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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Segfault in xf86-video-intel-2.99.917 (sna) with gcc-5.1, linux-4.0 headers, linux-4.0 kernels"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90622">90622</a>
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<th>Summary</th>
<td>Segfault in xf86-video-intel-2.99.917 (sna) with gcc-5.1, linux-4.0 headers, linux-4.0 kernels
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<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>
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<th>Component</th>
<td>Driver/intel
</td>
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
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<th>Reporter</th>
<td>zarniwhoop@ntlworld.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<pre>Created <span class=""><a href="attachment.cgi?id=116015" name="attach_116015" title="Xorg log after segfault">attachment 116015</a> <a href="attachment.cgi?id=116015&action=edit" title="Xorg log after segfault">[details]</a></span>
Xorg log after segfault
Summary: on x86_64 linuxfromscratch, with current released versions of
everything, if I use the default sna acceleration with a 4.0 kernel (tested
with 4.0.3 and 4.0.4) Xorg segfaults while trying to start. Oddly, if I build a
3.19.0 kernel (still using gcc-5) on the same sytem, it is fine.
With 4.0 kernels, if I enable uxa and force that in a conf file Xorg works
fine.
This is a SandyBridge running as x86_64 :
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 42
model name : Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz
stepping : 7
lspci says:
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Gigabyte Technology Co., Ltd 2nd Generation Core Processor
Family Integrated Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 24
Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Main package versions
xf86-video-intel-2.99.917
xorg-server-1.17.1
mesa-10.5.5
libdrm-2.4.61
This is using the VGA connector
Steps to reproduce: run 'startx'</pre>
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