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* [Bug 94081] New: [radeon 3.18 regression] GPU reset recovery fails
@ 2015-03-01 19:02 bugzilla-daemon
  2015-03-01 19:05 ` [Bug 94081] " bugzilla-daemon
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2015-03-01 19:02 UTC (permalink / raw)
  To: dri-devel

https://bugzilla.kernel.org/show_bug.cgi?id=94081

            Bug ID: 94081
           Summary: [radeon 3.18 regression] GPU reset recovery fails
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.18.x
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: jan.vesely@rutgers.edu
        Regression: No

starting with kernel-3.18 (fedora version) fails to recover from OpenCL induced
GPU loockup.
reproducer:
Run noise-hurl.xml OpenCL test in gegl library:
[354672.707822] radeon 0000:01:00.0: ring 0 stalled for more than 10020msec

on 3.17 (fedora again) I observe one or two display flashes, and full recovery.

starting with 3.18 I see the flash, and the dispaly stays frozen. the task
itself(gegl) stays in uninteruptible state

Here are the relevant lines from dmesg on 3.18:
[354672.707822] radeon 0000:01:00.0: ring 0 stalled for more than 10020msec
[354672.707828] radeon 0000:01:00.0: GPU lockup (current fence id
0x00000000007778a3 last fence id 0x00000000007778b3 on ring 0)
[354672.828879] radeon 0000:01:00.0: Saved 503 dwords of commands on ring 0.
[354672.828898] radeon 0000:01:00.0: GPU softreset: 0x00000009
[354672.828900] radeon 0000:01:00.0:   GRBM_STATUS               = 0xA0433828
[354672.828902] radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 0x08000007
[354672.828903] radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 0x00000007
[354672.828905] radeon 0000:01:00.0:   SRBM_STATUS               = 0x20000AC0
[354672.828907] radeon 0000:01:00.0:   SRBM_STATUS2              = 0x00000000
[354672.828908] radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
[354672.828910] radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 0x00018000
[354672.828912] radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 0x00010002
[354672.828913] radeon 0000:01:00.0:   R_008680_CP_STAT          = 0x80038647
[354672.828915] radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
[354672.842214] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x00007F6B
[354672.842267] radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00000100
[354672.843423] radeon 0000:01:00.0:   GRBM_STATUS               = 0x00003828
[354672.843425] radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 0x00000007
[354672.843426] radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 0x00000007
[354672.843428] radeon 0000:01:00.0:   SRBM_STATUS               = 0x200000C0
[354672.843429] radeon 0000:01:00.0:   SRBM_STATUS2              = 0x00000000
[354672.843431] radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
[354672.843432] radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 0x00000000
[354672.843434] radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000000
[354672.843435] radeon 0000:01:00.0:   R_008680_CP_STAT          = 0x00000000
[354672.843437] radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
[354672.843456] radeon 0000:01:00.0: GPU reset succeeded, trying to resume
[354672.865723] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[354672.868296] [drm] PCIE GART of 1024M enabled (table at 0x0000000000274000).
[354672.868388] radeon 0000:01:00.0: WB enabled
[354672.868390] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff880401c54c00
[354672.868391] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff880401c54c0c
[354672.869865] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr
0x0000000000072118 and cpu addr 0xffffc900062b2118
[354672.886233] [drm] ring test on 0 succeeded in 3 usecs
[354672.886244] [drm] ring test on 3 succeeded in 7 usecs
[354673.063433] [drm] ring test on 5 succeeded in 2 usecs
[354673.063441] [drm] UVD initialized successfully.
[354673.187403] [drm] ib test on ring 0 succeeded in 0 usecs
[354673.187432] [drm] ib test on ring 3 succeeded in 0 usecs

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2015-03-01 19:02 [Bug 94081] New: [radeon 3.18 regression] GPU reset recovery fails bugzilla-daemon
2015-03-01 19:05 ` [Bug 94081] " bugzilla-daemon
2015-03-02  6:58 ` bugzilla-daemon
2015-03-04 21:10 ` bugzilla-daemon
2015-03-05  1:12 ` bugzilla-daemon

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