Radeon lockup on 3.8.5-201.fc18.x86_64

[Andy Lutomirski]

On Mon, Apr 8, 2013 at 7:01 AM, Alex Deucher <alexdeucher at gmail.com> wrote:
> On Fri, Apr 5, 2013 at 5:11 PM, Andy Lutomirski <luto at amacapital.net> wrote:
>> Every day or so, I'll click something and my screens go blank for a
>> second or two.  dmesg complains about a lockup, and afterwards
>> everything is painfully slow.  (Even switching focus to other emacs
>> windows takes a second or two.)  Once this happens, if I restart X, I
>> get a blank screen, although the mouse still works and I can switch
>> VTs and use the console.
>
> Try disabling hyperZ.  Set env var R600_HYPERZ=0 (mesa 9.1) or
> R600_DEBUG=nohyperz (mesa git).

It lasted longer.  I have both of those environment variables set on
the Xorg process but not on clients.  Do  I need it everywhere?

The failure was:

[847785.776441] radeon 0000:08:00.0: GPU lockup CP stall for more than 10654msec
[847785.776449] radeon 0000:08:00.0: GPU lockup (waiting for
0x00000000000090f8 last fence id 0x00000000000090f7)
[847785.777542] radeon 0000:08:00.0: Saved 71 dwords of commands on ring 0.
[847785.777548] radeon 0000:08:00.0: GPU softreset: 0x00000007
[847785.789844] radeon 0000:08:00.0:   GRBM_STATUS               = 0xA0003828
[847785.789847] radeon 0000:08:00.0:   GRBM_STATUS_SE0           = 0x00000007
[847785.789850] radeon 0000:08:00.0:   GRBM_STATUS_SE1           = 0x00000007
[847785.789852] radeon 0000:08:00.0:   SRBM_STATUS               = 0x200080C0
[847785.789855] radeon 0000:08:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
[847785.789857] radeon 0000:08:00.0:   R_008678_CP_STALLED_STAT2 = 0x00000000
[847785.789860] radeon 0000:08:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000004
[847785.789862] radeon 0000:08:00.0:   R_008680_CP_STAT          = 0x80008647
[847785.789864] radeon 0000:08:00.0:   GRBM_SOFT_RESET=0x00007F6B
[847785.789919] radeon 0000:08:00.0:   GRBM_STATUS               = 0x00003828
[847785.789922] radeon 0000:08:00.0:   GRBM_STATUS_SE0           = 0x00000007
[847785.789924] radeon 0000:08:00.0:   GRBM_STATUS_SE1           = 0x00000007
[847785.789927] radeon 0000:08:00.0:   SRBM_STATUS               = 0x200080C0
[847785.789929] radeon 0000:08:00.0:   R_008674_CP_STALLED_STAT1 = 0x00000000
[847785.789932] radeon 0000:08:00.0:   R_008678_CP_STALLED_STAT2 = 0x00000000
[847785.789934] radeon 0000:08:00.0:   R_00867C_CP_BUSY_STAT     = 0x00000000
[847785.789937] radeon 0000:08:00.0:   R_008680_CP_STAT          = 0x00000000
[847785.789941] radeon 0000:08:00.0:   R_00D034_DMA_STATUS_REG   = 0x04483106
[847785.789997] radeon 0000:08:00.0:   R_00D034_DMA_STATUS_REG   = 0x44C83D57
[847785.807356] radeon 0000:08:00.0: GPU reset succeeded, trying to resume
[847785.825791] [drm] probing gen 2 caps for device 8086:1d1a = 2/0
[847785.825797] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[847785.832851] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[847785.832993] radeon 0000:08:00.0: WB enabled
[847785.832996] radeon 0000:08:00.0: fence driver on ring 0 use gpu
addr 0x0000000040000c00 and cpu addr 0xffff88044295bc00
[847785.832997] radeon 0000:08:00.0: fence driver on ring 3 use gpu
addr 0x0000000040000c0c and cpu addr 0xffff88044295bc0c
[847785.849454] [drm] ring test on 0 succeeded in 2 usecs
[847785.849523] [drm] ring test on 3 succeeded in 1 usecs
[847785.849604] [drm] ib test on ring 0 succeeded in 0 usecs
[847785.849681] [drm] ib test on ring 3 succeeded in 1 usecs

--Andy