segfault with 8u5
Vladimir Kozlov
vladimir.kozlov at oracle.com
Fri Sep 12 01:03:30 UTC 2014
Nice!
You can remove changes I gave to you and apply next code and see if it
helps. It may crash in an other place.
Vladimir
diff -r fe1f65b0a2d8 src/share/vm/opto/doCall.cpp
--- a/src/share/vm/opto/doCall.cpp Wed Sep 10 09:05:31 2014 -0700
+++ b/src/share/vm/opto/doCall.cpp Thu Sep 11 18:00:29 2014 -0700
@@ -802,6 +802,11 @@
if( ex_node->is_Phi() ) {
ex_klass_node = new (C) PhiNode( ex_node->in(0),
TypeKlassPtr::OBJECT );
for( uint i = 1; i < ex_node->req(); i++ ) {
+ Node* ex_in = ex_node->in(i);
+ if (ex_in == top() || ex_in == NULL) {
+ ex_klass_node->init_req(i, top());
+ continue;
+ }
Node* p = basic_plus_adr( ex_node->in(i), ex_node->in(i),
oopDesc::klass_offset_in_bytes() );
Node* k = _gvn.transform( LoadKlassNode::make(_gvn,
immutable_memory(), p, TypeInstPtr::KLASS, TypeKlassPtr::OBJECT) );
ex_klass_node->init_req( i, k );
On 9/11/14 5:31 PM, Martin Traverso wrote:
> Vladimir,
>
> Did you get next message in output before the crash?
> "*** Exception not InstPtr"
>
>
> Not that I can tell.
>
>
> It could happen if it is dead part of the IR graph.
> Can you add next debug output code to Hotspot's doCall.cpp (patch
> attached) and test with it?
>
>
> Here's the output:
>
> ******** Expecting TypeClassPtr 1 ********
>
> *** compilation continue
>
> *** save_ex_node:
>
> 900 CastPP === 899 575 [[ 891 909 909 1016 932 1110 958
> 978 970 993 1016 1004 1004 1013 ]] #java/lang/Exception:NotNull
> * Oop:java/lang/Exception:NotNull * !jvms:
> HiveMetastoreApiStats$1::call @ bci:97 RetryDriver::run @ bci:25
>
> 1013 CheckCastPP === 1011 900 [[ 923 1021 1021 1031 1040
> 1050 1066 1085 1077 1100 1110 1176 1176 ]]
> #org/apache/hadoop/hive/metastore/api/NoSuchObjectException:NotNull:exact *
> Oop:org/apache/hadoop/hive/metastore/api/NoSuchObjectException:NotNull:exact
> * !jvms: HiveMetastoreApiStats$1::call @ bci:118 RetryDriver::run @ bci:25
>
> 1000 Region === 1000 1097 _ 990 [[ 1000 942 1107 1108 1109
> 1110 1121 1124 1175 ]] !jvms: HiveMetastoreApiStats$1::call @
> bci:135 RetryDriver::run @ bci:25
>
> 1110 Phi === 1000 1013 1 900 [[ 942 1115 1132 1150
> 1142 1165 1115 1172 1172 ]] #java/lang/Exception:NotNull *
> Oop:java/lang/Exception:NotNull * !jvms: HiveMetastoreApiStats$1::call @
> bci:135 RetryDriver::run @ bci:25
>
> *** ex_node:
>
> 900 CastPP === 899 575 [[ 891 909 909 1016 932 1110 958
> 978 970 993 1016 1004 1004 1013 ]] #java/lang/Exception:NotNull
> * Oop:java/lang/Exception:NotNull * !jvms:
> HiveMetastoreApiStats$1::call @ bci:97 RetryDriver::run @ bci:25
>
> 1013 CheckCastPP === 1011 900 [[ 923 1021 1021 1031 1040
> 1050 1066 1085 1077 1100 1110 1176 1176 ]]
> #org/apache/hadoop/hive/metastore/api/NoSuchObjectException:NotNull:exact *
> Oop:org/apache/hadoop/hive/metastore/api/NoSuchObjectException:NotNull:exact
> * !jvms: HiveMetastoreApiStats$1::call @ bci:118 RetryDriver::run @ bci:25
>
> 1000 Region === 1000 1097 _ 990 [[ 1000 942 1107 1108 1109
> 1110 1121 1124 1175 ]] !jvms: HiveMetastoreApiStats$1::call @
> bci:135 RetryDriver::run @ bci:25
>
> 1110 Phi === 1000 1013 1 900 [[ 942 1115 1132 1150
> 1142 1165 1115 1172 1172 ]] #java/lang/Exception:NotNull *
> Oop:java/lang/Exception:NotNull * !jvms: HiveMetastoreApiStats$1::call @
> bci:135 RetryDriver::run @ bci:25
>
>
>
> I may need to ask you do more such testing if it is fine with you.
>
>
> Absolutely! Just let me know.
>
> Thanks,
> Martin
>
>
>
>
> Regards,
> Vladimir
>
> On 9/11/14 2:05 PM, Martin Traverso wrote:
>
> Hi Vladimir,
>
> I finally got around to building a fastdebug VM. I don't see the
> first
> crash anymore (great!), but the second one still happens. Here's
> the output:
>
> https://gist.github.com/__martint/abea9be3df700236ec0b
> <https://gist.github.com/martint/abea9be3df700236ec0b>
>
> Let me know if there's anything other information you'd like me
> to gather.
>
> Thanks!
> Martin
>
> On Wed, Jul 30, 2014 at 10:29 AM, Vladimir Kozlov
> <vladimir.kozlov at oracle.com <mailto:vladimir.kozlov at oracle.com>
> <mailto:vladimir.kozlov at __oracle.com
> <mailto:vladimir.kozlov at oracle.com>>> wrote:
>
> Martin,
>
> It would be also nice if you can build fastdebug VM and run
> with it.
> cd hotspot/make; make fastdebug LP64=1
>
> Thanks,
> Vladimir
>
>
> On 7/30/14 9:40 AM, Vladimir Kozlov wrote:
>
> 8029381 was fixed in jdk9 and 8u20 (which should be
> release soon):
>
> http://hg.openjdk.java.net/____jdk8u/jdk8u/hotspot/rev/____0b9500028980
> <http://hg.openjdk.java.net/__jdk8u/jdk8u/hotspot/rev/__0b9500028980>
>
> <http://hg.openjdk.java.net/__jdk8u/jdk8u/hotspot/rev/__0b9500028980
> <http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/rev/0b9500028980>>
>
> I will look on C2 crash more. I don't remember any recent
> problems in
> catch_inline_exceptions().
>
> Regards,
> Vladimir
>
> On 5/19/14 12:24 PM, Martin Traverso wrote:
>
> The failure happened in C1 JIT compiler (first
> tier).
> You can try
> to switch off -XX:-TieredCompilation.
>
>
> That seemed to have worked around this particular
> issue.
>
> However, we ran into another crash:
>
> Stack: [0x00000000430c8000,____0x00000000431c9000],
> sp=0x00000000431c5980,
> free space=1014k
> Native frames: (J=compiled Java code,
> j=interpreted, Vv=VM code,
> C=native code)
>
> V [libjvm.so+0x814115]
> LoadKlassNode::make(PhaseGVN&, Node*,
> Node*,
> TypePtr const*, TypeKlassPtr const*)+0x45
> V [libjvm.so+0x51ab06]
>
> Parse::catch_inline_____exceptions(SafePointNode*)+____0x936
>
> V [libjvm.so+0x8c1a5a] Parse::do_exceptions()+0xba
> V [libjvm.so+0x8c6100] Parse::do_one_block()+0x180
> V [libjvm.so+0x8c6377] Parse::do_all_blocks()+0x127
> V [libjvm.so+0x8c95d3] Parse::Parse(JVMState*,
> ciMethod*, float,
> Parse*)+0x15a3
> V [libjvm.so+0x3b6529]
> ParseGenerator::generate(____JVMState*,
> Parse*)+0x99
> V [libjvm.so+0x3b7202]
> PredictedCallGenerator::____generate(JVMState*,
> Parse*)+0x2a2
> V [libjvm.so+0x51aefd] Parse::do_call()+0x1cd
> V [libjvm.so+0x8d3c7a]
> Parse::do_one_bytecode()+____0x32da
> V [libjvm.so+0x8c60f8] Parse::do_one_block()+0x178
>
> V [libjvm.so+0x8c6377] Parse::do_all_blocks()+0x127
> V [libjvm.so+0x8c95d3] Parse::Parse(JVMState*,
> ciMethod*, float,
> Parse*)+0x15a3
>
> V [libjvm.so+0x3b6529]
> ParseGenerator::generate(____JVMState*,
> Parse*)+0x99
> V [libjvm.so+0x46111c] Compile::Compile(ciEnv*,
> C2Compiler*,
> ciMethod*, int, bool, bool, bool)+0x128c
>
> V [libjvm.so+0x3b5008]
> C2Compiler::compile_method(____ciEnv*,
> ciMethod*,
> int)+0x198
> V [libjvm.so+0x46982a]
>
> CompileBroker::invoke_____compiler_on_method(____CompileTask*)+0xc8a
>
> V [libjvm.so+0x46c230]
> CompileBroker::compiler_____thread_loop()+0x620
> V [libjvm.so+0x9e303f]
> JavaThread::thread_main_inner(____)+0xdf
>
> V [libjvm.so+0x9e3205] JavaThread::run()+0x1b5
> V [libjvm.so+0x8a00c8] java_start(Thread*)+0x108
>
>
>
> Full dump here:
> https://gist.github.com/____martint/783cf3e30c17fc897423
> <https://gist.github.com/__martint/783cf3e30c17fc897423>
>
> <https://gist.github.com/__martint/783cf3e30c17fc897423
> <https://gist.github.com/martint/783cf3e30c17fc897423>>
>
>
> The only bug I found which could be related is
> next:
>
> https://bugs.openjdk.java.net/______browse/JDK-8029381
> <https://bugs.openjdk.java.net/____browse/JDK-8029381>
>
> <https://bugs.openjdk.java.__net/__browse/JDK-8029381
> <https://bugs.openjdk.java.net/__browse/JDK-8029381>>
> <https://bugs.openjdk.java.____net/browse/JDK-8029381
> <https://bugs.openjdk.java.__net/browse/JDK-8029381
> <https://bugs.openjdk.java.net/browse/JDK-8029381>>>
>
>
> Unfortunately, I can't see this bug report. I get
> redirected
> to the
> login screen.
>
>
> Thanks!
> Martin
>
>
>
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