Date: Wed, 18 May 2016 08:37:58 +0000 From: bugzilla-noreply@freebsd.org To: java@FreeBSD.org Subject: maintainer-feedback requested: [Bug 209599] SIGSEGV in regression test suite on OpenJDK8 Message-ID: <bug-209599-8522-Q4QEv8mqAY@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-209599-8522@https.bugs.freebsd.org/bugzilla/> References: <bug-209599-8522@https.bugs.freebsd.org/bugzilla/>
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Andrew Smith <iamasmith.home@gmail.com> has reassigned Bugzilla Automation <bugzilla@FreeBSD.org>'s request for maintainer-feedback to java@FreeBSD.or= g: Bug 209599: SIGSEGV in regression test suite on OpenJDK8 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209599 --- Description --- Whilst investigating a stability problem that occurs periodically if we att= empt to utilise OpenJDK 8 with Tomcat (resulting in various SIGSEGV and SIGBUS errors), I decided to build everything afresh from current sources and perf= orm run the test suite. System information on JDK build test machine. 10.3-RELEASE FreeBSD root@testbuild1:~ # freebsd-version 10.3-RELEASE portsnap sources fetched and installed on 16th May root@testbuild1:~ # ls -l /var/db/portsnap/ total 4504 -rw-r--r-- 1 root wheel 2255587 May 16 09:59 INDEX drwxr-xr-x 2 root wheel 2237952 May 16 09:59 files -rw-r--r-- 1 root wheel 451 May 16 09:56 pub.ssl -rw-r--r-- 1 root wheel 272 May 16 09:56 serverlist -rw-r--r-- 1 root wheel 272 May 16 09:56 serverlist_full -rw-r--r-- 1 root wheel 40 May 16 09:56 serverlist_tried -rw-r--r-- 1 root wheel 681 May 16 09:59 tINDEX -rw-r--r-- 1 root wheel 85 May 16 09:59 tag root@testbuild1:~ #=20 Build process cycle run as follows.. # Selected all build configurations up front for the whole depdency set usi= ng postmaster # Every option with the exception of turning on TEST for OpenJDK8 was set to default. portmaster -n java/openjdk8 # Build actual port so that the build area was not cleaned (as is the case = when using postmaster). cd /usr/ports/java/openjdk8 make clean install 2 of the tests fail when running the regression tests and error logs can be collected as follows.. /usr/ports/java/openjdk8/work/openjdk/build/bsd-x86_64-normal-server-releas= e/te stoutput/jdk_core/output.txt and to locate the stashed error reports in the test hierarchy.. root@testbuild1:~ # cd /usr/ports/java/openjdk8/work/openjdk/build/bsd-x86_64-normal-server-releas= e/te stoutput/jdk_core root@testbuild1:/usr/ports/java/openjdk8/work/openjdk/build/bsd-x86_64-norm= al-s erver-release/testoutput/jdk_core # find . -name 'hs_*' ./JTwork/java/nio/MappedByteBuffer/Truncate/hs_err_pid57787.log ./JTwork/sun/misc/CopyMemory/hs_err_pid57712.log The logs always show SIGSEGV errors from the same locations with the failure signal being triggered during calles to sun.misc.Unsafe methods.. Stack: [0x00007fffde0e0000,0x00007fffde1e0000], sp=3D0x00007fffde1df080, = free space=3D1020k Native frames: (J=3Dcompiled Java code, j=3Dinterpreted, Vv=3DVM code, C=3D= native code) V [libjvm.so+0x8d3ced] JVM_handle_bsd_signal+0x120c2d j sun.misc.Unsafe.putByte(Ljava/lang/Object;JB)V+0 j CopyMemory.set(Lsun/misc/Unsafe;JIII)V+23 j CopyMemory.testSetRawMemory(Lsun/misc/Unsafe;)V+32 j CopyMemory.main([Ljava/lang/String;)V+9 Stack: [0x00007fffdf1f1000,0x00007fffdf2f1000], sp=3D0x00007fffdf2f0860, = free space=3D1022k Native frames: (J=3Dcompiled Java code, j=3Dinterpreted, Vv=3DVM code, C=3D= native code) V [libjvm.so+0x8d8d0a] JVM_handle_bsd_signal+0x125c4a j sun.misc.Unsafe.getByte(J)B+0 j java.nio.MappedByteBuffer.load()Ljava/nio/MappedByteBuffer;+85 j Truncate$2.call()Ljava/lang/Void;+4 Cores in this initial run are pretty useless and I am now rebuilding with FASTDEBUG in the hope of getting enough symbolic information for them to be particularly useful, however, one observation is that the MappedByteBuffer = core always results in the stack being unavailable... root@testbuild1:/usr/ports/java/openjdk8/work/openjdk/build/bsd-x86_64-norm= al-s erver-release/testoutput/jdk_core # gdb -c ./JTwork/java/nio/MappedByteBuffer/Truncate/java.core GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain condition= s. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd". Core was generated by `java'. Program terminated with signal 6, Aborted. #0 0x0000000800f2635a in ?? () (gdb) info stack #0 0x0000000800f2635a in ?? () Cannot access memory at address 0x7fffdf2efc48 (gdb)
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