Re: [Valgrind-users] libjvm.so and valgrind

[Stephane D. <ste...@ex...>]

Hello,

I got the same problem. I never manage to valgrind a program linking
libjvm.so, it always failed with a "not enough memory" error.



On Thu, 2003-10-23 at 18:32, Farid Abizeid wrote:
> Hi
> Was anyone able to load and use libjvm on valgrind ? No matter how much 
> stack memory I give it using  -Xss it still asks for more (I went up to 420 
> MB). I tried debugging the problem with gdb, but gdb could not trace the 
> instrumented code(is there a trick to fix that ?), I could only debug 
> valgrind's code. I don't see why the thread's C stack has to expand that 
> much when using valgrind.
> 
> (from java man page)
> Each Java thread has two stacks: one for Java code and one for C code.  The  
> -Xss  option  sets  the  maximum stack size that can be used by C code in a 
> thread to n.  Every thread that is spawned during the execution of the 
> program passed to java has n as its C stack size.  The default units for n 
> are bytes and n must be > 1000 bytes.
> 
> the following code created the problem:
> /*
> load libjvm.so and returns a handle to JNI_CreateJavaVM
> vmlibpath points to /jre1.4.1/lib/i386/server/libjvm.so
> */
> void *JNU_FindCreateJavaVM(char *vmlibpath)
> {
> //    void *libVM = dlopen(vmlibpath, RTLD_LAZY |RTLD_GLOBAL);
>     void *libVM = dlopen(vmlibpath, RTLD_NOW | RTLD_GLOBAL);
>     if (libVM == NULL) {
>         return NULL;
>     }
>     return dlsym(libVM, "JNI_CreateJavaVM");
> }
> 
> /*
> the Fatal error requesting more memory happens when the following (java api) 
> function is executed
> the handle to this function was returned by the previous funtion
> */
> 
> res  = JNI_CreateJavaVMFcn(&jvm, (void**)&env, &vm_args);
> 
> 
> 
> Using no skin:
> 
> Valgrind --skin=none -v invoke
> 
> =30964== Nulgrind, a binary JIT-compiler for x86-linux.
> ==30964== Copyright (C) 2002-2003, and GNU GPL'd, by Nicholas Nethercote.
> ==30964== Using valgrind-20031012, a program supervision framework for 
> x86-linux.
> ==30964== Copyright (C) 2000-2003, and GNU GPL'd, by Julian Seward.
> ==30964== Command line:
> ==30964==    invoke
> ==30964== Startup, with flags:
> ==30964==    
> --suppressions=/local/fabizeid/valgrnd/lib/valgrind/default.supp
> ==30964==    -v
> ==30964== Reading syms from invoke
> ==30964== Reading syms from /lib/ld-2.2.5.so
> ==30964== Reading syms from /valgrnd/lib/valgrind/vgskin_none.so
> ==30964== Reading syms from /valgrnd/lib/valgrind/valgrind.so
> ==30964== Reading syms from /lib/libdl-2.2.5.so
> ==30964== Reading syms from /valgrnd/lib/valgrind/libpthread.so
> ==30964== Reading syms from /lib/libc-2.2.5.so
> ==30964== Reading syms from /gcc-3.2.3/lib/libgcc_s.so.1
> ==30964== Estimated CPU clock rate is 2003 MHz
> ==30964==
> ==30964== Reading syms from /jre1.4.1/01_gcc3.2/lib/i386/server/libjvm.so
> ==30964== Reading syms from /lib/libnsl-2.2.5.so
> ==30964== Reading syms from /gcc-3.2.3/lib/libstdc++.so.5.0.3
> ==30964== Reading syms from /lib/libm-2.2.5.so
> 
> JNI_CreateJavaVMFcn call happens here and causes the rest of the libraries 
> to be loaded.
> 
> ==30964== Reading syms from 
> /jre1.4.1/01_gcc3.2/lib/i386/native_threads/libhpi.so
> ==30964== Reading syms from /jre1.4.1/01_gcc3.2/lib/i386/libverify.so
> ==30964== Reading syms from 
> /jdk1.4.1/01_gcc3.2/jre/lib/i386/client/libjvm.so
> ==30964== Reading syms from /jre1.4.1/01_gcc3.2/lib/i386/libjava.so
> ==30964== Reading syms from /jdk1.4.1/01_gcc3.2/jre/lib/i386/libverify.so
> ==30964== Reading syms from /jre1.4.1/01_gcc3.2/lib/i386/libzip.so
> ==30964== Reading syms from /jdk1.4.1/01_gcc3.2/jre/lib/i386/libjava.so
> ==30964== valgrind's libpthread.so: IGNORED call to: pthread_attr_destroy
> ==30964== valgrind's libpthread.so: KLUDGED call to: pthread_getattr_np
> ==30964== valgrind's libpthread.so: KLUDGED call to: 
> pthread_attr_getstackaddr
> ==30964== valgrind's libpthread.so: KLUDGED call to: pthread_getattr_np
> ==30964== valgrind's libpthread.so: KLUDGED call to: 
> pthread_attr_getstackaddr
> ==30964== valgrind's libpthread.so: IGNORED call to: pthread_attr_destroy
> ==30964== valgrind's libpthread.so: KLUDGED call to: pthread_getattr_np
> ==30964== valgrind's libpthread.so: KLUDGED call to: 
> pthread_attr_getstackaddr
> Fatal: Stack size too small. Use 'java -Xss' to increase default stack size.
> Abort
> 
> 
> Thanks for any advice
> Farid
> 
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