8u102 NMethod sweeper related Hotspot crashes
Vitaly Davidovich
vitalyd at gmail.com
Tue Dec 6 18:12:23 UTC 2016
Hi Vladimir,
On Tue, Dec 6, 2016 at 12:57 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com
> wrote:
> Could be https://bugs.openjdk.java.net/browse/JDK-8139595 (not backported
> to 8u).
>
> I can't find anything else with remove_dependent_nmethod() on call stack
> in JBS.
It does seem like it could be related, but yeah, it's unclear. Hoping
someone else here may have an idea.
Thanks
>
> Vladimir
>
> On 12/6/16 9:33 AM, Vitaly Davidovich wrote:
>
>> Btw, for now I've advised the group hitting these to turn off tiered
>> compilation to reduce code cache pressure and thus hopefully avoid
>> whatever bug(s) is lurking here.
>>
>> I should've also mentioned that this doesn't happen all the time, of
>> course, so there's no reliable repro.
>>
>> On Tue, Dec 6, 2016 at 12:02 PM Vitaly Davidovich <vitalyd at gmail.com
>> <mailto:vitalyd at gmail.com>> wrote:
>>
>> Hi guys,
>>
>> I have a couple of Hotspot crashes to report - both occur in nmethod
>> sweeping/flushing. I'm going to strip down the hs_err content, but
>> let me know if there's something else you need from there. Are
>> these known? A quick google suggests there are some bugs around
>> nmethod sweeping, but I couldn't find anything exactly like this.
>>
>> Let me know if you need more info.
>>
>> Thanks
>>
>> *The first is:*
>>
>>
>> #
>> # A fatal error has been detected by the Java Runtime Environment:
>> #
>> # Internal Error (instanceKlass.cpp:1995), pid=15444,
>> tid=0x00002b1fd0186700
>> # guarantee(val >= 0) failed: Underflow: -1
>> #
>> # JRE version: Java(TM) SE Runtime Environment (8.0_102-b14) (build
>> 1.8.0_102-b14)
>> # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.102-b14 mixed mode
>> linux-amd64 )
>> #
>> # If you would like to submit a bug report, please visit:
>> # http://bugreport.java.com/bugreport/crash.jsp
>> #
>>
>> --------------- T H R E A D ---------------
>>
>> Current thread (0x00002b1f58056800): JavaThread "C2
>> CompilerThread2" daemon [_thread_in_vm, id=15533,
>> stack(0x00002b1fd0086000,0x00002b1fd0187000)]
>>
>> Stack: [0x00002b1fd0086000,0x00002b1fd0187000],
>> sp=0x00002b1fd0185580, free space=1021k
>> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code,
>> C=native code)
>> V [libjvm.so+0xac52aa] VMError::report_and_die()+0x2ba
>> V [libjvm.so+0x4fba22] report_vm_error(char const*, int, char
>> const*, char const*)+0x62
>> V [libjvm.so+0x63e9b0]
>> InstanceKlass::remove_dependent_nmethod(nmethod*, bool)+0x110
>> V [libjvm.so+0x8e61b3]
>> nmethod::flush_dependencies(BoolObjectClosure*)+0x93
>> V [libjvm.so+0x8ebd5b]
>> nmethod::make_not_entrant_or_zombie(unsigned int)+0x48b
>> V [libjvm.so+0xa2b0cd] NMethodSweeper::process_nmetho
>> d(nmethod*)+0x27d
>> V [libjvm.so+0xa2b468] NMethodSweeper::sweep_code_cache()+0x328
>> V [libjvm.so+0xa2b7d4] NMethodSweeper::possibly_sweep()+0xb4
>> V [libjvm.so+0x4ae105] CompileQueue::get()+0x15
>> V [libjvm.so+0x4b047b] CompileBroker::compiler_thread_loop()+0x18b
>> V [libjvm.so+0xa73ce3] JavaThread::thread_main_inner()+0x103
>> V [libjvm.so+0xa73e2c] JavaThread::run()+0x11c
>> V [libjvm.so+0x9249c8] java_start(Thread*)+0x108
>> C [libpthread.so.0+0x6b50] start_thread+0xd0
>>
>> =>0x00002b1f58056800 JavaThread "C2 CompilerThread2" daemon
>> [_thread_in_vm, id=15533, stack(0x00002b1fd0086000,0x000
>> 02b1fd0187000)]
>>
>> VM state:not at safepoint (normal execution)
>> VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
>> [0x0000000001ac5f40] CodeCache_lock - owner thread: 0x00002b1f58056800
>> [0x0000000001ac7240] CompiledIC_lock - owner thread:
>> 0x00002b1f58056800
>>
>> Heap:
>> PSYoungGen total 16531968K, used 13673471K
>> [0x00002b1b0b200000, 0x00002b1f49900000, 0x00002b1f4b200000)
>> eden space 15297024K, 83% used
>> [0x00002b1b0b200000,0x00002b1e19277f68,0x00002b1eb0c80000)
>> from space 1234944K, 69% used
>> [0x00002b1eb0c80000,0x00002b1ee5507eb0,0x00002b1efc280000)
>> to space 1198080K, 0% used
>> [0x00002b1f00700000,0x00002b1f00700000,0x00002b1f49900000)
>> ParOldGen total 34891264K, used 26246257K
>> [0x00002b128b200000, 0x00002b1adcb80000, 0x00002b1b0b200000)
>> object space 34891264K, 75% used
>> [0x00002b128b200000,0x00002b18cd11c630,0x00002b1adcb80000)
>> Metaspace used 211158K, capacity 610281K, committed 610528K,
>> reserved 612352K
>>
>> Polling page: 0x00002b1281166000
>>
>> CodeCache: size=102400Kb used=71326Kb max_used=81914Kb free=31073Kb
>> bounds [0x00002b1284ab2000, 0x00002b128aeb2000, 0x00002b128aeb2000]
>> total_blobs=13619 nmethods=12436 adapters=1089
>> compilation: enabled
>>
>> *Here's the second:*
>>
>> #
>> # A fatal error has been detected by the Java Runtime Environment:
>> #
>> # Internal Error (instanceKlass.cpp:2018), pid=83979,
>> tid=0x00002bb97feba700
>> # Error: ShouldNotReachHere()
>> #
>> # JRE version: Java(TM) SE Runtime Environment (8.0_102-b14) (build
>> 1.8.0_102-b14)
>> # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.102-b14 mixed mode
>> linux-amd64 )
>> #
>> # If you would like to submit a bug report, please visit:
>> # http://bugreport.java.com/bugreport/crash.jsp
>> #
>>
>> --------------- T H R E A D ---------------
>>
>> Current thread (0x00002bb8f40cf800): JavaThread "C2
>> CompilerThread6" daemon [_thread_in_vm, id=84042,
>> stack(0x00002bb97fdba000,0x00002bb97febb000)]
>>
>> Stack: [0x00002bb97fdba000,0x00002bb97febb000],
>> sp=0x00002bb97feb9710, free space=1021k
>> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code,
>> C=native code)
>> V [libjvm.so+0xac52aa] VMError::report_and_die()+0x2ba
>> V [libjvm.so+0x4fbd92] report_should_not_reach_here(char const*,
>> int)+0x52
>> V [libjvm.so+0x63e8fb]
>> InstanceKlass::remove_dependent_nmethod(nmethod*, bool)+0x5b
>> V [libjvm.so+0x8e61b3]
>> nmethod::flush_dependencies(BoolObjectClosure*)+0x93
>> V [libjvm.so+0x8ebd5b]
>> nmethod::make_not_entrant_or_zombie(unsigned int)+0x48b
>> V [libjvm.so+0xa2b0cd] NMethodSweeper::process_nmetho
>> d(nmethod*)+0x27d
>> V [libjvm.so+0xa2b468] NMethodSweeper::sweep_code_cache()+0x328
>> V [libjvm.so+0xa2b7d4] NMethodSweeper::possibly_sweep()+0xb4
>> V [libjvm.so+0x4ae105] CompileQueue::get()+0x15
>> V [libjvm.so+0x4b047b] CompileBroker::compiler_thread_loop()+0x18b
>> V [libjvm.so+0xa73ce3] JavaThread::thread_main_inner()+0x103
>> V [libjvm.so+0xa73e2c] JavaThread::run()+0x11c
>> V [libjvm.so+0x9249c8] java_start(Thread*)+0x108
>> C [libpthread.so.0+0x6b50] start_thread+0xd0
>>
>> =>0x00002bb8f40cf800 JavaThread "C2 CompilerThread6" daemon
>> [_thread_in_vm, id=84042, stack(0x00002bb97fdba000,0x000
>> 02bb97febb000)]
>> VM state:not at safepoint (normal execution)
>>
>> VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
>> [0x0000000001858f40] CodeCache_lock - owner thread: 0x00002bb8f40cf800
>> [0x000000000185a240] CompiledIC_lock - owner thread:
>> 0x00002bb8f40cf800
>>
>> Heap:
>> PSYoungGen total 18567168K, used 3149269K [0x00002bb3cdf00000,
>> 0x00002bb8e3400000, 0x00002bb8e3400000)
>> eden space 15838208K, 5% used [0x00002bb3cdf00000,0x00002bb4
>> 02b26e00,0x00002bb794a00000)
>> from space 2728960K, 83% used [0x00002bb83ab00000,0x00002bb8
>> c624e6b0,0x00002bb8e1400000)
>> to space 2720768K, 0% used [0x00002bb794a00000,0x00002bb7
>> 94a00000,0x00002bb83ab00000)
>> ParOldGen total 23083520K, used 21102913K [0x00002ba9a3400000,
>> 0x00002baf24280000, 0x00002bb3cdf00000)
>> object space 23083520K, 91% used [0x00002ba9a3400000,0x00002bae
>> ab450478,0x00002baf24280000)
>> Metaspace used 167926K, capacity 377784K, committed 377856K,
>> reserved 378880K
>>
>>
>>
>> Polling page: 0x00002ba999461000
>>
>> CodeCache: size=102400Kb used=72829Kb max_used=81642Kb free=29570Kb
>> bounds [0x00002ba99cdad000, 0x00002ba9a31ad000, 0x00002ba9a31ad000]
>> total_blobs=14843 nmethods=13668 adapters=1082
>> compilation: enabled
>>
>> --
>> Sent from my phone
>>
>
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