tag:support.primatelabs.com,2011-01-31:/discussions/geekbench/28697-segmentation-fault-with-compute-benchmark-on-ivy-bridgePrimate Labs: Discussion 2018-07-24T18:32:21Ztag:support.primatelabs.com,2011-01-31:Comment/457457112018-07-21T02:00:33Z2018-07-21T02:00:36ZSegmentation fault with compute benchmark on Ivy Bridge<div><p>When I run <code>geekbench_x86_64 --compute OpenCL</code> on my Linux machine, segmentation fault occurs when the face detection test begins. I run Geekbench 4.2.3 on Manjaro 64-bit kernel 4.14.54-1 with all latest updates. I have the package <code>beignet</code> v1.3.2-2 and <code>llvm-libs</code> v6.0.0-4. My CPU is an Intel Core i5 3317U with an integrated Intel HD Graphics 4000. Here is my Geekbench output after running the command:</p>
<pre>
<code>Geekbench 4.2.3 Tryout : http://www.geekbench.com/
Geekbench 4 is in tryout mode.
Geekbench 4 requires an active Internet conn....
[...]
Running Gathering system information
System Information
Operating System Manjaro Linux 4.14.54-1-MANJARO x86_64
Model ASUSTeK COMPUTER INC. X202E
Motherboard ASUSTeK COMPUTER INC. X202E
Memory 3.68 GB
BIOS American Megatrends Inc. X202E.210
Processor Information
Name Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz
Topology 1 Processor, 2 Cores, 4 Threads
Identifier GenuineIntel Family 6 Model 58 Stepping 9
Base Frequency 2.60 GHz
L1 Instruction Cache 32.0 KB x 2
L1 Data Cache 32.0 KB x 2
L2 Cache 256 KB x 2
L3 Cache 3.00 MB
OpenCL Information
Platform Vendor Intel
Platform Name Intel Gen OCL Driver
Device Vendor Intel
Device Name Intel(R) HD Graphics IvyBridge M GT2
Maximum Frequency 1.00 GHz
Compute Units 16
Device Memory 1.84 GB
OpenCL
Running Sobel
Running Histogram Equalization
Running SFFT
Running Gaussian Blur
Running Face Detection
Segmentation fault (core dumped)</code>
</pre>
<p>I noticed that the segfault is logged by <code>dmesg</code>. Here is what was logged in <code>dmesg</code>:<br></p>
<pre>
<code>geekbench_x86_6[2079]: segfault at 7fff14c67fd8 ip 00007f889733d52a sp 00007fff14c67fe0 error 6 in libLLVM-6.0.so[7f8896996000+394a000]</code>
</pre>
<p>Is there a workaround or could you fix it to be able to fully run the compute benchmark on my machine? The CPU benchmark fully runs without any issue.</p>
<p>Thanks!</p></div>ydrolettag:support.primatelabs.com,2011-01-31:Comment/457457112018-07-24T18:32:18Z2018-07-24T18:32:18ZSegmentation fault with compute benchmark on Ivy Bridge<div><p>Hi ydrolet,</p>
<p>Thanks for bringing this to our attention. Unfortunately, we have no workarounds at the moment, but I have let the team know about this issue. I'll post here if I have any updates for you. In the meantime, let me know if there's anything else I can help with.</p>
<p>All the best,</p>
<p>Sarah<br>
Primate Labs Inc.</p></div>Sarah