Re: intel_sdvo_init: trying to register non-static key

[Imre Deak <imre.deak@intel.com>]

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On Fri, 2014-02-07 at 13:04 +0200, Jani Nikula wrote:
> Imre, is this the same i2c_del_adapter issue you're looking at? Any
> patches to try yet?

It looks like the same issue yes. The following patch fixed it for me:

http://patchwork.freedesktop.org/patch/18698/

I'm working on an improved version of this, but the main thing - to
remove the connector's sysfs entries before actually destroying the
encoder and connector objects - will remain the same as in the above
patch.

--Imre

> 
> BR,
> Jani.
> 
> 
> On Fri, 07 Feb 2014, Borislav Petkov <bp@alien8.de> wrote:
> > Hi guys,
> >
> > so I'm seeing this on rc1 + tip during boot:
> >
> > [    0.558106] Linux agpgart interface v0.103
> > [    0.558283] [drm] Initialized drm 1.1.0 20060810
> > [    0.562280] [drm] Memory usable by graphics device = 2048M
> > [    0.632301] i915 0000:00:02.0: irq 42 for MSI/MSI-X
> > [    0.632401] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> > [    0.632485] [drm] Driver supports precise vblank timestamp query.
> > [    0.633200] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> > [    0.655917] INFO: trying to register non-static key.
> > [    0.656003] the code is fine but needs lockdep annotation.
> > [    0.656083] turning off the locking correctness validator.
> > [    0.656165] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc1+ #1
> > [    0.656248] Hardware name: LENOVO 2320CTO/2320CTO, BIOS G2ET86WW (2.06 ) 11/13/2012
> > [    0.656348]  ffff880213ca8000 ffff880213d01518 ffffffff8160ffa8 ffffffff810ad3c1
> > [    0.656641]  ffff8800cabc7560 ffff880213d01618 ffffffff8109e7c7 ffff880213ca8000
> > [    0.656929]  ffff880213ca8780 0000000000000000 0000000000000000 ffff880200000000
> > [    0.657216] Call Trace:
> > [    0.657295]  [<ffffffff8160ffa8>] dump_stack+0x4f/0x7c
> > [    0.657378]  [<ffffffff810ad3c1>] ? console_unlock+0x2a1/0x450
> > [    0.657465]  [<ffffffff8109e7c7>] __lock_acquire+0x1b57/0x1d50
> > [    0.657551]  [<ffffffff8109f8b4>] ? mark_held_locks+0x74/0x140
> > [    0.657637]  [<ffffffff8109fbfe>] ? debug_check_no_locks_freed+0x8e/0x160
> > [    0.657724]  [<ffffffff8109ae23>] ? lockdep_init_map+0xb3/0x570
> > [    0.657809]  [<ffffffff8109fa9d>] ? trace_hardirqs_on_caller+0x11d/0x1e0
> > [    0.657897]  [<ffffffff811fb0f8>] ? kernfs_addrm_finish+0x38/0x60
> > [    0.657982]  [<ffffffff8109efd7>] lock_acquire+0x87/0x130
> > [    0.658062]  [<ffffffff811fb0f8>] ? kernfs_addrm_finish+0x38/0x60
> > [    0.658148]  [<ffffffff811fa8fe>] kernfs_deactivate+0x10e/0x150
> > [    0.658232]  [<ffffffff811fb0f8>] ? kernfs_addrm_finish+0x38/0x60
> > [    0.658318]  [<ffffffff811fb0f8>] kernfs_addrm_finish+0x38/0x60
> > [    0.658404]  [<ffffffff811fb358>] kernfs_remove_by_name_ns+0x58/0xb0
> > [    0.658490]  [<ffffffff811f8fd1>] remove_files.isra.1+0x41/0x80
> > [    0.658574]  [<ffffffff811f92d0>] sysfs_remove_group+0x50/0xb0
> > [    0.658659]  [<ffffffff811f936b>] sysfs_remove_groups+0x3b/0x60
> > [    0.658746]  [<ffffffff81417ecb>] device_remove_attrs+0x5b/0x80
> > [    0.658832]  [<ffffffff814185a5>] device_del+0x125/0x1c0
> > [    0.658915]  [<ffffffff81418656>] device_unregister+0x16/0x30
> > [    0.659000]  [<ffffffff814e89da>] i2c_del_adapter+0x1ba/0x270
> > [    0.659086]  [<ffffffff813ea916>] intel_sdvo_init+0x1f6/0x820
> > [    0.659172]  [<ffffffff8161c641>] ? preempt_count_sub+0xb1/0x100
> > [    0.659258]  [<ffffffff816184ab>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
> > [    0.659347]  [<ffffffff81406823>] ? gen6_read32+0x63/0x170
> > [    0.659431]  [<ffffffff813d260d>] intel_modeset_init+0xb3d/0x1010
> > [    0.659519]  [<ffffffff813f5539>] ? intel_power_domains_init_hw+0xa9/0x110
> > [    0.659606]  [<ffffffff813978cf>] i915_driver_load+0xd5f/0xeb0
> > [    0.659692]  [<ffffffff8137d58a>] drm_dev_register+0x8a/0x190
> > [    0.659777]  [<ffffffff8137fc99>] drm_get_pci_dev+0xf9/0x230
> > [    0.659861]  [<ffffffff81393ccb>] i915_pci_probe+0x3b/0x60
> > [    0.659945]  [<ffffffff812d385e>] local_pci_probe+0x4e/0xa0
> > [    0.660029]  [<ffffffff81417699>] ? get_device+0x19/0x20
> > [    0.660110]  [<ffffffff812d4cb1>] pci_device_probe+0xe1/0x130
> > [    0.660194]  [<ffffffff8141c00b>] driver_probe_device+0x7b/0x240
> > [    0.660279]  [<ffffffff8141c27b>] __driver_attach+0xab/0xb0
> > [    0.660363]  [<ffffffff8141c1d0>] ? driver_probe_device+0x240/0x240
> > [    0.660448]  [<ffffffff8141a35e>] bus_for_each_dev+0x5e/0x90
> > [    0.660532]  [<ffffffff8141bb1e>] driver_attach+0x1e/0x20
> > [    0.660615]  [<ffffffff8141b697>] bus_add_driver+0x117/0x230
> > [    0.660698]  [<ffffffff8141c974>] driver_register+0x64/0xf0
> > [    0.660780]  [<ffffffff812d3bf4>] __pci_register_driver+0x64/0x70
> > [    0.660869]  [<ffffffff81d34280>] ? ftrace_define_fields_drm_vblank_event+0x6d/0x6d
> > [    0.660970]  [<ffffffff8137fee5>] drm_pci_init+0x115/0x130
> > [    0.661054]  [<ffffffff81d34280>] ? ftrace_define_fields_drm_vblank_event+0x6d/0x6d
> > [    0.661157]  [<ffffffff81d342ea>] i915_init+0x6a/0x6c
> > [    0.661241]  [<ffffffff8100027e>] do_one_initcall+0x4e/0x170
> > [    0.661328]  [<ffffffff81070800>] ? parse_args+0xb0/0x360
> > [    0.661412]  [<ffffffff81cf9fbe>] kernel_init_freeable+0x106/0x19a
> > [    0.661497]  [<ffffffff81cf983b>] ? do_early_param+0x86/0x86
> > [    0.661580]  [<ffffffff81606bf0>] ? rest_init+0xd0/0xd0
> > [    0.661663]  [<ffffffff81606bfe>] kernel_init+0xe/0x130
> > [    0.661746]  [<ffffffff81620cec>] ret_from_fork+0x7c/0xb0
> > [    0.661828]  [<ffffffff81606bf0>] ? rest_init+0xd0/0xd0
> > [    0.747947] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
> > [    0.758745] fbcon: inteldrmfb (fb0) is primary device
> >
> > -- 
> > Regards/Gruss,
> >     Boris.
> >
> > Sent from a fat crate under my desk. Formatting is fine.
> > --
> 


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