[Bug 78661] New: GPU sometimes locks up after boot and/or resume

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https://bugzilla.kernel.org/show_bug.cgi?id=78661

            Bug ID: 78661
           Summary: GPU sometimes locks up after boot and/or resume
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.15.1
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: madigens@gmail.com
        Regression: No

I've been getting these hangs since at least 3.13.x on Ubuntu 14.04, but I
remember getting them before that, too.

It doesn't always happen, mostly the system works as usual. Sometimes though, I
boot up or resume and upon opening an application or moving the mouse, I get a
garbled screen, after a few seconds it goes back to normal, only to hang
shortly thereafter again or hang completely. I can't remember this happening
during normal use, meaning if it doesn't happen shortly after boot or resume,
the system works fine.

I cut some suspicious lines from syslog:

Jun 22 10:31:40 nikolaus-desktop kernel: [   86.067026] radeon 0000:01:00.0:
ring 5 stalled for more than 81420msec
Jun 22 10:31:40 nikolaus-desktop kernel: [   86.067034] radeon 0000:01:00.0:
GPU lockup (waiting for 0x0000000000000001 last fence id 0x0000000000000000 on
ring 5)
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.929541] radeon 0000:01:00.0:
GPU reset succeeded, trying to resume
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.986723] [drm] PCIE gen 2 link
speeds already enabled
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.988854] [drm] PCIE GART of
1024M enabled (table at 0x000000000025D000).
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.988930] radeon 0000:01:00.0: WB
enabled
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.988932] radeon 0000:01:00.0:
fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr
0xffff8800d9752c00
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.988933] radeon 0000:01:00.0:
fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr
0xffff8800d9752c0c
Jun 22 10:31:41 nikolaus-desktop kernel: [   86.989307] radeon 0000:01:00.0:
fence driver on ring 5 use gpu addr 0x000000000005c418 and cpu addr
0xffffc90004f9c418
Jun 22 10:31:41 nikolaus-desktop kernel: [   87.005388] [drm] ring test on 0
succeeded in 1 usecs
Jun 22 10:31:41 nikolaus-desktop kernel: [   87.005442] [drm] ring test on 3
succeeded in 1 usecs
Jun 22 10:31:41 nikolaus-desktop kernel: [   87.200919] [drm] ring test on 5
succeeded in 1 usecs
Jun 22 10:31:41 nikolaus-desktop kernel: [   87.200923] [drm] UVD initialized
successfully.
Jun 22 10:31:41 nikolaus-desktop kernel: [   87.200941] [drm] ib test on ring 0
succeeded in 0 usecs
Jun 22 10:31:41 nikolaus-desktop kernel: [   87.200959] [drm] ib test on ring 3
succeeded in 1 usecs
Jun 22 10:31:42 nikolaus-desktop kernel: [   87.370683] [drm:uvd_v1_0_ib_test]
*ERROR* radeon: failed to get create msg (-22).
Jun 22 10:31:42 nikolaus-desktop kernel: [   87.370688]
[drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on ring 5 (-22).
Jun 22 10:31:42 nikolaus-desktop kernel: [   87.370708]
[drm:radeon_pm_resume_dpm] *ERROR* radeon: dpm resume failed
Jun 22 10:31:52 nikolaus-desktop kernel: [   98.016760] radeon 0000:01:00.0:
ring 5 stalled for more than 10000msec
Jun 22 10:31:52 nikolaus-desktop kernel: [   98.016768] radeon 0000:01:00.0:
GPU lockup (waiting for 0x0000000000000001 last fence id 0x0000000000000000 on
ring 5)
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.669107] radeon 0000:01:00.0:
GPU reset succeeded, trying to resume
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.725911] [drm] PCIE gen 2 link
speeds already enabled
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.727900] [drm] PCIE GART of
1024M enabled (table at 0x000000000025D000).
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.727974] radeon 0000:01:00.0: WB
enabled
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.727976] radeon 0000:01:00.0:
fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr
0xffff8800d9752c00
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.727977] radeon 0000:01:00.0:
fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr
0xffff8800d9752c0c
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.728365] radeon 0000:01:00.0:
fence driver on ring 5 use gpu addr 0x000000000005c418 and cpu addr
0xffffc90004f9c418
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.744428] [drm] ring test on 0
succeeded in 1 usecs
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.744483] [drm] ring test on 3
succeeded in 1 usecs
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.940008] [drm] ring test on 5
succeeded in 1 usecs
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.940012] [drm] UVD initialized
successfully.
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.940031] [drm] ib test on ring 0
succeeded in 0 usecs
Jun 22 10:45:27 nikolaus-desktop kernel: [  912.940050] [drm] ib test on ring 3
succeeded in 1 usecs
Jun 22 10:45:27 nikolaus-desktop kernel: [  913.109743] [drm:uvd_v1_0_ib_test]
*ERROR* radeon: failed to get create msg (-22).
Jun 22 10:45:27 nikolaus-desktop kernel: [  913.109748]
[drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on ring 5 (-22).
Jun 22 10:45:27 nikolaus-desktop kernel: [  913.109763]
[drm:radeon_pm_resume_dpm] *ERROR* radeon: dpm resume failed

What else do you need from me?

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