15 Sep
2017
15 Sep
'17
10:19 a.m.
After upgrading approx. 50 machines to 7.4 we discovered a reproducible SegFault of one of our commercial programs we use.
This SegFault does not occur on CentOS 7.3 and it occurs only on Xeon E3-1230 V3, Xeon E5-2690 and Xeon E5-2697 v2.
It does NOT occur on Xeon E5-2697 v3 and Xeon E3-1231 v3, AMD Ryzen and older Core I7-9xx.
It is not dependent of the kernel, we switched back to an CentOS 7.3 kernel and forward to an Linux 4.11 kernel without success.
When we run CentOS 7.3 as a guest on CentOS 7.4 in VMWare on affected CPUs the Segmentation Fault does not occur.
Is there any processor specific optimzation dependency on the 7.4 glibc or any libraries I don't know? And what to do against it?
Thank you in advance!
Gerhard Schneider
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Gerhard Schneider
Institute of Lightweight Design and e-Mail: gs@ilsb.tuwien.ac.at
Structural Biomechanics (E317) Tel.: +43 1 58801 31716
TU Wien / Vienna / Austria Fax: +43 1 58801 31799
A-1060 Wien, Getreidemarkt 9/BE02 http://www.ilsb.tuwien.ac.at/~gs/