I've trace all the logs and here's what I found
TelwiseXOEther#sh context
System was restarted by processor memory parity error at PC 0x60788B6C, address 0x0 at 19:48:22 UTC Fri Jan 4 2008
7200 Software (C7200-JS-M), Version 12.3(14)T7, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Compiled Thu 23-Mar-06 04:43 by pwade
Image text-base: 0x6000905C, data-base: 0x627A2000
Stack trace from system failure:
FP: 0x661335B8, RA: 0x60788B6C
FP: 0x661335D0, RA: 0x6079A7F8
FP: 0x661335E8, RA: 0x60AE580C
FP: 0x66133630, RA: 0x60AE39D4
FP: 0x66133688, RA: 0x60AE5B34
FP: 0x661336D0, RA: 0x60AE3784
FP: 0x66133728, RA: 0x60AE0918
FP: 0x66133760, RA: 0x6103D300
Fault History Buffer:
7200 Software (C7200-JS-M), Version 12.3(14)T7, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Compiled Thu 23-Mar-06 04:43 by pwade
Signal = 20, Code = 0xA005F74B, Uptime 14:31:02
$0 : 00000000, AT : 640A0000, v0 : 00000000, v1 : 00000001
a0 : 64C5F6F4, a1 : 00000001, a2 : 66133784, a3 : 84EF0106
t0 : 00000020, t1 : 3400FF01, t2 : 3400C100, t3 : FFFF00FF
t4 : 60809718, t5 : 6600CDB0, t6 : 00000000, t7 : 6600CDA8
s0 : 654F787C, s1 : 66133650, s2 : 655071A0, s3 : 654E7850
s4 : 654F7814, s5 : 00000009, s6 : 64C5F6F4, s7 : 00000000
t8 : 6600CE20, t9 : 00000000, k0 : 3040D001, k1 : BF800000
gp : 640AB4C8, sp : 661335B8, s8 : 6552416C, ra : 60788B74
EPC : 60813908, SREG : 3400FF05, Cause : 00000400
Error EPC : 60788B6C, BadVaddr : DF
