All, I pulled the latest source from master and rebuilt my engine. Every time I attempt to login I see: 2017-01-27 13:22:51,403+01 INFO [org.ovirt.engine.core.sso.utils.AuthenticationUtils] (default task-54) [] User admin@internal successfully logged in with scopes: ovirt-app-admin ovirt-app-api ovirt-app-portal ovirt-ext=auth:sequence-priority=~ ovirt-ext=revoke:revoke-all ovirt-ext=token-info:authz-search ovirt-ext=token-info:public-authz-search ovirt-ext=token-info:validate ovirt-ext=token:password-access # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007f514eb45734, pid=2519, tid=0x00007f51119a6700 # # JRE version: OpenJDK Runtime Environment (8.0_111-b16) (build 1.8.0_111-b16) # Java VM: OpenJDK 64-Bit Server VM (25.111-b16 mixed mode linux-amd64 compressed oops) # Problematic frame: # C [libc.so.6+0x14a734] __memcpy_avx_unaligned+0x2c4 # # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # An error report file with more information is saved as: # /tmp/hs_err_pid2519.log # # If you would like to submit a bug report, please visit: # http://bugreport.java.com/bugreport/crash.jsp # ovirt-engine[2471] ERROR run:554 Error: process terminated with status code -6 I enabled ssl debug to find: 2017-01-27 13:22:37,641+01 INFO [stdout] (default I/O-2) default I/O-2, fatal error: 80: problem unwrapping net record 2017-01-27 13:22:37,642+01 INFO [stdout] (default I/O-2) java.lang.RuntimeException: java.lang.NegativeArraySizeException 2017-01-27 13:22:37,642+01 INFO [stdout] (default I/O-2) %% Invalidated: [Session-1, SSL_NULL_WITH_NULL_NULL] 2017-01-27 13:22:37,643+01 INFO [stdout] (default I/O-2) default I/O-2, SEND TLSv1.2 ALERT: fatal, description = internal_error 2017-01-27 13:22:37,643+01 INFO [stdout] (default I/O-2) default I/O-2, WRITE: TLSv1.2 Alert, length = 2 2017-01-27 13:22:37,643+01 INFO [stdout] (default I/O-2) default I/O-2, called closeInbound() 2017-01-27 13:22:37,643+01 INFO [stdout] (default I/O-2) default I/O-2, fatal: engine already closed. Rethrowing javax.net.ssl.SSLException: Inbound closed before receiving peer's close_notify: possible truncation attack? 2017-01-27 13:22:37,643+01 INFO [stdout] (default I/O-2) default I/O-2, called closeOutbound() 2017-01-27 13:22:37,643+01 INFO [stdout] (default I/O-2) default I/O-2, closeOutboundInternal() 2017-01-27 13:22:37,644+01 INFO [stdout] (default task-1) default task-1, received EOFException: error 2017-01-27 13:22:37,644+01 INFO [stdout] (default task-1) default task-1, handling exception: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake 2017-01-27 13:22:37,645+01 INFO [stdout] (default task-1) default task-1, SEND TLSv1.2 ALERT: fatal, description = handshake_failure 2017-01-27 13:22:37,645+01 INFO [stdout] (default task-1) default task-1, WRITE: TLSv1.2 Alert, length = 2 2017-01-27 13:22:37,645+01 INFO [stdout] (default task-1) [Raw write]: length = 7 2017-01-27 13:22:37,647+01 INFO [stdout] (default task-1) 0000: 15 03 03 00 02 02 28 ......( 2017-01-27 13:22:37,647+01 INFO [stdout] (default task-1) default task-1, called closeSocket() 2017-01-27 13:22:37,644+01 ERROR [org.xnio.nio] (default I/O-2) XNIO000011: Task io.undertow.protocols.ssl.SslConduit$5$1@6d665208 failed with an exception: java.lang.RuntimeException: java.lang.NegativeArraySizeException at sun.security.ssl.Handshaker.checkThrown(Handshaker.java:1429) [jsse.jar:1.8.0_111] at sun.security.ssl.SSLEngineImpl.checkTaskThrown(SSLEngineImpl.java:535) [jsse.jar:1.8.0_111] at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:813) [jsse.jar:1.8.0_111] at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:781) [jsse.jar:1.8.0_111] at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624) [rt.jar:1.8.0_111] at io.undertow.protocols.ssl.SslConduit.doUnwrap(SslConduit.java:742) at io.undertow.protocols.ssl.SslConduit.doHandshake(SslConduit.java:639) at io.undertow.protocols.ssl.SslConduit.access$900(SslConduit.java:63) at io.undertow.protocols.ssl.SslConduit$5$1.run(SslConduit.java:1035) at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:588) [xnio-nio-3.4.0.Final.jar:3.4.0.Final] at org.xnio.nio.WorkerThread.run(WorkerThread.java:468) [xnio-nio-3.4.0.Final.jar:3.4.0.Final] Caused by: java.security.ProviderException: java.lang.NegativeArraySizeException at sun.security.ec.ECKeyPairGenerator.generateKeyPair(ECKeyPairGenerator.java:147) at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:703) [rt.jar:1.8.0_111] at sun.security.ssl.ECDHCrypt.<init>(ECDHCrypt.java:64) [jsse.jar:1.8.0_111] at sun.security.ssl.ServerHandshaker.setupEphemeralECDHKeys(ServerHandshaker.java:1432) [jsse.jar:1.8.0_111] at sun.security.ssl.ServerHandshaker.trySetCipherSuite(ServerHandshaker.java:1219) [jsse.jar:1.8.0_111] at sun.security.ssl.ServerHandshaker.chooseCipherSuite(ServerHandshaker.java:1023) [jsse.jar:1.8.0_111] at sun.security.ssl.ServerHandshaker.clientHello(ServerHandshaker.java:738) [jsse.jar:1.8.0_111] at sun.security.ssl.ServerHandshaker.processMessage(ServerHandshaker.java:221) [jsse.jar:1.8.0_111] at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) [jsse.jar:1.8.0_111] at sun.security.ssl.Handshaker$1.run(Handshaker.java:919) [jsse.jar:1.8.0_111] at sun.security.ssl.Handshaker$1.run(Handshaker.java:916) [jsse.jar:1.8.0_111] at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_111] at sun.security.ssl.Handshaker$DelegatedTask.run(Handshaker.java:1369) [jsse.jar:1.8.0_111] at io.undertow.protocols.ssl.SslConduit$5.run(SslConduit.java:1023) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_111] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_111] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_111] Caused by: java.lang.NegativeArraySizeException at sun.security.ec.ECKeyPairGenerator.generateECKeyPair(Native Method) at sun.security.ec.ECKeyPairGenerator.generateKeyPair(ECKeyPairGenerator.java:128) ... 16 more Are we aware of the issue? Is there any workaround? I am using fedora 24 with all recent updates applied. Thanks, Piotr