[Bug 83338] [BYT/BDW]igt/gem_workarounds some subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83338

Rodrigo Vivi <rodrigo.vivi at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|intel-gfx-bugs at lists.freede |rodrigo.vivi at gmail.com
                   |sktop.org                   |

--- Comment #4 from Rodrigo Vivi <rodrigo.vivi at gmail.com> ---
Actually it isn't gone, but the message is different and shows exactly what
register we shouldn't be touching and when:

[   62.556252] [drm:hsw_disable_pc8] Disabling package C8+
[   62.556254] ------------[ cut here ]------------
[   62.556274] WARNING: CPU: 3 PID: 4192 at
drivers/gpu/drm/i915/intel_uncore.c:525
hsw_unclaimed_reg_debug.isra.11+0x62/0x72 [i915]()
[   62.556275] Unclaimed register detected before reading register 0x130040
[   62.556291] Modules linked in: ip6table_filter ip6_tables ipv6
iptable_filter ip_tables ebtable_nat ebtables x_tables iTCO_wdt
iTCO_vendor_support ppdev dm_mod snd_hda_codec_hdmi pcspkr i2c_i801
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm lpc_ich
mfd_core snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq
i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
[   62.556294] CPU: 3 PID: 4192 Comm: kworker/u16:19 Not tainted
3.17.0-rc6_drm-intel-nightly_0f7cc1_20140925+ #2780
[   62.556300] Workqueue: events_unbound async_run_entry_fn
[   62.556303]  0000000000000000 0000000000000009 ffffffff8178025c
ffff88000267fc38
[   62.556306]  ffffffff8103a8ec ffff880143c4a800 ffffffffa00b9500
ffffffffa007d500
[   62.556309]  ffff880002e30060 0000000000130040 ffff880002e30068
ffff880002e30060
[   62.556309] Call Trace:
[   62.556315]  [<ffffffff8178025c>] ? dump_stack+0x41/0x51
[   62.556319]  [<ffffffff8103a8ec>] ? warn_slowpath_common+0x78/0x90
[   62.556335]  [<ffffffffa00b9500>] ?
hsw_unclaimed_reg_debug.isra.11+0x62/0x72 [i915]
[   62.556343]  [<ffffffffa007d500>] ? i915_drm_thaw_early+0x35/0x56 [i915]
[   62.556346]  [<ffffffff8103a99c>] ? warn_slowpath_fmt+0x45/0x4a
[   62.556357]  [<ffffffffa00b9500>] ?
hsw_unclaimed_reg_debug.isra.11+0x62/0x72 [i915]
[   62.556367]  [<ffffffffa00b9658>] ? gen6_read32+0x47/0x101 [i915]
[   62.556374]  [<ffffffffa007d500>] ? i915_drm_thaw_early+0x35/0x56 [i915]
[   62.556387]  [<ffffffffa00cd0f7>] ? hsw_disable_pc8+0x3f/0x2cd [i915]
[   62.556394]  [<ffffffffa007d500>] ? i915_drm_thaw_early+0x35/0x56 [i915]
[   62.556401]  [<ffffffffa007ce87>] ? intel_resume_prepare+0x5d/0x590 [i915]
[   62.556408]  [<ffffffffa007d567>] ? i915_resume_early+0x3d/0x3d [i915]
[   62.556415]  [<ffffffffa007d4e0>] ? i915_drm_thaw_early+0x15/0x56 [i915]
[   62.556418]  [<ffffffff813e4620>] ? dpm_run_callback+0x57/0xcf
[   62.556420]  [<ffffffff813e4d8e>] ? device_resume_early+0x131/0x173
[   62.556423]  [<ffffffff813e5034>] ? async_resume_early+0x14/0x38
[   62.556425]  [<ffffffff810512a3>] ? async_run_entry_fn+0x55/0x10b
[   62.556428]  [<ffffffff8104ba25>] ? process_one_work+0x1ae/0x31c
[   62.556430]  [<ffffffff8104be0d>] ? worker_thread+0x255/0x350
[   62.556433]  [<ffffffff8104bbb8>] ? process_scheduled_works+0x25/0x25
[   62.556434]  [<ffffffff8104f5fe>] ? kthread+0xc5/0xcd
[   62.556437]  [<ffffffff8104f539>] ? kthread_freezable_should_stop+0x40/0x40
[   62.556439]  [<ffffffff81785bec>] ? ret_from_fork+0x7c/0xb0
[   62.556441]  [<ffffffff8104f539>] ? kthread_freezable_should_stop+0x40/0x40
[   62.556442] ---[ end trace d94d76f83f485195 ]---

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