[Sablevm-bugs] [ sablevm-Bugs-705868 ] multiprocessor crashes

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Bugs item #705868, was opened at 2003-03-18 15:58
Message generated for change (Comment added) made by cpickett
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Category: Execution Problem
Group: SableVM
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Chris Pickett (cpickett)
Assigned to: Chris Pickett (cpickett)
Summary: multiprocessor crashes

Initial Comment:

SableVM still segfaults on a multiprocessor, even with
fixes for yield() and _svmf_set_current_env(). 
However, now execution completes 50% of the time.

Attached are parallel and non-parallel matrix multiply
benchmarks.

For non-parallel:

java matmul N

where N is the size of matrix

and for parallel:

java matmul_p N P

where P is the number of processors.

There are no problems on uniprocessors.

Cheers,
Chris

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>Comment By: Chris Pickett (cpickett)
Date: 2004-03-26 19:40

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I tested it and this was the _svmf_enter_object_monitor ()
bug fixed by r1596 in staging.  

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Comment By: Etienne M. Gagnon (egagnon)
Date: 2003-03-22 14:54

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Note: I assume you already know that multi-processor support
is in SableVM's future enhancement list, not its current
feature list... :-)

It would be nice if you could identify the problem more
precisely.


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