It's occuring after JCC calls JNI_CreateJavaVM
cpp.py(529): env = initVM(os.pathsep.join(classpath) or None, **initvm_args)
^^^^^ last python trace before death
Breakpoint 5, initVM (self=0x7ffff7e05048, args=0x7ffff66deac8,
kwds=0x7ffff7e00ec8) at jcc3/sources/jcc.cpp:527
527 if (JNI_CreateJavaVM(&vm, (void **) &vm_env, &vm_args) < 0)
^^^^ last line of jcc.cpp before death
(gdb) step
Program received signal SIGSEGV, Segmentation fault.
0x00007fffe43942b4 in ?? ()
(gdb)
AFTER fixing debians debugging symbols with ln -s
/usr/lib/debug/usr/lib/jvm/java-8-openjdk-amd64
/usr/lib/debug/usr/lib/jvm/java-1.8.0-openjdk-amd64
Breakpoint 1, JNI_CreateJavaVM (vm=0x7fffffffc420, penv=0x7fffffffc418,
args=0x7fffffffc450) at ./src/hotspot/src/share/vm/prims/jni.cpp:5161
5161 ./src/hotspot/src/share/vm/prims/jni.cpp: No such file or directory.
(gdb) s
JNI_CreateJavaVM (vm=0x7fffffffc420, penv=0x7fffffffc418, args=0x7fffffffc450)
at ./src/hotspot/src/share/vm/prims/jni.cpp:5163
5163 in ./src/hotspot/src/share/vm/prims/jni.cpp
(gdb)
/build/gdb-A87voC/gdb-7.12/gdb/inline-frame.c:167: internal-error:
void inline_frame_this_id(frame_info*, void**, frame_id*): Assertion
`frame_id_p (*this_id)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n
This is a bug, please report it. For instructions, see:
<http://www.gnu.org/software/gdb/bugs/>.
What in the name of heck
On Wed, Jul 5, 2017 at 11:48 AM, Joshua Campbell <josh...@ualberta.ca> wrote:
>> But you should get a better stacktrace ?
>
> I got the exact same stacktrace.
>
> $ ldd
> venv3/lib/python3.5/site-packages/JCC-3.0-py3.5-linux-x86_64.egg/libjcc3.so
> linux-vdso.so.1 (0x00007ffcf4eb8000)
> libjava.so =>
> /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/amd64/libjava.so
> (0x00007f412227f000)
> libjvm.so =>
> /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/amd64/server/libjvm.so
> (0x00007f412133d000)
> libpython3.5m.so.1.0 =>
> /usr/lib/x86_64-linux-gnu/libpython3.5m.so.1.0 (0x00007f4120c3a000)
> libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> (0x00007f41208b8000)
> libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f41205b4000)
> libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
> (0x00007f412039b000)
> libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
> (0x00007f412017e000)
> libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f411fddf000)
> libverify.so =>
> /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/amd64/libverify.so
> (0x00007f411fbce000)
> libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f411f9ca000)
> libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1
> (0x00007f411f7a0000)
> libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f411f584000)
> libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1
> (0x00007f411f381000)
> /lib64/ld-linux-x86-64.so.2 (0x000055857b9dd000)
>
> I did verify it's compiling with -g
>
> x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall
> -Wstrict-prototypes -g
> -fdebug-prefix-map=/build/python3.5-MLq5fN/python3.5-3.5.3=.
> -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
> -D_FORTIFY_SOURCE=2 -fPIC -g -D_java_generics -DJCC_VER="3.0"
> -I/usr/lib/jvm/java-1.8.0-openjdk-amd64/include
> -I/usr/lib/jvm/java-1.8.0-openjdk-amd64/include/linux -I_jcc3 -Ijcc3/sources
> -I/usr/include/python3.5m
> -I/home/joshua/unnaturalcode/venv3/include/python3.5m -c
> _jcc3/java/lang/String.cpp -o
> build/temp.linux-x86_64-3.5/_jcc3/java/lang/String.o -DPYTHON
> -fno-strict-aliasing -Wno-write-strings -O0 -g -DDEBUG
>
> But it's still producing
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007fffe47eb2b4 in ?? ()
> (gdb) bt
> #0 0x00007fffe47eb2b4 in ?? ()
> #1 0x0000000000000246 in ?? ()
> #2 0x00007fffe47eb160 in ?? ()
> #3 0x00007fffffffc840 in ?? ()
> #4 0x00007fffffffc7e0 in ?? ()
> #5 0x00007ffff6006075 in VM_Version::get_processor_features() ()
> from /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/amd64/server/libjvm.so
> Backtrace stopped: previous frame inner to this frame (corrupt stack?)
>
>
>
>
> On Wed, Jul 5, 2017 at 11:38 AM, Andi Vajda <va...@apache.org> wrote:
>>
>>
>> On Jul 5, 2017, at 18:56, Joshua Campbell <josh...@ualberta.ca> wrote:
>>
>> >> What version if java is this jcc built with ?
>> >> To build jcc for debugging with gcc add --debug to the build command.
>> >> You
>> > should then have symbols visible to gdb.
>> >
>> > You mean with setup.py build --debug ? I tried that on trunk and got the
>> > same result.
>>
>> But you should get a better stacktrace ?
>>
>> >> Is the version of java used here the same as during jcc build time ?
>> >
>> > Yes I made sure of that and uninstalled all but openjdk and rebuilt.
>>
>> Did you verify this via running 'ldd' on the shared libraries involved ?
>>
>> That being said, it could be something different of course !
>>
>> Andi..
>>
>> >
>> >> On Wed, Jul 5, 2017 at 10:46 AM, Andi Vajda <va...@apache.org> wrote:
>> >>
>> >>
>> >>> On Jul 5, 2017, at 18:25, Joshua Campbell <josh...@ualberta.ca> wrote:
>> >>>
>> >>> This segfault appears to occur within the JVM code on both
>> >> oracle-java8-jdk
>> >>> and
>> >>> java-1.8.0-openjdk-amd64. I installed the JVM debugging symbols but it
>> >>> didn't seem to help.
>> >>>
>> >>> Occurs under python 2 and 3. I don't know how to debug this any
>> >>> further.
>> >>>
>> >>> 0 joshua@buttercup unnaturalcode 17609$ python3 -m virtualenv -p
>> >>> python3
>> >>> venv3 Already using interpreter /usr/bin/python3
>> >>> Using base prefix '/usr'
>> >>> New python executable in /home/joshua/unnaturalcode/venv3/bin/python3
>> >>> Also creating executable in
>> >>> /home/joshua/unnaturalcode/venv3/bin/python
>> >>> Installing setuptools, pkg_resources, pip, wheel...done.
>> >>> 0 joshua@buttercup unnaturalcode 17610$ source venv3/bin/activate
>> >>> 0 joshua@buttercup unnaturalcode 17611$ which python
>> >>> /home/joshua/unnaturalcode/venv3/bin/python
>> >>> 0 joshua@buttercup unnaturalcode 17616$ pip install jcc --no-cache-dir
>> >>> Collecting jcc
>> >>> Downloading JCC-3.0.tar.gz (176kB)
>> >>> 100% |████████████████████████████████| 184kB 3.4MB/s
>> >>> Installing collected packages: jcc
>> >>> Running setup.py install for jcc ... done
>> >>
>> >> What version if java is this jcc built with ?
>> >> To build jcc for debugging with gcc add --debug to the build command.
>> >> You
>> >> should then have symbols visible to gdb.
>> >>
>> >>> Successfully installed jcc-3.0
>> >>> 0 joshua@buttercup unnaturalcode 17617$ gdb --args
>> >>> /home/joshua/unnaturalcode/venv3/bin/python -m jcc --jar
>> >>
>> >> Is the version of java used here the same as during jcc build time ?
>> >>
>> >> Andi..
>> >>
>> >>> java/lex-java/target/lex-java-1.0-SNAPSHOT.jar
>> >>> GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
>> >>> Copyright (C) 2016 Free Software Foundation, Inc.
>> >>> License GPLv3+: GNU GPL version 3 or later
>> >>> <http://gnu.org/licenses/gpl.
>> >> html
>> >>>>
>> >>> This is free software: you are free to change and redistribute it.
>> >>> There is NO WARRANTY, to the extent permitted by law. Type "show
>> >> copying"
>> >>> and "show warranty" for details.
>> >>> This GDB was configured as "x86_64-linux-gnu".
>> >>> Type "show configuration" for configuration details.
>> >>> For bug reporting instructions, please see:
>> >>> <http://www.gnu.org/software/gdb/bugs/>.
>> >>> Find the GDB manual and other documentation resources online at:
>> >>> <http://www.gnu.org/software/gdb/documentation/>.
>> >>> For help, type "help".
>> >>> Type "apropos word" to search for commands related to "word"...
>> >>> Reading symbols from /home/joshua/unnaturalcode/
>> >> venv3/bin/python...Reading
>> >>> symbols from
>> >>> /usr/lib/debug/.build-id/db/fc2e1a3c58b6d241b3f9af7b2fb3a2
>> >> 4b81b90e.debug...done.
>> >>> done.
>> >>> (gdb) r
>> >>> Starting program: /home/joshua/unnaturalcode/venv3/bin/python -m jcc
>> >> --jar
>> >>> java/lex-java/target/lex-java-1.0-SNAPSHOT.jar
>> >>> [Thread debugging using libthread_db enabled]
>> >>> Using host libthread_db library "/lib/x86_64-linux-gnu/
>> >> libthread_db.so.1".
>> >>> Installing openjdk unwinder
>> >>> Traceback (most recent call last):
>> >>> File
>> >>> "/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/
>> >> jre/lib/amd64/server/
>> >>> libjvm.so-gdb.py", line 52, in <module>
>> >>> class Types(object):
>> >>> File
>> >>> "/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/
>> >> jre/lib/amd64/server/
>> >>> libjvm.so-gdb.py", line 66, in Types
>> >>> nmethodp_t = gdb.lookup_type('nmethod').pointer()
>> >>> gdb.error: No type named nmethod.
>> >>>
>> >>> Program received signal SIGSEGV, Segmentation fault.
>> >>> 0x00007fffe47f22b4 in ?? ()
>> >>> (gdb) bt
>> >>> #0 0x00007fffe47f22b4 in ?? ()
>> >>> #1 0x0000000000000246 in ?? ()
>> >>> #2 0x00007fffe47f2160 in ?? ()
>> >>> #3 0x00007fffffffc8c0 in ?? ()
>> >>> #4 0x00007fffffffc860 in ?? ()
>> >>> #5 0x00007ffff600d075 in VM_Version::get_processor_features() ()
>> >>> from /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/amd64/
>> >> server/libjvm.so
>> >>> Backtrace stopped: previous frame inner to this frame (corrupt stack?)
>> >>>
>> >>>
>> >>>
>> >>> --
>> >>> Joshua Charles Campbell
>> >>> Ph.D. Student and Research Assistant
>> >>> Department of Computing Science
>> >>> University of Alberta
>> >>> josh...@ualberta.ca
>> >>
>> >>
>> >
>> >
>> > --
>> > Joshua Charles Campbell
>> > Ph.D. Student and Research Assistant
>> > Department of Computing Science
>> > University of Alberta
>> > josh...@ualberta.ca
>>
>
>
>
> --
> Joshua Charles Campbell
> Ph.D. Student and Research Assistant
> Department of Computing Science
> University of Alberta
> josh...@ualberta.ca
--
Joshua Charles Campbell
Ph.D. Student and Research Assistant
Department of Computing Science
University of Alberta
josh...@ualberta.ca
