JDK-8060467 : CMS: small OldPLABSize and -XX:-ResizePLAB cause assert(ResizePLAB || n_blks == OldPLABSize) failed: Error
- Type: Bug
- Component: hotspot
- Sub-Component: gc
- Affected Version: 6,7,8,9
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2014-10-14
- Updated: 2015-06-03
- Resolved: 2014-11-11
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Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
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| JDK 8 | JDK 9 |
|---|---|
8u40 b16Fixed  |
9Fixed |
Description
CMS crashes with assertion failure during GC when ResizePLAB is disabled and OldPLABSize is pretty small: # # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (/HUDSON/workspace/8-2-build-linux-amd64/jdk8u40/1614/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp:2644), pid=14574, tid=139647074510592 # assert(ResizePLAB || n_blks == OldPLABSize) failed: Error # # JRE version: Java(TM) SE Runtime Environment (8.0_40-b08) (build 1.8.0_40-ea-fastdebug-b08) # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.40-b12-fastdebug mixed mode linux-amd64 compressed oops) # Core dump written. Default location: /tmp/sa/core or core.14574 # # If you would like to submit a bug report, please visit: # http://bugreport.sun.com/bugreport/crash.jsp # --------------- T H R E A D --------------- Current thread (0x00007f0218026800): GCTaskThread [stack: 0x00007f021e352000,0x00007f021e453000] [id=14579] Stack: [0x00007f021e352000,0x00007f021e453000], sp=0x00007f021e450c40, free space=1019k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0xfddbd2] VMError::report_and_die()+0x2d2 V [libjvm.so+0x7211d4] report_vm_error(char const*, int, char const*, char const*)+0x84 V [libjvm.so+0x6775af] CFLS_LAB::get_from_global_pool(unsigned long, AdaptiveFreeList<FreeChunk>*)+0x1af V [libjvm.so+0x6778d0] CFLS_LAB::alloc(unsigned long)+0x310 V [libjvm.so+0x6e9640] ConcurrentMarkSweepGeneration::par_promote(int, oop, markOopDesc*, unsigned long)+0x140 V [libjvm.so+0xd97287] ParNewGeneration::copy_to_survivor_space_avoiding_promotion_undo(ParScanThreadState*, oop, unsigned long, markOopDesc*)+0x1267 V [libjvm.so+0x92a416] ParNewGeneration::copy_to_survivor_space(ParScanThreadState*, oop, unsigned long, markOopDesc*)+0xd6 V [libjvm.so+0x92bc8d] void ParScanClosure::do_oop_work<oop>(oop*, bool, bool)+0x1ad V [libjvm.so+0x72fe2f] KlassScanClosure::do_klass(Klass*)+0xaf V [libjvm.so+0x6361bd] ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)+0x7d V [libjvm.so+0x632869] ClassLoaderDataGraph::roots_cld_do(CLDClosure*, CLDClosure*)+0x39 V [libjvm.so+0xe707d4] SharedHeap::process_roots(bool, SharedHeap::ScanningOption, OopClosure*, OopClosure*, CLDClosure*, CLDClosure*, CodeBlobClosure*)+0x434 V [libjvm.so+0x885309] GenCollectedHeap::gen_process_roots(int, bool, bool, SharedHeap::ScanningOption, OopsInGenClosure*, OopsInGenClosure*, OopsInGenClosure*, CLDClosure*, CLDClosure*, CodeBlobClosure*)+0x49 V [libjvm.so+0x88553d] GenCollectedHeap::gen_process_roots(int, bool, bool, SharedHeap::ScanningOption, bool, OopsInGenClosure*, OopsInGenClosure*, CLDClosure*)+0x8d V [libjvm.so+0xd91bc5] ParNewGenTask::work(unsigned int)+0x255 V [libjvm.so+0x102a166] GangWorker::loop()+0x2b6 V [libjvm.so+0xd6a798] java_start(Thread*)+0x108
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