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From "Vladimir Gorr" <vvg...@gmail.com>
Subject Re: [drlvm] Status of drlvm
Date Tue, 18 Jul 2006 13:03:07 GMT
The reason of the 'seg fault' issue is clear for me now.
I see this issue occurs when I used the gcc of 3.4.2 version.
All works fine for the *gcc (GCC) 3.3.3 (SuSE Linux).*
Could anybody else confirm or deny this?

Thanks in advance,
Vladimir.

On 7/18/06, Vladimir Gorr <vvgorr@gmail.com> wrote:
>
>  Ignore please my previous e-mail. I was slightly mistaken :-(.
>
> Thanks,
>  Vladimir.
>
>
>  On 7/18/06, Vladimir Gorr <vvgorr@gmail.com> wrote:
> >
> >  Probably I've understood the reason of the segmentation fault on Linux
> > platform.
> >
> > I almost sure it is related with the build system. An argument why I
> > think so is the following.
> >
> > The basic_istringstream() class from the /usr/include/g++/sstream
> > include should be used
> >
> > to construct the configuration environment for the execution manager
> > (vm/em/src/DrlEMIml.cpp file).
> >
> > However the recent build uses this class from the
> > /usr/lib/libstdc++.so.5 library instead and as a result
> >
> > DRLVM fails. I'm going to continue this investigation and prepare a
> > patch to fix this issue
> >
> > if someone doesn't already know how. Volunteers?
> >
> > Thanks,
> >  Vladimir.
> >
> >
> >  On 7/18/06, Andrey Chernyshev < a.y.chernyshev@gmail.com> wrote:
> > >
> > > On 7/17/06, Vladimir Gorr < vvgorr@gmail.com> wrote:
> > > > On 7/17/06, Salikh Zakirov < Salikh.Zakirov@intel.com> wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > Can anyone share their experience on running DRLVM built from SVN?
> > > > >
> > > > > On my workstations, it requires several fixes in order to run
> > > properly:
> > > > >
> > > > > HARMONY-898 'workaround to get correct hythr.dll' (both for Linux
> > > and
> > > > > Windows)
> > > > > HARMONY-853 'DRLVM+classlib segfaults in hyzlib' (on Linux)
> > > > >
> > > > > Without HARMONY-898, DRLVM segfaults after reading NULL from TLS.
> > > > > Without HARMONY-853, DRLVM segfaults in libhyzlib.so on Linux.
> > > > >
> > > > > I would suggest that the patches from HARMONY-898 and HARMONY-853
> > > be
> > > > > applied,
> > > > > because DRLVM doesn't work at all for me without these fixes.
> > > > >
> > > > > Any other experiences? Is anyone besides me running DRLVM from
> > > SVN?
> > > >
> > > >
> > > >
> > > > I've built the DRLVM on Linux for the following cases:
> > > >
> > > > 1. w/o patches listed above;
> > > >
> > > > 2. w/ H-898 patch;
> > > >
> > > > 3. w/ H-898 & H-853 patches.
> > > >
> > > >
> > > >
> > > > 'Segmentation fault' occurs for all cases, unfortunately.
> > > >
> > >
> > > I was able to run most of smoke tests on Linux a few days ago, but now
> > >
> > > I'm having the same segfault failure.
> > > Some observations are:
> > >
> > > - In the interpreted mode (-Xint option) it reports
> > > ClassNotFoundException, so
> > > it seems VM can no longer load the classes from jars on Linux. I was
> > > able to run
> > > a single "Hello" class though.
> > >
> > > - Segfault actually happens during VM shutdown, after the main() is
> > > already completed with CNFE error. I wasn't able to find the exact
> > > point of segfault though - it seems it happens somewhere in a jitted
> > > code, gdb doesn't show a much of useful info in that case:
> > >
> > > #0  0x40788aa2 in malloc_consolidate () from /lib/tls/libc.so.6
> > > #1  0x00000010 in ?? ()
> > > #2  0x4083c7c8 in main_arena () from /lib/tls/libc.so.6
> > > #3  0x00000000 in ?? ()
> > > #4  0x4083c7b4 in main_arena () from /lib/tls/libc.so.6
> > > #5  0x4083c798 in main_arena () from /lib/tls/libc.so.6
> > > #6  0x4083c780 in __malloc_initialize_hook () from /lib/tls/libc.so.6
> > > #7  0x4083aff4 in ?? () from /lib/tls/libc.so.6
> > > #8  0x0855cdd0 in ?? ()
> > > #9  0x00037230 in ?? ()
> > > #10 0x56500158 in ?? ()
> > > #11 0x40789bf6 in _int_free () from /lib/tls/libc.so.6
> > > Previous frame inner to this frame (corrupt stack?)
> > >
> > > I'm continuing investigation, the same behavior is observed on Linux
> > > if run with classlib's launcher.
> > >
> > > Thanks,
> > > Andrey.
> > >
> > > >
> > > >
> > > > Thanks,
> > > >
> > > > Vladimir.
> > > >
> > > >
> > > ---------------------------------------------------------------------
> > > > > Terms of use : http://incubator.apache.org/harmony/mailing.html
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> > > harmony-dev-help@incubator.apache.org
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> > > --
> > > Andrey Chernyshev
> > > Intel Middleware Products Division
> > >
> > > ---------------------------------------------------------------------
> > > Terms of use : http://incubator.apache.org/harmony/mailing.html
> > > To unsubscribe, e-mail: harmony-dev-unsubscribe@incubator.apache.org
> > > For additional commands, e-mail: harmony-dev-help@incubator.apache.org
> > >
> > >
> >
>

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