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From "Alexey Petrenko" <alexey.a.petre...@gmail.com>
Subject Re: [drlvm][em64t] drlvm broken on em64t?
Date Tue, 12 Dec 2006 21:34:15 GMT
I got the following errors while runnig kernel and other vm tests on Suse/x86:
    [junit] Running org.apache.harmony.lang.generics.ClassLoaderTest
    [junit] SIGSEGV in VM code.
    [junit] Stack trace:
    [junit]     1: strlen (??:-1)
    [junit]     2: GetSystemProperty
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmi/src/vmi.cpp:150)
    [junit]     3: readClassPathFromPropertiesFile (../shared/luniglob.c:275)
    [junit]     4: JNI_OnLoad (../shared/luniglob.c:126)
    [junit]     5: find_call_JNI_OnLoad
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/util/natives_support.cpp:119)
    [junit]     6: natives_load_library(char const*, bool*, int*)
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/util/natives_support.cpp:287)
    [junit]     7: ClassLoader::LoadNativeLibrary(char const*)
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1046)
    [junit]     8: BootstrapClassLoader::Initialize(ManagedObject*)
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1369)
    [junit]     9: bootstrap_initial_java_classes
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/init/vm_init.cpp:292)
    [junit]     10: preload_classes
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/init/vm_init.cpp:334)
    [junit]     11: vm_init1(JavaVM_Internal*, JavaVMInitArgs*)
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/init/vm_init.cpp:691)
    [junit]     12: JNI_CreateJavaVM
(/nfs/pb/home/aapetren/work/harmony/working_vm/vm/vmcore/src/jni/jni.cpp:495)
    [junit]     13: ?? (??:-1)
    [junit]     14: ?? (??:-1)
    [junit]     15: ?? (??:-1)
    [junit]     16: hysig_protect
(/nfs/pb/home/aapetren/work/harmony/working_classlib/modules/portlib/src/main/native/port/unix/hysignal.c:283)
    [junit]     17: ?? (??:-1)
    [junit]     18: __libc_start_main (??:-1)
    [junit]     19: ?? (??:-1)
    [junit] <end of stack trace>
    [junit] Tests FAILED

And something like this on windows...

SY, Alexey

P.S. I do not have latest Gregory's patch yet.

2006/12/13, Geir Magnusson Jr. <geir@pobox.com>:
>
>
> Gregory Shimansky wrote:
> > Geir Magnusson Jr. wrote:
> >> This must be from the recent properties refactoring...
> >
> > I've found out the reason of the change. It is r486100 in classlib.
> > Previously there was no call to GetSystemProperty about
> > org.apache.harmony.boot.class.path. I've fixed drlvm function
> > GetSystemProperty to return VMI_ERROR_NOT_FOUND in case a property
> > cannot be found and set valuePtr to NULL (or otherwise luniglob crashes).
> >
> > This still doesn't work because org.apache.harmony.boot.class.path is
> > not set anywhere, and then bootstrap class loader fails to initialize.
> > I'm still trying to find out what else had changed.
> >
>
> That property is constructed by luni when the .so is loaded.  If this
> doesn't work on em64t, it shouldn't work anywhere...
>
> geir
>
>
> >> Gregory Shimansky wrote:
> >>> Geir Magnusson Jr. wrote:
> >>>> No one?
> >>>
> >>> I think I've reproduced the same problem on ia32 fedora (on other
> >>> linuxes everything works ok). I'm trying to investigate. The problem
> >>> is in function GetSystemProperty in vm/vmi/src/vmi.cpp
> >>>
> >>> 146     vmiError JNICALL
> >>> 147     GetSystemProperty(VMInterface *vmi, char *key, char **valuePtr)
> >>> 148     {
> >>> 149         char* value = get_property(key, JAVA_PROPERTIES);
> >>> 150         *valuePtr = strdup(value);
> >>> 151         destroy_property_value(value);
> >>> 152         return VMI_ERROR_NONE;
> >>> 153     }
> >>>
> >>> called like this:
> >>>
> >>> GetSystemProperty (vmi=0x97ca60, key=0x941e5c
> >>> "org.apache.harmony.boot.class.path", valuePtr=0xbf98cd18)
> >>>
> >>> The function get_property returns NULL, so strdup in line 150
> >>> crashes. I don't know yet why
> >>> get_property("org.apache.harmony.boot.class.path", JAVA_PROPERTIES)
> >>> returns NULL, but calling strdup unconditionally doesn't seem to be a
> >>> good idea to me too.
> >>>
> >>>> Geir Magnusson Jr. wrote:
> >>>>> Trying to get the snapshots out... :)
> >>>>>
> >>>>> I was trying r486163 and drlvm just crashes...
> >>>>>
> >>>>> Anyone else seeing this?  I'm on ubuntu 6 x86_64.  I don't want
to
> >>>>> blame luni, but w/ strace, I see the following :
> >>>>>
> >>>>> open("/home/geir/dev/apache/harmony/enhanced/trunk/working_vm/build/deploy/jdk/jre/bin/libhyluni.so",
> >>>>> O_RDONLY) = 3
> >>>>> read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0
> >>>>> i\0\0\0"..., 640) = 640
> >>>>> fstat(3, {st_mode=S_IFREG|0755, st_size=1238859, ...}) = 0
> >>>>> mmap(NULL, 1263224, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
> >>>>> 3, 0) = 0x2aaabf6e8000
> >>>>> mprotect(0x2aaabf71d000, 1046136, PROT_NONE) = 0
> >>>>> mmap(0x2aaabf81c000, 4096, PROT_READ|PROT_WRITE,
> >>>>> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x34000) = 0x2aaabf81c000
> >>>>> close(3)                                = 0
> >>>>> rt_sigaction(SIGPIPE, NULL, {SIG_DFL}, 8) = 0
> >>>>> rt_sigaction(SIGPIPE, {SIG_IGN}, {SIG_DFL}, 8) = 0
> >>>>> stat("/home/geir/dev/apache/harmony/enhanced/trunk/working_vm/build/deploy/jdk/jre/lib/boot/bootclasspath.properties",
> >>>>> {st_mode=S_IFREG|0644, st_size=6360, ...}) = 0
> >>>>> open("/home/geir/dev/apache/harmony/enhanced/trunk/working_vm/build/deploy/jdk/jre/lib/boot/bootclasspath.properties",
> >>>>> O_RDONLY) = 3
> >>>>> fstat(3, {st_mode=S_IFREG|0644, st_size=6360, ...}) = 0
> >>>>> mmap(NULL, 6360, PROT_READ|PROT_WRITE, MAP_PRIVATE, 3, 0) =
> >>>>> 0x2aaabf81d000
> >>>>> close(3)                                = 0
> >>>>> munmap(0x2aaabf81d000, 6360)            = 0
> >>>>> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> >>>>> rt_sigaction(SIGSEGV, {SIG_DFL}, {0x2aaaac098530, [],
> >>>>> SA_RESTORER|SA_STACK|SA_SIGINFO, 0x2aaaab8554d0}, 8) = 0
> >>>>> rt_sigreturn(0)                         = 0
> >>>>> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> >>>>> +++ killed by SIGSEGV +++
> >>>>>
> >>>>>
> >>>>>
> >>>>> geir
> >>>>
> >>>
> >>>
> >>
> >
> >
>

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