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From Egor Pasko <egor.pa...@gmail.com>
Subject Re: [drlvm] Trouble Building DRLVM
Date Wed, 04 Oct 2006 07:59:24 GMT
On the 0x1EF day of Apache Harmony Geir Magnusson, Jr. wrote:
> Egor Pasko wrote:
> >>
> >> If invoked with the option "-Xtrace:em", DRLVM prints compilation
> >> events as soon as they occur. What makes real fun is that one method
> >> starts compilation several times (without success) and receives
> >> SEGFAULT after not so many attempts. The bug may be in OPT or in
> >> recompilation, not clear now. Will investigate (first, I'll try to
> >> compile some methods with JET selectively)
> > 
> > the bug is caused by OPT's incorrect compilation of method
> > test_getPackages_V if I move the compilation to JET, the test
> > passes. Investigating...
> > 
> > Moving compilation of _one_ method to JET, while _others_ are compiled
> > with OPT *is easy*. All you have to do is put debug.emconf file to
> > .../jre/bin/default and run with the option -Xem:debug
> This is *really* cool.  (Of course, I assume a patch is forthcoming to
> fix OPT :)

some progress here. I looked through all transformations done by
"memopt", they look OK. Now I suspect an enumeration bug in OPT. I
created HARMONY-1682 with a more detailed description and a mini-test
to reproduce.

Stay tuned

Egor Pasko, Intel Managed Runtime Division

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