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New Member

Memory Parity Error

Hi, I have a very big issue here. My 7206 Router suddenly reboot. I don't know what happen. On the show version it has a message " memory parity error at PC 0x6077DBFC " what does it mean? how do I troubleshoot this?

Thank you in advance


Re: Memory Parity Error

If you have a support contract, contact Cisco TAC.

Otherwise, follow the directions on this URL for diagnostics:

New Member

Re: Memory Parity Error

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:

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:

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


Re: Memory Parity Error

I'm tolled by the TAC, and experience confirms, that this may happen once and the device is fine ever after. It may also start to repeat this kind of reboot at an ever increasing rate.

As we have several customers that insist we replace the supervisor anyway I'm not able to say what the actual ratio is. TAC might be able to.



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