[Bug 103031] screen gets blank randomly since update rc4->rc6

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=103031

onorua <onorua at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|4.2.0-rc6                   |4.2.0-rc6 - 4.2.0
         Regression|No                          |Yes

--- Comment #2 from onorua <onorua at gmail.com> ---
Guys, this happened on all rc* since rc3 and it's even in 4.2.0:
=============
Sep  3 17:37:47 x kernel: cfg80211: Found new beacon on frequency: 5805 MHz (Ch
161) on phy0
Sep  3 17:37:47 x kernel: ------------[ cut here ]------------
Sep  3 17:37:47 x kernel: WARNING: CPU: 3 PID: 0 at
drivers/gpu/drm/i915/intel_uncore.c:620 hsw_unclaimed_reg_debug+0x68/0x81()
Sep  3 17:37:47 x kernel: Unclaimed register detected before reading register
0x223a0
Sep  3 17:37:47 x kernel: Modules linked in: ccm xt_conntrack ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
xt_addrtype iptable_filter ip_tables x_tables br_netfilter nf_nat nf_conntrack
bridge stp llc vboxpci(O) vboxnetadp(O) vboxnetflt(O) overlay vboxdrv(O)
uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core arc4 btusb btrtl
btbcm btintel coretemp intel_powerclamp kvm_intel iwlmvm mac80211 kvm iwlwifi
psmouse cfg80211 sg snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel
snd_hda_codec snd_hwdep snd_hda_core tpm_tis tpm battery ac thinkpad_acpi hwmon
acpi_call(O) ipv6 xhci_pci e1000e ptp pps_core xhci_hcd
Sep  3 17:37:47 x kernel: CPU: 3 PID: 0 Comm: swapper/3 Tainted: G        W  O 
  4.2.0 #77
Sep  3 17:37:47 x kernel: Hardware name: LENOVO 20BSCTO1WW/20BSCTO1WW, BIOS
N14ET28W (1.06 ) 03/12/2015
Sep  3 17:37:47 x kernel: 0000000000000000 e2f5b4143be5f0e2 ffff88022dd83c88
ffffffff8168a67d
Sep  3 17:37:47 x kernel: 0000000000000000 ffff88022dd83ce0 ffff88022dd83cc8
ffffffff810464bb
Sep  3 17:37:47 x kernel: 0000000000000000 ffffffff8140c5af ffff8800ba7e0000
00000000000223a0
Sep  3 17:37:47 x kernel: Call Trace:
Sep  3 17:37:47 x kernel: <IRQ>  [<ffffffff8168a67d>] dump_stack+0x4f/0x7b
Sep  3 17:37:47 x kernel: [<ffffffff810464bb>] warn_slowpath_common+0x9b/0xb5
Sep  3 17:37:47 x kernel: [<ffffffff8140c5af>] ?
hsw_unclaimed_reg_debug+0x68/0x81
Sep  3 17:37:47 x kernel: [<ffffffff8104652a>] warn_slowpath_fmt+0x55/0x6b
Sep  3 17:37:47 x kernel: [<ffffffff81074e54>] ? load_balance+0x1a6/0x880
Sep  3 17:37:47 x kernel: [<ffffffff8140c5af>]
hsw_unclaimed_reg_debug+0x68/0x81
Sep  3 17:37:47 x kernel: [<ffffffff81410e4f>] gen6_read32+0x50/0x167
Sep  3 17:37:47 x kernel: [<ffffffff814054e9>] intel_lrc_irq_handler+0x39/0x199
Sep  3 17:37:47 x kernel: [<ffffffff813fd3bc>] gen8_gt_irq_handler+0x7a/0x1d5
Sep  3 17:37:47 x kernel: [<ffffffff813fd585>] gen8_irq_handler+0x6e/0x3d6
Sep  3 17:37:47 x kernel: [<ffffffff8108d4b9>]
handle_irq_event_percpu+0x48/0x19c
Sep  3 17:37:47 x kernel: [<ffffffff8108d651>] handle_irq_event+0x44/0x67
Sep  3 17:37:47 x kernel: [<ffffffff8102f951>] ? apic_ack_edge+0x37/0x3b
Sep  3 17:37:47 x kernel: [<ffffffff81090479>] handle_edge_irq+0xf5/0x118
Sep  3 17:37:47 x kernel: [<ffffffff810054f7>] handle_irq+0x24/0x2a
Sep  3 17:37:47 x kernel: [<ffffffff812e5297>] ?
debug_smp_processor_id+0x17/0x19
Sep  3 17:37:47 x kernel: [<ffffffff81693da8>] do_IRQ+0x58/0xe5
Sep  3 17:37:47 x kernel: [<ffffffff81692268>] common_interrupt+0x68/0x68
Sep  3 17:37:47 x kernel: <EOI>  [<ffffffff8153cc91>] ?
cpuidle_enter_state+0x11b/0x1f8
Sep  3 17:37:47 x kernel: [<ffffffff8153cc56>] ? cpuidle_enter_state+0xe0/0x1f8
Sep  3 17:37:47 x kernel: [<ffffffff8153cd9a>] cpuidle_enter+0x17/0x19
Sep  3 17:37:47 x kernel: [<ffffffff8107b1bc>] call_cpuidle+0x50/0x52
Sep  3 17:37:47 x kernel: [<ffffffff8153cd81>] ? cpuidle_select+0x13/0x15
Sep  3 17:37:47 x kernel: [<ffffffff8107b3d9>] cpu_startup_entry+0x21b/0x308
Sep  3 17:37:47 x kernel: [<ffffffff8102c566>] start_secondary+0x162/0x18f
Sep  3 17:37:47 x kernel: ---[ end trace 70e4fd21493d110b ]---
Sep  3 17:37:51 x kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Sep  3 17:38:18 x kernel: cfg80211: Found new beacon on frequency: 2472 MHz (Ch
13) on phy0
====================

maybe somebody could take a look here?

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