Switching back from 64 bit jvm process to 32 bit process

I have my customer, go-live on WLS 9.2 MP2 on Sun Solaris 10 on 64 -bit. We have faced several crashes related to different reasons. I had applied 3X4R patch from Weblogic as well. Now, because they are on production and server crash is unacceptable, I need to rollback to 32 bit version that is more stable. So, can anyone point me to documentation that states the steps to rolling back to 32 bit process from 64 bit. The concern here is to ensure that rolling back along with 64 bit patches from weblogic shouldn't create any new issue.
Please let me know.
Thanks.

First of all I am kind of surprised you've got a
speed gain of 20% using the 64 bit mode. I thought in
general there was not much speed gain and sometimes
even a loss of performance. My own reason for using
64bit mode is to be able to address more than 4gb of
memory.
Saying that, it seems you have the choice of either
run in 64bit mode and connect somehow (RMI???) to a
32bit JVM that will run your 32bit native libraries.
This seems to be a bit of a fragile and dingy
solution to me, which probably quickly loses any
speedgains you get from running in 64bit mode.
Or you just go for the 32bit mode all over, and hope
that some day in future your 3rd part libraries
become available in 64 bit mode.
Honestly, unless you're going to address lots of
memory, I think this last solution is the most viable
option.Good advice!

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