MATLAB: Do I receive a signal SEGV when I’m trying to debug the MEX-file in dbx

5.88debugMATLAB Compilermexsolarisunix

When I try to debug my MEX-file using the command:
matlab -Ddbx
I receive the following output:
 Reading MATLAB
 Reading ld.so.1
 Reading libut.so
 Reading libmx.so
 <SNIP>
When I subsequently enter the command:
run
I receive the following output:
 Running: MATLAB
 (process id 21034)
 Reading atlas_SunUSX.so
 Reading lapack.so
 Reading libsunperf_isa.so.4
 Reading libjava.so
 Reading libjvm.so
 <SNIP>
and error:
 t@17 (l@17) signal SEGV (no mapping at the fault address) in (unknown) at 0x748ac520
 0x748ac520:             bad opcode
 (/opt/SUNWspro/bin/../WS6U2/bin/sparcv9/dbx)

Best Answer

We have verified that there is a problem that affects the way the Sun Java Virtual Machine communicates among threads on Solaris 8. To work around this issue, instead of starting MATLAB with the command:
run
from within dbx, use the command:
run -nojvm
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