The panic was caused by performing a translation buffer (tlb) sync.
from the pmap code through the elan adapter.   The address range
for the tlb sync. was too large, and took too much time.   This time
delay prevents the elan adapter from reponding to the heartbeat
signal in a appropriate amount of time.


"cmn_err: CE_PANIC: elan0: heartbeat pacemaker - flatlined ...."


panic
xcpu_panic_ipir
cpu_ip_intr
_XentInt
FindAndLockTask
elan3mmu_coproc_tbi
pmap_coproc_invalidate
pmap_tbsync
pmap_install_l3
pmap_enter_bigpage
vm_map_bigpg
u_anon_update_pmap
u_anon_fault_zfod
u_anon_fault
u_map_fault
vm_fault
trap
_XentMM
