[Bug 105711] New: amdgpu: no monitor signal and kernel panic

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=105711

            Bug ID: 105711
           Summary: amdgpu: no monitor signal and kernel panic
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.3-rc4
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: polynomial-c at gmx.de
        Regression: No

Created attachment 189801
  --> https://bugzilla.kernel.org/attachment.cgi?id=189801&action=edit
kernel dmesg output

As soon as the driver gets loaded the monitor looses the signal and doesn't get
it back. After a while the kernel panics so even network connections get lost:


[  751.713493] Task dump for CPU 7:
[  751.713496] modprobe        R  running task        0  2994   2968 0x0000000a
[  751.713506]  ffff88063a72ae00 ffffffff818809f9 ffff88063a72ae00
0000000000000007
[  751.713513]  ffff88063a72ae00 0000000000000000 ffff8800a6658000
00000000ffffffff
[  751.713519]  0000000000000000 ffff8800a6658000 ffff880634b20000
ffffffff818814b2
[  751.713525] Call Trace:
[  751.713532]  [<ffffffff818809f9>] ? 0xffffffff818809f9
[  751.713536]  [<ffffffff818814b2>] ? 0xffffffff818814b2
[  751.713539]  [<ffffffff81885180>] ? 0xffffffff81885180
[  751.713543]  [<ffffffffa00232ca>] ? 0xffffffffa00232ca
[  751.713547]  [<ffffffff814f6c8c>] ? 0xffffffff814f6c8c
[  751.713550]  [<ffffffffa005933c>] ? 0xffffffffa005933c
[  751.713553]  [<ffffffffa005c69e>] ? 0xffffffffa005c69e
[  751.713557]  [<ffffffffa0018cba>] ? 0xffffffffa0018cba
[  751.713560]  [<ffffffffa001a5c1>] ? 0xffffffffa001a5c1
[  751.713563]  [<ffffffff815c7893>] ? 0xffffffff815c7893
[  751.713566]  [<ffffffff815c9589>] ? 0xffffffff815c9589
[  751.713569]  [<ffffffff81526b58>] ? 0xffffffff81526b58
[  751.713572]  [<ffffffff81526abf>] ? 0xffffffff81526abf
[  751.713575]  [<ffffffff81527193>] ? 0xffffffff81527193
[  751.713578]  [<ffffffff815e4334>] ? 0xffffffff815e4334
[  751.713581]  [<ffffffff815e458d>] ? 0xffffffff815e458d
[  751.713584]  [<ffffffff815e4500>] ? 0xffffffff815e4500
[  751.713586]  [<ffffffff815e2585>] ? 0xffffffff815e2585
[  751.713589]  [<ffffffff815e3af1>] ? 0xffffffff815e3af1
[  751.713592]  [<ffffffffa0088000>] ? 0xffffffffa0088000
[  751.713595]  [<ffffffff815e4b42>] ? 0xffffffff815e4b42
[  751.713598]  [<ffffffffa0088000>] ? 0xffffffffa0088000
[  751.713601]  [<ffffffff8100036b>] ? 0xffffffff8100036b
[  751.713604]  [<ffffffff8113065c>] ? 0xffffffff8113065c
[  751.713607]  [<ffffffff810fb8d4>] ? 0xffffffff810fb8d4
[  751.713610]  [<ffffffff810f94d0>] ? 0xffffffff810f94d0
[  751.713615]  [<ffffffff810fbe42>] ? 0xffffffff810fbe42
[  751.713618]  [<ffffffff81884697>] ? 0xffffffff81884697
[  751.713626] rcu_preempt kthread starved for 24577 jiffies! g2247 c2246 f0x0
s3 ->state=0x0


Same problem happens with vanilla kernel-4.2.3

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