WARNING: CPU: 4 PID: 863 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x88/0x90()

Commit Message

Daniel Vetter Sept. 23, 2015, 7:25 a.m. UTC

On Tue, Sep 22, 2015 at 04:54:54PM -0400, Alex Deucher wrote:
> On Tue, Sep 22, 2015 at 4:21 PM, Borislav Petkov <[e-mail]> wrote:
> > Hi Alex,
> >
> > On Tue, Sep 22, 2015 at 03:58:03PM -0400, Alex Deucher wrote:
> >> What system is this?
> >
> > my workstation - an
> >
> > "To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013"
> >
> > you gotta love the "To be filled" crap. In any case, it is an ASUS M5A97
> > EVO R2.0. RD890 chip AFAICT.
> >
> >> What GPU are you using?
> >
> > RV635. Here's some dmesg:
> >
> > [    6.489016] [drm] initializing kernel modesetting (RV635 0x1002:0x9598 0x1043:0x01DA).
> > [    7.509177] radeon 0000:01:00.0: VRAM: 512M 0x0000000000000000 - 0x000000001FFFFFFF (512M used)
> > [    7.518010] radeon 0000:01:00.0: GTT: 512M 0x0000000020000000 - 0x000000003FFFFFFF
> > [    7.525724] [drm] Detected VRAM RAM=512M, BAR=256M
> > [    7.530608] [drm] RAM width 128bits DDR
> > [    7.535168] [TTM] Zone  kernel: Available graphics memory: 8132226 kiB
> > [    7.541779] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
> > [    7.548420] [TTM] Initializing pool allocator
> > [    7.552896] [TTM] Initializing DMA pool allocator
> > [    7.558176] [drm] radeon: 512M of VRAM memory ready
> > [    7.563131] [drm] radeon: 512M of GTT memory ready.
> > [    7.568151] [drm] Loading RV635 Microcode
> > [    7.577382] [drm] Internal thermal controller without fan control
> > [    7.584349] [drm] radeon: power management initialized
> > [    7.590443] [drm] GART: num cpu pages 131072, num gpu pages 131072
> > [    7.597266] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
> > [    7.624386] [drm] PCIE GART of 512M enabled (table at 0x0000000000254000).
> > [    7.631544] radeon 0000:01:00.0: WB enabled
> > [    7.635794] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000020000c00 and cpu addr 0xffff880427ef7c00
> > [    7.647039] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x00000000000521d0 and cpu addr 0xffffc900008121d0
> > [    7.657924] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> > [    7.664601] [drm] Driver supports precise vblank timestamp query.
> > [    7.670780] radeon 0000:01:00.0: radeon: MSI limited to 32-bit
> > [    7.676801] radeon 0000:01:00.0: radeon: using MSI.
> > [    7.681863] [drm] radeon: irq initialized.
> > [    7.717757] [drm] ring test on 0 succeeded in 0 usecs
> > [    7.897466] [drm] ring test on 5 succeeded in 1 usecs
> > [    7.902585] [drm] UVD initialized successfully.
> > [    7.908108] [drm] ib test on ring 0 succeeded in 0 usecs
> > [    8.558968] [drm] ib test on ring 5 succeeded
> > [    8.568734] [drm] Radeon Display Connectors
> > [    8.573005] [drm] Connector 0:
> > [    8.576189] [drm]   DVI-I-1
> > [    8.579062] [drm]   HPD1
> > [    8.581657] [drm]   DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
> > [    8.589172] [drm]   Encoders:
> > [    8.592234] [drm]     DFP1: INTERNAL_UNIPHY
> > [    8.596492] [drm]     CRT2: INTERNAL_KLDSCP_DAC2
> > [    8.601182] [drm] Connector 1:
> > [    8.604302] [drm]   DIN-1
> > [    8.607012] [drm]   Encoders:
> > [    8.610043] [drm]     TV1: INTERNAL_KLDSCP_DAC2
> > [    8.614642] [drm] Connector 2:
> > [    8.617760] [drm]   DVI-I-2
> > [    8.620621] [drm]   HPD2
> > [    8.623226] [drm]   DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
> > [    8.630719] [drm]   Encoders:
> > [    8.633749] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
> > [    8.638436] [drm]     DFP2: INTERNAL_KLDSCP_LVTMA
> > [    8.719815] [drm] fb mappable at 0xC0355000
> > [    8.724089] [drm] vram apper at 0xC0000000
> > [    8.728243] [drm] size 9216000
> > [    8.731371] [drm] fb depth is 24
> > [    8.734664] [drm]    pitch is 7680
> > [    8.739009] fbcon: radeondrmfb (fb0) is primary device
> > [    8.802887] Console: switching to colour frame buffer device 240x75
> > [    8.818487] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
> > [    8.824948] radeon 0000:01:00.0: registered panic notifier
> > [    8.846452] [drm] Initialized radeon 2.42.0 20080528 for 0000:01:00.0 on minor 0
> >
> >> Can you bisect?
> >
> > It is my workstation so it will take longer but I'll try.
> >
> > If you can think of some particular commits I should try, let me know.
> 
> Sorry, I can't think of anything off hand.  I suspect it was some
> change or cleanup in the core drm code.

The locking check is new, but I was only adding locking checks, not yet
reworking the locking itself. So the backtrace is likely (but not 100%
guaranteed) a red herring.

Strange thing is that I've tested this on a radeon over here and I don't
see this backtrace ... wut. Below diff should appease the backtraces at
least.
-Daniel

Comments

Borislav Petkov Sept. 23, 2015, 8:59 a.m. UTC | #1

On Wed, Sep 23, 2015 at 09:25:23AM +0200, Daniel Vetter wrote:
> Strange thing is that I've tested this on a radeon over here and I don't
> see this backtrace ... wut. Below diff should appease the backtraces at
> least.

Doesn't look like it.

This is what it says when suspending:


[   42.962275] hib.sh (3269): drop_caches: 3
[   42.967671] PM: Hibernation mode set to 'shutdown'
[   42.979329] PM: Syncing filesystems ... done.
[   42.993401] Freezing user space processes ... (elapsed 0.002 seconds) done.
[   43.003632] PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
[   43.009840] PM: Marking nosave pages: [mem 0x0009e000-0x000fffff]
[   43.015991] PM: Marking nosave pages: [mem 0xba9b8000-0xbca4dfff]
[   43.022241] PM: Marking nosave pages: [mem 0xbca4f000-0xbcc54fff]
[   43.028357] PM: Marking nosave pages: [mem 0xbd083000-0xbd7f3fff]
[   43.034500] PM: Marking nosave pages: [mem 0xbd800000-0x100000fff]
[   43.041371] PM: Basic memory bitmaps created
[   43.045656] PM: Preallocating image memory... done (allocated 128867 pages)
[   43.346216] PM: Allocated 515468 kbytes in 0.29 seconds (1777.47 MB/s)
[   43.352759] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[   43.366104] ------------[ cut here ]------------
[   43.370746] WARNING: CPU: 4 PID: 55 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x88/0x90()
[   43.380681] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel ae
s_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 r
adeon acpi_cpufreq
[   43.403916] CPU: 4 PID: 55 Comm: kworker/u16:2 Not tainted 4.3.0-rc2+ #3
[   43.410633] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   43.420567] Workqueue: events_unbound async_run_entry_fn
[   43.425919]  ffffffff8194ff67 ffff88042a223b60 ffffffff812c758a 0000000000000000
[   43.433424]  ffff88042a223b98 ffffffff810534c1 ffff880429eca000 ffff880429fe9200
[   43.440959]  ffff880429de1000 0000000000000000 ffffffff819571c3 ffff88042a223ba8
[   43.448461] Call Trace:
[   43.450929]  [<ffffffff812c758a>] dump_stack+0x4e/0x84
[   43.456094]  [<ffffffff810534c1>] warn_slowpath_common+0x91/0xd0
[   43.462126]  [<ffffffff810535ba>] warn_slowpath_null+0x1a/0x20
[   43.467983]  [<ffffffff813bdc58>] drm_helper_choose_encoder_dpms+0x88/0x90
[   43.474884]  [<ffffffff813be0b6>] drm_helper_connector_dpms+0x56/0x110
[   43.481463]  [<ffffffffa003346b>] radeon_suspend_kms+0x6b/0x380 [radeon]
[   43.488196]  [<ffffffff816c0f2b>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
[   43.495020]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.500976]  [<ffffffffa00311ac>] radeon_pmops_freeze+0x1c/0x20 [radeon]
[   43.507730]  [<ffffffff8130feba>] pci_pm_freeze+0x6a/0x100
[   43.513241]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.519187]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   43.524959]  [<ffffffff8146f4a4>] __device_suspend+0x104/0x2c0
[   43.530818]  [<ffffffff8146f67f>] async_suspend+0x1f/0xa0
[   43.536242]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   43.542127]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   43.547984]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   43.554019]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   43.559530]  [<ffffffff8107e133>] ? preempt_count_sub+0xb3/0x110
[   43.565562]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   43.571603]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   43.576597]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.583152]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   43.588574]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.595170] ---[ end trace aab225b93a6f1dcc ]---
[   43.595235] ------------[ cut here ]------------
[   43.595240] WARNING: CPU: 5 PID: 55 at include/drm/drm_crtc.h:1577 drm_helper_choose_crtc_dpms+0x91/0xa0()
[   43.595267] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
[   43.595271] CPU: 5 PID: 55 Comm: kworker/u16:2 Tainted: G        W       4.3.0-rc2+ #3
[   43.595272] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   43.595276] Workqueue: events_unbound async_run_entry_fn
[   43.595281]  ffffffff8194ff67 ffff88042a223b60 ffffffff812c758a 0000000000000000
[   43.595286]  ffff88042a223b98 ffffffff810534c1 ffff880429eca000 ffff880429de1000
[   43.595291]  ffff880429de1000 0000000000000000 0000000000000003 ffff88042a223ba8
[   43.595293] Call Trace:
[   43.595295]  [<ffffffff812c758a>] dump_stack+0x4e/0x84
[   43.595298]  [<ffffffff810534c1>] warn_slowpath_common+0x91/0xd0
[   43.595300]  [<ffffffff810535ba>] warn_slowpath_null+0x1a/0x20
[   43.595303]  [<ffffffff813bdcf1>] drm_helper_choose_crtc_dpms+0x91/0xa0
[   43.595315]  [<ffffffffa003d860>] ? atombios_blank_crtc+0x140/0x140 [radeon]
[   43.595322]  [<ffffffff813be124>] drm_helper_connector_dpms+0xc4/0x110
[   43.595331]  [<ffffffffa003346b>] radeon_suspend_kms+0x6b/0x380 [radeon]
[   43.595334]  [<ffffffff816c0f2b>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
[   43.595337]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.595346]  [<ffffffffa00311ac>] radeon_pmops_freeze+0x1c/0x20 [radeon]
[   43.595349]  [<ffffffff8130feba>] pci_pm_freeze+0x6a/0x100
[   43.595351]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.595353]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   43.595356]  [<ffffffff8146f4a4>] __device_suspend+0x104/0x2c0
[   43.595358]  [<ffffffff8146f67f>] async_suspend+0x1f/0xa0
[   43.595361]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   43.595363]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   43.595366]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   43.595369]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   43.595373]  [<ffffffff8107e133>] ? preempt_count_sub+0xb3/0x110
[   43.595375]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   43.595378]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   43.595382]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.595385]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   43.595387]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.595390] ---[ end trace aab225b93a6f1dcd ]---
[   43.611465] ------------[ cut here ]------------
[   43.611469] WARNING: CPU: 5 PID: 55 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x88/0x90()
[   43.611494] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
[   43.611498] CPU: 5 PID: 55 Comm: kworker/u16:2 Tainted: G        W       4.3.0-rc2+ #3
[   43.611499] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   43.611503] Workqueue: events_unbound async_run_entry_fn
[   43.611508]  ffffffff8194ff67 ffff88042a223b60 ffffffff812c758a 0000000000000000
[   43.611516]  ffff88042a223b98 ffffffff810534c1 ffff880429eca000 ffff880429fe9e00
[   43.611520]  ffff880429de7000 0000000000000000 ffffffff819571c3 ffff88042a223ba8
[   43.611521] Call Trace:
[   43.611525]  [<ffffffff812c758a>] dump_stack+0x4e/0x84
[   43.611527]  [<ffffffff810534c1>] warn_slowpath_common+0x91/0xd0
[   43.611530]  [<ffffffff810535ba>] warn_slowpath_null+0x1a/0x20
[   43.611534]  [<ffffffff813bdc58>] drm_helper_choose_encoder_dpms+0x88/0x90
[   43.611537]  [<ffffffff813be0b6>] drm_helper_connector_dpms+0x56/0x110
[   43.611547]  [<ffffffffa003346b>] radeon_suspend_kms+0x6b/0x380 [radeon]
[   43.611551]  [<ffffffff816c0f2b>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
[   43.611554]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.611563]  [<ffffffffa00311ac>] radeon_pmops_freeze+0x1c/0x20 [radeon]
[   43.611566]  [<ffffffff8130feba>] pci_pm_freeze+0x6a/0x100
[   43.611569]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.611573]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   43.611575]  [<ffffffff8146f4a4>] __device_suspend+0x104/0x2c0
[   43.611578]  [<ffffffff8146f67f>] async_suspend+0x1f/0xa0
[   43.611580]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   43.611582]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   43.611585]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   43.611588]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   43.611592]  [<ffffffff8107e133>] ? preempt_count_sub+0xb3/0x110
[   43.611594]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   43.611599]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   43.611604]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.611607]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   43.611609]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.611612] ---[ end trace aab225b93a6f1dce ]---
[   43.611638] ------------[ cut here ]------------
[   43.611641] WARNING: CPU: 5 PID: 55 at include/drm/drm_crtc.h:1577 drm_helper_choose_crtc_dpms+0x91/0xa0()
[   43.611665] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
[   43.611670] CPU: 5 PID: 55 Comm: kworker/u16:2 Tainted: G        W       4.3.0-rc2+ #3
[   43.611670] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   43.611675] Workqueue: events_unbound async_run_entry_fn
[   43.611711]  ffffffff8194ff67 ffff88042a223b60 ffffffff812c758a 0000000000000000
[   43.611716]  ffff88042a223b98 ffffffff810534c1 ffff880429eca000 ffff880429de7000
[   43.611720]  ffff880429de7000 0000000000000000 0000000000000003 ffff88042a223ba8
[   43.611721] Call Trace:
[   43.611725]  [<ffffffff812c758a>] dump_stack+0x4e/0x84
[   43.611728]  [<ffffffff810534c1>] warn_slowpath_common+0x91/0xd0
[   43.611730]  [<ffffffff810535ba>] warn_slowpath_null+0x1a/0x20
[   43.611732]  [<ffffffff813bdcf1>] drm_helper_choose_crtc_dpms+0x91/0xa0
[   43.611742]  [<ffffffffa003d860>] ? atombios_blank_crtc+0x140/0x140 [radeon]
[   43.611747]  [<ffffffff813be124>] drm_helper_connector_dpms+0xc4/0x110
[   43.611756]  [<ffffffffa003346b>] radeon_suspend_kms+0x6b/0x380 [radeon]
[   43.611759]  [<ffffffff816c0f2b>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
[   43.611761]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.611771]  [<ffffffffa00311ac>] radeon_pmops_freeze+0x1c/0x20 [radeon]
[   43.611774]  [<ffffffff8130feba>] pci_pm_freeze+0x6a/0x100
[   43.611776]  [<ffffffff8130fe50>] ? pci_pm_poweroff+0x100/0x100
[   43.611778]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   43.611781]  [<ffffffff8146f4a4>] __device_suspend+0x104/0x2c0
[   43.611783]  [<ffffffff8146f67f>] async_suspend+0x1f/0xa0
[   43.611786]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   43.611788]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   43.611790]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   43.611793]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   43.611797]  [<ffffffff8107e133>] ? preempt_count_sub+0xb3/0x110
[   43.611800]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   43.611802]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   43.611807]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.611809]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   43.611812]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   43.611814] ---[ end trace aab225b93a6f1dcf ]---
[   44.409186] PM: freeze of devices complete after 1045.976 msecs
[   44.417505] PM: late freeze of devices complete after 2.393 msecs
[   44.427721] PM: noirq freeze of devices complete after 4.126 msecs
[   44.433913] Disabling non-boot CPUs ...
[   44.451184] smpboot: CPU 1 is now offline
[   44.498597] smpboot: CPU 2 is now offline
[   44.534426] smpboot: CPU 3 is now offline
[   44.574909] smpboot: CPU 4 is now offline
[   44.614270] smpboot: CPU 5 is now offline
[   44.652566] smpboot: CPU 6 is now offline
[   44.694825] smpboot: CPU 7 is now offline
[   44.711829] PM: Creating hibernation image:
[   45.179293] PM: Need to copy 138846 pages
[   45.183311] PM: Normal pages needed: 138846 + 1024, available pages: 4029960
[   45.898261] PM: Hibernation image created (138846 pages copied)
[   45.100717] LVT offset 0 assigned for vector 0x400
[   45.106190] Enabling non-boot CPUs ...
[   45.110174] x86: Booting SMP configuration:
[   45.114369] smpboot: Booting Node 0 Processor 1 APIC 0x11
[   45.141886]  cache: parent cpu1 should not be sleeping
[   45.148488] CPU1 is up
[   45.150958] smpboot: Booting Node 0 Processor 2 APIC 0x12
[   45.178801]  cache: parent cpu2 should not be sleeping
[   45.185799] CPU2 is up
[   45.188316] smpboot: Booting Node 0 Processor 3 APIC 0x13
[   45.215892]  cache: parent cpu3 should not be sleeping
[   45.222959] CPU3 is up
[   45.225467] smpboot: Booting Node 0 Processor 4 APIC 0x14
[   45.244730]  cache: parent cpu4 should not be sleeping
[   45.250525] CPU4 is up
[   45.252954] smpboot: Booting Node 0 Processor 5 APIC 0x15
[   45.273487]  cache: parent cpu5 should not be sleeping
[   45.279302] CPU5 is up
[   45.281722] smpboot: Booting Node 0 Processor 6 APIC 0x16
[   45.309551]  cache: parent cpu6 should not be sleeping
[   45.316600] CPU6 is up
[   45.319109] smpboot: Booting Node 0 Processor 7 APIC 0x17
[   45.344059]  cache: parent cpu7 should not be sleeping
[   45.351114] CPU7 is up
[   45.376664] PM: noirq thaw of devices complete after 2.185 msecs
[   45.384992] PM: early thaw of devices complete after 2.249 msecs
[   45.391875] rtc_cmos 00:03: System wakeup disabled by ACPI
[   45.393086] [drm] PCIE gen 2 link speeds already enabled
[   45.393444] serial 00:06: activated
[   45.396643] [drm] PCIE GART of 512M enabled (table at 0x0000000000254000).
[   45.396699] radeon 0000:01:00.0: WB enabled
[   45.396704] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000020000c00 and cpu addr 0xffff8804292eec00
[   45.397110] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x00000000000521d0 and cpu addr 0xffffc900008121d0
[   45.428076] [drm] ring test on 0 succeeded in 0 usecs
[   45.510492] r8169 0000:02:00.0 eth0: link down
[   45.602794] [drm] ring test on 5 succeeded in 1 usecs
[   45.602803] [drm] UVD initialized successfully.
[   45.603013] [drm] ib test on ring 0 succeeded in 0 usecs
[   45.710859] ata5: SATA link down (SStatus 0 SControl 300)
[   45.710907] ata6: SATA link down (SStatus 0 SControl 300)
[   45.882925] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[   45.882994] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[   45.883059] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[   45.883092] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[   45.884972] ata1.00: supports DRM functions and may not be fully accessible
[   45.885071] ata2.00: supports DRM functions and may not be fully accessible
[   45.885123] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1
[   45.885218] ata2.00: failed to get NCQ Send/Recv Log Emask 0x1
[   45.885907] ata1.00: supports DRM functions and may not be fully accessible
[   45.886024] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1
[   45.886068] ata2.00: supports DRM functions and may not be fully accessible
[   45.886110] ata1.00: configured for UDMA/133
[   45.886207] ata2.00: failed to get NCQ Send/Recv Log Emask 0x1
[   45.886417] ata2.00: configured for UDMA/133
[   45.896091] ata4.00: configured for UDMA/133
[   45.906938] ata3.00: configured for UDMA/133
[   45.907075] sd 2:0:0:0: [sdc] 1220942646 4096-byte logical blocks: (4.88 TB/4.54 TiB)
[   46.250991] [drm] ib test on ring 5 succeeded
[   46.644971] PM: thaw of devices complete after 1253.970 msecs
[   46.848000] usb 8-2: reset low-speed USB device number 2 using ohci-pci
[   47.084410] r8169 0000:02:00.0 eth0: link up
[   47.193411] PM: writing image.
[   47.203074] PM: Using 3 thread(s) for compression.
[   47.203074] PM: Compressing and saving image data (139118 pages)...
[   47.220107] PM: Image saving progress:   0%
[   47.356371] PM: Image saving progress:  10%
[   47.444633] PM: Image saving progress:  20%
[   47.586282] PM: Image saving progress:  30%
[   47.676366] PM: Image saving progress:  40%
[   47.751889] PM: Image saving progress:  50%
[   47.838831] PM: Image saving progress:  60%
[   47.927719] PM: Image saving progress:  70%
[   48.020115] PM: Image saving progress:  80%
[   48.107692] PM: Image saving progress:  90%
[   48.193569] PM: Image saving progress: 100%
[   48.199217] PM: Image saving done.
[   48.203784] PM: Wrote 556472 kbytes in 0.97 seconds (573.68 MB/s)
[   48.211456] PM: S|
[   48.311190] kvm: exiting hardware virtualization
[   48.321689] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0010 address=0x0000000020001000 flags=0x0000]
[   48.522749] sd 3:0:0:0: [sdd] Synchronizing SCSI cache
[   48.531044] sd 3:0:0:0: [sdd] Stopping disk
[   49.418426] sd 2:0:0:0: [sdc] Synchronizing SCSI cache
[   49.424890] sd 2:0:0:0: [sdc] Stopping disk
[   49.596437] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
[   49.605855] sd 1:0:0:0: [sdb] Stopping disk
[   49.920447] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[   49.929890] sd 0:0:0:0: [sda] Stopping disk
[   50.124196] pcieport 0000:00:04.0: System wakeup enabled by ACPI
[   50.152897] ACPI: Preparing to enter system sleep state S5
[   50.160275] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query honored via cmdline
[   50.170923] reboot: Power down
[   50.176837] acpi_power_off called


Then the resume kernel starts and loads the suspended one, which bombs
out completely:



[    5.758121] PM: Checking hibernation image partition /dev/sda1
[    5.764067] PM: Hibernation image partition 8:1 present
[    5.769372] PM: Looking for hibernation image.
[    5.769846] hid-generic 0003:04B4:0101.0003: input,hidraw2: USB HID v1.00 Device [DATACOMP SteelS????DATA] on usb-0000
:00:12.0-2/input1
[    5.788988] PM: Image signature found, resuming
[    5.795952] PM: Preparing processes for restore.
[    5.800605] Freezing user space processes ... (elapsed 0.000 seconds) done.
[    5.807811] PM: Loading hibernation image.
[    5.812211] PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
[    5.818339] PM: Marking nosave pages: [mem 0x0009e000-0x000fffff]
[    5.824462] PM: Marking nosave pages: [mem 0xba9b8000-0xbca4dfff]
[    5.830712] PM: Marking nosave pages: [mem 0xbca4f000-0xbcc54fff]
[    5.836844] PM: Marking nosave pages: [mem 0xbd083000-0xbd7f3fff]
[    5.843010] PM: Marking nosave pages: [mem 0xbd800000-0x100000fff]
[    5.849924] PM: Basic memory bitmaps created
[    5.869152] PM: Using 3 thread(s) for decompression.
[    5.869152] PM: Loading and decompressing image data (139118 pages)...
[    5.946421] PM: Image loading progress:   0%
[    6.241471] PM: Image loading progress:  10%
[    6.321625] PM: Image loading progress:  20%
[    6.362579] random: nonblocking pool is initialized
[    6.414363] PM: Image loading progress:  30%
[    6.495027] PM: Image loading progress:  40%
[    6.573551] PM: Image loading progress:  50%
[    6.654276] PM: Image loading progress:  60%
[    6.735344] PM: Image loading progress:  70%
[    6.810312] PM: Image loading progress:  80%
[    6.885237] PM: Image loading progress:  90%
[    6.963869] PM: Image loading progress: 100%
[    6.968292] PM: Image loading done.
[    6.971907] PM: Read 556472 kbytes in 1.08 seconds (515.25 MB/s)
[    6.981245] PM: Image successfully loaded
[    7.208118] PM: quiesce of devices complete after 221.517 msecs
[    7.215932] PM: late quiesce of devices complete after 1.806 msecs
[    7.236424] PM: noirq quiesce of devices complete after 14.231 msecs
[    7.242867] Disabling non-boot CPUs ...
[   44.968602] LVT offset 0 assigned for vector 0x400
[   44.973810] Enabling non-boot CPUs ...
[   44.977701] x86: Booting SMP configuration:
[   44.981885] smpboot: Booting Node 0 Processor 1 APIC 0x11
[   45.004260]  cache: parent cpu1 should not be sleeping
[   45.010101] CPU1 is up
[   45.012520] smpboot: Booting Node 0 Processor 2 APIC 0x12
[   45.036083]  cache: parent cpu2 should not be sleeping
[   45.041998] CPU2 is up
[   45.044429] smpboot: Booting Node 0 Processor 3 APIC 0x13
[   45.064873]  cache: parent cpu3 should not be sleeping
[   45.070712] CPU3 is up
[   45.073177] smpboot: Booting Node 0 Processor 4 APIC 0x14
[   45.092508]  cache: parent cpu4 should not be sleeping
[   45.098293] CPU4 is up
[   45.100772] smpboot: Booting Node 0 Processor 5 APIC 0x15
[   45.120788]  cache: parent cpu5 should not be sleeping
[   45.126577] CPU5 is up
[   45.128997] smpboot: Booting Node 0 Processor 6 APIC 0x16
[   45.149043]  cache: parent cpu6 should not be sleeping
[   45.154843] CPU6 is up
[   45.157261] smpboot: Booting Node 0 Processor 7 APIC 0x17
[   45.177371]  cache: parent cpu7 should not be sleeping
[   45.183182] CPU7 is up
[   45.195686] BUG: unable to handle kernel NULL pointer dereference at 0000000000000034
[   45.203696] IP: [<ffffffff81321296>] pci_restore_msi_state+0x196/0x240
[   45.210379] PGD 418009067 PUD 41800a067 PMD 0 
[   45.215023] Oops: 0000 [#1] PREEMPT SMP 
[   45.219132] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel ae
s_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 r
adeon acpi_cpufreq
[   45.242447] CPU: 2 PID: 804 Comm: kworker/u16:5 Tainted: G        W       4.3.0-rc2+ #3
[   45.250584] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   45.260630] Workqueue: events_unbound async_run_entry_fn
[   45.266105] task: ffff88042983df00 ti: ffff880428a40000 task.ti: ffff880428a40000
[   45.273724] RIP: 0010:[<ffffffff81321296>]  [<ffffffff81321296>] pci_restore_msi_state+0x196/0x240
[   45.282840] RSP: 0018:ffff880428a43c28  EFLAGS: 00010286
[   45.288292] RAX: 0000000000000000 RBX: ffff880429c2d000 RCX: 0000000000000000
[   45.295564] RDX: 0000000000000001 RSI: ffffffff81304448 RDI: ffffffff816c0f2b
[   45.302835] RBP: ffff880428a43c40 R08: 0000000000000001 R09: 0000000000522000
[   45.310114] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   45.317386] R13: ffff880429c2d7b0 R14: ffff880429c2d010 R15: ffff880429c2d038
[   45.324666] FS:  00007f653bc43700(0000) GS:ffff88042ca00000(0000) knlGS:0000000000000000
[   45.332898] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   45.338784] CR2: 0000000000000034 CR3: 0000000418053000 CR4: 00000000000406e0
[   45.346063] Stack:
[   45.348221]  0080002c29c2d7b0 0000000000000000 ffff880429c2d000 ffff880428a43c78
[   45.355822]  ffffffff8130c141 ffff880429c2d098 ffff880429c2d000 0000000000000000
[   45.363424]  ffff88042a1216e8 ffffffff81957114 ffff880428a43c88 ffffffff8130c2b8
[   45.371041] Call Trace:
[   45.373642]  [<ffffffff8130c141>] pci_restore_state.part.18+0xf1/0x250
[   45.380316]  [<ffffffff8130c2b8>] pci_restore_state+0x18/0x20
[   45.386209]  [<ffffffff8130f7fc>] pci_pm_restore_noirq+0x4c/0xd0
[   45.392367]  [<ffffffff8130f7b0>] ? pci_pm_freeze_noirq+0xf0/0xf0
[   45.398611]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   45.404531]  [<ffffffff8146eaa3>] device_resume_noirq+0x93/0x150
[   45.410682]  [<ffffffff8146eb7d>] async_resume_noirq+0x1d/0x50
[   45.416693]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   45.422669]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   45.428648]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   45.434804]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   45.440435]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   45.446590]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   45.451704]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   45.458376]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   45.463923]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   45.470587] Code: 66 89 4d ee 0f b7 c9 e8 79 41 fe ff 48 89 df e8 d1 7a ce ff 0f b6 53 4b 8b 73 38 48 8d 4d ee 48 8b 7b 10 83 c2 02 e8 1a 31 fe ff <41> 0f b6 4c 24 34 41 8b 54 24 30 be ff ff ff ff c0 e9 04 83 e1 
[   45.490744] RIP  [<ffffffff81321296>] pci_restore_msi_state+0x196/0x240
[   45.497522]  RSP <ffff880428a43c28>
[   45.501162] CR2: 0000000000000034
[   45.504630] ---[ end trace aab225b93a6f1dd0 ]---
[   45.509270] BUG: unable to handle kernel paging request at ffffffffffffff98
[   45.516436] IP: [<ffffffff81076770>] kthread_data+0x10/0x20
[   45.522180] PGD 19e5067 PUD 19e7067 PMD 0 
[   45.526512] Oops: 0000 [#2] PREEMPT SMP 
[   45.530628] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
[   45.553976] CPU: 2 PID: 804 Comm: kworker/u16:5 Tainted: G      D W       4.3.0-rc2+ #3
[   45.562132] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   45.572199] task: ffff88042983df00 ti: ffff880428a40000 task.ti: ffff880428a40000
[   45.579856] RIP: 0010:[<ffffffff81076770>]  [<ffffffff81076770>] kthread_data+0x10/0x20
[   45.588037] RSP: 0018:ffff880428a43928  EFLAGS: 00010002
[   45.593505] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
[   45.600794] RDX: 000000012b244210 RSI: 0000000000000002 RDI: ffff88042983df00
[   45.608083] RBP: ffff880428a43928 R08: ffff88042983df88 R09: ffff88042cbd5cb0
[   45.615371] R10: ffff88042983df60 R11: 0000000000000000 R12: 00000000001d5c00
[   45.622661] R13: ffff88042cbd5c18 R14: ffff88042983df00 R15: 0000000000000002
[   45.629949] FS:  00007f653bc43700(0000) GS:ffff88042ca00000(0000) knlGS:0000000000000000
[   45.638191] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   45.644094] CR2: 0000000000000028 CR3: 0000000418053000 CR4: 00000000000406e0
[   45.651389] Stack:
[   45.653565]  ffff880428a43940 ffffffff810707a1 ffff88042cbd5c00 ffff880428a43998
[   45.661185]  ffffffff816bb6e6 ffffffff81055b9b 0000000000000000 0000000000000000
[   45.668835]  ffff88042983df00 ffff880428a44000 ffff880428a439f0 0000000000000000
[   45.676453] Call Trace:
[   45.679064]  [<ffffffff810707a1>] wq_worker_sleeping+0x11/0x90
[   45.685062]  [<ffffffff816bb6e6>] __schedule+0x796/0xec0
[   45.690538]  [<ffffffff81055b9b>] ? do_exit+0x63b/0xac0
[   45.695930]  [<ffffffff816bbe9d>] schedule+0x3d/0x90
[   45.701060]  [<ffffffff81055c58>] do_exit+0x6f8/0xac0
[   45.706279]  [<ffffffff81007d8c>] oops_end+0x6c/0x90
[   45.711408]  [<ffffffff81045c13>] no_context+0x153/0x360
[   45.716875]  [<ffffffff81045f2b>] __bad_area_nosemaphore+0x10b/0x210
[   45.723385]  [<ffffffff812f3b77>] ? debug_smp_processor_id+0x17/0x20
[   45.729894]  [<ffffffff81046043>] bad_area_nosemaphore+0x13/0x20
[   45.736055]  [<ffffffff81046487>] __do_page_fault+0x1e7/0x360
[   45.741958]  [<ffffffff81000f70>] ? trace_hardirqs_off_thunk+0x17/0x19
[   45.748640]  [<ffffffff8104663c>] do_page_fault+0xc/0x10
[   45.754099]  [<ffffffff816c38af>] page_fault+0x1f/0x30
[   45.759386]  [<ffffffff81304448>] ? pci_bus_read_config_word+0x98/0xa0
[   45.766058]  [<ffffffff816c0f2b>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
[   45.772992]  [<ffffffff81321296>] ? pci_restore_msi_state+0x196/0x240
[   45.779581]  [<ffffffff81321296>] ? pci_restore_msi_state+0x196/0x240
[   45.786165]  [<ffffffff8130c141>] pci_restore_state.part.18+0xf1/0x250
[   45.792840]  [<ffffffff8130c2b8>] pci_restore_state+0x18/0x20
[   45.798732]  [<ffffffff8130f7fc>] pci_pm_restore_noirq+0x4c/0xd0
[   45.804886]  [<ffffffff8130f7b0>] ? pci_pm_freeze_noirq+0xf0/0xf0
[   45.811127]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   45.817019]  [<ffffffff8146eaa3>] device_resume_noirq+0x93/0x150
[   45.823173]  [<ffffffff8146eb7d>] async_resume_noirq+0x1d/0x50
[   45.829153]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   45.835132]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   45.841104]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   45.847248]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   45.852873]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   45.859018]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   45.864124]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   45.870796]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   45.876333]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   45.882998] Code: 60 74 0a 48 89 df e8 10 a8 64 00 eb d3 48 8b 53 48 eb b1 e8 33 cb fd ff 0f 1f 00 0f 1f 44 00 00 48 8b 87 f8 03 00 00 55 48 89 e5 <48> 8b 40 98 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 
[   45.903148] RIP  [<ffffffff81076770>] kthread_data+0x10/0x20
[   45.908972]  RSP <ffff880428a43928>
[   45.912612] CR2: ffffffffffffff98
[   45.916079] ---[ end trace aab225b93a6f1dd1 ]---
[   45.920697] Fixing recursive fault but reboot is needed!
[   45.926002] BUG: scheduling while atomic: kworker/u16:5/804/0x00000004
[   45.932529] INFO: lockdep is turned off.
[   45.936453] Modules linked in: binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd amd64_edac_mod k10temp fam15h_power edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
[   45.959455] irq event stamp: 2072
[   45.962766] hardirqs last  enabled at (2071): [<ffffffff816c0f45>] _raw_spin_unlock_irqrestore+0x65/0x80
[   45.972248] hardirqs last disabled at (2072): [<ffffffff816c3a80>] error_entry+0x60/0xb0
[   45.980342] softirqs last  enabled at (1792): [<ffffffff81058547>] __do_softirq+0x3a7/0x480
[   45.988705] softirqs last disabled at (1765): [<ffffffff81058798>] irq_exit+0x88/0xb0
[   45.996539] Preemption disabled at:[<ffffffff81007d8c>] oops_end+0x6c/0x90
[   46.003420] 
[   46.004913] CPU: 2 PID: 804 Comm: kworker/u16:5 Tainted: G      D W       4.3.0-rc2+ #3
[   46.012911] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97 EVO R2.0, BIOS 1503 01/16/2013
[   46.022823]  00000000001d5c00 ffff880428a43628 ffffffff812c758a ffff88042983df00
[   46.030280]  ffff880428a43640 ffffffff8107d528 ffff88042cbd5c00 ffff880428a43698
[   46.037740]  ffffffff816bb84f ffff880428a436b0 ffffffff81126b16 0000000000000008
[   46.045193] Call Trace:
[   46.047641]  [<ffffffff812c758a>] dump_stack+0x4e/0x84
[   46.052779]  [<ffffffff8107d528>] __schedule_bug+0x68/0xc0
[   46.058264]  [<ffffffff816bb84f>] __schedule+0x8ff/0xec0
[   46.063569]  [<ffffffff81126b16>] ? printk+0x48/0x50
[   46.068535]  [<ffffffff816bbe9d>] schedule+0x3d/0x90
[   46.073500]  [<ffffffff81055e38>] do_exit+0x8d8/0xac0
[   46.078580]  [<ffffffff810b6d75>] ? kmsg_dump+0x135/0x180
[   46.083978]  [<ffffffff810b6c62>] ? kmsg_dump+0x22/0x180
[   46.089291]  [<ffffffff81007d8c>] oops_end+0x6c/0x90
[   46.094257]  [<ffffffff81045c13>] no_context+0x153/0x360
[   46.099571]  [<ffffffff812d47a4>] ? delay_tsc+0x94/0xc0
[   46.104796]  [<ffffffff81045f2b>] __bad_area_nosemaphore+0x10b/0x210
[   46.111149]  [<ffffffff81046043>] bad_area_nosemaphore+0x13/0x20
[   46.117154]  [<ffffffff81046487>] __do_page_fault+0x1e7/0x360
[   46.122901]  [<ffffffff81000f70>] ? trace_hardirqs_off_thunk+0x17/0x19
[   46.129427]  [<ffffffff8104663c>] do_page_fault+0xc/0x10
[   46.134740]  [<ffffffff816c38af>] page_fault+0x1f/0x30
[   46.139879]  [<ffffffff81076770>] ? kthread_data+0x10/0x20
[   46.145364]  [<ffffffff810707a1>] wq_worker_sleeping+0x11/0x90
[   46.151197]  [<ffffffff816bb6e6>] __schedule+0x796/0xec0
[   46.156510]  [<ffffffff81055b9b>] ? do_exit+0x63b/0xac0
[   46.161736]  [<ffffffff816bbe9d>] schedule+0x3d/0x90
[   46.166702]  [<ffffffff81055c58>] do_exit+0x6f8/0xac0
[   46.171754]  [<ffffffff81007d8c>] oops_end+0x6c/0x90
[   46.176721]  [<ffffffff81045c13>] no_context+0x153/0x360
[   46.182033]  [<ffffffff81045f2b>] __bad_area_nosemaphore+0x10b/0x210
[   46.188385]  [<ffffffff812f3b77>] ? debug_smp_processor_id+0x17/0x20
[   46.194730]  [<ffffffff81046043>] bad_area_nosemaphore+0x13/0x20
[   46.200736]  [<ffffffff81046487>] __do_page_fault+0x1e7/0x360
[   46.206481]  [<ffffffff81000f70>] ? trace_hardirqs_off_thunk+0x17/0x19
[   46.213008]  [<ffffffff8104663c>] do_page_fault+0xc/0x10
[   46.218320]  [<ffffffff816c38af>] page_fault+0x1f/0x30
[   46.223461]  [<ffffffff81304448>] ? pci_bus_read_config_word+0x98/0xa0
[   46.229986]  [<ffffffff816c0f2b>] ? _raw_spin_unlock_irqrestore+0x4b/0x80
[   46.236772]  [<ffffffff81321296>] ? pci_restore_msi_state+0x196/0x240
[   46.243212]  [<ffffffff81321296>] ? pci_restore_msi_state+0x196/0x240
[   46.249649]  [<ffffffff8130c141>] pci_restore_state.part.18+0xf1/0x250
[   46.256177]  [<ffffffff8130c2b8>] pci_restore_state+0x18/0x20
[   46.261922]  [<ffffffff8130f7fc>] pci_pm_restore_noirq+0x4c/0xd0
[   46.267928]  [<ffffffff8130f7b0>] ? pci_pm_freeze_noirq+0xf0/0xf0
[   46.274022]  [<ffffffff8146e7e7>] dpm_run_callback+0x77/0x2a0
[   46.279768]  [<ffffffff8146eaa3>] device_resume_noirq+0x93/0x150
[   46.285773]  [<ffffffff8146eb7d>] async_resume_noirq+0x1d/0x50
[   46.291606]  [<ffffffff81078a06>] async_run_entry_fn+0x46/0xf0
[   46.297439]  [<ffffffff8106f548>] process_one_work+0x1f8/0x640
[   46.303271]  [<ffffffff8106f4a4>] ? process_one_work+0x154/0x640
[   46.309278]  [<ffffffff8106f9db>] worker_thread+0x4b/0x440
[   46.314762]  [<ffffffff8106f990>] ? process_one_work+0x640/0x640
[   46.320761]  [<ffffffff81075e86>] kthread+0xf6/0x110
[   46.325726]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0
[   46.332251]  [<ffffffff816c1e3f>] ret_from_fork+0x3f/0x70
[   46.337644]  [<ffffffff81075d90>] ? kthread_create_on_node+0x1f0/0x1f0

Thanks.

Patch

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index d8319dae8358..9f05de73ae97 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1734,9 +1734,11 @@  int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
 	if (fbcon) {
 		drm_helper_resume_force_mode(dev);
 		/* turn on display hw */
+		drm_modeset_lock_all(dev);
 		list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
 		}
+		drm_modeset_unlock_all(dev);
 	}
 
 	drm_kms_helper_poll_enable(dev);