글쓴이 :정종헌 2000년 6월 21일 01:46:23
OS : AIX 4.3.3
J2RE 1.2.2 IBM build ca122-20000509
이런 시스템입니다.
제가 코딩한 RMI Server Application은 실행되면
환경파일을 읽어서 자기 자신을 초기화 합니다.
그리고 일정 시간 동안 Thread.sleep()하고 있다가,
Thread를 하나 생성시켜, 텍스트 데이터가 변경되었는 지를
확인하고, 변경되었을 경우 그 내용을 다시 읽어 저장합니다.
만약, 다른 Application이 RMI로 요청을 하면 요청한 내용의 결과를 리턴해 줍니다.
근데, 이 서버 모듈이 SUN, HP-UX, NT등에서는 문제가 없는데, 유독 AIX에서 core를 생성시키면서 죽습니다.
core를 생성시킬 때, dump text를 만드는데, 그 내용은 아래와 같습니다.
Tue Jun 13 19:59:17 2000
SIGSEGV received at 3003cf54 in . Processing terminated.
Current Thread Details
----------------------
"RMI TCP Connection(144)-10.3.201.30" (TID:0x80126228, sys_thread_t:0x309915
b0, state:R, native ID:0x8bb) prio=5
at java.lang.reflect.Method.invoke(Native Method)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java(Compil
ed Code))
at sun.rmi.transport.Transport$1.run(Transport.java(Compiled Code))
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java(Compiled Code)
)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java(C
ompiled Code))
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport
.java:634)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
unavailable - iar 3003cf54 not in text area
-------------------------------------------------------------------------
J2RE 1.2.2 IBM build ca122-20000509
Operating Environment
---------------------
Host : websvr.nacf.co.kr:10.3.201.30
OS Level : AIX 4.3.3.0
Processors -
Architecture : POWER_RS (impl: POWER_RS2, ver: PV_RS2)
How Many : 1
Enabled : 1
User Limits (in bytes except for NOFILE and NPROC) -
RLIMIT_FSIZE : 1073741312
RLIMIT_DATA : 1342177280
RLIMIT_STACK : 33554432
RLIMIT_CORE : 1073741312
RLIMIT_NOFILE : 2000
NPROC(max) : 400
Page Space (in blocks) -
/dev/hd6: size=131072, free=121350
Application Environment
-----------------------
Application Environment
-----------------------
Signal Handlers -
SIGINT : ignored
SIGQUIT : intrDispatchMD (libhpi.a)
SIGILL : intrDispatchMD (libhpi.a)
SIGTRAP : unknown handler (libjitc.a)
SIGABRT : intrDispatchMD (libhpi.a)
SIGEMT : intrDispatchMD (libhpi.a)
SIGFPE : intrDispatchMD (libhpi.a)
SIGBUS : intrDispatchMD (libhpi.a)
SIGSEGV : intrDispatchMD (libhpi.a)
SIGSYS : intrDispatchMD (libhpi.a)
SIGPIPE : ignored
SIGUSR1 : sigusr1Handler (libhpi.a)
SIGUSR2 : unknown handler (libjitc.a)
Environment Variables -
_=/usr/java_dev2/jre/sh/../bin/java
LANG=ko_KR
LOGIN=zoi
IMQCONFIGCL=/etc/IMNSearch/dbcshelp
NLSPATH=/usr/lib/nls/msg/%L/%N:/usr/lib/nls/msg/%L/%N.cat
DBLANG=en_us/0333
PATH=/informix/bin:/usr/java_dev2/jre/sh:/usr/java_dev2/sh:/usr/bin:/etc:/usr/sb
in:/usr/ucb:/usr/bin/X11:/sbin:/usr/local/bin:/usr/bin:/etc:/usr/sbin:/usr/ucb:/
home/zoi/bin:/usr/bin/X11:/sbin:.
LC__FASTMSG=true
IMQCONFIGSRV=/etc/IMNSearch
CGI_DIRECTORY=/var/docsearch/cgi-bin
EDITOR=/usr/bin/vi
CLASSPATH=.:/home1/vcs/jar/VcsComm.jar:/usr/jsdk/lib/jsdk.jar
LOGNAME=zoi
MAIL=/usr/spool/mail/zoi
LOCPATH=/usr/lib/nls/loc
PS1=websvr:$PWD>
DB_LOCALE=ko_kr.ksc
TERMCAP=/informix/etc/termcap
DOCUMENT_SERVER_MACHINE_NAME=localhost
USER=zoi
AUTHSTATE=compat
LC_MESSAGES=en_US
CLIENT_LOCALE=ko_kr.ksc
SHELL=/usr/bin/ksh
ODMDIR=/etc/objrepos
JAVAHOME=/usr/java_dev2/jre/sh/..
DOCUMENT_SERVER_PORT=49213
XFILESEARCHPATH=/usr/java_dev2/jre/sh/../lib/locale/%L/%T/%N%S:
SERVER_LOCALE=ko_kr.ksc
HOME=/home/zoi
SERVER_LOCALE=ko_kr.ksc
HOME=/home/zoi
INFORMIXDIR=/informix
TERM=vt100
MAILMSG=[YOU HAVE NEW MAIL]
ONCONFIG=onconfig
PWD=/home1/vcs/bin/SessionManager
DOCUMENT_DIRECTORY=/usr/docsearch/html
TZ=KORST-9
AIXTHREAD_SCOPE=S
INFORMIXSERVER=web
A__z=! LOGNAME
LIBPATH=/usr/java_dev2/jre/sh/../bin:/usr/java_dev2/jre/sh/../bin/classic::/info
rmix/lib:/informix/lib/esql
Loaded Libraries (sizes in bytes)
---------------------------------
/usr/java_dev2/jre/bin/libnet.a
filesize : 51723
text start : d12b4000
text size : 7b57
data start : 306b2370
data size : 338
/usr/java_dev2/jre/bin/libjitc.a
filesize : 2191895
text start : d197d000
text size : 1b6a34
data start : 302d48b8
data size : c9dc
/usr/lib/libiconv.a
filesize : 377832
text start : d002e100
text size : 13f3a
data start : f0542da0
data size : a574
/usr/lib/libi18n.a
filesize : 122287
text start : d00a4100
text size : 7834
data start : f0587440
data size : 1114
/usr/lib/nls/loc/ko_KR
filesize : 1450075
text start : d0322000
text size : 161591
data start : d0484130
data size : 160b2c
/usr/java_dev2/jre/sh/../bin/libzip.a
filesize : 101933
/usr/java_dev2/jre/sh/../bin/libzip.a
filesize : 101933
text start : d0b52000
text size : 12774
data start : 30081288
data size : 1e98
/usr/java_dev2/jre/sh/../bin/libhpi.a
filesize : 82878
text start : d00af000
text size : a36c
data start : 3003fcc0
data size : b54
/usr/java_dev2/jre/sh/../bin/libxhpi.a
filesize : 8871
text start : d00a3000
text size : f29
data start : 3003e948
data size : 1a8
/usr/java_dev2/jre/sh/../bin/libjava.a
filesize : 366191
text start : d0069000
text size : 39f7e
data start : 30037508
data size : 6420
/usr/java_dev2/jre/sh/../bin/classic/libjvm.a
filesize : 1289123
text start : d0a74000
text size : dd406
data start : 30011a58
data size : 25148
/usr/lib/libdl.a
filesize : 5248
text start : d00680f8
text size : 1e0
data start : f01380f8
data size : 0
/usr/lib/libbsd.a
filesize : 62186
text start : d00c24e0
text size : 7deb
data start : f00f2b28
data size : 1460
/usr/lpp/xlC/lib/libC.a
filesize : 2610937
text start : d0eaf360
text size : 5982
data start : f01f9760
data size : a08
/usr/lpp/xlC/lib/libC.a
data size : a08
/usr/lpp/xlC/lib/libC.a
filesize : 2610937
text start : d0d9f660
text size : 5fca
data start : f00f5460
data size : 83c
/usr/lpp/xlC/lib/libC.a
filesize : 2610937
text start : d0e3d7c0
text size : 6c174
data start : f04f3dc0
data size : 113c4
/usr/lpp/xlC/lib/libC.a
filesize : 2610937
text start : d0be4070
text size : b756
data start : f00f431c
data size : 1c
/usr/lib/libpthreads.a
filesize : 712412
text start : d010e000
text size : 2290
data start : f04b1000
data size : 41004
/usr/lib/libpthreads.a
filesize : 712412
text start : d1b5d000
text size : 20174
data start : f03d1000
data size : 400c
/usr/lpp/xlC/lib/libC.a
filesize : 2610937
text start : d0a14100
text size : 33653
data start : f01f4d00
data size : 411c
/usr/lib/libcrypt.a
filesize : 11167
text start : d00250f8
text size : 87a
data start : f00dc528
data size : 13c
/usr/lib/libc.a
filesize : 6367431
text start : d1d4a720
text size : 1c0845
data start : f041fda0
data size : 6d108
data start : f041fda0
data size : 6d108
"RMI TCP Connection(144)-10.3.201.30" (TID:0x80126228, sys_thread_t:0x309915
b0, state:R, native ID:0x8bb) prio=5
at java.lang.reflect.Method.invoke(Native Method)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java(Compil
ed Code))
at sun.rmi.transport.Transport$1.run(Transport.java(Compiled Code))
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java(Compiled Code)
)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java(C
ompiled Code))
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport
.java:634)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
unavailable - iar 3003cf54 not in text area
-------------------------------------------------------------------------
"Thread-1" (TID:0x80033360, sys_thread_t:0x3000bc70, state:CW, native ID:0x1
) prio=5
----- Native Stack -----
unavailable - iar 0 not in text area
-------------------------------------------------------------------------
"Thread-0" (TID:0x800333a0, sys_thread_t:0x306ba650, state:CW, native ID:0xe
0f) prio=5
at java.lang.Thread.sleep(Native Method)
at SessionServer.run(SessionServer.java:85)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
unavailable - iar 0 not in text area
-------------------------------------------------------------------------
"RMI LeaseChecker" (TID:0x80033460, sys_thread_t:0x306909f0, state:CW, nativ
e ID:0xb0c) prio=5
at java.lang.Thread.sleep(Native Method)
at sun.rmi.transport.DGCImpl$LeaseChecker.run(DGCImpl.java:303)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
unavailable - iar 302d4a88 not in text area
-------------------------------------------------------------------------
unavailable - iar 302d4a88 not in text area
-------------------------------------------------------------------------
"RMI RenewClean-[10.3.201.30:41118]" (TID:0x800334e0, sys_thread_t:0x3063be1
0, state:CW, native ID:0x90a) prio=5
at java.lang.Object.wait(Native Method)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java(Compiled Code
))
at sun.rmi.transport.DGCClient$EndpointEntry$RenewCleanThread.run(DGCCli
ent.java:419)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
unavailable - iar 0 not in text area
-------------------------------------------------------------------------
"GC Daemon" (TID:0x800335a8, sys_thread_t:0x305d2180, state:CW, native ID:0x
708) prio=2
at java.lang.Object.wait(Native Method)
at sun.misc.GC$Daemon.run(GC.java:107)
----- Native Stack -----
unavailable - iar 3078d900 not in text area
-------------------------------------------------------------------------
"RMI Reaper" (TID:0x800335e8, sys_thread_t:0x305b3ad0, state:CW, native ID:0
x607) prio=5
at java.lang.Object.wait(Native Method)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:114)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:129)
at sun.rmi.transport.ObjectTable$Reaper.run(ObjectTable.java:288)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
unavailable - iar 0 not in text area
-------------------------------------------------------------------------
"RMI TCP Accept-2" (TID:0x80033628, sys_thread_t:0x305b26a0, state:R, native
ID:0x506) prio=5
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:412)
at java.net.ServerSocket.implAccept(ServerSocket.java:242)
at java.net.ServerSocket.accept(ServerSocket.java:226)
at sun.rmi.transport.tcp.TCPTransport.run(TCPTransport.java:295)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
sysAccept
JVM_Accept
sysAccept
JVM_Accept
Java_java_net_PlainSocketImpl_socketAccept
mmisInvoke_O_VHelper
entryCmp
-------------------------------------------------------------------------
"RMI TCP Accept-1" (TID:0x80033668, sys_thread_t:0x3054f9b0, state:R, native
ID:0x405) prio=5
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:412)
at java.net.ServerSocket.implAccept(ServerSocket.java:242)
at java.net.ServerSocket.accept(ServerSocket.java:226)
at sun.rmi.transport.tcp.TCPTransport.run(TCPTransport.java:295)
at java.lang.Thread.run(Thread.java:481)
----- Native Stack -----
sysAccept
JVM_Accept
Java_java_net_PlainSocketImpl_socketAccept
mmisInvoke_O_VHelper
entryCmp
-------------------------------------------------------------------------
"Finalizer" (TID:0x80033728, sys_thread_t:0x300e33b0, state:CW, native ID:0x
304) prio=8
at java.lang.Object.wait(Native Method)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java(Compiled Code
))
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java(Compiled Code
))
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:176)
----- Native Stack -----
unavailable - iar 0 not in text area
-------------------------------------------------------------------------
"Reference Handler" (TID:0x80033768, sys_thread_t:0x300d95a0, state:CW, nati
ve ID:0x203) prio=10
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:426)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
----- Native Stack -----
_pthread_ksleep
_pthread_event_wait
_cond_wait_local
_cond_wait
pthread_cond_wait
_cond_wait
pthread_cond_wait
condvarWait
sysMonitorWait
lkMonitorWait
JVM_MonitorWait
torWait0 갶^D|^H^B?륚
-------------------------------------------------------------------------
"Signal dispatcher" (TID:0x800337a8, sys_thread_t:0x300d8c20, state:CW, nati
ve ID:0x102) prio=5
----- Native Stack -----
unavailable - iar 0 not in text area
-------------------------------------------------------------------------
Monitor pool info:
Initial monitor count: 32
Minimum number of free monitors before expansion: 5
Pool will next be expanded by: 16
Current total number of monitors: 32
Current number of free monitors: 18
Monitor Pool Dump (inflated object-monitors):
sys_mon_t:0x30009ed8 infl_mon_t: 0x30009b48:
java.lang.ref.Reference$Lock@8003B750/8003B758: <unowned>
Waiting to be notified:
"Reference Handler" (0x300d95a0)
sys_mon_t:0x30009f58 infl_mon_t: 0x30009b64:
java.lang.ref.ReferenceQueue$Lock@8003B3A0/8003B3A8: <unowned>
Waiting to be notified:
"Finalizer" (0x300e33b0)
sys_mon_t:0x30009fd8 infl_mon_t: 0x30009b80:
java.lang.ref.ReferenceQueue$Lock@814318A0/814318A8: <unowned>
Waiting to be notified:
"RMI Reaper" (0x305b3ad0)
sys_mon_t:0x3000a418 infl_mon_t: 0x30009b9c:
sun.misc.GC$LatencyLock@81451308/81451310: <unowned>
Waiting to be notified:
"GC Daemon" (0x305d2180)
sys_mon_t:0x3000a518 infl_mon_t: 0x30009bd4:
java.lang.ref.ReferenceQueue$Lock@81569740/81569748: <unowned>
Waiting to be notified:
"RMI RenewClean-[10.3.201.30:41118]" (0x3063be10)
JVM System Monitor Dump (registered monitors):
Integer lock access-lock: <unowned>
Sleep lock: <unowned>
Waiting to be notified:
Sleep lock: <unowned>
Waiting to be notified:
"Thread-0" (0x306ba650)
"RMI LeaseChecker" (0x306909f0)
Method trace lock: <unowned>
UTF8 Cache lock: <unowned>
Heap lock: <unowned>
Rewrite Code lock: <unowned>
Monitor Cache lock: owner "RMI TCP Connection(144)-10.3.201.30" (0x309915b0)
1 entry
JNI Pinning lock: <unowned>
JNI Global Reference lock: <unowned>
Classloader lock: <unowned>
Linking class lock: <unowned>
Binclass lock: <unowned>
Monitor Registry lock: owner "RMI TCP Connection(144)-10.3.201.30" (0x309915
b0) 1 entry
Thread queue lock: owner "RMI TCP Connection(144)-10.3.201.30" (0x309915b0)
1 entry
Waiting to be notified:
"Thread-1" (0x3000bc70)
Thread identifiers (as used in flat monitors):
ident e "RMI TCP Connection(144)-10.3.201.30" (0x309915b0) ee 0x309914e8
ident 2 "Thread-1" (0x3000bc70) ee 0x3000bba8
ident 10 "Thread-0" (0x306ba650) ee 0x306ba588
ident d "RMI LeaseChecker" (0x306909f0) ee 0x30690928
ident b "RMI RenewClean-[10.3.201.30:41118]" (0x3063be10) ee 0x3063bd48
ident 9 "GC Daemon" (0x305d2180) ee 0x305d20b8
ident 8 "RMI Reaper" (0x305b3ad0) ee 0x305b3a08
ident 7 "RMI TCP Accept-2" (0x305b26a0) ee 0x305b25d8
ident 6 "RMI TCP Accept-1" (0x3054f9b0) ee 0x3054f8e8
ident 5 "Finalizer" (0x300e33b0) ee 0x300e32e8
ident 4 "Reference Handler" (0x300d95a0) ee 0x300d94d8
ident 3 "Signal dispatcher" (0x300d8c20) ee 0x300d8b58
Java Object Monitor Dump (flat & inflated object-monitors):
java.lang.ref.ReferenceQueue$Lock@8003B3A0/8003B3A8
locknflags 80000200 Monitor inflated infl_mon 0x30009b64
java.lang.ref.Reference$Lock@8003B750/8003B758
locknflags 80000100 Monitor inflated infl_mon 0x30009b48
java.lang.ref.ReferenceQueue$Lock@814318A0/814318A8
locknflags 80000300 Monitor inflated infl_mon 0x30009b80
java.net.PlainSocketImpl@81433968/81433970
locknflags 00060000 Flat locked by threadIdent 6. Entrycount 1
sun.misc.GC$LatencyLock@81451308/81451310
locknflags 80000400 Monitor inflated infl_mon 0x30009b9c
java.net.PlainSocketImpl@81451950/81451958
locknflags 00070000 Flat locked by threadIdent 7. Entrycount 1
java.net.PlainSocketImpl@81451950/81451958
locknflags 00070000 Flat locked by threadIdent 7. Entrycount 1
java.lang.ref.ReferenceQueue$Lock@81569740/81569748
locknflags 80000600 Monitor inflated infl_mon 0x30009bd4
쫌 전문적인 내용인가요?
전, 여기서 알구 싶은 거는, 어느 부분이 문제를 발생키는가입니다.
가상머신의 문제인지, 아님, 제 코드의 문제인지...
또한, 가상머신 문제라면, RMI에서인지, 아님 Thread에서인지...