<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Hi Igor,</span></div><div><br><span></span></div><div><span>Yes, its a Linux box with 2.6.35-22-server kernel version. Its running a 64-bit ubuntu server.</span></div><div><span><br></span></div><div><span>Yes it does reproduce with -XX:-UseLargePages option.<br></span></div><div><br><span></span></div><div>Please let me know if you need any other information.<br><span></span></div><div><span><br></span></div><div>Regards,</div><div>Lokesh<br><span></span></div><div><span></span></div><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><font face="Arial" size="2"><hr size="1"><b><span
style="font-weight:bold;">From:</span></b> Igor Veresov <igor.veresov@oracle.com><br><b><span style="font-weight: bold;">To:</span></b> hotspot-gc-dev@openjdk.java.net<br><b><span style="font-weight: bold;">Sent:</span></b> Thursday, 28 July 2011 11:14 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: Segmentation fault with NUMA aware ParallelScavange GC<br></font><br>Hi!<br><br>This is Linux, right?<br>What kernel version do you have?<br>Does it reproduce with -X<span class="tab"></span>X:-UseLargePages?<br><br>igor<br><br>On 7/28/11 2:23 AM, Lokesh Gidra wrote:<br>> Hi,<br>><br>> I am trying to use the NUMA-aware implementation of ParallelScavenge GC<br>> of OpenJDK7 on a 8-node machine. Almost everytime I run it, I get a<br>> segmentation fault trying to access a page aligned address. The test is<br>> with DaCapo benchmarks which works fine with default setup. Although the<br>> address lies in the range of
one of the lgrp's but in the memory maps,<br>> its not mapped anywhere. Can anyone please explain me what could be the<br>> problem. Please let me know if some additional information is needed.<br>><br>><br>> Best Regards,<br>> Lokesh<br><br><br><br></div></div></blockquote></div></div></body></html>