[Bug 101049] New: [[IVB]][bisected] Freeze when booting with kernel 4.9 and later

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101049

            Bug ID: 101049
           Summary: [[IVB]][bisected] Freeze when booting with kernel 4.9
                    and later
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: hisele at siduge.v0yd.nl
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

With kernels after 4.9 my system completely freezes after some seconds while
starting X. With gdm it happens after after clicking on the user to login, but
in most cases only the mouse is drawn.
I'm using a Radeon R9 390 together with the HD Graphics 4000 in the i7 3700k
and found this bug when trying to use the integraded graphics. The bug appears
only on kernel 4.9 and later and the integrated graphics has to be choosen as
primary graphics in the BIOS. I'm surprised nobody reported this bug so far
since it's quite a long time in the stable kernel now, maybe it only occurs
with this specific setup, I didn't try it without the AMD card so far.

The bug is reproducible with the drm-tip branch and after bisecting I found
commit 29ecd78d3b79746fc837b820accb062f6433d5fb to be the problem, with this
one reverted the problem was gone.

I also tried to get some kernel logs, but this bug completely freezes the
system, not even the reset button works anymore and after rebooting there were
no signs of the crash.

Here's some information about my system:

Motherboard: Biostar H77MU3

lspci:
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor
DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor
PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen
Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family
USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset
Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB
Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High
Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express
Root Port 1 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB
Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation H77 Express Chipset LPC Controller (rev
04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset Family
6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller
(rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Hawaii PRO [Radeon R9 290/390] (rev 80)
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii HDMI Audio
[Radeon R9 290/290X / 390/390X]
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
PCI Express Gigabit Ethernet Controller (rev 06)

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