Dissociating a Plex from a Disk Group Causes Panic (4657088)

Problem Summary: Dissociating or detaching a plex from a disk group under Sun Cluster may panic the cluster node with following panic string:

panic[cpu2]/thread=30002901460: BAD TRAP: type=31 rp=2a101b1d200 addr=40 mmu_fsr=0 occurred in module "vxfs" due to a NULL pointer dereference

Workaround: Before dissociating or detaching a plex from a disk group, unmount the corresponding file system.