Bug 79946 - [NV30/Gallium] Segmentation violation at nouveau_fence.c
Summary: [NV30/Gallium] Segmentation violation at nouveau_fence.c
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/nouveau (show other bugs)
Version: 10.1
Hardware: x86-64 (AMD64) Linux (All)
: medium minor
Assignee: Nouveau Project
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Reported: 2014-06-12 18:35 UTC by Vittorio
Modified: 2014-06-19 21:59 UTC (History)
0 users

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Description Vittorio 2014-06-12 18:35:27 UTC 
On mesa-20140509
Chipset C51 (NV4E)
Family NV40 Video card NVIDIA GeForce 6150 LE
Running ~/intel/ism/bin/intel64/intelremotedialog
from Intel VTune Amplifier XE 2013 command amplxe-gui on Linux Fedora 20.

Segmentation violation at nouveau_fence.c:226
"if (screen->fence.current->state < NOUVEAU_FENCE_STATE_EMITTING)"
pointer screen is nil because after nv30/nv30_context.c:44
"nv30 = container_of(push->user_priv, nv30, bufctx);"
assert(nv30->screen) fails.
Comment 1 Vittorio 2014-06-19 10:56:04 UTC 
I get the same bug running glxinfo and glxinfo64.
I hope this helps reproducing the bug.
Comment 2 Maarten Lankhorst 2014-06-19 11:48:39 UTC 

*** This bug has been marked as a duplicate of bug 79823 ***
Comment 3 Ilia Mirkin 2014-06-19 17:35:30 UTC 
Actually this unlikely to be a duplicate of that bug. This bug might be resolved by

http://cgit.freedesktop.org/mesa/mesa/commit/?id=c092c46b27c6f6a6674e8d67fb3afdb684811819

But I'm not 100% sure... mind trying it out?
Comment 4 Vittorio 2014-06-19 21:57:05 UTC 
You may be 100% sure now:I tried your patch and it fixes my problem, both the original one and with glxinfo.
Keep up the good work!

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