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Hi, I try to verify the JNA with concurrent situation but meet some problems. The following is my example code: public static void testcase1() throws LibvirtException { Connect conn=null; Connect conn1=null; //connect to the hypervisor conn = new Connect("esx://10.74.125.68:443/?no_verify=1&transport=https", new ConnectAuthDefault(), 0); System.out.println(conn.getVersion());
//connect to the hypervisor conn1 = new Connect("esx://10.74.125.90:443/?no_verify=1&transport=https", new ConnectAuthDefault(), 0); System.out.println(conn1.getVersion());
while(true) { int[] array = new int[100000000]; Long version = conn.getVersion(); Long version1 = conn1.getVersion();
try { Thread.sleep(1000); } catch(Exception e) { } } } When I add line “int[] array = new int[100000000]”, then the following error will be generated
very quickly: # An unexpected error has been detected by Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x0000003f9b07046e, pid=30049, tid=1109510464 # # Java VM: OpenJDK 64-Bit Server VM (1.6.0-b09 mixed mode linux-amd64) # Problematic frame: # C [libc.so.6+0x7046e] # # An error report file with more information is saved as: I have tried to write the similar code as following. It works well. static void virXenBasic_TC001(void) { virConnectPtr conn = NULL; virConnectPtr conn1 = NULL; unsigned long version = 0; unsigned long version1 = 0; char *hostname = NULL; conn = virConnectOpenAuth("esx://10.74.125.21/?no_verify=1", virConnectAuthPtrDefault,
0); if (conn == NULL) { fprintf(stderr, "Failed to open connection to qemu:///system\n"); return; } conn1 = virConnectOpenAuth("esx://192.168.119.40/?no_verify=1", virConnectAuthPtrDefault,
0); if (conn1 == NULL) { fprintf(stderr, "Failed to open connection to qemu:///system\n"); return; } while(true) { hostname = malloc(sizeof(char) * 100000000); virConnectGetVersion(conn, &version); virConnectGetVersion(conn, &version1); free(hostname); sleep(1); } return; } B.R. Benjamin Wang |
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