If anyone is implementing Oracle 11g R2 (11.2.0.2) with extended cluster might get affected by this bugs.
In my case, this bug comes out when we tested to offline the whole second Disk array on the Failgroup 2 which we using ASM normal redundancy.
Update 8 July 2011:
Oracle released the merge patch. The test result is much better, the instances was still rebooted. Only until we set the hidden parameter ,recommend by Oracle support then the instances survived. The parameter is
_lm_rcvr_hang_kill=FALSE
Do not use this parameter unless Oracle support told us to do so.
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