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From "Nataly Naumova" <natalya.s.naum...@gmail.com>
Subject Re: [drlvm] Status of drlvm
Date Wed, 19 Jul 2006 10:20:27 GMT
Vladimir,

I've applied both patches, but `segfault` is reproducible nevertheless.
gdb says that:
(gdb) run Hello
Starting program:
/export/lab_drlbuild/test_tmp/20060719/trunk/build/lnx_ia32_gcc_debug/deploy/jre/bin/ij
Hello
[Thread debugging using libthread_db enabled]
[New Thread 1083593376 (LWP 11375)]
[New Thread 1425222576 (LWP 11477)]
[New Thread 1427856304 (LWP 11479)]
[New Thread 1430490032 (LWP 11480)]
[New Thread 1433123760 (LWP 11482)]
[New Thread 1446890416 (LWP 11489)]
[New Thread 1450089392 (LWP 11508)]
[New Thread 1453329328 (LWP 11509)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1453329328 (LWP 11509)]
0x40783aa2 in malloc_consolidate () from /lib/tls/libc.so.6

Thamks.
-- 
Nataly Naumova,
Intel Middleware Products Division

On 7/18/06, Vladimir Gorr <vvgorr@gmail.com> wrote:
> Nataly,
>
> I believe you need to accept both patches mentioned by Silikh in the initial
> e-mail of this thread,
> namely, H-898 & H-853. Could you please check if the 'seg fault' issue
> disappears for gcc 3.3.4
> as well?
>
> Thanks,
> Vladimir.
>
> On 7/18/06, Nataly Naumova <natalya.s.naumova@gmail.com> wrote:
> >
> > Vladimir and all,
> > I've compiled with gcc 3.3.4 and received `seg faults` since July,08
> > till now. I'm not applying any patches, and take just *pure* drlvm
> > from SVN.
> > DRLVM build for July,05 is fine, then the build was broken (on linux).
> > Maybe we should look through the commits since July,05 till July 08 ?
> > There were not too many commits there.
> >
> > Thanks.
> >
> > --
> > Nataly Naumova,
> > Intel Middleware Products Division
> >
> > On 7/18/06, Vladimir Gorr <vvgorr@gmail.com> wrote:
> > > 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.
> > > > > > >
> > > > > > >
> > > > > >
> > ---------------------------------------------------------------------
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> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > Andrey Chernyshev
> > > > > > Intel Middleware Products Division
> > > > > >
> > > > > >
> > ---------------------------------------------------------------------
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