.0 to
PCI:0000:01:00.0
[    3.557336] [drm] failed to retrieve link info, disabling eDP
[    3.557787] ------------[ cut here ]------------
[    3.557805] WARNING: at drivers/gpu/drm/i915/intel_dp.c:1132
ironlake_panel_vdd_off_sync+0xef/0x100 [i915]()
[    3.557806] Hardware name: MacBookPro10,1
[    3.557807] Modules linked in: sdhci_pci sdhci mmc_core i915(+)
nouveau(+) mxm_wmi wmi ttm i2c_algo_bit drm_kms_helper drm i2c_core
video
[    3.557816] Pid: 172, comm: systemd-udevd Tainted: G        W
3.9.0-rc4+ #34
[    3.557817] Call Trace:
[    3.557822]  [<ffffffff81060b2f>] warn_slowpath_common+0x7f/0xc0
[    3.557825]  [<ffffffff81060b8a>] warn_slowpath_null+0x1a/0x20
[    3.557836]  [<ffffffffa01eb45f>]
ironlake_panel_vdd_off_sync+0xef/0x100 [i915]
[    3.557846]  [<ffffffffa01ec814>] intel_dp_encoder_destroy+0x64/0x70 [i915]
[    3.557856]  [<ffffffffa01ef716>] intel_dp_init_connector+0xaa6/0xac0 [i915]
[    3.557864]  [<ffffffffa002c3f2>] ? drm_modeset_unlock_all+0x52/0x60 [drm]
[    3.557874]  [<ffffffffa01ef836>] intel_dp_init+0x106/0x140 [i915]
[    3.557884]  [<ffffffffa01e3bf9>] intel_modeset_init+0xbf9/0xea0 [i915]
[    3.557894]  [<ffffffffa01b40e1>] i915_driver_load+0xb81/0xe30 [i915]
[    3.557901]  [<ffffffffa0028c16>] drm_get_pci_dev+0x186/0x2d0 [drm]
[    3.557904]  [<ffffffff810c4ffd>] ? trace_hardirqs_on+0xd/0x10
[    3.557913]  [<ffffffffa01af33c>] i915_pci_probe+0x3c/0x90 [i915]
[    3.557915]  [<ffffffff813300ab>] local_pci_probe+0x4b/0x80
[    3.557918]  [<ffffffff81330311>] pci_device_probe+0x111/0x120
[    3.557921]  [<ffffffff8141188b>] driver_probe_device+0x8b/0x390
[    3.557923]  [<ffffffff81411c3b>] __driver_attach+0xab/0xb0
[    3.557926]  [<ffffffff81411b90>] ? driver_probe_device+0x390/0x390
[    3.557928]  [<ffffffff8140f80d>] bus_for_each_dev+0x5d/0xa0
[    3.557930]  [<ffffffff814111ee>] driver_attach+0x1e/0x20
[    3.557933]  [<ffffffff81410d81>] bus_add_driver+0x121/0x2b0
[    3.557935]  [<ffffffffa0246000>] ? 0xffffffffa0245fff
[    3.557937]  [<ffffffff81412327>] driver_register+0x77/0x170
[    3.557939]  [<ffffffffa0246000>] ? 0xffffffffa0245fff
[    3.557941]  [<ffffffff8132f0a4>] __pci_register_driver+0x64/0x70
[    3.557946]  [<ffffffffa0028e7a>] drm_pci_init+0x11a/0x130 [drm]
[    3.557948]  [<ffffffffa0246000>] ? 0xffffffffa0245fff
[    3.557956]  [<ffffffffa0246066>] i915_init+0x66/0x68 [i915]
[    3.557959]  [<ffffffff8100215a>] do_one_initcall+0x12a/0x180
[    3.557962]  [<ffffffff810d10ce>] load_module+0x1c3e/0x27e0
[    3.557964]  [<ffffffff81324010>] ? ddebug_proc_open+0xd0/0xd0
[    3.557967]  [<ffffffff8131261e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[    3.557969]  [<ffffffff810d1d47>] sys_init_module+0xd7/0x120
[    3.557972]  [<ffffffff8168e3d9>] system_call_fastpath+0x16/0x1b
[    3.557973] ---[ end trace 6cad52bf765be3e1 ]---