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<head>
<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - GPU lockup CP stall with radeon.dpm=1 on BARTS/6850"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66972">66972</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>GPU lockup CP stall with radeon.dpm=1 on BARTS/6850
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>a.heider@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Using 3.11-rc1 with merged drm-fixes (d1ce3d5 uvesafb: Really allow mtrr being
0, as documented and warn()ed) on top.
There're no glaring problems without radeon.dpm=1, but with dpm I get this:
[ 18.930980] radeon 0000:01:00.0: GPU lockup CP stall for more than 10756msec
[ 18.930983] radeon 0000:01:00.0: GPU lockup (waiting for 0x0000000000000003
last fence id 0x0000000000000001)
[ 19.029921] radeon 0000:01:00.0: Saved 87 dwords of commands on ring 0.
[ 19.030032] radeon 0000:01:00.0: GPU softreset: 0x00000108
[ 19.030035] radeon 0000:01:00.0: GRBM_STATUS = 0xA00038A0
[ 19.030037] radeon 0000:01:00.0: GRBM_STATUS_SE0 = 0x00000007
[ 19.030039] radeon 0000:01:00.0: GRBM_STATUS_SE1 = 0x00000007
[ 19.030041] radeon 0000:01:00.0: SRBM_STATUS = 0x200200C0
[ 19.030043] radeon 0000:01:00.0: SRBM_STATUS2 = 0x00000000
[ 19.030046] radeon 0000:01:00.0: R_008674_CP_STALLED_STAT1 = 0x01000000
[ 19.030048] radeon 0000:01:00.0: R_008678_CP_STALLED_STAT2 = 0x00011100
[ 19.030050] radeon 0000:01:00.0: R_00867C_CP_BUSY_STAT = 0x00028580
[ 19.030052] radeon 0000:01:00.0: R_008680_CP_STAT = 0x80838042
[ 19.030054] radeon 0000:01:00.0: R_00D034_DMA_STATUS_REG = 0x44C83D57
[ 19.221068] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x00004001
[ 19.221120] radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00000500
[ 19.222267] radeon 0000:01:00.0: GRBM_STATUS = 0x00003828
[ 19.222270] radeon 0000:01:00.0: GRBM_STATUS_SE0 = 0x00000007
[ 19.222272] radeon 0000:01:00.0: GRBM_STATUS_SE1 = 0x00000007
[ 19.222274] radeon 0000:01:00.0: SRBM_STATUS = 0x200200C0
[ 19.222276] radeon 0000:01:00.0: SRBM_STATUS2 = 0x00000000
[ 19.222278] radeon 0000:01:00.0: R_008674_CP_STALLED_STAT1 = 0x00000000
[ 19.222280] radeon 0000:01:00.0: R_008678_CP_STALLED_STAT2 = 0x00000000
[ 19.222282] radeon 0000:01:00.0: R_00867C_CP_BUSY_STAT = 0x00000000
[ 19.222285] radeon 0000:01:00.0: R_008680_CP_STAT = 0x00000000
[ 19.222287] radeon 0000:01:00.0: R_00D034_DMA_STATUS_REG = 0x44C83D57
[ 19.222293] radeon 0000:01:00.0: GPU reset succeeded, trying to resume
[ 19.222299] radeon 0000:01:00.0: GPU softreset: 0x00000100
[ 19.222301] radeon 0000:01:00.0: GRBM_STATUS = 0x00003828
[ 19.222303] radeon 0000:01:00.0: GRBM_STATUS_SE0 = 0x00000007
[ 19.222305] radeon 0000:01:00.0: GRBM_STATUS_SE1 = 0x00000007
[ 19.222308] radeon 0000:01:00.0: SRBM_STATUS = 0x200200C0
[ 19.222310] radeon 0000:01:00.0: SRBM_STATUS2 = 0x00000000
[ 19.222312] radeon 0000:01:00.0: R_008674_CP_STALLED_STAT1 = 0x00000000
[ 19.222314] radeon 0000:01:00.0: R_008678_CP_STALLED_STAT2 = 0x00000000
[ 19.222316] radeon 0000:01:00.0: R_00867C_CP_BUSY_STAT = 0x00000000
[ 19.222318] radeon 0000:01:00.0: R_008680_CP_STAT = 0x00000000
[ 19.222320] radeon 0000:01:00.0: R_00D034_DMA_STATUS_REG = 0x44C83D57
[ 19.222476] radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00000400
[ 19.223623] radeon 0000:01:00.0: GRBM_STATUS = 0x00003828
[ 19.223625] radeon 0000:01:00.0: GRBM_STATUS_SE0 = 0x00000007
[ 19.223627] radeon 0000:01:00.0: GRBM_STATUS_SE1 = 0x00000007
[ 19.223630] radeon 0000:01:00.0: SRBM_STATUS = 0x200200C0
[ 19.223632] radeon 0000:01:00.0: SRBM_STATUS2 = 0x00000000
[ 19.223634] radeon 0000:01:00.0: R_008674_CP_STALLED_STAT1 = 0x00000000
[ 19.223636] radeon 0000:01:00.0: R_008678_CP_STALLED_STAT2 = 0x00000000
[ 19.223638] radeon 0000:01:00.0: R_00867C_CP_BUSY_STAT = 0x00000000
[ 19.223640] radeon 0000:01:00.0: R_008680_CP_STAT = 0x00000000
[ 19.223642] radeon 0000:01:00.0: R_00D034_DMA_STATUS_REG = 0x44C83D57
[ 20.283957] [drm] PCIE gen 2 link speeds already enabled
[ 20.286156] [drm] PCIE GART of 512M enabled (table at 0x0000000000273000).
[ 20.286273] radeon 0000:01:00.0: WB enabled
[ 20.286277] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff880800cb7c00
[ 20.286280] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff880800cb7c0c
[ 20.287780] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr
0x0000000000072118 and cpu addr 0xffffc9000c932118
[ 20.304059] [drm] ring test on 0 succeeded in 3 usecs
[ 20.304131] [drm] ring test on 3 succeeded in 1 usecs
[ 20.478915] [drm] ring test on 5 succeeded in 2 usecs
[ 20.478930] [drm] UVD initialized successfully.
[ 20.480805] [drm] ib test on ring 0 succeeded in 0 usecs
[ 20.480851] [drm] ib test on ring 3 succeeded in 1 usecs
[ 30.631806] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
[ 30.631813] radeon 0000:01:00.0: GPU lockup (waiting for 0x0000000000000004
last fence id 0x0000000000000002)
[ 30.631816] [drm:r600_uvd_ib_test] *ERROR* radeon: fence wait failed (-35).
[ 30.631822] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on
ring 5 (-35).
lightdm takes unusually long to show up due to the 1st stall. Eventually I can
log in (xfce without compositing), but just running dmesg in a fullscreen
terminal makes X crash (Backtrace is useless, let me know if one with debug
symbols helps).
>From before the stall: dmesg|grep radeon\|drm:
[ 6.441501] [drm] Initialized drm 1.1.0 20060810
[ 6.547794] [drm] Memory usable by graphics device = 2048M
[ 6.571559] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 6.571560] [drm] Driver supports precise vblank timestamp query.
[ 6.591921] [drm] Wrong MCH_SSKPD value: 0x20100406
[ 6.591923] [drm] This can cause pipe underruns and display issues.
[ 6.591924] [drm] Please upgrade your BIOS to fix this.
[ 6.604625] [drm] radeon kernel modesetting enabled.
[ 6.604655] fb: conflicting fb hw usage radeondrmfb vs EFI VGA - removing
generic driver
[ 6.837612] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 6.837623] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor
0
[ 6.837814] [drm] initializing kernel modesetting (BARTS 0x1002:0x6739
0x174B:0xE174).
[ 6.837838] [drm] register mmio base: 0xF7B20000
[ 6.837839] [drm] register mmio size: 131072
[ 6.838016] radeon 0000:01:00.0: VRAM: 1024M 0x0000000000000000 -
0x000000003FFFFFFF (1024M used)
[ 6.838018] radeon 0000:01:00.0: GTT: 512M 0x0000000040000000 -
0x000000005FFFFFFF
[ 6.838019] [drm] Detected VRAM RAM=1024M, BAR=256M
[ 6.838020] [drm] RAM width 256bits DDR
[ 6.838133] [drm] radeon: 1024M of VRAM memory ready
[ 6.838134] [drm] radeon: 512M of GTT memory ready.
[ 6.843307] [drm] GART: num cpu pages 131072, num gpu pages 131072
[ 6.843559] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[ 6.843733] [drm] Loading BARTS Microcode
[ 6.861606] [drm] PCIE GART of 512M enabled (table at 0x0000000000273000).
[ 6.861727] radeon 0000:01:00.0: WB enabled
[ 6.861729] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff880800cb7c00
[ 6.861730] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff880800cb7c0c
[ 6.861732] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr
0x0000000000072118 and cpu addr 0xffffc9000c932118
[ 6.861734] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 6.861734] [drm] Driver supports precise vblank timestamp query.
[ 6.861750] radeon 0000:01:00.0: irq 50 for MSI/MSI-X
[ 6.861758] radeon 0000:01:00.0: radeon: using MSI.
[ 6.861783] [drm] radeon: irq initialized.
[ 6.878276] [drm] ring test on 0 succeeded in 3 usecs
[ 6.878339] [drm] ring test on 3 succeeded in 1 usecs
[ 7.063144] [drm] ring test on 5 succeeded in 2 usecs
[ 7.063151] [drm] UVD initialized successfully.
[ 7.063365] [drm] ib test on ring 0 succeeded in 0 usecs
[ 7.063408] [drm] ib test on ring 3 succeeded in 0 usecs
[ 7.214700] [drm] ib test on ring 5 succeeded
[ 7.215287] [drm] Radeon Display Connectors
[ 7.215289] [drm] Connector 0:
[ 7.215289] [drm] DP-4
[ 7.215290] [drm] HPD4
[ 7.215291] [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c
0x643c
[ 7.215292] [drm] Encoders:
[ 7.215293] [drm] DFP1: INTERNAL_UNIPHY2
[ 7.215293] [drm] Connector 1:
[ 7.215294] [drm] HDMI-A-4
[ 7.215294] [drm] HPD3
[ 7.215295] [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c
0x646c
[ 7.215296] [drm] Encoders:
[ 7.215296] [drm] DFP2: INTERNAL_UNIPHY2
[ 7.215297] [drm] Connector 2:
[ 7.215298] [drm] DVI-I-1
[ 7.215298] [drm] HPD6
[ 7.215299] [drm] DDC: 0x6470 0x6470 0x6474 0x6474 0x6478 0x6478 0x647c
0x647c
[ 7.215300] [drm] Encoders:
[ 7.215300] [drm] DFP3: INTERNAL_UNIPHY
[ 7.215301] [drm] CRT1: INTERNAL_KLDSCP_DAC1
[ 7.215302] [drm] Connector 3:
[ 7.215302] [drm] DVI-D-1
[ 7.215303] [drm] HPD1
[ 7.215304] [drm] DDC: 0x6480 0x6480 0x6484 0x6484 0x6488 0x6488 0x648c
0x648c
[ 7.215304] [drm] Encoders:
[ 7.215305] [drm] DFP4: INTERNAL_UNIPHY1
[ 7.215401] [drm] Internal thermal controller with fan control
[ 7.227372] [drm] radeon: dpm initialized
[ 7.278110] [drm] fb mappable at 0xE0375000
[ 7.278113] [drm] vram apper at 0xE0000000
[ 7.278113] [drm] size 9216000
[ 7.278114] [drm] fb depth is 24
[ 7.278115] [drm] pitch is 7680
[ 7.278193] fbcon: radeondrmfb (fb1) is primary device
[ 7.636682] radeon 0000:01:00.0: fb1: radeondrmfb frame buffer device
[ 7.636684] [drm] Initialized radeon 2.34.0 20080528 for 0000:01:00.0 on
minor 1
[ 7.818982] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off</pre>
</div>
</p>
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<li>You are the assignee for the bug.</li>
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