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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NV84] Hangs with gr: DATA_ERROR [INVALID_BITFIELD], TRAP_PROP [RT_FAULT], fb: trapped write [PGRAPH] [PROP] [RT0] [PAGE_NOT_PRESENT], bsp: Watchdog interrupt, engine hung"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95330">95330</a>
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<th>Summary</th>
<td>[NV84] Hangs with gr: DATA_ERROR [INVALID_BITFIELD], TRAP_PROP [RT_FAULT], fb: trapped write [PGRAPH] [PROP] [RT0] [PAGE_NOT_PRESENT], bsp: Watchdog interrupt, engine hung
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>Driver/nouveau
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>freedesktop@mattwhitlock.name
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=123586" name="attach_123586" title="kernel.log">attachment 123586</a> <a href="attachment.cgi?id=123586&action=edit" title="kernel.log">[details]</a></span>
kernel.log
Nouveau has been wildly unstable for me ever since I upgraded from about Linux
4.1 to 4.4+. The latest manifestation of this bumpy ride was a full X.org
server hang. I was still able to SSH in to capture some logs.
01:00.0 VGA compatible controller: NVIDIA Corporation G84 [GeForce 8600 GT]
(rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd G84 [GeForce 8600 GT]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 27
Region 0: Memory at e4000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at e2000000 (64-bit, non-prefetchable) [size=32M]
Region 5: I/O ports at 3000 [size=128]
Expansion ROM at <ignored> [disabled]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0100c Data: 41e1
Capabilities: [78] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1
<4us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit
75.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency
L0s <512ns, L1 <4us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [128 v1] Power Budgeting <?>
Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024
<?>
Kernel driver in use: nouveau
Software versions in use:
* Linux kernel 4.5.3-gentoo
* X.org X11 server 1.18.3
* xf86-video-nouveau 1.0.12
* libdrm 2.4.68
* Mesa 11.2.1
Hang occurred shortly after quitting VLC. Kernel logs shows multiple errors
from nouveau at this time, followed by an eventual segfault of vlc in
libxcb.so.1.1.0 and segfault of kactivitymanage in libQt5Sql.so.5.6.0.
I logged in via SSH and issued a reboot command, which took a while to process.
Kernel log shows multiple "failed to idle channel" errors from nouveau,
apparently one per X client. Also "fifo: channel … unload timeout" and "bsp:
Watchdog interrupt, engine hung." See attached kernel log for specifics.</pre>
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