Hi,
I have a java (JDK 1.2) application that uses multiple threads.
The application runs really well Jacl (version 1.2.2). However,
when I run the same application using TclBlend (version 1.2.2),
it runs OK sometimes, but about 60% of the time it either core dumps
(segmentation voilation) or results in an NullPointerException.
I am running this on Solaris 2.5.1, using Tcl 8.0.3 and JDK1.2fcs
classic as the Java VM. I used the native threads (libhpi.so)
when compiling TclBlend.
Anyone dealt with applications with multiple threads and TclBlend?
Any advice will be appreciated.
Thanks in advance.
Sandeep Malhotra
(Nortel Networks)
-------------------------------------------------------------
Following is the text that I get at the TCL prompt for the
NullPointerException:
java.lang.NullPointerException
at bay.jets.Automat.demuxPacket(Compiled Code)
at bay.jets.Automat.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)
-------------------------------------------------------------
Part of the screen dump for the core dump (segmentation voilation)
is:
SIGSEGV 11* segmentation violation
si_signo [11]: SIGSEGV 11* segmentation violation
si_errno [0]: Error 0
si_code [1]: SEGV_MAPERR [addr: 0x0]
stackpointer=e9b052d4
Full thread dump Classic VM (JDK-1.2fcs-O, native threads):
"Timer" (TID:0xeb0bfcc8, sys_thread_t:0xa54e88, state:CW, native ID:0xf)
prio=10
.
.
"Automat : 192.32.9.135:1025" (TID:0xeb0c0b30, sys_thread_t:0xa4cdb8,
state:R, native ID:0xe) prio=5
.
.
.
Registered Monitor Dump:
PCMap lock: <unowned>
utf8 hash table: <unowned>
JNI pinning lock: <unowned>
JNI global reference lock: <unowned>
BinClass lock: <unowned>
Class linking lock: <unowned>
System class loader lock: <unowned>
Code rewrite lock: <unowned>
Heap lock: <unowned>
Monitor cache lock: owner "Automat : 192.32.9.135:1025" (0xa4cdb8) 1 entry
Thread queue lock: owner "Automat : 192.32.9.135:1025" (0xa4cdb8) 1 entry
Monitor registry: owner "Automat : 192.32.9.135:1025" (0xa4cdb8) 1 entry
Abort - core dumped
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