Branko Čibej <br...@wandisco.com> writes: > On 24.06.2014 21:48, Bert Huijben wrote: >> Hi, >> >> For some time the JavaHL tests on the svn-x64-ubuntu-gcc have been >> segfaulting. >> >> Looking at >> http://ci.apache.org/builders/svn-x64-ubuntu-gcc?numbuilds=200 >> >> It appears this bot started failing after either >> r1603298 or r1603299 >> >> Other, similar bots don't produce the same segfault. >> >> Can somebody get more details of the bot to help diagnosing this problem? > > Can you post one of the JVM stack traces, please; the test output > contains a path to the generated file. FWIW, I've seen reports of JavaHL > segfaults but never been able to reproduce them, this would be an ideal > opportunity.
I'm getting a SEGV in the JVM and it varies from run to run, two examples at the end. I tried r1603298 and r1603297 and those also SEGV. I also tried valgrind but there are a huge number of warnings related to the JVM. I spotted two valgrind warnings that might indicate a Subversion problem (multiple occurrences of each) but these occur after several hundred other warnings: ==26302== Invalid write of size 4 ==26302== at 0x77A1F48: ??? ==26302== by 0x77914E6: ??? ==26302== by 0x5FAC4DD: JavaCalls::call_helper(JavaValue*, methodHandle*, Jav aCallArguments*, Thread*) (in /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/se rver/libjvm.so) ==26302== by 0x5FABF94: JavaCalls::call(JavaValue*, methodHandle, JavaCallArg uments*, Thread*) (in /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/lib jvm.so) ==26302== by 0x5FC14BA: jni_invoke_nonstatic(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*) (in /usr/lib/jvm/java-7 -openjdk-amd64/jre/lib/amd64/server/libjvm.so) ==26302== by 0x5FC5CE5: jni_CallIntMethodV (in /usr/lib/jvm/java-7-openjdk-am d64/jre/lib/amd64/server/libjvm.so) ==26302== by 0x17AF63A6: JNIEnv_::CallIntMethod(_jobject*, _jmethodID*, ...) (jni.h:987) ==26302== by 0x17AF62B6: EnumMapper::getOrdinal(char const*, _jobject*) (Enum Mapper.cpp:324) ==26302== by 0x17AF5EFC: EnumMapper::toDepth(_jobject*) (EnumMapper.cpp:219) ==26302== by 0x17B2841D: Java_org_apache_subversion_javahl_SVNClient_doImport (org_apache_subversion_javahl_SVNClient.cpp:826) ==26302== by 0x77A3CD7: ??? ==26302== by 0x7797057: ??? ==26302== Address 0x414b3a8 is not stack'd, malloc'd or (recently) free'd ==26302== Invalid write of size 4 ==26302== at 0x77A1BC5: ??? ==26302== by 0x7797705: ??? ==26302== by 0x77914E6: ??? ==26302== by 0x5FAC4DD: JavaCalls::call_helper(JavaValue*, methodHandle*, Jav aCallArguments*, Thread*) (in /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/se rver/libjvm.so) ==26302== by 0x5FABF94: JavaCalls::call(JavaValue*, methodHandle, JavaCallArg uments*, Thread*) (in /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/lib jvm.so) ==26302== by 0x5FC14BA: jni_invoke_nonstatic(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*) (in /usr/lib/jvm/java-7 -openjdk-amd64/jre/lib/amd64/server/libjvm.so) ==26302== by 0x5FC5139: jni_CallVoidMethodV (in /usr/lib/jvm/java-7-openjdk-a md64/jre/lib/amd64/server/libjvm.so) ==26302== by 0x17AE97B8: JNIEnv_::CallVoidMethod(_jobject*, _jmethodID*, ...) (jni.h:1054) ==26302== by 0x17AE9FBE: ClientContext::notify(void*, svn_wc_notify_t const*, apr_pool_t*) (ClientContext.cpp:196) ==26302== by 0x17BF1DA5: import_dir (import.c:573) ==26302== by 0x17BF1A39: import_children (import.c:458) ==26302== by 0x17BF2355: import (import.c:751) ==26302== Address 0x414fd10 is not stack'd, malloc'd or (recently) free'd Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7ffff7fd7700 (LWP 1685)] 0x00007ffff6a351aa in ThreadStateTransition::transition_from_native(JavaThread*, JavaThreadState) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so (gdb) bt #0 0x00007ffff6a351aa in ThreadStateTransition::transition_from_native(JavaThread*, JavaThreadState) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #1 0x00007ffff6d2aec0 in Unsafe_CompareAndSwapInt () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #2 0x00007ffff2480cd8 in ?? () #3 0x00007ffff7fd5f10 in ?? () #4 0x00007ffff2474233 in ?? () #5 0x0000000000000000 in ?? () Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffe6cc5700 (LWP 20525)] 0x00007ffff680e379 in ciEnv::get_field_by_index(ciInstanceKlass*, int) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so (gdb) bt #0 0x00007ffff680e379 in ciEnv::get_field_by_index(ciInstanceKlass*, int) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #1 0x00007ffff6829683 in ciBytecodeStream::get_field(bool&) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #2 0x00007ffff6c16915 in Parse::do_field_access(bool, bool) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #3 0x00007ffff6c110a1 in Parse::do_one_bytecode() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #4 0x00007ffff6c06f7d in Parse::do_one_block() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #5 0x00007ffff6c073e4 in Parse::do_all_blocks() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #6 0x00007ffff6c08a8a in Parse::Parse(JVMState*, ciMethod*, float) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #7 0x00007ffff67eff75 in ParseGenerator::generate(JVMState*) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #8 0x00007ffff692208e in Parse::do_call() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #9 0x00007ffff6c1369e in Parse::do_one_bytecode() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #10 0x00007ffff6c06f7d in Parse::do_one_block() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #11 0x00007ffff6c073e4 in Parse::do_all_blocks() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #12 0x00007ffff6c08a8a in Parse::Parse(JVMState*, ciMethod*, float) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #13 0x00007ffff67eff75 in ParseGenerator::generate(JVMState*) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #14 0x00007ffff687b823 in Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #15 0x00007ffff67ef7f0 in C2Compiler::compile_method(ciEnv*, ciMethod*, int) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #16 0x00007ffff68800fe in CompileBroker::invoke_compiler_on_method(CompileTask*) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #17 0x00007ffff688132c in CompileBroker::compiler_thread_loop() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #18 0x00007ffff6d0f3c5 in JavaThread::thread_main_inner() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #19 0x00007ffff6d0f6d1 in JavaThread::run() () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #20 0x00007ffff6be0242 in java_start(Thread*) () from /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so #21 0x00007ffff7bc7b50 in start_thread (arg=<optimized out>) at pthread_create.c:304 #22 0x00007ffff75000ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #23 0x0000000000000000 in ?? () -- Philip Martin | Subversion Committer WANdisco // *Non-Stop Data*