JVM Crash during GC

[Y. S. Ramakrishna]

Hi Shane, that's 6u18 which is about 18 months old. Could you try
the latest, 6u25, and see if the problem reproduces?

The crash is somewhat generic in that we crash when scanning
cards during a scavenge, presumably running across a bad pointer.

If you need to stick with that JVM, you can try turning off
compressed oops explicitly, and/or enable heap verification
to see if it catches anything sooner.

If the problem reproduces with the latest bits, we'd definitely
be interested in a formal bug report with a test case.

-- ramki

On 05/17/11 08:46, Shane Cox wrote:
> Has anyone seen a JVM crash similar to this one?  Wondering if this is a 
> new or existing problem.  Any insights would be appreciated.
> 
> Thanks,
> Shane
> 
> 
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  SIGSEGV (0xb) at pc=0x00002b0f1733cdc9, pid=14532, tid=1093286208
> #
> #  SIGSEGV (0xb) at pc=0x00002b0f1733cdc9, pid=14532, tid=1093286208
> #
> # JRE version: 6.0_18-b07
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (16.0-b13 mixed mode 
> linux-amd64 )
> # Problematic frame:
> # V  [libjvm.so+0x3b1dc9]
> 
> 
> Current thread (0x0000000056588800):  GCTaskThread [stack: 
> 0x0000000000000000,0x0000000000000000] [id=14539]
> 
> siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), 
> si_addr=0x0000000000000025;;
> 
> 
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, 
> C=native code)
> V  [libjvm.so+0x3b1dc9];;  void 
> ParScanClosure::do_oop_work<oopDesc*>(oopDesc**, bool, bool)+0x79
> V  [libjvm.so+0x5e7f03];;  
> ParRootScanWithBarrierTwoGensClosure::do_oop(oopDesc**)+0x13
> V  [libjvm.so+0x3ab18c];;  instanceKlass::oop_oop_iterate_nv_m(oopDesc*, 
> FilteringClosure*, MemRegion)+0x16c
> V  [libjvm.so+0x297aff];;  
> FreeListSpace_DCTOC::walk_mem_region_with_cl_par(MemRegion, HeapWord*, 
> HeapWord*, FilteringClosure*)+0x13f
> V  [libjvm.so+0x297995];;  
> FreeListSpace_DCTOC::walk_mem_region_with_cl(MemRegion, HeapWord*, 
> HeapWord*, FilteringClosure*)+0x35
> V  [libjvm.so+0x66014f];;  Filtering_DCTOC::walk_mem_region(MemRegion, 
> HeapWord*, HeapWord*)+0x5f
> V  [libjvm.so+0x65fee9];;  
> DirtyCardToOopClosure::do_MemRegion(MemRegion)+0xf9
> V  [libjvm.so+0x24153d];;  
> ClearNoncleanCardWrapper::do_MemRegion(MemRegion)+0xdd
> V  [libjvm.so+0x23ffea];;  
> CardTableModRefBS::non_clean_card_iterate_work(MemRegion, 
> MemRegionClosure*, bool)+0x1ca
> V  [libjvm.so+0x5e504b];;  CardTableModRefBS::process_stride(Space*, 
> MemRegion, int, int, DirtyCardToOopClosure*, MemRegionClosure*, bool, 
> signed char**, unsigned long, unsigned long)+0x13b
> V  [libjvm.so+0x5e4e98];;  
> CardTableModRefBS::par_non_clean_card_iterate_work(Space*, MemRegion, 
> DirtyCardToOopClosure*, MemRegionClosure*, bool, int)+0xc8
> V  [libjvm.so+0x23fdfb];;  
> CardTableModRefBS::non_clean_card_iterate(Space*, MemRegion, 
> DirtyCardToOopClosure*, MemRegionClosure*, bool)+0x5b
> V  [libjvm.so+0x240b9a];;  
> CardTableRS::younger_refs_in_space_iterate(Space*, OopsInGenClosure*)+0x8a
> V  [libjvm.so+0x379378];;  
> Generation::younger_refs_in_space_iterate(Space*, OopsInGenClosure*)+0x18
> V  [libjvm.so+0x2c5c5f];;  
> ConcurrentMarkSweepGeneration::younger_refs_iterate(OopsInGenClosure*)+0x4f
> V  [libjvm.so+0x240a8a];;  
> CardTableRS::younger_refs_iterate(Generation*, OopsInGenClosure*)+0x2a
> V  [libjvm.so+0x36bfcd];;  
> GenCollectedHeap::gen_process_strong_roots(int, bool, bool, 
> SharedHeap::ScanningOption, OopsInGenClosure*, OopsInGenClosure*)+0x9d
> V  [libjvm.so+0x5e82c9];;  ParNewGenTask::work(int)+0xc9
> V  [libjvm.so+0x722e0d];;  GangWorker::loop()+0xad
> V  [libjvm.so+0x722d24];;  GangWorker::run()+0x24
> V  [libjvm.so+0x5da2af];;  java_start(Thread*)+0x13f
> 
> VM Arguments:
> jvm_args: -verbose:gc -XX:+PrintGCDetails -XX:+PrintHeapAtGC 
> -XX:+PrintGCDateStamps -XX:+UseParNewGC -Xmx4000m -Xms4000m -Xss256k 
> -XX:PermSize=256M -XX:MaxPermSize=256M -XX:+UseConcMarkSweepGC 
> -XX:+CMSIncrementalMode -XX:+CMSIncrementalPacing 
> -XX:+CMSPermGenSweepingEnabled -XX:+ExplicitGCInvokesConcurrent
> 
> OS:Red Hat Enterprise Linux Server release 5.3 (Tikanga)
> 
> uname:Linux 2.6.18-128.el5 #1 SMP Wed Jan 21 08:45:05 EST 2009 x86_64
> 
> vm_info: Java HotSpot(TM) 64-Bit Server VM (16.0-b13) for linux-amd64 
> JRE (1.6.0_18-b07), built on Dec 17 2009 13:42:22 by "java_re" with gcc 
> 3.2.2 (SuSE Linux)
> 
> 
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