GPU Lockups with Unity 3D & Nouveau on Oneiric with GeForce 6150SE nForce 430

[Scott Talbert]

I believe I am seeing GPU lockups when running Unity 3D on Oneiric with the Nouveau driver using a GeForce 6150SE nForce 430. I'm not entirely sure what causes them, but I can usually make them occur by repeatedly minimizing and maximizing windows, showing/hiding the Unity panel, etc. This behavior seems to be new in Oneiric (I was able to run Unity 3D without any major issues under Natty.)

This is my video card:
00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)

Xorg logs show:
[ 87595.983] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
[ 87595.983]
Backtrace:
[ 87595.984] 0: /usr/bin/X (xorg_backtrace+0x26) [0x460566]
[ 87595.984] 1: /usr/bin/X (mieqEnqueue+0x201) [0x45a941]
[ 87595.984] 2: /usr/bin/X (xf86PostMotionEventM+0xa3) [0x4805e3]
[ 87595.984] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f753045d000+0x5f23) [0x7f7530462f23]
[ 87595.984] 4: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f753045d000+0x65fb) [0x7f75304635fb]
[ 87595.984] 5: /usr/bin/X (0x400000+0x6da77) [0x46da77]
[ 87595.984] 6: /usr/bin/X (0x400000+0x121f8e) [0x521f8e]
[ 87595.984] 7: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f7536efa000+0x10060) [0x7f7536f0a060]
[ 87595.984] 8: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f7535eeea47]
[ 87595.984] 9: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f7534494068]
[ 87595.984] 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandWriteRead+0x1c) [0x7f753449639c]
[ 87595.984] 11: /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.1 (nouveau_pushbuf_flush+0xaf) [0x7f7533e480ef]
[ 87595.984] 12: /usr/lib/xorg/modules/libexa.so (0x7f7533a0b000+0xae04) [0x7f7533a15e04]
[ 87595.984] 13: /usr/lib/xorg/modules/libexa.so (0x7f7533a0b000+0xb165) [0x7f7533a16165]
[ 87595.984] 14: /usr/bin/X (miCopyRegion+0x18a) [0x54fe8a]
[ 87595.984] 15: /usr/bin/X (miDoCopy+0x392) [0x550382]
[ 87595.984] 16: /usr/lib/xorg/modules/libexa.so (0x7f7533a0b000+0xa29f) [0x7f7533a1529f]
[ 87595.984] 17: /usr/bin/X (0x400000+0xe05cc) [0x4e05cc]
[ 87595.984] 18: /usr/bin/X (0x400000+0x2bc83) [0x42bc83]
[ 87595.984] 19: /usr/bin/X (0x400000+0x2fb89) [0x42fb89]
[ 87595.984] 20: /usr/bin/X (0x400000+0x232fe) [0x4232fe]
[ 87595.984] 21: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f7535e3630d]
[ 87595.984] 22: /usr/bin/X (0x400000+0x235ed) [0x4235ed]

Around the time of the lockup, dmesg shows:
[87582.226948] [drm] nouveau 0000:00:0d.0: fail post-validate sync
[87582.226960] [drm] nouveau 0000:00:0d.0: validate vram_list
[87582.226994] [drm] nouveau 0000:00:0d.0: validate: -16
[87582.256149] [drm] nouveau 0000:00:0d.0: fail pre-validate sync
[87582.256159] [drm] nouveau 0000:00:0d.0: validate vram_list
[87582.256219] [drm] nouveau 0000:00:0d.0: validate: -16
[87603.496559] [drm] nouveau 0000:00:0d.0: fail pre-validate sync
[87603.496569] [drm] nouveau 0000:00:0d.0: validate vram_list
[87603.496585] [drm] nouveau 0000:00:0d.0: validate: -16

[Francis Upton (francisu)]

Could be a dup of bug 994306

[Scott Talbert (swt-techie)]

Maybe, maybe not. It looks like we have different video hardware.

[penalvch (penalvch)]

Scott Talbert, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xserver-xorg-video-nouveau REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-nouveau (Ubuntu) because there has been no activity for 60 days.]