Hi, I'm trying to run the HotSpot Java VM on an SGI UV 1000 with 4096 cores. When I enable the NUMA-aware garbage collection algorithm, I get a segmentation fault as the virtual machine is initializing. The sigsegv is occurring at one of the memcpy's in numa_node_to_cpus_v1, although I'm afraid I can't determine whether libnuma is being called correctly or incorrectly. I am testing on a system that has numactl 2.0.5. Thanks, --Michael #6 <signal handler called> #7 0x00007f4066fb9ad0 in memcpy () from /lib64/libc.so.6 #8 0x00007f40658d4c6a in numa_node_to_cpus_v1 (node=132, buffer=0x40112d40, bufferlen=<value optimized out>) at libnuma.c:1203 #9 0x00007f4066a85255 in os::Linux::rebuild_cpu_to_node_map() () from /usr/ue/0/mspiegel/jdk1.6.0_22/jre/lib/amd64/server/libjvm.so #10 0x00007f4066a8502f in os::Linux::libnuma_init() () from /usr/ue/0/mspiegel/jdk1.6.0_22/jre/lib/amd64/server/libjvm.so #11 0x00007f4066a86c38 in os::init_2() () from /usr/ue/0/mspiegel/jdk1.6.0_22/jre/lib/amd64/server/libjvm.so #12 0x00007f4066b81c4d in Threads::create_vm(JavaVMInitArgs*, bool*) () from /usr/ue/0/mspiegel/jdk1.6.0_22/jre/lib/amd64/server/libjvm.so -- To unsubscribe from this list: send the line "unsubscribe linux-numa" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
