I have a cisco 2811 router.It is crash so many times.When system restart have as follows：
Traceback=
$0 : 00000000, AT : 00000000, v0 : 00000000, v1 : 00000000
a0 : 00000000, a1 : 00000000, a2 : 00000000, a3 : 00000000
t0 : 00000000, t1 : 00000000, t2 : 00000000, t3 : 00000000
t4 : 00000000, t5 : 00000000, t6 : 00000000, t7 : 00000000
s0 : 00000000, s1 : 00000000, s2 : 00000000, s3 : 00000000
s4 : 00000000, s5 : 00000000, s6 : 00000000, s7 : 00000000
t8 : 00000000, t9 : 00000000, k0 : 00000000, k1 : 00000000
gp : 00000000, sp : 00000000, s8 : 00000000, ra : 00000000
EPC : 00000000, ErrorEPC : 00000000, SREG : 00000000
MDLO : 00000000, MDHI : 00000000, BadVaddr : 00000000
DATA_START : 0x42F46DF0
Cause 00000000 (Code 0x0): Interrupt exception
File flash:crashinfo_20131015-110223 open failed (-1): No more root directory entries available
File flash:crashinfo_20131015-110223 open failed (-1): No more root directory entries available
File flash:crashinfo_20131015-110223 open failed (-1): No more root directory entries available
No warm reboot Storage
*** System received a System Error ***
signal= 0x16, code= 0x0, context= 0x458a3298
PC = 0x40081b6c, Cause = 0x20, Status Reg = 0x34008002Traceback=
$0 : 00000000, AT : 00000000, v0 : 00000000, v1 : 00000000
a0 : 00000000, a1 : 00000000, a2 : 00000000, a3 : 00000000
t0 : 00000000, t1 : 00000000, t2 : 00000000, t3 : 00000000
t4 : 00000000, t5 : 00000000, t6 : 00000000, t7 : 00000000
s0 : 00000000, s1 : 00000000, s2 : 00000000, s3 : 00000000
s4 : 00000000, s5 : 00000000, s6 : 00000000, s7 : 00000000
t8 : 00000000, t9 : 00000000, k0 : 00000000, k1 : 00000000
gp : 00000000, sp : 00000000, s8 : 00000000, ra : 00000000
EPC : 00000000, ErrorEPC : 00000000, SREG : 00000000
MDLO : 00000000, MDHI : 00000000, BadVaddr : 00000000
DATA_START : 0x42F46DF0
Cause 00000000 (Code 0x0): Interrupt exception
File flash:crashinfo_20131015-110223 open failed (-1): No more root directory entries available
File flash:crashinfo_20131015-110223 open failed (-1): No more root directory entries available
File flash:crashinfo_20131015-110223 open failed (-1): No more root directory entries available
No warm reboot Storage
*** System received a System Error ***
signal= 0x16, code= 0x0, context= 0x458a3298
PC = 0x40081b6c, Cause = 0x20, Status Reg = 0x34008002
This router is contain HWIC-2T and NM-8A/S.I search about crashinfo,it's CRC errors and must replaced RAM to troubleshooting.
But I finally replaced NM-8A/S to troubleshooting.
How to determine where the failure from the log？
